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Dulles Intl

$109+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
LEX — IAD
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheap 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 July 28, 2025.

Round-trip from

$179
(American Airlines)

One-way from

$109
(American Airlines)

Popular in

October

Cheapest in

July

Average price

$185
From Lexington Blue Grass to Washington, D.C. Dulles Intl
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One-way flight from Lexington Blue Grass to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 16% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 28, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. 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 8/285:00 amLEX - IAD
1 stop3h 42mAmerican Airlines
Tue 9/27:25 pmIAD - LEX
1 stop3h 35mAmerican Airlines
Deal found 7/28$179
This Delta deal was found by Cheapflights users on 7/28. 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.
Tue 12/235:42 pmLEX - IAD
1 stop6h 57mDelta
Wed 1/75:00 pmIAD - LEX
1 stop5h 54mDelta
Deal found 7/28$257
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 12/265:48 pmLEX - IAD
1 stop6h 27mUnited Airlines
Sat 1/101:05 pmIAD - LEX
1 stop7h 18mUnited Airlines
Deal found 7/28$420
This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/39:27 amLEX - IAD
2 stops23h 56mMultiple Airlines
Thu 8/75:40 pmIAD - LEX
3 stops21h 05mMultiple Airlines
Deal found 7/27$434

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 July 28, 2025.
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 8/28

5:00 am-8:42 am

1 stop3h 42m

Washington, D.C. Dulles Intl

Tue 9/2

7:25 pm-11:00 pm

1 stop3h 35m

$179

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Tue 8/19

5:50 pm-10:55 pm

1 stop5h 05m

Washington, D.C. Dulles Intl

Thu 8/21

6:00 am-9:44 am

1 stop3h 44m

$257

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Sun 8/3

9:27 am-9:23 am

2 stops23h 56m

Washington, D.C. Dulles Intl

Thu 8/7

5:40 pm-2:45 pm

3 stops21h 05m

$434

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 9/18

7:00 am-11:55 am

1 stop4h 55m

Washington, D.C. Dulles Intl

Tue 9/23

12:40 pm-11:37 pm

2 stops10h 57m

$455

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 9/4

9:50 am-1:51 pm

1 stop4h 01m

$109

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Sun 9/7

12:16 pm-9:59 am

2 stops21h 43m

$155

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Sun 9/21

5:56 pm-12:13 am

1 stop6h 17m

$159

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 9/4

12:16 pm-11:23 am

3 stops23h 07m

$217

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 9/11

7:00 am-2:37 pm

1 stop7h 37m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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, August is the cheapest month in which you can book a flight from Lexington to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Lexington to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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.

What is the cheapest time of day to fly from LEX to IAD?

Find hourly flight availability from Lexington to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

When flying from Lexington to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 14% versus a flight at noon.

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 July 28, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines 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
8.0
Very good
7,971 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,971 reviews
Delta
8.0
Very good
7,971 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,893 reviews
Delta
8.0
Very good
7,971 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,971 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
702 reviews
Delta
8.0
Very good
7,971 reviews

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 2 different airlines.

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

    Flying on American Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $179. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $257 and $455, respectively.

  • What are the cheapest airlines to fly from Lexington to Washington, D.C. Dulles Intl Airport one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $109. Users have also found prices from $155 and $159 on Allegiant Air and Delta, respectively.

  • 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, August is the cheapest month in which you can book a flight from Lexington to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Lexington to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Easton
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
Springfield
National Harbor
Dundalk

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Alternative routes for Lexington to Dulles Intl

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Top 2 airlines flying from Lexington to Dulles Intl

Discover the top 2 airlines 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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$159Average$388FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$318Average$651FlexibilityNo cancel feeOn-time71%

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