IAD - LEX

$90 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 11/19. 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

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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Flights 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, Jul 23 - Mon, Jul 28
American Airlines Logo
9:03 am - 1:38 pmIAD-LEX
4h 35m1 stop
American Airlines Logo
8:15 pm - 11:58 pmLEX-IAD
3h 43m1 stop
$179American Airlines
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Wed, Jul 9 - Wed, Jul 16
American Airlines Logo
1:19 pm - 5:36 pmIAD-LEX
4h 17m1 stop
American Airlines Logo
5:00 am - 8:33 amLEX-IAD
3h 33m1 stop
$189American Airlines
Find Deal
Tue, Jul 8 - Wed, Jul 9
Delta Logo
6:00 am - 9:44 amIAD-LEX
3h 44m1 stop
Delta Logo
7:00 am - 11:50 amLEX-IAD
4h 50m1 stop
$257Delta
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Mon, Jul 7 - Wed, Jul 9
Allegiant Air Logo
3:13 pm - 8:03 pmIAD-LEX
28h 50m2 stops
Allegiant Air Logo
9:17 pm - 8:35 amLEX-IAD
11h 18m1 stop
$264Allegiant Air
Find Deal
Sat, Jul 12 - Fri, Jul 25
Delta Logo
6:00 am - 11:33 amIAD-LEX
5h 33m1 stop
Delta Logo
5:59 pm - 10:16 pmLEX-IAD
4h 17m1 stop
$277Delta
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Sat, Jul 26 - Sat, Aug 2
Allegiant Air Logo
2:40 pm - 9:50 pmIAD-LEX
7h 10m1 stop
Allegiant Air Logo
2:50 pm - 11:08 amLEX-IAD
20h 18m2 stops
$278Allegiant Air
Find Deal
Wed, Jul 9 - Wed, Jul 16
 Logo
5:40 pm - 1:38 pmIAD-LEX
19h 58m3 stops
 Logo
9:17 pm - 8:35 amLEX-IAD
11h 18m1 stop
Sat, Jul 26 - Sat, Aug 2
 Logo
8:25 am - 1:38 pmIAD-LEX
29h 13m3 stops
 Logo
2:50 pm - 11:08 amLEX-IAD
20h 18m2 stops
Thu, Oct 2 - Sun, Oct 5
United Airlines Logo
5:15 pm - 11:57 pmIAD-LEX
6h 42m1 stop
United Airlines Logo
7:05 am - 11:55 amLEX-IAD
4h 50m1 stop
$470United Airlines
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Sun, Jun 29 - Sat, Jul 5
United Airlines Logo
5:18 pm - 11:44 pmIAD-LEX
6h 26m1 stop
United Airlines Logo
5:44 pm - 7:11 amLEX-IAD
13h 27m2 stops
$489United Airlines
Find Deal
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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 seasonMarch
High seasonJuly
Cheapest flight$90
Best time to beat the crowds with an average 43% drop in price.
Most popular time to fly and prices are also 20% 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 $90 for a one-way ticket and $179 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, Star Alliance, and SkyTeam 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 $338 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 $498 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.

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 7950 reviews
8.2Boarding
7.3Food
8.5Crew
7.9Comfort
7.9Entertainment
Airline reviews

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

10.0 ExcellentTim, Jun 2025MSP - BUF
Read more Delta reviews

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Pitch was very small. Knees were on the seat back in front of me.

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)

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.

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

Information on your arrival and departure airports

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