--- title: "Flights to London (LHR) from Philadelphia (PHL) | Expedia.co.uk" description: "Reserve one-way or return flights from Philadelphia to London with no change fee on selected flights. Earn your airline miles on top of our rewards! Get 2026 flight deals for now!" canonical: "https://www.expedia.co.uk/lp/flights/phl/lhr/philadelphia-to-london" language: en-GB market: GB currency: GBP prices_as_of: 2026-11-15T01:55:34Z --- # £223 Cheap Flights from Philadelphia (PHL) to London (LHR) ![A dinosaur skeleton in an airport terminal.](https://images.trvl-media.com/place/5392460/b83f1d58-5479-446b-ab9a-9f738500127b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) [View £223 flight on Thu, 25 Feb 2027](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:25/02/2027TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:222.50&airProductToken=AQphCi4IwmwSBDExNjAY71kgwZMBKMGYpgMwkZmmAzhMQABYAWoCRE5yCE9MMkxTVlkxCi8IwmwSBDE2MjAYwZMBIOuJASiInaYDMJ-gpgM4TEABWAFqAkROcghPTDJMU1ZZMRIKCAEQARgBKgJCNhgBIgQIARABKAIoAygEMAE) Photo by Heathrow Airports Limited ## Popular airlines from Philadelphia International Airport (PHL) to Heathrow Airport (LHR) [Aer Lingus](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:29/11/2026TANYT&leg2=from:LHR,to:PHL,departure:06/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EI"}}]) [Finnair](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:29/11/2026TANYT&leg2=from:LHR,to:PHL,departure:06/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AY"}}]) [British Airways](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:29/11/2026TANYT&leg2=from:LHR,to:PHL,departure:06/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) [Iberia](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:29/11/2026TANYT&leg2=from:LHR,to:PHL,departure:06/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"IB"}}]) [Air Canada](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:29/11/2026TANYT&leg2=from:LHR,to:PHL,departure:06/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) [JetBlue Airways](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:29/11/2026TANYT&leg2=from:LHR,to:PHL,departure:06/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) [TAP Portugal](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:29/11/2026TANYT&leg2=from:LHR,to:PHL,departure:06/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"TP"}}]) ### Be in the know Get alerts if flight prices drop or rise\* ### Book smarter Save up to 25% on select hotels after you book a flight\* ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Cheap Flights from Philadelphia to London (PHL-LHR) Prices were available within the past 7 days and start at £223 for one-way flights and £614 for return, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return [Select JetBlue Airways flight, departing Sun, 6 Dec from Philadelphia to London, returning Fri, 11 Dec, priced at £614 Found 5 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:06/12/2026TANYT&leg2=from:LHR,to:PHL,departure:11/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:613.49&airProductToken=AQpgCi0IwmwSAzM2MBjvWSDBkwEopomfAzD3iZ8DOExAAFgBagJETnIIT0wwMkJWWTEKLwjCbBIEMTYyMBjBkwEg64kBKOmNnwMw%5F5CfAzhMQAFYAWoCRE5yCE9MMDJCVlkxCmAKLwjCbBIEMTYyMRjriQEgwZMBKJC%5FnwMw68KfAzhMQABYAWoCRE5yCE9MMDJCVlkxCi0IwmwSAzg1ORjBkwEg71kojcWfAzDvxZ8DOExAAVgBagJETnIIT0wwMkJWWTESCggBEAEYASoCQjYYASIECAEQASgCKAMoBDAB) Sun, 6 Dec - Fri, 11 Dec · PHL · LHR · From £614 · Return [Select JetBlue Airways flight, departing Fri, 27 Nov from Philadelphia to London, returning Wed, 9 Dec, priced at £616 Found 3 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:27/11/2026TANYT&leg2=from:LHR,to:PHL,departure:09/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:615.69&airProductToken=AQpgCi0IwmwSAzU2MBjvWSDBkwEo8aWeAzC%5Fpp4DOExAAFgBagJETnIIT0w0MlNWWTEKLwjCbBIEMTYyMBjBkwEg64kBKMqongMw36ueAzhMQAFYAWoCRE5yCE9MNDJTVlkxCmAKLwjCbBIEMTYyMRjriQEgwZMBKNConwMwq6yfAzhMQABYAWoCRE5yCE9MNDJTVlkxCi0IwmwSAzg1ORjBkwEg71koza6fAzCvr58DOExAAVgBagJETnIIT0w0MlNWWTESCggBEAEYASoCQjYYASIECAEQASgCKAMoBDAB) Fri, 