What is the cheapest airline that flies from Lexington Blue Grass to Washington, D.C. Dulles Intl?

Delta and American Airlines are the most popular carriers operating from Lexington Blue Grass to Washington, D.C. Dulles Intl

When did momondo last update prices for flights from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport?

Prices for flights from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport refresh daily.

How many operators does momondo search for flights from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport?

As of October 2026, there are 2 operators available to choose from for flights from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport.

How old do you have to be to fly from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport.

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$143 Cheap Flights from Lexington to Washington, D.C. Dulles Intl Airport in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Lexington to Washington, D.C.

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:03 pm - 10:02 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

9h 59m1 stop Fort Lauderdale

10:21 am - 3:32 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

29h 11m1 stop Sarasota Bradenton Intl

$255Multiple Airlines

Thu, Jan 28 - Sun, Jan 31

6:00 am - 11:39 amLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

5h 39m1 stop Atlanta Hartsfield-Jackson

8:02 am - 2:47 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

6h 45m1 stop Atlanta Hartsfield-Jackson

$299Delta

Wed, Dec 2 - Sat, Dec 5

4:56 pm - 9:10 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

4h 14m1 stop Charlotte Douglas

10:36 am - 4:26 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

5h 50m1 stop Charlotte Douglas

$299American Airlines

Thu, Jan 21 - Sat, Jan 23

8:30 am - 3:40 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

7h 10m1 stop Charlotte Douglas

4:13 pm - 11:05 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

6h 52m1 stop Charlotte Douglas

$299American Airlines

Thu, Jan 28 - Sun, Jan 31

3:34 pm - 8:11 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

4h 37m1 stop Atlanta Hartsfield-Jackson

3:00 pm - 7:12 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

4h 12m1 stop Atlanta Hartsfield-Jackson

$299Delta

Wed, Dec 2 - Thu, Dec 3

1:10 pm - 6:05 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

4h 55m1 stop Atlanta Hartsfield-Jackson

5:26 pm - 9:38 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

4h 12m1 stop Detroit Metropolitan Wayne County

$299Delta

Fri, Jan 15 - Tue, Jan 19

5:00 am - 9:10 amLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

4h 10m1 stop Charlotte Douglas

8:03 pm - 12:05 amIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

4h 02m1 stop Charlotte Douglas

$299American Airlines

Thu, Dec 3 - Thu, Dec 3

9:00 am - 1:35 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

4h 35m1 stop Chicago O'Hare Intl

6:10 am - 1:12 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

7h 02m1 stop Chicago O'Hare Intl

$449United Airlines

Wed, Nov 18 - Tue, Dec 22

11:05 am - 4:33 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

5h 28m1 stop Chicago O'Hare Intl

5:29 pm - 11:54 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

6h 25m1 stop Chicago O'Hare Intl

$469United Airlines

Fri, Nov 13 - Sun, Nov 15

1:50 pm - 7:28 amLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

17h 38m2 stops Chicago O'Hare Intl Buffalo

10:15 am - 5:30 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

7h 15m1 stop Chicago O'Hare Intl

$469United Airlines

Sat, Nov 21 - Sun, Nov 22

Cheap last minute flights

Enter your travel dates to find the best prices.

