IAD - LEX

$179 Find Cheap Flights from Washington Dulles Airport to Lexington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Lexington departing on 4/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Lexington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Lexington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Lexington, as well as popular online travel agencies
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Cheap Flight Deals from Dulles Intl to Lexington (IAD-LEX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Lexington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Dulles Intl to Lexington

KAYAK's recommended round-trip deals from the most popular airlines that fly from Dulles Intl to Lexington.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
6:00 am - 11:18 amIAD-LEX
5h 18m1 stop
7:59 pm - 12:28 amLEX-IAD
4h 29m1 stop
$319Delta
Find Deal
Wed, May 7 - Thu, May 15
10:10 am - 2:59 pmIAD-LEX
4h 49m1 stop
7:45 pm - 12:10 amLEX-IAD
4h 25m1 stop
$339Delta
Find Deal
Fri, Jul 4 - Mon, Jul 7
5:41 pm - 11:56 pmIAD-LEX
6h 15m1 stop
8:15 pm - 11:58 pmLEX-IAD
3h 43m1 stop
$349American Airlines
Find Deal
Wed, Jul 2 - Sun, Jul 6
8:25 am - 4:17 pmIAD-LEX
31h 52m3 stops
2:28 pm - 2:23 pmLEX-IAD
23h 55m2 stops
Wed, Apr 23 - Sun, Jun 1
5:41 pm - 9:47 pmIAD-LEX
4h 06m1 stop
8:15 pm - 11:58 pmLEX-IAD
3h 43m1 stop
$379American Airlines
Find Deal
Tue, Jul 1 - Mon, Jul 7
8:25 am - 4:17 pmIAD-LEX
31h 52m3 stops
10:00 am - 11:20 amLEX-IAD
25h 20m3 stops
Wed, Apr 23 - Sun, Jun 1
8:21 am - 8:30 pmIAD-LEX
12h 09m2 stops
7:03 am - 2:06 pmLEX-IAD
7h 03m1 stop
$414United Airlines
Find Deal
Sat, May 3 - Thu, May 8
8:30 am - 8:21 pmIAD-LEX
11h 51m2 stops
5:44 pm - 12:30 amLEX-IAD
6h 46m1 stop
$428United Airlines
Find Deal
Wed, Jul 2 - Mon, Jul 7
11:52 am - 2:10 pmIAD-LEX
26h 18m2 stops
8:39 pm - 2:23 pmLEX-IAD
17h 44m2 stops
$456Allegiant Air
Find Deal
Thu, Jun 19 - Sun, Jun 22
11:52 am - 2:10 pmIAD-LEX
26h 18m2 stops
9:27 am - 3:13 pmLEX-IAD
5h 46m1 stop
$462Allegiant Air
Find Deal
Thu, Jun 19 - Sun, Jun 22

KAYAK's insights & trends for Dulles Intl to Lexington flights

Get data-powered insights and trends into flights from Dulles Intl to Lexington to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Lexington?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Lexington clicked on KAYAK for each day over the last 12 months.
When flying from Washington Dulles Airport to Lexington, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

Good to know

Low season

March

High season

July

Cheapest flight

$179
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Washington Dulles Airport to Lexington

When to book flights from Dulles Intl to Lexington

Are your dates flexible? Find out the best times to travel from Dulles Intl to Lexington based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Lexington flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Lexington?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Lexington was $179 for a one-way ticket and $319 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Lexington?

    A passport is not required to fly from Washington Dulles Airport to Lexington.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Lexington?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Lexington?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Washington Dulles Airport and Lexington, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Lexington, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Lexington are Delta and American Airlines. With an average price for the route of $346 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $455 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Lexington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Lexington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Lexington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Lexington from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Lexington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Lexington with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and LEX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Lexington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Lexington from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Dulles Intl to Lexington

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Lexington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Lexington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7899 reviews
8.2Boarding
8.0Comfort
7.9Entertainment
8.5Crew
7.3Food
Airline reviews

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

10.0 ExcellentSunderesh, Mar 2025AUS - BOS
Read more Delta reviews

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The WiFi didn't seem as fast as it normally is

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Delta is a premier airline so my expectations are most always met.

The trip was very smooth and they provided great customer service

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

The flight was initially delayed, then cancelled. American Airlines says the cancellation was weather related, though the actual weather was not bad in both Washington and Providence and between. There were very few cancellations that day. In fact, AA2120 from Washington, DC to Boston flew with a minor delay at about the same time. So, the weather somehow affected only this particular flight AA5230. The next available flight was the following morning. The American Airlines refused to reimburse accommodation (hotel at DCA)

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

Good experience but the snacks are not gluten free, so I cannot eat them.

Standard. No different than a discount carrier on a short trip.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

Everything you need to know for your flight from Dulles Intl to Lexington

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