HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lexington

$143+ Cheap flights from Dulles Intl (IAD) to Lexington (LEX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LEX
Sep 14 — Sep 211
Mon 9/14
Mon 9/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Lexington with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Lexington

Cheapest flights from Dulles Intl to Lexington
Explore the most affordable flight options available from Dulles Intl to Lexington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2026.

This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:12 am -
1 stop23h 18m
Fri 10/99:49 pm -
1 stop12h 28m
Deal found 8/12$283
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:13 pm -
1 stop20h 07m
Fri 10/23:26 pm -
1 stop5h 14m
Deal found 8/10$307
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:10 am -
1 stop3h 49m
Mon 10/56:00 pm -
1 stop5h 14m
Deal found 8/12$329
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:15 am -
2 stops12h 09m
Tue 10/132:25 pm -
1 stop6h 21m
Deal found 8/11$334
This American Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:30 pm -
2 stops11h 16m
Tue 9/225:23 am -
2 stops12h 08m
Deal found 8/10$339
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:21 am -
1 stop10h 40m
Sun 11/18:45 am -
1 stop10h 24m
Deal found 8/14$347
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:26 pm -
1 stop5h 47m
Wed 9/166:00 am -
1 stop5h 30m
Deal found 8/11$349
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:14 am -
2 stops11h 17m
Sun 9/135:00 am -
1 stop3h 42m
Deal found 8/11$354
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:15 am -
2 stops12h 09m
Sat 10/1711:14 am -
2 stops10h 02m
Deal found 8/11$359
This American Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:17 am -
1 stop3h 54m
Mon 9/77:13 pm -
1 stop3h 42m
Deal found 8/11$369

Find flight deals from Dulles Intl to Lexington

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Lexington (LEX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$283
(Kiwi.com)

One-way from

$143
(Kiwi.com)

Popular in

July

Cheapest in

December

Average price

$388
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Lexington Blue Grass flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Lexington Blue Grass flights.
Search Deals
From Washington, D.C. Dulles Intl to Lexington Blue Grass
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Lexington Blue Grass
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Lexington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 15, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Lexington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Lexington

IAD Washington, D.C. Dulles Intl - LEX Lexington Blue Grass

IADLEX

Washington, D.C. Dulles Intl

Wed 10/14

6:00 am-11:58 am

1 stop5h 58m

Lexington Blue Grass

Sat 10/17

10:28 am-4:16 pm

1 stop5h 48m

$329

Washington, D.C.Lexington

IAD Washington, D.C. Dulles Intl - LEX Lexington Blue Grass

IADLEX

Washington, D.C. Dulles Intl

Thu 10/1

6:10 am-9:59 am

1 stop3h 49m

Lexington Blue Grass

Mon 10/5

5:57 pm-12:41 am

1 stop6h 44m

$329

Washington, D.C.Lexington

IAD Washington, D.C. Dulles Intl - LEX Lexington Blue Grass

IADLEX

Washington, D.C. Dulles Intl

Fri 11/20

6:00 am-11:52 am

1 stop5h 52m

Lexington Blue Grass

Mon 11/23

10:30 am-4:26 pm

1 stop5h 56m

$329

Washington, D.C.Lexington

IAD Washington, D.C. Dulles Intl - LEX Lexington Blue Grass

IADLEX

Washington, D.C. Dulles Intl

Fri 10/30

6:12 pm-11:59 pm

1 stop5h 47m

Lexington Blue Grass

Sun 11/1

7:59 pm-12:42 am

1 stop4h 43m

$329
Quickest round-trip

Washington, D.C.Lexington

IAD Washington, D.C. Dulles Intl - LEX Lexington Blue Grass

IADLEX

Washington, D.C. Dulles Intl

Fri 9/11

6:10 am-9:59 am

1 stop3h 49m

Lexington Blue Grass

Fri 9/18

10:39 am-4:30 pm

1 stop5h 51m

$349

Washington, D.C.Lexington

IAD Washington, D.C. Dulles Intl - LEX Lexington Blue Grass

IADLEX

Washington, D.C. Dulles Intl

Thu 10/29

6:12 pm-11:59 pm

1 stop5h 47m

Lexington Blue Grass

Sun 11/1

7:59 pm-12:42 am

1 stop4h 43m

$374
Cheapest one-way
Quickest one-way

Washington, D.C.Lexington

IAD Washington, D.C. Dulles Intl - LEX Lexington Blue Grass

IADLEX

Washington, D.C. Dulles Intl

Mon 10/19

8:03 am-11:58 am

1 stop3h 55m

$234

Washington, D.C.Lexington

IAD Washington, D.C. Dulles Intl - LEX Lexington Blue Grass

IADLEX

Washington, D.C. Dulles Intl

Tue 9/15

10:25 am-5:31 pm

2 stops7h 06m

$239

Washington, D.C.Lexington

IAD Washington, D.C. Dulles Intl - LEX Lexington Blue Grass

IADLEX

Washington, D.C. Dulles Intl

Thu 10/29

9:21 am-8:28 pm

3 stops35h 07m

$252

Washington, D.C.Lexington

IAD Washington, D.C. Dulles Intl - LEX Lexington Blue Grass

IADLEX

Washington, D.C. Dulles Intl

Thu 8/27

10:35 am-5:35 pm

1 stop7h 00m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from Dulles Intl to Lexington

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Lexington in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Lexington flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Lexington flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Lexington flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Lexington flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Lexington flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Lexington

Have a flexible travel schedule? Discover the best time to fly to Lexington from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Lexington

How often are flights from Washington, D.C. to Lexington delayed?

About 14% of weekly flights between Washington, D.C. and Lexington have experienced delays in the past year, with the average delay time being 61 minutes.

What is the most punctual flight time for Washington, D.C. to Lexington flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.

Reviews of airlines servicing Lexington

Get insights into the airlines that provide service to Lexington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lexington. Reviews last updated August 15, 2026.
Get a feel of what it's like to fly with Delta and American Airlines from Washington, D.C. Dulles Intl Airport to Lexington by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,508 reviews

Crew

8.5

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,508 reviews
Delta
7.8
Good
8,508 reviews

Crew

8.5

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,941 reviews
Delta
7.8
Good
8,508 reviews

Crew

8.5

Boarding

8.1

Overall

7.8

Entertainment

7.8

Comfort

7.8

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Lexington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Lexington from Washington, D.C. Dulles Intl?

    Most people fly into Lexington Blue Grass (LEX) if they book a flight to Lexington from Washington, D.C. Dulles Intl. On average, Blue Grass has 0 inbound flights from Washington, D.C. Dulles Intl per day from 2 airlines. Lexington Blue Grass is conveniently located just 5.6 mi from Lexington’s city center.

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

    A quick flight from Washington, D.C. Dulles Intl Airport to Lexington can take about 5h 58m. Delta provides one of the quickest options available for as low as $329. There are 392 mi between Washington, D.C. Dulles Intl Airport and Lexington.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Lexington round-trip?

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Lexington round-trip from $218. Another airline that can offer you cheap pricing is Delta. American Airlines is currently priced 51% below the average price you’ll pay for this route.

  • Can I find deals for flights from Dulles Intl to Lexington that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Lexington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Lexington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Lexington.

  • Can I find deals for business class flights from Dulles Intl to Lexington?

    Yes. Cheapflights offers flight deals from Dulles Intl to Lexington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Lexington?

Book flights to Lexington if you plan to visit one of these locations
Somerset
Richmond
Danville
Berea
Frankfort
Georgetown

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Dulles Intl to Lexington

Discover the top 2 airlines that operate flights from Dulles Intl to Lexington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$218Average$505FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$369FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.