IAD - LEX

$132 Find Cheap Flights from Washington Dulles Airport to Lexington - Compare and Save

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 10/28. 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

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Everything you should know

Cheapest round-trip
$270
Allegiant Air
Fri 11/6Sun 11/8
IAD - LEX • 1 stop
Cheapest one-way
$127
Multiple Airlines
Wed 10/28
IAD - LEX • 1 stop
Top airlines
Cheapest • from $329 (round-trip)
Best reviews • 7.8 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 $337 (round-trip)
Shortest trip • 4h 00m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Fri, Nov 6 - Sun, Nov 8
Multiple Airlines Logo
10:49 am - 4:19 pm
IAD
-
LEX
5h 30m
1 stop
Multiple Airlines Logo
7:24 pm - 8:21 pm
LEX
-
IAD
24h 57m
1 stop
$270Multiple Airlines
Thu, Aug 13 - Sun, Aug 16
Multiple Airlines Logo
6:30 pm - 8:13 am
IAD
-
LEX
13h 43m
1 stop
Multiple Airlines Logo
3:05 pm - 5:14 pm
LEX
-
IAD
26h 09m
2 stops
$277Multiple Airlines
Fri, Nov 6 - Sun, Nov 8
Multiple Airlines Logo
10:49 am - 4:19 pm
IAD
-
LEX
5h 30m
1 stop
Multiple Airlines Logo
7:24 pm - 5:36 pm
LEX
-
IAD
22h 12m
2 stops
$307Multiple Airlines
Thu, Aug 13 - Sun, Aug 16
Multiple Airlines Logo
6:30 pm - 8:13 am
IAD
-
LEX
13h 43m
1 stop
Multiple Airlines Logo
3:05 pm - 7:38 pm
LEX
-
IAD
28h 33m
1 stop
$315Multiple Airlines
Wed, Nov 11 - Sun, Nov 15
American Airlines Logo
7:17 pm - 11:12 pm
IAD
-
LEX
3h 55m
1 stop
American Airlines Logo
5:00 am - 9:03 am
LEX
-
IAD
4h 03m
1 stop
$329American Airlines
Thu, Oct 1 - Mon, Oct 5
American Airlines Logo
6:14 am - 11:13 am
IAD
-
LEX
4h 59m
1 stop
American Airlines Logo
8:03 pm - 11:58 pm
LEX
-
IAD
3h 55m
1 stop
$329American Airlines
Tue, Nov 24 - Mon, Nov 30
Delta Logo
5:16 pm - 9:18 pm
IAD
-
LEX
4h 02m
1 stop
Delta Logo
7:55 pm - 12:39 am
LEX
-
IAD
4h 44m
1 stop
$329Delta
Mon, Nov 23 - Mon, Nov 30
Delta Logo
3:00 pm - 9:25 pm
IAD
-
LEX
6h 25m
1 stop
Delta Logo
7:55 pm - 12:39 am
LEX
-
IAD
4h 44m
1 stop
$329Delta
Thu, Oct 1 - Mon, Oct 5
American Airlines Logo
6:14 am - 11:13 am
IAD
-
LEX
4h 59m
1 stop
American Airlines Logo
8:03 pm - 11:58 pm
LEX
-
IAD
3h 55m
1 stop
$329American Airlines
Fri, Dec 4 - Sun, Dec 6
Delta Logo
3:00 pm - 9:25 pm
IAD
-
LEX
6h 25m
1 stop
Delta Logo
6:00 am - 11:35 am
LEX
-
IAD
5h 35m
1 stop
$329Delta
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 is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Lexington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Lexington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Lexington is March, where tickets cost $0 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $866 and $548 respectively.

Good to know

Low season

December

Cheapest flight

$132
Best time to beat the crowds with an average 50% drop in price.
Most popular time to fly and prices are also 46% 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 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Lexington was $127 for a one-way ticket and $270 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 $369 and an overall rating of 7.8, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $238 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.
7.8
DeltaOverall score based on 8482 reviews
7.8Entertainment
8.5Crew
8.1Boarding
7.8Comfort
7.2Food
Airline reviews

First flight was delayed which resulted in missing our connecting. As a result class was downgraded to economy on a later flight.

4.0 OkayShameem, Jul 2026
DEN - MSP
Read more Delta reviews

First flight was delayed which resulted in missing our connecting. As a result class was downgraded to economy on a later flight.

The gentleman at the gate I think his name is RIE was exceptional

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Waited at the usual crowded gate at DCA where one ends up standing up because there aren't enough seats.

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

I wouldn't say I liked being forced to check my small roller bag at the gate; too many people had bags and were in a higher boarding group.

715PM departure was 2.5 hours late. Received hotel & food voucher but after we already booked a room. Entire team just seemed like they were 2-3 steps behind in execution, and notifcations.

Patrons with larger bags were asked to check the bags when boarding. Seems like the most effective, and least costly way, way to successfully use the cramped space.

They cancelled our flight two times after rebooking us for a later flight. We never got on the plane. We found another solution by driving.

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

The small flights with Valet Luggage has a poor service

Human interaction. Thought there would be more service-even a smile would have been nice.

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.

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.

I was not given the option to get on a different flight even though I was going to miss my connection due to weather delays (I did). When I called early in the morning, they said it wasn't delayed long enough; though I knew it would be by the time it was time for the flight ... it was and by that time it was too late. I wasn't given the option to pre-board with my toddler, and the food service was less than normal due to delays .... at least that's what the crew said.

American is a steady for me. I always get what I expect from them. Sincere effort to get me from one place to another.

Sat on the tarmac for a good half hour before take off

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

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