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£243 Cheap Flights from Harrisburg (MDT) to London (LHR)

View £243 flight on Tue, 27 Oct 2026Opens in a new window

Popular airlines from Harrisburg Intl. Airport (MDT) to Heathrow Airport (LHR)

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Cheap Flights from Harrisburg (MDT) to London (LHR)

Prices were available within the past 7 days and start at £243 for one-way flights and £655 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air France
Sun, 25 Oct - Tue, 3 Nov
MDT
Harrisburg
LHR
London
£655 Return, found 6 days ago
£655
Return
found 6 days ago
Select Air France flight, departing Sun, 25 Oct from Harrisburg to London, returning Tue, 3 Nov, priced at £655 found 6 days ago
Air France
Sun, 25 Oct - Tue, 3 Nov
MDT
Harrisburg
LHR
London
£660 Return, found 6 days ago
£660
Return
found 6 days ago
Select Air France flight, departing Sun, 25 Oct from Harrisburg to London, returning Tue, 3 Nov, priced at £660 found 6 days ago
British Airways
Sun, 25 Oct - Tue, 3 Nov
MDT
Harrisburg
LHR
London
£664 Return, found 6 days ago
£664
Return
found 6 days ago
Select British Airways flight, departing Sun, 25 Oct from Harrisburg to London, returning Tue, 3 Nov, priced at £664 found 6 days ago
KLM
Wed, 11 Nov - Sun, 15 Nov
MDT
Harrisburg
LHR
London
£667 Return, found 7 hours ago
£667
Return
found 7 hours ago
Select KLM flight, departing Wed, 11 Nov from Harrisburg to London, returning Sun, 15 Nov, priced at £667 found 7 hours ago
Air France
Sun, 25 Oct - Tue, 3 Nov
MDT
Harrisburg
LHR
London
£672 Return, found 6 days ago
£672
Return
found 6 days ago
Select Air France flight, departing Sun, 25 Oct from Harrisburg to London, returning Tue, 3 Nov, priced at £672 found 6 days ago
Air France
Wed, 11 Nov - Sun, 15 Nov
MDT
Harrisburg
LHR
London
£673 Return, found 7 hours ago
£673
Return
found 7 hours ago
Select Air France flight, departing Wed, 11 Nov from Harrisburg to London, returning Sun, 15 Nov, priced at £673 found 7 hours ago
Air France
Sun, 25 Oct - Tue, 3 Nov
MDT
Harrisburg
LHR
London
£677 Return, found 6 days ago
£677
Return
found 6 days ago
Select Air France flight, departing Sun, 25 Oct from Harrisburg to London, returning Tue, 3 Nov, priced at £677 found 6 days ago
British Airways
Wed, 11 Nov - Sun, 15 Nov
MDT
Harrisburg
LHR
London
£684 Return, found 7 hours ago
£684
Return
found 7 hours ago
Select British Airways flight, departing Wed, 11 Nov from Harrisburg to London, returning Sun, 15 Nov, priced at £684 found 7 hours ago
Lufthansa
Fri, 21 Aug - Fri, 28 Aug
MDT
Harrisburg
LHR
London
£692 Return, found 2 days ago
£692
Return
found 2 days ago
Select Lufthansa flight, departing Fri, 21 Aug from Harrisburg to London, returning Fri, 28 Aug, priced at £692 found 2 days ago
American Airlines
Wed, 15 Jul - Wed, 22 Jul
MDT
Harrisburg
LHR
London
£810 Return, found 13 hours ago
£810
Return
found 13 hours ago
Select American Airlines flight, departing Wed, 15 Jul from Harrisburg to London, returning Wed, 22 Jul, priced at £810 found 13 hours ago

Frequently asked questions

How much does a flight from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow) cost?
You can find one-way and return flights from MDT to 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 MDT to LHR ticket fares go up or down.
What is the cheapest month to fly from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
The cheapest months to fly from MDT to 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 Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
Enter MDT to LHR and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
American Eagle is one of the cheapest airlines offering connecting return flights from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow), with tickets starting from around £547 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 Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Harrisburg, PA (MDT-Harrisburg 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 and receive alerts when fares go up or down.
What is the best time to fly from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
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 Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
There are approximately 37 connecting flights per day from Harrisburg International Airport (MDT) to London Heathrow (LHR). Some common connection points include O'Hare International Airport (ORD), Charlotte-Douglas International Airport (CLT), and Washington Dulles International Airport (IAD).
What is the earliest flight from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
The earliest flight from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow) typically departs around 5:00 AM. This service is operated by American Airlines. This is a seasonal service, active only in January. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow) on a Saturday, with around 34 flights available. This gives you a good selection of options for your journey. Major airlines on this route include American Airlines, United, and Delta. Flight schedules are fairly consistent throughout the week, with Saturday offering notably more flight options compared to other days.
What are the most popular departure times for flights from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Harrisburg Intl. (MDT) to Heathrow (LHR) are in the afternoon, from 12pm to 3pm. Many major carriers, including American Airlines, United and Delta, offer flights during this window. Many travellers prefer this because it allows for a relaxed morning before heading to the airport and an evening arrival at your destination.
How long does it take to fly from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
There are no nonstop flights from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow). If you're flying from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow), which is a distance of about 5,768 kilometers, you'll typically find flights with one stop taking around 11 hours 30 minutes. Flights with two or more stops usually take a bit longer, averaging about 14 hours 48 minutes. Keep in mind that these are average travel times, and your actual journey can vary depending on the specific route, layover durations, and factors like wind patterns.
Can you fly business or first class from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
Yes, you can fly business class or first class between MDT and LHR. You can fly business class with KLM and Delta.First class cabins are available on American Airlines.
How do I earn miles on a Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow) 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™, 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.
What airports do you fly into for London (LHR) from Harrisburg, PA (MDT)?
If you're planning to travel to London from Harrisburg Intl. (MDT), you can fly directly into Heathrow (LHR) which offers international flights and connections. Some flights may connect through major hubs like Philadelphia Intl. (PHL), Charlotte-Douglas Intl. (CLT), or Washington Dulles Intl. (IAD) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow) 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 Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow) flight and hotel package 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 Harrisburg, PA (MDT-Harrisburg Intl.) to London (LHR-Heathrow)?
If you booked your Harrisburg, PA (MDT-Harrisburg 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 or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Harrisburg Intl.
Destination airport
Heathrow
Airlines serving
Air France, British Airways, KLM, Lufthansa
Return price
£655
Distance
5733 km

Book with confidence

Compare flights from Harrisburg to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Harrisburg to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Harrisburg 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 Harrisburg Intl. (MDT) to Heathrow (LHR)

The easiest way to view the best deals on flights from Harrisburg 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 Harrisburg Intl. to Heathrow start at just £655 and range up to £810.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Harrisburg and London
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Harrisburg to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Harrisburg 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.  

Compare flights from Harrisburg to London easily and book with confidence

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*Available to Expedia members.