7:59 pm - 12:42 amLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

4h 43m1 stop Atlanta Hartsfield-Jackson

5:00 pm - 9:28 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

4h 28m1 stop Atlanta Hartsfield-Jackson

$509Delta

Mon, Nov 2 - Mon, Nov 9

5:44 am - 10:11 amLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

4h 27m1 stop Charlotte Douglas

10:46 am - 4:33 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

5h 47m1 stop Charlotte Douglas

$524American Airlines

Tue, Nov 3 - Wed, Dec 2

7:10 am - 2:09 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

6h 59m1 stop Atlanta Hartsfield-Jackson

7:37 pm - 11:58 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

4h 21m1 stop Atlanta Hartsfield-Jackson

$544Delta

Tue, Nov 3 - Fri, Nov 20

7:45 am - 11:34 amLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

3h 49m1 stop Detroit Metropolitan Wayne County

5:13 pm - 9:06 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

3h 53m1 stop Detroit Metropolitan Wayne County

$549Delta

Thu, Nov 5 - Sun, Nov 8

7:45 am - 11:34 amLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

3h 49m1 stop Detroit Metropolitan Wayne County

5:16 pm - 9:18 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

4h 02m1 stop Detroit Metropolitan Wayne County

$549Delta

Tue, Nov 3 - Mon, Nov 9

7:10 am - 11:52 amLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

4h 42m1 stop Chicago O'Hare Intl

1:15 pm - 7:10 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

5h 55m1 stop Chicago O'Hare Intl

$589United Airlines

Tue, Nov 3 - Tue, Nov 24

5:25 am - 11:55 amLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

6h 30m2 stops Chicago O'Hare Intl Buffalo

3:15 pm - 8:35 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

5h 20m1 stop Chicago O'Hare Intl

$787United Airlines

Wed, Nov 4 - Wed, Nov 4

11:05 am - 5:24 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

6h 19m1 stop Chicago O'Hare Intl

10:20 pm - 1:13 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

14h 53m2 stops Greater Rochester Intl Chicago O'Hare Intl

$823United Airlines

Tue, Nov 3 - Fri, Nov 6

4:47 pm - 10:59 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

6h 12m1 stop Charlotte Douglas

10:44 am - 4:15 pmIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

5h 31m1 stop Charlotte Douglas

$847American Airlines

Tue, Nov 3 - Wed, Nov 4

7:16 pm - 10:59 pmLEX Lexington Blue Grass-IAD Washington, D.C. Dulles Intl

3h 43m1 stop Charlotte Douglas

7:17 pm - 10:59 amIAD Washington, D.C. Dulles Intl-LEX Lexington Blue Grass

15h 42m2 stops Charlotte Douglas Chicago O'Hare Intl

$893American Airlines

Mon, Nov 2 - Mon, Nov 9

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United Airlines flights from Lexington to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Lexington to Washington, D.C. Dulles Intl Airport flight tickets

United Airlines

Nov 13

LEX11:05 amLexington Blue Grass

5h 28m

1 stop

IAD4:33 pmWashington, D.C. Dulles Intl

Nov 15

IAD5:29 pmWashington, D.C. Dulles Intl

6h 25m

1 stop

LEX11:54 pmLexington Blue Grass

$469

United Airlines

Jan 3

LEX5:50 pmLexington Blue Grass

6h 48m

1 stop

IAD12:38 amWashington, D.C. Dulles Intl

Jan 5

IAD8:15 amWashington, D.C. Dulles Intl

5h 00m

1 stop

LEX1:15 pmLexington Blue Grass

$527

United Airlines

Mar 5

LEX9:00 amLexington Blue Grass

4h 14m

1 stop

IAD1:14 pmWashington, D.C. Dulles Intl

Mar 9

IAD12:35 pmWashington, D.C. Dulles Intl

11h 17m

2 stops

LEX11:52 pmLexington Blue Grass

$536

American Airlines flights from Lexington to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Lexington to Washington, D.C. Dulles Intl Airport flight tickets

American Airlines

Dec 2

LEX5:03 pmLexington Blue Grass

3h 49m

1 stop

IAD8:52 pmWashington, D.C. Dulles Intl

Dec 5

IAD7:00 amWashington, D.C. Dulles Intl

11h 52m

2 stops

LEX6:52 pmLexington Blue Grass

$304

American Airlines

Dec 2

LEX5:08 amLexington Blue Grass

11h 26m

2 stops

IAD4:34 pmWashington, D.C. Dulles Intl

Dec 5

IAD7:00 amWashington, D.C. Dulles Intl

11h 52m

2 stops

LEX6:52 pmLexington Blue Grass

$309

American Airlines

Nov 30

LEX5:55 pmLexington Blue Grass

4h 06m

1 stop

IAD10:01 pmWashington, D.C. Dulles Intl

Dec 5

IAD7:14 pmWashington, D.C. Dulles Intl

4h 01m

1 stop

LEX11:15 pmLexington Blue Grass

$344

momondo Fare Finder

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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LexingtonWashington, D.C.

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

LEXIAD

Lexington Blue Grass

Thu 1/28

12:03 pm-10:02 pm

1 stop9h 59m

Washington, D.C. Dulles Intl

Sun 1/31

10:21 am-3:32 pm

1 stop29h 11m

$255

LexingtonWashington, D.C.

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

LEXIAD

Lexington Blue Grass

Wed 12/2

6:00 am-11:39 am

1 stop5h 39m

Washington, D.C. Dulles Intl

Sat 12/5

8:02 am-2:47 pm

1 stop6h 45m

$299

LexingtonWashington, D.C.

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

LEXIAD

Lexington Blue Grass

Thu 1/21

4:56 pm-9:10 pm

1 stop4h 14m

Washington, D.C. Dulles Intl

Sat 1/23

10:36 am-4:26 pm

1 stop5h 50m

$299

LexingtonWashington, D.C.

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

LEXIAD

Lexington Blue Grass

Thu 1/28

8:30 am-3:40 pm

1 stop7h 10m

Washington, D.C. Dulles Intl

Sun 1/31

4:13 pm-11:05 pm

1 stop6h 52m

$299

LexingtonWashington, D.C.

