IAD - LEX

$124 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 4/29. 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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Everything you should know

Cheapest round-trip
$319
Delta
Mon 6/1Sat 6/6
IAD - LEX • 1 stop
Cheapest one-way
$124
Typical prices: $203-$333
Multiple Airlines
Wed 4/29
IAD - LEX • 2 stops
Top airlines
Cheapest • from $319 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Lexington. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $331 (round-trip)
Shortest trip • 4h 09m (one-way)
Insights
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Lexington!
Flight Deals
Booking Insights
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

Mon, Jun 1 - Sat, Jun 6
Delta Logo
3:08 pm - 10:05 pm
IAD
-
LEX
6h 57m
1 stop
Delta Logo
5:52 pm - 10:56 pm
LEX
-
IAD
5h 04m
1 stop
$319Delta
Wed, Jun 10 - Sun, Jun 14
Multiple Airlines Logo
5:27 pm - 8:27 am
IAD
-
LEX
15h 00m
1 stop
Multiple Airlines Logo
2:31 pm - 2:12 pm
LEX
-
IAD
23h 41m
2 stops
$333Multiple Airlines
Wed, Jun 10 - Sat, Jun 13
Multiple Airlines Logo
5:27 pm - 8:27 am
IAD
-
LEX
15h 00m
1 stop
Multiple Airlines Logo
12:02 pm - 8:04 pm
LEX
-
IAD
8h 02m
1 stop
$335Multiple Airlines
Sat, May 16 - Sun, May 17
Delta Logo
12:45 pm - 5:13 pm
IAD
-
LEX
4h 28m
1 stop
Delta Logo
8:19 pm - 12:51 am
LEX
-
IAD
4h 32m
1 stop
$339Delta
Sun, Jun 14 - Thu, Jun 25
Allegiant Air Logo
6:20 pm - 5:39 pm
IAD
-
LEX
23h 19m
1 stop
Allegiant Air Logo
2:11 pm - 2:16 pm
LEX
-
IAD
24h 05m
2 stops
$346Allegiant Air
Wed, Jun 10 - Sun, Jun 14
Multiple Airlines Logo
5:27 pm - 8:27 am
IAD
-
LEX
15h 00m
1 stop
Multiple Airlines Logo
2:31 pm - 9:12 am
LEX
-
IAD
18h 41m
1 stop
$350Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
Allegiant Air Logo
2:01 pm - 2:54 pm
IAD
-
LEX
24h 53m
2 stops
Allegiant Air Logo
9:32 am - 8:10 pm
LEX
-
IAD
10h 38m
1 stop
$358Allegiant Air
Fri, May 15 - Sun, May 17
American Airlines Logo
6:25 am - 10:58 am
IAD
-
LEX
4h 33m
1 stop
American Airlines Logo
5:51 pm - 11:59 pm
LEX
-
IAD
6h 08m
1 stop
$359American Airlines
Fri, Apr 3 - Thu, Apr 9
Delta Logo
7:29 pm - 11:53 pm
IAD
-
LEX
4h 24m
1 stop
Delta Logo
7:55 pm - 12:27 am
LEX
-
IAD
4h 32m
1 stop
$379Delta
Thu, Apr 23 - Mon, Apr 27
Allegiant Air Logo
2:01 pm - 2:54 pm
IAD
-
LEX
24h 53m
2 stops
Allegiant Air Logo
9:32 am - 8:01 pm
LEX
-
IAD
10h 29m
1 stop
$381Allegiant Air
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.

Which airlines provide the cheapest flights from Washington Dulles Airport to Lexington?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Lexington were found on Delta ($319) and Allegiant Air ($346).

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Lexington?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Lexington.

There is just one airline that flies from Washington, D.C. Dulles Intl Airport to Lexington direct and that is Delta. The best round-trip deal found from Delta for the route is $198.

Good to know

Low seasonDecember
Cheapest flight$124
Best time to beat the crowds with an average 41% drop in price.
Most popular time to fly and prices are also 36% 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 $124 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?

    oneworld, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Lexington, with oneworld 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 $347 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 $277 and an overall rating of 7.1.

  • 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 8286 reviews
7.2Food
8.5Crew
7.9Comfort
7.8Entertainment
8.1Boarding
Airline reviews

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

2.0 MediocreDouglas, Mar 2026
MSP - SEA
Read more Delta reviews

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

The gate got changed several times and the flight was delayed over an hour. Awful experience

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

delayed due to weather. Could not communicate with family since the wifi was broken

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

We were told the flight was delayed 5 times, then it was moved to the next day.

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

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

Information on your arrival and departure airports