$110 Cheap Flights from Washington (IAD) to Lexington (LEX)

View $110 flight on Tue, May 20, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX)

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Find available prices by choosing your travel dates.

Cheap Flights from Washington to Lexington (IAD-LEX)

Prices were available within the past 7 days and start at $110 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, May 20 - Sat, May 24
IAD
Washington
LEX
Lexington
$269 Roundtrip, found 18 hours ago
$269
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Tue, May 20 from Washington to Lexington, returning Sat, May 24, priced at $269 found 18 hours ago
American Airlines
Wed, May 7 - Wed, May 14
IAD
Washington
LEX
Lexington
$304 Roundtrip, found 14 hours ago
$304
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Wed, May 7 from Washington to Lexington, returning Wed, May 14, priced at $304 found 14 hours ago
Delta
Wed, Oct 8 - Sat, Oct 11
IAD
Washington
LEX
Lexington
$319 Roundtrip, found 8 hours ago
$319
Roundtrip
found 8 hours ago
Select Delta flight, departing Wed, Oct 8 from Washington to Lexington, returning Sat, Oct 11, priced at $319 found 8 hours ago
American Airlines
Sat, May 10 - Mon, May 12
IAD
Washington
LEX
Lexington
$329 Roundtrip, found 22 hours ago
$329
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Sat, May 10 from Washington to Lexington, returning Mon, May 12, priced at $329 found 22 hours ago
American Airlines
Tue, Nov 18 - Sat, Nov 22
IAD
Washington
LEX
Lexington
$339 Roundtrip, found 5 days ago
$339
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Nov 18 from Washington to Lexington, returning Sat, Nov 22, priced at $339 found 5 days ago
Delta
Wed, Oct 8 - Sat, Oct 11
IAD
Washington
LEX
Lexington
$349 Roundtrip, found 8 hours ago
$349
Roundtrip
found 8 hours ago
Select Delta flight, departing Wed, Oct 8 from Washington to Lexington, returning Sat, Oct 11, priced at $349 found 8 hours ago
American Airlines
Thu, Jul 17 - Sun, Jul 20
IAD
Washington
LEX
Lexington
$368 Roundtrip, found 10 hours ago
$368
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Thu, Jul 17 from Washington to Lexington, returning Sun, Jul 20, priced at $368 found 10 hours ago
American Airlines
Tue, Nov 18 - Sat, Nov 22
IAD
Washington
LEX
Lexington
$369 Roundtrip, found 5 days ago
$369
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Nov 18 from Washington to Lexington, returning Sat, Nov 22, priced at $369 found 5 days ago
Delta
Wed, Jul 16 - Wed, Jul 30
IAD
Washington
LEX
Lexington
$372 Roundtrip, found 4 days ago
$372
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jul 16 from Washington to Lexington, returning Wed, Jul 30, priced at $372 found 4 days ago
United
Thu, May 29 - Fri, May 30
IAD
Washington
LEX
Lexington
$417 Roundtrip, found 7 hours ago
$417
Roundtrip
found 7 hours ago
Select United flight, departing Thu, May 29 from Washington to Lexington, returning Fri, May 30, priced at $417 found 7 hours ago
Flights from Washington (IAD) to Lexington (LEX)
Origin airport
Washington Dulles Intl.
Destination airport
Blue Grass
Airlines serving
American Airlines, Delta, United
Roundtrip price
$268
Distance
391 mi

Washington to Lexington Flights

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

The best time to book a flight from Washington to Lexington

Sunday is one of the best days to book for cheap flights from Washington 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 Washington 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 Washington to Lexington in 2025. You can also book with separate airlines for your outbound and return journeys, from $110 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 Washington 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 Washington 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

How much does a flight from Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX) cost?
Discover the latest flight deals from IAD to LEX by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAD to LEX?
The cheapest flights from IAD to LEX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX)?
There are no direct flights from Washington, DC (IAD-Washington Dulles Intl.) to Blue Grass Airport (LEX). However, you can find other airports with nonstop flights. Begin your journey at Ronald Reagan Washington National Airport (DCA) and fly straight to Lexington without any detours.
What is the cheapest airline that flies from IAD to LEX?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from IAD to LEX. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX)?
There aren’t any daily direct flights available from Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you’ll be soaring above the clouds before you know it.
What day of the week has the most flights from IAD to LEX?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on a number of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX)?
To avoid possible delays on the Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX) route, travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX) last-minute?
Holding off until just before your departure to book a ticket from IAD to LEX generally means paying more. While it’s possible to find some last-minute offers, they’re not always guaranteed. Keep your travel schedule open to maximize your chances of scoring a bargain.
Is it cheaper to book an IAD to LEX flight and hotel package?
Opting for an IAD to LEX flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our impressive range of hotels and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX)?
If you booked your IAD to LEX flight in the last 24 hours, you may be able to cancel or modify it at no cost. 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, go to our Customer Service portal if you’d like more information.

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*Available to One Key members.