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Dulles Intl

$209+ Cheap flights from Lexington (LEX) to Dulles Intl (IAD)

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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
LEX — IAD
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Lexington to Dulles Intl

Cheapest flights from Lexington to Dulles Intl
Explore the most affordable flight options available from Lexington to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Delta deal was found by Cheapflights users on 1/24. 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 3/127:55 pm
LEX
-
IAD
1 stop4h 32m
Delta
Fri 3/206:00 am
IAD
-
LEX
1 stop3h 48m
Delta
Deal found 1/24$279
This American Airlines deal was found by Cheapflights users on 1/24. 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 3/73:00 pm
LEX
-
IAD
1 stop5h 30m
American Airlines
Sun 3/85:00 am
IAD
-
LEX
1 stop5h 51m
American Airlines
Deal found 1/24$299
This Delta deal was found by Cheapflights users on 1/24. 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.
Sat 2/1410:03 am
LEX
-
IAD
1 stop5h 31m
Delta
Mon 2/166:00 am
IAD
-
LEX
1 stop3h 55m
Delta
Deal found 1/24$319
This Delta deal was found by Cheapflights users on 1/25. 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 2/125:35 pm
LEX
-
IAD
1 stop5h 34m
Delta
Sat 2/146:00 am
IAD
-
LEX
1 stop3h 59m
Delta
Deal found 1/25$339
This American Airlines deal was found by Cheapflights users on 1/26. 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 5/2111:03 am
LEX
-
IAD
1 stop6h 11m
American Airlines
Sun 5/245:45 pm
IAD
-
LEX
1 stop6h 13m
American Airlines
Deal found 1/26$359
This American Airlines deal was found by Cheapflights users on 1/23. 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 2/46:00 am
LEX
-
IAD
1 stop6h 36m
American Airlines
Wed 2/1811:30 am
IAD
-
LEX
1 stop5h 30m
American Airlines
Deal found 1/23$369
This American Airlines deal was found by Cheapflights users on 1/26. 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.
Fri 10/303:47 pm
LEX
-
IAD
1 stop3h 37m
American Airlines
Sun 11/18:09 pm
IAD
-
LEX
1 stop3h 50m
American Airlines
Deal found 1/26$379
This Delta deal was found by Cheapflights users on 1/24. 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 2/510:31 am
LEX
-
IAD
1 stop4h 14m
Delta
Sun 2/85:59 pm
IAD
-
LEX
1 stop5h 52m
Delta
Deal found 1/24$389
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 2/511:51 am
LEX
-
IAD
2 stops22h 04m
Multiple Airlines
Sun 2/86:37 pm
IAD
-
LEX
1 stop19h 34m
Multiple Airlines
Deal found 1/24$390
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 2/209:46 pm
LEX
-
IAD
2 stops45h 54m
Allegiant Air
Fri 2/273:46 pm
IAD
-
LEX
1 stop18h 27m
Allegiant Air
Deal found 1/25$408
This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:30 pm
LEX
-
IAD
1 stop4h 48m
United Airlines
Sat 5/98:20 am
IAD
-
LEX
1 stop4h 58m
United Airlines
Deal found 1/26$417
This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/28:35 am
LEX
-
IAD
1 stop7h 25m
United Airlines
Sat 2/71:05 pm
IAD
-
LEX
1 stop7h 26m
United Airlines
Deal found 1/26$419

Find flight deals from Lexington to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Lexington (LEX) to Dulles Intl (IAD). 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$279
(Delta)

One-way from

$209
(United Airlines)

Popular in

June

Cheapest in

July

Average price

$283
Provider with most accurate pricing for Lexington Blue Grass-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lexington Blue Grass-Washington, D.C. Dulles Intl flights.
Search Deals
From Lexington Blue Grass to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Lexington Blue Grass to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Lexington to Dulles Intl 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 January 26, 2026.
Use the filters below to find and compare flights from Lexington to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Lexington

