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Dulles Intl

$90+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
LEX — IAD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$179
(American Airlines)

One-way from

$90
(American Airlines)

Popular in

July

Cheapest in

January

Average price

$348
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. 6% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 8/2211:33 amLEX - IAD
1 stop3h 46mAmerican Airlines
Tue 8/264:36 pmIAD - LEX
1 stop6h 24mAmerican Airlines
Deal found 6/10$179
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/169:17 pmLEX - IAD
1 stop11h 18mAllegiant Air
Fri 7/184:46 pmIAD - LEX
2 stops15h 08mAllegiant Air
Deal found 6/12$253
This Delta deal was found by Cheapflights users on 6/11. 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.
Thu 7/178:15 pmLEX - IAD
1 stop4h 19mDelta
Sat 7/196:00 amIAD - LEX
1 stop5h 33mDelta
Deal found 6/11$257
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/99:17 pmLEX - IAD
1 stop11h 18mMultiple Airlines
Wed 7/165:40 pmIAD - LEX
3 stops19h 58mMultiple Airlines
Deal found 6/11$307
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/112:05 pmLEX - IAD
2 stops21h 42mUnited Airlines
Sat 7/123:39 pmIAD - LEX
1 stop4h 42mUnited Airlines
Deal found 6/10$444

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 June 12, 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

Fri 8/22

11:33 am-3:19 pm

1 stop3h 46m

Washington, D.C. Dulles Intl

Tue 8/26

4:36 pm-11:00 pm

1 stop6h 24m

$179

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Wed 7/16

9:17 pm-8:35 am

1 stop11h 18m

Washington, D.C. Dulles Intl

Fri 7/18

4:46 pm-7:54 am

2 stops15h 08m

$253

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 7/17

8:15 pm-12:34 am

1 stop4h 19m

Washington, D.C. Dulles Intl

Sat 7/19

6:00 am-11:33 am

1 stop5h 33m

$257

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Wed 7/9

9:17 pm-8:35 am

1 stop11h 18m

Washington, D.C. Dulles Intl

Wed 7/16

5:40 pm-1:38 pm

3 stops19h 58m

$307

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Fri 7/11

2:05 pm-11:47 am

2 stops21h 42m

Washington, D.C. Dulles Intl

Sat 7/12

3:39 pm-8:21 pm

1 stop4h 42m

$444

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Tue 7/8

8:15 pm-11:58 pm

1 stop3h 43m

$90

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Tue 7/8

6:49 pm-11:16 pm

1 stop4h 27m

$129

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 7/3

8:57 am-9:23 am

2 stops24h 26m

$149

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 7/10

10:00 am-11:20 am

3 stops25h 20m

$181

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Tue 10/7

6:01 pm-7:11 am

2 stops13h 10m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 July is currently the most expensive (average of $349). 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 June 12, 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.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Delta, United Airlines and Allegiant Air from Lexington to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7.3
Good
725 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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 Allegiant Air and Delta, with the lowest prices starting at $253 and $257, respectively. Users have found that American Airlines is 60% cheaper than the other options available to this destination.

  • 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 $90. Users have also found prices from $129 and $149 on Delta and Allegiant Air, 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 July is currently the most expensive (average of $349). 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 Lexington?

Book flights to Lexington if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Sterling
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$388FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$318Average$651FlexibilityNo cancel feeOn-time71%

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