27 Nov - Wed, 9 Dec · PHL · LHR · From £616 · Return [Select JetBlue Airways flight, departing Mon, 16 Nov from Philadelphia to London, returning Mon, 23 Nov, priced at £620 Found 1 day ago](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:16/11/2026TANYT&leg2=from:LHR,to:PHL,departure:23/11/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:619.09&airProductToken=AQpFCiAIwmwSBDE4NjAY71kgwZMBKJOrnQMwgaydAzhMQABYAQohCMJsEgQxNjIwGMGTASDriQEo6qydAzD%5Fr50DOExAAVgBCkQKIQjCbBIEMTYyMRjriQEgwZMBKND0nQMwq%5FidAzhMQABYAQofCMJsEgM4NTkYwZMBIO9ZKNf6nQMwuvudAzhMQAFYARIKCAEQARgBKgJCNhgBIgQIARABKAQwAQ) Mon, 16 Nov - Mon, 23 Nov · PHL · LHR · From £620 · Return [Select JetBlue Airways flight, departing Sun, 6 Dec from Philadelphia to London, returning Thu, 10 Dec, priced at £621 Found 9 hours ago](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:06/12/2026TANYT&leg2=from:LHR,to:PHL,departure:10/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:620.99&airProductToken=AQpgCi0IwmwSAzM2MBjvWSDBkwEopomfAzD3iZ8DOExAAFgBagJETnIIT0w0MlNWWTEKLwjCbBIEMTYyMBjBkwEg64kBKOmNnwMw%5F5CfAzhMQAFYAWoCRE5yCE9MNDJTVlkxCmAKLwjCbBIEMTYyMRjriQEgwZMBKPCznwMwy7efAzhMQABYAWoCRE5yCE9MNDJTVlkxCi0IwmwSAzg1ORjBkwEg71ko7bmfAzDPup8DOExAAVgBagJETnIIT0w0MlNWWTESCggBEAEYASoCQjYYASIECAEQASgCKAMoBDAB) Sun, 6 Dec - Thu, 10 Dec · PHL · LHR · From £621 · Return [Select JetBlue Airways flight, departing Sat, 5 Dec from Philadelphia to London, returning Wed, 9 Dec, priced at £622 Found 9 hours ago](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:05/12/2026TANYT&leg2=from:LHR,to:PHL,departure:09/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:621.99&airProductToken=AQpgCi0IwmwSAzg2MBjvWSDBkwEo4YKfAzC1g58DOExAAFgBagJETnIIT0w0TFNWWTEKLwjCbBIEMTYyMBjBkwEg64kBKOmNnwMw%5F5CfAzhMQAFYAWoCRE5yCE9MNExTVlkxCmAKLwjCbBIEMTYyMRjriQEgwZMBKNConwMwq6yfAzhMQABYAWoCRE5yCE9MNExTVlkxCi0IwmwSAzg1ORjBkwEg71koza6fAzCvr58DOExAAVgBagJETnIIT0w0TFNWWTESCggBEAEYASoCQjYYASIECAEQASgCKAMoBDAB) Sat, 5 Dec - Wed, 9 Dec · PHL · LHR · From £622 · Return [Select JetBlue Airways flight, departing Wed, 27 Jan from Philadelphia to London, returning Wed, 3 Feb, priced at £623 Found 2 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:27/01/2027TANYT&leg2=from:LHR,to:PHL,departure:03/02/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:622.58&airProductToken=AQphCi4IwmwSBDI4NjAY71kgwZMBKJbVowMw6tWjAzhMQABYAWoCRE5yCE9MMDJCVlkxCi8IwmwSBDE2MjAYwZMBIOuJASjo1qMDMP3ZowM4TEABWAFqAkROcghPTDAyQlZZMQpgCi8IwmwSBDE2MjEY64kBIMGTASjQnqQDMKyipAM4TEAAWAFqAkROcghPTDAyQlZZMQotCMJsEgM4NTkYwZMBIO9ZKISlpAMw5qWkAzhMQAFYAWoCRE5yCE9MMDJCVlkxEgoIARABGAEqAkI2GAEiBAgBEAEoAigDKAQwAQ) Wed, 27 Jan - Wed, 3 Feb · PHL · LHR · From £623 · Return [Select British Airways flight, departing Wed, 10 Feb from Philadelphia to London, returning Tue, 16 Feb, priced at £681 Found 6 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:10/02/2027TANYT&leg2=from:LHR,to:PHL,departure:16/02/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:680.06&airProductToken=AQpyCj0IwoIBEgQxNTc5GO9ZIIMNKLH1pAMwxvikAzhPQABYAWoFTk9CQUdyCE9MWDlDOUJWegoIwYIBEgQxNTc5CjEIwoIBEgM4MzkYgw0g64kBKPj9pAMwyP6kAzhPQAFYAWoFTk9CQUdyCE9MWDlDOUJWEgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) Wed, 10 Feb - Tue, 16 Feb · PHL · LHR · From £681 · Return [Select Iberia flight, departing Tue, 16 Mar from Philadelphia to London, returning Tue, 23 Mar, priced at £682 Found 6 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:16/03/2027TANYT&leg2=from:LHR,to:PHL,departure:23/03/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:681.41&airProductToken=AQpACj4IyYQBEgQzNTE4GO9ZIOuJASjH8qcDMOv1pwM4T0AAWAFqBUJBU0lDcghPTFg5QzlCVnoKCMKCARIEMzUxOAp%5FCj4IyYQBEgQzNjQzGOuJASCMGCjiuagDMPi6qAM4T0AAWAFqBUJBU0lDcghPTFg5QzlCVnoKCMKCARIEMzY0Mwo9CMmEARIENDY3NRiMGCDvWSj%5Fu6gDMILAqAM4T0ABWAFqBUJBU0lDcghPTFg5QzlCVnoKCMGCARIENDY3NRIKCAEQARgBKgJJQhgBIgQIARABKAIoAygEMA0) Tue, 