Fly to

Dulles Intl

Route

Depart

Return

Price

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 3/12

7:55 pm-12:27 am

1 stop4h 32m

Washington, D.C. Dulles Intl

Mon 3/16

5:32 pm-9:42 pm

1 stop4h 10m

$279

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 3/12

7:55 pm-12:27 am

1 stop4h 32m

Washington, D.C. Dulles Intl

Fri 3/20

6:00 am-9:48 am

1 stop3h 48m

$279

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Wed 5/20

7:45 pm-12:09 am

1 stop4h 24m

Washington, D.C. Dulles Intl

Sun 5/24

6:00 am-10:16 am

1 stop4h 16m

$279

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Fri 2/20

5:00 am-8:48 am

1 stop3h 48m

Washington, D.C. Dulles Intl

Sun 2/22

5:00 am-10:51 am

1 stop5h 51m

$319

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 2/12

5:35 pm-11:09 pm

1 stop5h 34m

Washington, D.C. Dulles Intl

Sat 2/14

6:00 am-9:59 am

1 stop3h 59m

$339

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 5/21

5:50 pm-10:59 pm

1 stop5h 09m

Washington, D.C. Dulles Intl

Sun 5/24

6:00 am-10:16 am

1 stop4h 16m

$339

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Sun 7/5

7:45 pm-12:09 am

1 stop4h 24m

Washington, D.C. Dulles Intl

Sat 7/11

1:00 pm-5:12 pm

1 stop4h 12m

$339

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Fri 2/13

7:55 pm-12:21 am

1 stop4h 26m

Washington, D.C. Dulles Intl

Mon 2/16

6:00 am-9:55 am

1 stop3h 55m

$339

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Fri 5/22

7:45 pm-12:09 am

1 stop4h 24m

Washington, D.C. Dulles Intl

Mon 5/25

6:00 am-10:16 am

1 stop4h 16m

$339

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Mon 3/2

7:55 pm-12:21 am

1 stop4h 26m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/23

Showing 1-10 of 21 results
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Compare providers for flights from Lexington to Dulles Intl

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 Lexington to Dulles Intl in January.
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 Lexington-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lexington-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lexington-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Lexington-Washington, D.C. Dulles Intl Airport 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 Lexington-Washington, D.C. Dulles Intl Airport 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 Lexington to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Lexington 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 Lexington to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Lexington to Washington, D.C. Dulles Intl Airport?

Currently, December is the cheapest month in which you can book a flight from Lexington to Washington, D.C. Dulles Intl Airport (average of $172). Flying from Lexington to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $222). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated January 26, 2026.
See what other customers who have flown with Delta from Lexington to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,111 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,111 reviews
Delta
7.9
Good
8,111 reviews

Comfort

7.9

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Lexington to Dulles Intl. 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 from for flights from Lexington to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Lexington, you will be flying from Blue Grass, which is the city’s only airport. Lexington Blue Grass (LEX) is located 5.6 mi from the center of Lexington. There are 0 flights from Blue Grass to Washington, D.C. Dulles Intl per day from 1 airline.

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

    Airlines like Delta fly from Lexington to Washington, D.C. Dulles Intl Airport in about 4h 32m. The time it takes to get you to your destination can typically vary by up to . There are 392 mi between Lexington and Washington, D.C. Dulles Intl Airport.

  • What is the cheapest airline to fly from Lexington to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on Delta is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $159.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Lexington to Washington, D.C. Dulles Intl Airport?

    Currently, December is the cheapest month in which you can book a flight from Lexington to Washington, D.C. Dulles Intl Airport (average of $172). Flying from Lexington to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $222). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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Alternative routes for Lexington to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Dulles Intl flights
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Louisville to Reagan-National flights
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Evansville to Baltimore flights
Evansville to Dulles Intl flights
Evansville to Reagan-National flights
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Owensboro to Reagan-National flights

Top airline flying from Lexington to Dulles Intl

Discover the top airline that operate flights from Lexington to Dulles Intl. 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$159Average$427FlexibilityNo cancel feeOn-timeN/A

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