Title: Cheap Flights from Portland (PDX) to Louisville (SDF) - Expedia.ca ![The Louisville, Kentucky skyline with pedestrian walkway in front](https://images.trvl-media.com/place/603002/bb7aa867-4a7a-49ff-b758-10a472246889.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/603002/bb7aa867-4a7a-49ff-b758-10a472246889.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Portland (PDX) to Louisville (SDF) - [Roundtrip](?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 Portland International Airport (PDX) to Louisville International Airport (SDF) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:pdx,to:sdf,departure:09/11/2025TANYT&leg2=from:sdf,to:pdx,departure:16/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:pdx,to:sdf,departure:09/11/2025TANYT&leg2=from:sdf,to:pdx,departure:16/11/2025TANYT&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.ca/Flights-Search?leg1=from:pdx,to:sdf,departure:09/11/2025TANYT&leg2=from:sdf,to:pdx,departure:16/11/2025TANYT&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.ca/Flights-Search?leg1=from:pdx,to:sdf,departure:09/11/2025TANYT&leg2=from:sdf,to:pdx,departure:16/11/2025TANYT&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.ca/Flights-Search?leg1=from:pdx,to:sdf,departure:09/11/2025TANYT&leg2=from:sdf,to:pdx,departure:16/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) ![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 30% 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.ca/login) ## Find the cheapest month to fly from Portland (PDX) to Louisville (SDF) ### August is typically the cheapest month to fly From CA $276 - CA $997 per traveller. Flight from Portland to Louisville (PDX - SDF) route information | Origin airport | Portland Intl. | | --- | --- | | Destination airport | Louisville Intl. | | Distance | 3110 km | ## Portland to Louisville Flights **The easy way to book your flights from Portland to Louisville**  With Expedia, it’s simple to find and book flights to Louisville from Portland whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Louisville Intl., too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Portland to Louisville today, tomorrow, or this week.   **Save dollars with cheap flights from Portland Intl., PDX to Louisville Intl., SDF**  Sort your search results by price to find great deals on your flight from Portland to Louisville—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Louisville from Portland currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Louisville   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Louisville from Portland**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Louisville with Expedia today. ## Frequently asked questions ### How much is a flight from PDX Airport to Louisville Muhammad Ali Intl. Airport? > The lowest price advertised for a round-trip journey between PDX Airport and Louisville Intl. Airport (SDF) is . But you better act quick. This figure 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 PDX to SDF? > Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the instructions on our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from Portland Intl. Airport (PDX) to Louisville Muhammad Ali Intl. Airport that have flexible change policies? > Use our "No change fees" filter to find flexible travel options for your flight from PDX to Louisville Muhammad Ali Intl. Airport. This allows you to secure a low rate ahead of time and still have the freedom to make changes without any additional fees. Fare adjustments may apply if your new flight is more expensive. ### How many hours is the flight from PDX Airport to Louisville Muhammad Ali Intl. Airport? > It takes roughly 6 hours and 3 minutes to fly from PDX Airport to Louisville Intl. Airport (SDF). But with some movies and an interesting book, the time will pass by quicker. ### How far is the flight from PDX Airport to Louisville Muhammad Ali Intl. Airport? > It's around 3,100 kilometres from PDX Airport to SDF, so expect to be up in the air for a while. Keep yourself occupied by packing things like your e-reader or a good old-fashioned book. ### Which airlines fly direct from Portland Airport to Louisville Intl. Airport (SDF)? > Flying directly between Portland Airport and Louisville Muhammad Ali Intl. Airport isn't possible at present. However, you'll still be able to book a flight to Louisville with at least one stop. ### Are PDX to Louisville Muhammad Ali Intl. Airport flight tickets cheaper when they're purchased at the last minute? > Flight tickets from Portland Intl. Airport (PDX) to Louisville Intl. Airport (SDF) are available up to a year prior to departure on Expedia. And although you may occasionally score a great last-minute deal, it's never something you can count on. Also, booking your flights ahead of time means you'll have more options — and you can avoid being wedged in the dreaded middle seat! 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