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

LEXIAD

Lexington Blue Grass

Wed 12/2

3:34 pm-8:11 pm

1 stop4h 37m

Washington, D.C. Dulles Intl

Thu 12/3

3:00 pm-7:12 pm

1 stop4h 12m

$299

LexingtonWashington, D.C.

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

LEXIAD

Lexington Blue Grass

Fri 1/15

1:10 pm-6:05 pm

1 stop4h 55m

Washington, D.C. Dulles Intl

Tue 1/19

5:26 pm-9:38 pm

1 stop4h 12m

$299

Quickest round-trip

LexingtonWashington, D.C.

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

LEXIAD

Lexington Blue Grass

Thu 12/3

5:00 am-9:10 am

1 stop4h 10m

Washington, D.C. Dulles Intl

Thu 12/3

8:03 pm-12:05 am

1 stop4h 02m

$299

LexingtonWashington, D.C.

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

LEXIAD

Lexington Blue Grass

Wed 11/18

9:00 am-1:35 pm

1 stop4h 35m

Washington, D.C. Dulles Intl

Tue 12/22

6:10 am-1:12 pm

1 stop7h 02m

$449

LexingtonWashington, D.C.

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

LEXIAD

Lexington Blue Grass

Fri 11/13

11:05 am-4:33 pm

1 stop5h 28m

Washington, D.C. Dulles Intl

Sun 11/15

5:29 pm-11:54 pm

1 stop6h 25m

$469

LexingtonWashington, D.C.

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

LEXIAD

Lexington Blue Grass

Sat 11/21

1:50 pm-7:28 am

2 stops17h 38m

Washington, D.C. Dulles Intl

Sun 11/22

10:15 am-5:30 pm

1 stop7h 15m

$469

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Lexington to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, September is the cheapest month to fly from Lexington to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of September, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $0.

How have Lexington to Washington, D.C. Dulles Intl Airport flight prices changed over time?

When to book flights from Lexington to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Lexington to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Lexington to Washington, D.C. Dulles Intl Airport (LEX to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lexington to Washington, D.C. Dulles Intl Airport

Best Price Found	$143
Fastest flight time	4h 43m
Direct flights	None

The best one-way flight to Washington, D.C. Dulles Intl Airport from Lexington in the past 72 hours is $143. The best round-trip flight deal from Lexington to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $255.

The fastest flight from Lexington to Washington, D.C. Dulles Intl Airport takes 4h 43m

There are no direct flights from Lexington to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Lexington to Washington, D.C. Dulles Intl Airport.

Search flight deals

Frequently asked questions about flying from Lexington to Washington, D.C. Dulles Intl Airport

How far is Lexington Blue Grass to Washington, D.C. Dulles Intl by plane?
Lexington Blue Grass and Washington, D.C. Dulles Intl are 386.2 mi apart from one another. Typically, this will take 4h 43m by plane in normal conditions.
When did momondo last update prices for flights from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport refresh daily.
How many operators does momondo search for flights from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport?
As of October 2026, there are 2 operators available to choose from for flights from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lexington Blue Grass Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Lexington to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for flights between Lexington and Washington, D.C. Dulles Intl Airport, the leading airline is Delta, making up 53% of the total bookings. Other popular airlines include United Airlines with 47%.

Best airlines flying from Lexington to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Lexington to Washington, D.C. Dulles Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $348	Free Cancellation	Rating 7.8 8,694 reviews		Search Delta flights
United Airlines	PriceFrom $374	Free Cancellation	Rating 7.3 10,453 reviews		Search United Airlines flights

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momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Lexington to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Lexington to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Lexington with this policy.

How can momondo help me find flights from Lexington to Washington, D.C.?

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Lexington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Lexington to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Lexington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Lexington to Washington, D.C. from $143

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lexington to Washington, D.C. departing on 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Lexington to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Lexington to Washington, D.C. Dulles Intl Airport flight tickets

American Airlines flights from Lexington to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Lexington to Washington, D.C. Dulles Intl Airport flight tickets

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Use the filters below to find and compare flights from Lexington to Washington, D.C. Dulles Intl Airport that are best for you.

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Lexington to Washington, D.C. Dulles Intl Airport

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

How have Lexington to Washington, D.C. Dulles Intl Airport flight prices changed over time?

What is the cheapest airline that flies from Lexington Blue Grass to Washington, D.C. Dulles Intl?

When to book flights from Lexington to Washington, D.C. Dulles Intl Airport

Cheap Lexington to Washington, D.C. Dulles Intl Airport (LEX to IAD) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Lexington to Washington, D.C. Dulles Intl Airport

Best airlines flying from Lexington to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Lexington to Washington, D.C. Dulles Intl Airport with momondo

Traveling to a place near Washington, D.C.?

Why use momondo?

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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