Title: Cheap Flights from Louisville to Philadelphia (SDF to PHL) - Expedia.co.uk ![Street view of downtown Philadelphia in PA, USA](https://images.trvl-media.com/place/178297/8334056d-4758-4753-ae85-5adcad811308.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178297/8334056d-4758-4753-ae85-5adcad811308.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Louisville (SDF) to Philadelphia (PHL) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Louisville International Airport (SDF) to Philadelphia International Airport (PHL) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sdf,to:phl,departure:26/10/2025TANYT&leg2=from:phl,to:sdf,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:sdf,to:phl,departure:26/10/2025TANYT&leg2=from:phl,to:sdf,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:sdf,to:phl,departure:26/10/2025TANYT&leg2=from:phl,to:sdf,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sdf,to:phl,departure:26/10/2025TANYT&leg2=from:phl,to:sdf,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![Spirit Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_NK.svg) Spirit Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:sdf,to:phl,departure:26/10/2025TANYT&leg2=from:phl,to:sdf,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"NK"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Find the cheapest month to fly from Louisville (SDF) to Philadelphia (PHL) ### April is typically the cheapest month to fly From £120 - £377 per traveller. 0 Flight from Louisville to Philadelphia route information | Origin airport | Louisville Intl. | | --- | --- | | Destination airport | Philadelphia Intl. | | Distance | 920 km | ## Compare flights from Louisville to Philadelphia easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Louisville to Philadelphia. Operating between them 10 flights per day, airlines cover the route. And American Airlines, Qatar Airways, Alaska Airlines, Aer Lingus fly direct, getting you to Philadelphia Intl. in just 2hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Louisville Intl. to Philadelphia Intl..   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 Louisville Intl. (SDF) to Philadelphia Intl. (PHL) The easiest way to view the best deals on flights from Louisville to Philadelphia 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 Louisville Intl. to Philadelphia Intl. start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Louisville and Philadelphia - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Louisville to Philadelphia flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Louisville Intl. to Philadelphia Intl. 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 is a flight from Louisville Intl. Airport (SDF) to Philadelphia Airport? > The lowest price advertised for a round-trip journey from SDF to PHL is . But you better move fast. This price is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Louisville Intl. Airport (SDF) to Philadelphia Airport? > The majority of flights can be cancelled online, but each air carrier has its own set of terms and conditions. If you do have to cancel your flight, visit our [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033) and follow the instructions. ### How do I find cheap flights from SDF to Philadelphia Intl. Airport (PHL) that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SDF to Philadelphia Intl. Airport (PHL) flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Louisville Muhammad Ali Intl. Airport to Philadelphia Intl. Airport (PHL)? > The distance from Louisville Muhammad Ali Intl. Airport (SDF) to PHL (PHL) is just 930 kilometres. You'll be stepping off the plane and collecting your bags from the carousel in no time. ### Which airlines fly direct from SDF to Philadelphia Airport? > If you're looking to fly directly from SDF to Philadelphia Airport, American Airlines (AA) is a popular option. It operates 52 flights every month between Louisville and Philadelphia. ### Are SDF to Philadelphia Intl. Airport (PHL) flight tickets cheaper when they're purchased at the last minute? > Booking your trip from Louisville Intl. Airport (SDF) to PHL last minute could be your ticket to a fantastic deal. However, it could end up costing you a whole lot more! If you'd rather avoid the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia. ## Explore a world of travel with Expedia - Accommodation - Flights - Packages - Cars - Holiday Homes ### Accommodation - [5 Star Hotels in Lester](https://www.expedia.co.uk/5Star-Lester-Hotels.s50-0-d8315.Travel-Guide-Filter-Hotels) - [Beach Resorts & in Eastwick](https://www.expedia.co.uk/Eastwick-Philadelphia-Hotels-Beach-Hotels.0-n6320826-0-tBeachHotels.Travel-Guide-Filter-Hotels) - [Eastwick Hotels](https://www.expedia.co.uk/Eastwick-Philadelphia-Hotels.0-n6320826-0.Travel-Guide-Filter-Hotels) - [Folcroft Hotels](https://www.expedia.co.uk/Folcroft-Hotels.d6215982.Travel-Guide-Hotels) - [Cheap Hotels in Lester](https://www.expedia.co.uk/Lester-Hotels-Budget-Hotels.0-0-d8315-tBudgetHotels.Travel-Guide-Filter-Hotels) - [Hilton Hotels in Lester](https://www.expedia.co.uk/Lester-Hotels-Hilton-Hotels.0-0-d8315--bHiltonHotels.Travel-Guide-Filter-Hotels) - [Lester Hotels](https://www.expedia.co.uk/Lester-Hotels.d8315.Travel-Guide-Hotels) - 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