IAD - LEX

$119 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 1/10. 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
1 adult, Economy, 0 bags

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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Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Lexington

Wed, Feb 4 - Sat, Feb 7
Delta Logo
12:32 pm - 4:55 pmIAD-LEX
4h 23m1 stop
Delta Logo
5:00 pm - 10:53 pmLEX-IAD
5h 53m1 stop
$199Delta
Find Deal
Tue, Nov 18 - Mon, Nov 24
American Airlines Logo
11:25 am - 3:27 pmIAD-LEX
4h 02m1 stop
American Airlines Logo
11:21 am - 4:49 pmLEX-IAD
5h 28m1 stop
$219American Airlines
Find Deal
Thu, Feb 5 - Sun, Feb 8
Delta Logo
10:11 am - 3:51 pmIAD-LEX
5h 40m1 stop
Delta Logo
7:26 am - 11:52 amLEX-IAD
4h 26m1 stop
$229Delta
Find Deal
Tue, Dec 9 - Wed, Dec 10
Delta Logo
10:08 am - 2:56 pmIAD-LEX
4h 48m1 stop
Delta Logo
1:04 pm - 6:21 pmLEX-IAD
5h 17m1 stop
$237Delta
Find Deal
Fri, Nov 14 - Sat, Nov 22
Delta Logo
12:36 pm - 7:14 pmIAD-LEX
6h 38m1 stop
Delta Logo
5:39 pm - 11:19 pmLEX-IAD
5h 40m1 stop
$239Delta
Find Deal
Fri, Nov 14 - Mon, Nov 17
Delta Logo
6:00 am - 12:20 pmIAD-LEX
6h 20m1 stop
Delta Logo
5:40 pm - 9:32 pmLEX-IAD
3h 52m1 stop
$259Delta
Find Deal
Fri, Feb 6 - Wed, Feb 11
Delta Logo
12:32 pm - 4:55 pmIAD-LEX
4h 23m1 stop
Delta Logo
10:37 am - 4:46 pmLEX-IAD
6h 09m1 stop
$268Delta
Find Deal
Sat, Nov 22 - Mon, Nov 24
American Airlines Logo
6:44 am - 10:47 amIAD-LEX
4h 03m1 stop
American Airlines Logo
11:21 am - 4:49 pmLEX-IAD
5h 28m1 stop
$269American Airlines
Find Deal
Tue, Dec 16 - Mon, Jan 5
United Airlines Logo
1:10 pm - 8:39 pmIAD-LEX
7h 29m1 stop
United Airlines Logo
6:00 am - 11:45 amLEX-IAD
5h 45m1 stop
$417United Airlines
Find Deal
Fri, Dec 12 - Sun, Dec 14
United Airlines Logo
8:20 am - 1:22 pmIAD-LEX
5h 02m1 stop
United Airlines Logo
7:00 am - 11:49 amLEX-IAD
4h 49m1 stop
$477United Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $199 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$199
Delta
Wed 2/4Sat 2/7
IAD - LEX • 1 stop
Cheapest one-way
$119
Delta
Sat 1/10
IAD - LEX • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Lexington!
Booking Insights

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 seasonAugust
Cheapest flight$119
Best time to beat the crowds with an average 47% drop in price.
Most popular time to fly and prices are also 47% 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 $119 for a one-way ticket and $199 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, and oneworld 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 $378 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $318 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.

Reviews of the 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.
7.9
DeltaOverall score based on 7998 reviews
8.5Crew
8.2Boarding
7.3Food
7.9Entertainment
7.9Comfort
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

It took way too long to diagnose and solve the problem of a broken crew member cabin seat. Though compensation for the volunteer who left the flight was very kind.

We fly American Airlines quite a bit. And we always fly business class when traveling internationally. We were a bit disappointed with the comfort of this particular plane as well as the entertainment options.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

My Internet did not work for Outlook email or basically anything. I paid for one hour of in-flight usage and it was terrible. I spent a lot of time on different sites and browsers with no luck and a lot of frustration. Other than that, the flight was on time, crew was nice, service was fine. Seat was OK even though I paid for the extra 6 inches. I cannot imagine how tight the seats in the back must be.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

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

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