Cheap Flights from Seattle (BFI) to Lexington (LEX)

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Find available prices by choosing your travel dates.
Flights from Seattle (BFI) to Lexington (LEX)
Origin airport
Boeing Field
Destination airport
Blue Grass
Distance
1998 mi

Seattle to Lexington Flights

The cheapest times to fly from Seattle to Lexington

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 Lexington are during the month of . You can find some of the cheapest flights from Seattle to Lexington with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Seattle to Lexington

Sunday is one of the best days to book for cheap flights from Seattle to Lexington: 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 Lexington

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 Lexington 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 Lexington 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 Lexington 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.

Frequently asked questions

Is it cheaper to buy a plane ticket from King County International Airport to LEX last minute?
Being a spontaneous soul is a rewarding way to see the world, but it’s not always the best way to nab a cheap airfare. It’s better to book your BFI to Blue Grass Airport trip well ahead of time instead of leaving it to the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. We recommend saving that spontaneity for when you reach Blue Grass Airport!
What airports do you fly into for Lexington from Seattle?
Blue Grass Airport (LEX), Capital City Airport (FFT) and Bardstown, KY (BRY-Samuels Field) are your choices when traveling from Seattle to Lexington. Roughly 6 mi west of central Lexington, Blue Grass Airport (LEX) is the city’s principal entry point. Consider factors such as flight departure and arrival times and the distance to your hotel before choosing an airport. University of Kentucky and Keeneland Racing Course are a couple of leading attractions to check out when you arrive.
Can I change the date of my flight from Boeing Field to LEX?
Life can throw a spanner in your plans, so Expedia is here to help make things easier. First, access your King County International Airport to Blue Grass Airport (LEX) itinerary through the Expedia Trips portal and check the fare rules and conditions regarding changes. If you purchased your ticket in the last 24 hours, some airlines will allow you to cancel for free and organize new flights. If you booked more than 24 hours ago, contact us through our Customer Service portal to see how we can assist.

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