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Dulles Intl

$119+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
LEX — IAD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$199
(Delta)

One-way from

$119
(Delta)

Popular in

October

Cheapest in

July

Average price

$333
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. 15% potential increase in price ($57 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 September 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 September 11, 2025.

This Delta deal was found by Cheapflights users on 9/9. 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 10/167:59 pmLEX - IAD
1 stop4h 13mDelta
Mon 10/207:35 pmIAD - LEX
1 stop4h 29mDelta
Deal found 9/9$199
This Delta deal was found by Cheapflights users on 9/8. 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.
Mon 9/227:53 pmLEX - IAD
1 stop4h 20mDelta
Mon 9/295:25 pmIAD - LEX
1 stop4h 12mDelta
Deal found 9/8$229
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 10/163:52 pmLEX - IAD
1 stop27h 27mMultiple Airlines
Mon 10/2010:09 amIAD - LEX
1 stop10h 00mMultiple Airlines
Deal found 9/10$231
This Delta deal was found by Cheapflights users on 9/9. 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 11/207:59 pmLEX - IAD
1 stop4h 19mDelta
Mon 11/246:00 amIAD - LEX
1 stop3h 54mDelta
Deal found 9/9$238
This Delta deal was found by Cheapflights users on 9/9. 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 9/306:00 amLEX - IAD
1 stop5h 40mDelta
Wed 10/156:05 amIAD - LEX
1 stop3h 40mDelta
Deal found 9/9$248
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 12/1111:18 amLEX - IAD
2 stops13h 01mMultiple Airlines
Sun 12/145:21 pmIAD - LEX
1 stop17h 01mMultiple Airlines
Deal found 9/10$255
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/411:18 amLEX - IAD
2 stops13h 01mMultiple Airlines
Sun 12/75:21 pmIAD - LEX
1 stop17h 01mMultiple Airlines
Deal found 9/11$256
This Delta deal was found by Cheapflights users on 9/9. 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 9/257:53 pmLEX - IAD
1 stop4h 20mDelta
Wed 10/156:05 amIAD - LEX
1 stop3h 40mDelta
Deal found 9/9$258
This American Airlines deal was found by Cheapflights users on 9/10. 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 11/77:51 amLEX - IAD
1 stop5h 44mAmerican Airlines
Sun 11/96:24 amIAD - LEX
1 stop4h 23mAmerican Airlines
Deal found 9/10$259
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/245:48 pmLEX - IAD
1 stop5h 18mDelta
Sat 9/276:00 amIAD - LEX
1 stop3h 44mDelta
Deal found 9/10$269
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:56 pmLEX - IAD
1 stop6h 17mDelta
Sun 9/216:00 amIAD - LEX
1 stop3h 44mDelta
Deal found 9/10$279

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 September 11, 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 10/16

7:59 pm-12:12 am

1 stop4h 13m

Washington, D.C. Dulles Intl

Mon 10/20

7:35 pm-12:04 am

1 stop4h 29m

$199

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Tue 9/23

6:15 pm-11:17 pm

1 stop5h 02m

Washington, D.C. Dulles Intl

Tue 9/30

5:00 pm-9:32 pm

1 stop4h 32m

$229

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Tue 9/23

6:15 pm-11:17 pm

1 stop5h 02m

Washington, D.C. Dulles Intl

Mon 9/29

5:25 pm-9:37 pm

1 stop4h 12m

$229

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Mon 9/22

7:53 pm-12:13 am

1 stop4h 20m

Washington, D.C. Dulles Intl

Mon 9/29

5:25 pm-9:37 pm

1 stop4h 12m

$229

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 10/16

7:59 pm-12:12 am

1 stop4h 13m

Washington, D.C. Dulles Intl

Sun 10/19

6:05 am-9:45 am

1 stop3h 40m

$229

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Mon 9/22

7:53 pm-12:13 am

1 stop4h 20m

Washington, D.C. Dulles Intl

Tue 9/30

3:31 pm-7:08 pm

1 stop3h 37m

$229

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 11/20

7:59 pm-12:18 am

1 stop4h 19m

Washington, D.C. Dulles Intl

Mon 11/24

6:00 am-9:54 am

1 stop3h 54m

$238

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Tue 9/30

6:00 am-11:40 am

1 stop5h 40m

Washington, D.C. Dulles Intl

Wed 10/15

6:05 am-9:45 am

1 stop3h 40m

$248

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Wed 10/8

5:54 pm-11:00 pm

1 stop5h 06m

Washington, D.C. Dulles Intl

Wed 10/15

6:05 am-9:45 am

1 stop3h 40m

$248

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Thu 12/4

11:18 am-12:19 am

2 stops13h 01m

Washington, D.C. Dulles Intl

Sun 12/7

5:21 pm-10:22 am

1 stop17h 01m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 results
1
2

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 $292). 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 September 11, 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 September 11, 2025.
See what other customers who have flown with Delta 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
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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.

  • 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 13m. 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 are the cheapest airlines flying 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. Another option worth looking into is American Airlines, starting at $188 round trip.

  • 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 $292). 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
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

Browse thousands of different options on Cheapflights for your next trip

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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.
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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$159Average$388FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$188Average$651FlexibilityNo cancel feeOn-time71%

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