16 Mar - Tue, 23 Mar · PHL · LHR · From £682 · Return [Select Aer Lingus flight, departing Mon, 1 Mar from Philadelphia to London, returning Tue, 9 Mar, priced at £689 Found 2 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:01/03/2027TANYT&leg2=from:LHR,to:PHL,departure:09/03/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:688.99&airProductToken=AQpjCi8IxZIBEgMxMTQY71kggw0osMmmAzC7zKYDOE9AAFgBagRTQVZScghPTFg5QzlCVgowCMWSARIDMTUyGIMNIOuJASiLzaYDMOXNpgM4R0ABWAFqBFNBVlJyCE9MWDlDOUJWCmMKMAjFkgESAzE1MxjriQEggw0o8pynAzDHnacDOEdAAFgBagRTQVZScghPTFg5QzlCVgovCMWSARIDMTE1GIMNIO9ZKOeepwMw1qKnAzhPQAFYAWoEU0FWUnIIT0xYOUM5QlYSCggBEAEYASoCRUkYASIECAEQASgCKAMoBDAN) Mon, 1 Mar - Tue, 9 Mar · PHL · LHR · From £689 · Return [Select American Airlines flight, departing Mon, 1 Mar from Philadelphia to London, returning Tue, 9 Mar, priced at £693 Found 2 days ago](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LHR,departure:01/03/2027TANYT&leg2=from:LHR,to:PHL,departure:09/03/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:692.01&airProductToken=AQpyCjAIwYIBEgM3MjIY71kggw0ogsumAzD-zaYDOEJAAFgBagVCQVNJQ3IIT0xYOUM5QlYKPgjBggESBDY3NjUYgw0g64kBKKXQpgMw%5F9CmAzhPQAFYAWoFQkFTSUNyCE9MWDlDOUJWegoIwoIBEgQ2NzY1CnIKPgjBggESBDY4MDIY64kBIIwYKKKcpwMwuJ2nAzhPQABYAWoFQkFTSUNyCE9MWDlDOUJWegoIwoIBEgQ2ODAyCjAIwYIBEgM3NDEYjBgg71kov56nAzDCoqcDOEJAAVgBagVCQVNJQ3IIT0xYOUM5QlYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) Mon, 1 Mar - Tue, 9 Mar · PHL · LHR · From £693 · Return ## Alternative airports near London Prices were available within the past 7 days. Prices and availability are subject to change. [Select flight to Gatwick LGW. Average driving time to city centre is 51 minutes. Flights from £1,738](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LGW,departure:29/11/2026TANYT&leg2=from:LGW,to:PHL,departure:02/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 51 min [Select flight to Stansted STN. Average driving time to city centre is 51 minutes.](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:STN,departure:29/11/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 51 min · Search flights [Select flight to Luton LTN. Average driving time to city centre is 45 minutes.](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LTN,departure:29/11/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 45 min · Search flights [Select flight to London City LCY. Closest option available. Average driving time to city centre is 21 minutes. Flights from £1,851](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:LCY,departure:29/11/2026TANYT&leg2=from:LCY,to:PHL,departure:03/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 21 min [Select flight to Southampton SOU. Average driving time to city centre is 1 hour 29 minutes.](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:SOU,departure:29/11/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 1 h 29 min · Search flights [Select flight to Southend Municipal SEN. Average driving time to city centre is 59 minutes.](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:SEN,departure:29/11/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 59 min · Search flights [Select flight to Farnborough FAB. Average driving time to city centre is 55 minutes.](https://www.expedia.co.uk/Flights-Search?leg1=from:PHL,to:FAB,departure:29/11/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 55 min · Search flights ## Find the cheapest month to fly from Philadelphia (PHL) to London (LHR) ### February is typically the cheapest month to fly From £598 - £700 per traveller. View flights in February Insights are based on prices from searches for economy trips of 10 days or less on our sites in the last 12 months. Insights are informative only and current prices may differ. ## Book with confidence ### Compare flights from Philadelphia to London easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Philadelphia to London. Operating between them 2 flights per day, 7 airlines cover the route. And British Airways, American Airlines fly direct, getting you to Heathrow in just 7hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Philadelphia Intl. to Heathrow. To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. #### Grab a great deal on your flight from Philadelphia Intl. (PHL) to Heathrow (LHR) The easiest way to view the best deals on flights from Philadelphia to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Philadelphia Intl. to Heathrow start at just £614 and range up to £693\. To find an even better deal, try - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Philadelphia and London - booking your flight during December, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper #### Why you should book your Philadelphia to London flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Philadelphia Intl. to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you. Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight. ## Frequently Asked Questions ### How much does a flight from Philadelphia, PA (PHL) to London (LHR) cost? You can find one-way and return flights from Philadelphia, PA (PHL) to London (LHR) with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when PHL to LHR ticket fares go up or down. ### What is the cheapest month to fly from Philadelphia, PA (PHL) to London (LHR)? The cheapest months to fly from Philadelphia, PA (PHL) to London (LHR) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route. ### Which airlines fly direct from Philadelphia, PA (PHL) to London (LHR)? Enter PHL to LHR and your travel dates, then apply the 'Nonstop' filter to see only direct flights. ### What is the cheapest airline that flies from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow)? Republic Airlines is one of the cheapest airlines offering connecting return flights from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow), with prices starting from around £612\. American Airlines is one of the cheapest airlines offering nonstop return flights from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow), with prices starting from around £744 for flights that can be booked for departure within the next year. These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget. ### How do I find cheap flights from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow)? To find a cheap flight from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up [Price Tracking](https://www.expedia.co.uk/why/price-tracking) and receive alerts when fares go up or down. ### What is the best airline to fly with from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow)? The best airline to fly with from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow) will differ from traveler to traveler. If you like to fly early, British Airways offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. American Airlines offers the most daily flights from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access. ### What is the best time to fly from Philadelphia, PA (PHL) to London (LHR)? The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience. ### How many flights per day from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow)? You'll find approximately 3 nonstop flights per day from Philadelphia International Airport (PHL) to London Heathrow (LHR). For even more choices, look at flights that include layovers, as there are around 145 connecting flights per day. Some common connection points include Logan International Airport (BOS), Pearson International Airport (YYZ), and O'Hare International Airport (ORD). ### What is the earliest flight from Philadelphia, PA (PHL) to London (LHR)? Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from Philadelphia, PA (PHL) to London (LHR). To compare more early flights, use the "Early Morning" and "Morning" filters in your search. ### What day of the week has the most flights from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow)? You'll typically find the most flights from Philadelphia International Airport (PHL) to London Heathrow (LHR) on a Thursday, with around 94 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, Delta, and United. Thursday sees notably more flight options compared to other days of the week, making it a good day to consider if you're looking for more choices. ### What are the most popular departure times for flights from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow)? The most popular departure times for flights from Philadelphia Intl. (PHL) to Heathrow (LHR) are in the evening, from 6pm to 9pm. Many major carriers, including American Airlines, British Airways and Aer Lingus, offer flights during this window. Many travellers prefer these times because you can make the most of your day in Philadelphia before your evening flight, and you'll arrive in London in the morning, ready to start your day. ### How long does it take to fly from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow)? Flying nonstop from PHL to LHR takes around 7 hours, with the route covering approximately 5,691 kilometers. Flights with a layover typically take 5 hours longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic. ### Can you fly business or first class from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow)? You can fly business class or first class between PHL and LHR. Airlines that offer business class service on this route include: - Aer Lingus - British Airways - Republic Airlines - Air Canada - JetBlue Airways - Discover Airlines - SAS - United - Delta - American Airlines First class cabins are available on United and American Airlines. ### How do I earn miles on a Philadelphia, PA (PHL) to London (LHR) flight with Expedia? It's easy to earn miles on a Philadelphia, PA (PHL) to London (LHR) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of [One Key™](https://www.expedia.co.uk/welcome-one-key), you can also earn OneKeyCash™\* on top of your airline miles when you book with Expedia. \*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands. ### Is it cheaper to buy a plane ticket from Philadelphia, PA (PHL) to London (LHR) at the last minute? Typically, booking a last minute flight from Philadelphia, PA (PHL) to London (LHR) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare. ### Is it cheaper to book a Philadelphia, PA (PHL) to London (LHR) flight and hotel package? Securing a Philadelphia, PA (PHL) to London (LHR) [flight and hotel package](https://www.expedia.co.uk/london.d178279.destination-travel-guides) is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars. ### Can I cancel or change the date of my flight from Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow)? If you booked your Philadelphia, PA (PHL-Philadelphia Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in [your itinerary](https://www.expedia.co.uk/trips) or confirmation email. Or, head to our [Customer Service portal](https://www.expedia.co.uk/helpcenter/) if you'd like more information. ## Travel information | Origin airport | Philadelphia International Airport | | ------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Destination airport | Heathrow Airport | | Distance | 3,535 miles away | | Airlines serving | Aer Lingus, Finnair, British Airways, Iberia, Air Canada, JetBlue Airways, TAP Portugal, American Airlines, Delta, Virgin Atlantic, United, Brussels Airlines, KLM, Lufthansa, SAS, Alaska Airlines, Air France, Swiss International Air Lines, Icelandair, Aeromexico | | Popular airline | Aer Lingus | | Return price | £614 | | Average flight time | 7 hours 5 mins | ## Explore a world of travel with Expedia - [Flights](?equalTargetTab=tab-0) - 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