Cheap Flights from Seattle (BFI) to Louisville (SDF)

Popular airlines from Seattle, WA (BFI-Boeing Field) to Louisville Intl. Airport (SDF)

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Frequently asked questions

How much does a flight from Boeing Field Airport (BFI) to Louisville Intl. Airport (SDF) cost?
Grab a cheap one-way flight or cheap return flight from Boeing Field Airport (BFI) to Louisville Intl. Airport (SDF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Boeing Field Airport (BFI) to Louisville Intl. Airport (SDF)?
Traveling in is a good way to save, as it's the cheapest month for flights between BFI and SDF. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Boeing Field Airport (BFI) to Louisville Intl. Airport (SDF)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BFI to SDF flight.
How many flights per day from Boeing Field Airport (BFI) to Louisville Intl. Airport (SDF)?
You'll have to hop on a flight with a layover if you're traveling from Boeing Field Airport (BFI) to Louisville Intl. Airport (SDF). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from BFI to SDF?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boeing Field Airport (BFI) to Louisville Intl. Airport (SDF)?
To reach Louisville Intl. Airport (SDF) on time, choose a flight that leaves Boeing Field Airport (BFI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Boeing Field Airport (BFI) to Louisville Intl. Airport (SDF) last-minute?
Booking your plane ticket from BFI to SDF just before your getaway is usually more expensive. But if you're flexible with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a BFI to SDF flight and hotel package?
Compared with arranging hotels and flights separately, booking a BFI to SDF flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place will take the hassle out of planning your trip. Just secure your flights and choose from our extensive range of stays, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Boeing Field Airport (BFI) to Louisville Intl. Airport (SDF)?
If you reserved your BFI to SDF flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

Travel information

Origin airport
Boeing Field
Destination airport
Louisville Intl.
Distance
1940 mi

Book with confidence

Seattle to Louisville Flights

The cheapest times to fly from Seattle to Louisville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Louisville are during the month of . You can find some of the cheapest flights from Seattle to Louisville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Louisville

Sunday is one of the best days to book for cheap flights from Seattle to Louisville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Louisville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Louisville in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Louisville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Louisville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Louisville Flights

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*Available to One Key members.