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

Delta is the most popular carrier operating from Lexington Blue Grass to Washington, D.C. Dulles Intl

What airlines fly to Washington, D.C. Dulles Intl Airport?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Lexington according to our data. United Airlines is the first choice among our users, with 94% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 3 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

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 July 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.

$144 Cheap Flights from Lexington to Washington, D.C. Dulles Intl Airport in 2026

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.

11:41 am - 2:02 pm

LEX

IAD

26h 21m

2 stops

9:16 pm - 10:06 am

IAD

LEX

12h 50m

1 stop

$307Allegiant Air

Fri, Aug 7 - Thu, Aug 13

10:39 am - 4:30 pm

LEX

IAD

5h 51m

1 stop

10:15 am - 2:46 pm

IAD

LEX

4h 31m

1 stop

$319Delta

Wed, Sep 9 - Sun, Sep 13

5:23 am - 5:31 pm

LEX

IAD

12h 08m

2 stops

6:32 am - 10:32 am

IAD

LEX

4h 00m

1 stop

$324American Airlines

Wed, Sep 9 - Sun, Sep 13

6:24 am - 5:04 pm

LEX

IAD

10h 40m

2 stops

1:23 pm - 11:46 pm

IAD

LEX

10h 23m

2 stops

$329American Airlines

Wed, Aug 5 - Wed, Aug 12

8:10 pm - 12:14 am

LEX

IAD

4h 04m

1 stop

6:17 am - 10:11 am

IAD

LEX

3h 54m

1 stop

$339American Airlines

Sat, Aug 1 - Sat, Aug 8

5:00 am - 8:49 am

LEX

IAD

3h 49m

1 stop

1:23 pm - 11:46 pm

IAD

LEX

10h 23m

2 stops

$344American Airlines

Sat, Aug 1 - Sat, Aug 8

11:22 am - 7:36 pm

LEX

IAD

8h 14m

2 stops

7:57 am - 6:25 pm

IAD

LEX

10h 28m

2 stops

$349American Airlines

Sat, Aug 1 - Sat, Aug 8

6:12 pm - 11:26 pm

LEX

IAD

5h 14m

1 stop

6:00 am - 12:11 pm

IAD

LEX

6h 11m

1 stop

$359Delta

Fri, Sep 4 - Mon, Sep 7

8:10 pm - 12:10 am

LEX

IAD

4h 00m

1 stop

9:20 am - 6:38 pm

IAD

LEX

9h 18m

2 stops

$364American Airlines

Mon, Jul 27 - Sat, Aug 1

5:29 am - 12:51 pm

LEX

IAD

7h 22m

2 stops

1:58 pm - 11:49 pm

IAD

LEX

9h 51m

2 stops

$369American Airlines

Sat, Oct 31 - Tue, Nov 3

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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

Oct 22

LEX9:00 amLexington Blue Grass

7h 01m

1 stop

IAD4:01 pmWashington, D.C. Dulles Intl

Oct 24

IAD8:20 amWashington, D.C. Dulles Intl

5h 01m

1 stop

LEX1:21 pmLexington Blue Grass

$440

United Airlines

Nov 4

LEX7:10 amLexington Blue Grass

6h 35m

1 stop

IAD1:45 pmWashington, D.C. Dulles Intl

Nov 4

IAD5:28 pmWashington, D.C. Dulles Intl

6h 14m

1 stop

LEX11:42 pmLexington Blue Grass

$451

United Airlines

Aug 5

LEX1:55 pmLexington Blue Grass

21h 32m

2 stops

IAD11:27 amWashington, D.C. Dulles Intl

Aug 8

IAD8:15 amWashington, D.C. Dulles Intl

5h 05m

1 stop

LEX1:20 pmLexington Blue Grass

$496

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

Sep 9

LEX5:23 amLexington Blue Grass

12h 08m

2 stops

IAD5:31 pmWashington, D.C. Dulles Intl

Sep 13

IAD6:32 amWashington, D.C. Dulles Intl

4h 00m

1 stop

LEX10:32 amLexington Blue Grass

$324

American Airlines

Aug 5

LEX6:24 amLexington Blue Grass

10h 40m

2 stops

IAD5:04 pmWashington, D.C. Dulles Intl

Aug 12

IAD1:23 pmWashington, D.C. Dulles Intl

10h 23m

2 stops

LEX11:46 pmLexington Blue Grass

$329

American Airlines

Aug 1

LEX8:10 pmLexington Blue Grass

4h 04m

1 stop

IAD12:14 amWashington, D.C. Dulles Intl

Aug 8

IAD6:17 amWashington, D.C. Dulles Intl

3h 54m

1 stop

LEX10:11 amLexington Blue Grass

$339

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 - IAD

LEXIAD

Lexington Blue Grass

Fri 8/7

11:41 am-2:02 pm

2 stops26h 21m

Washington, D.C. Dulles Intl

Thu 8/13

9:16 pm-10:06 am

1 stop12h 50m

$307

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Wed 9/9

10:39 am-4:30 pm

1 stop5h 51m

Washington, D.C. Dulles Intl

Sun 9/13

10:15 am-2:46 pm

1 stop4h 31m

$319

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Wed 9/9

5:23 am-5:31 pm

2 stops12h 08m

Washington, D.C. Dulles Intl

Sun 9/13

6:32 am-10:32 am

1 stop4h 00m

$324

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Wed 8/5

6:24 am-5:04 pm

2 stops10h 40m

Washington, D.C. Dulles Intl

Wed 8/12

1:23 pm-11:46 pm

2 stops10h 23m

$329

Quickest round-trip

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Sat 8/1

8:10 pm-12:14 am

1 stop4h 04m

Washington, D.C. Dulles Intl

Sat 8/8

6:17 am-10:11 am

1 stop3h 54m

$339

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Sat 8/1

5:00 am-8:49 am

1 stop3h 49m

Washington, D.C. Dulles Intl

Sat 8/8

1:23 pm-11:46 pm

2 stops10h 23m

$344

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Sat 8/1

11:22 am-7:36 pm

2 stops8h 14m

Washington, D.C. Dulles Intl

Sat 8/8

7:57 am-6:25 pm

2 stops10h 28m

$349

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Fri 9/4

6:12 pm-11:26 pm

1 stop5h 14m

Washington, D.C. Dulles Intl

Mon 9/7

6:00 am-12:11 pm

1 stop6h 11m

$359

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Mon 7/27

8:10 pm-12:10 am

1 stop4h 00m

Washington, D.C. Dulles Intl

Sat 8/1

9:20 am-6:38 pm

2 stops9h 18m

$364

LexingtonWashington, D.C.

LEX - IAD

LEXIAD

Lexington Blue Grass

Sat 10/31

5:29 am-12:51 pm

2 stops7h 22m

Washington, D.C. Dulles Intl

Tue 11/3

1:58 pm-11:49 pm

2 stops9h 51m

$369

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

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

Fastest flight time	4h 32m
Direct flights	None

The fastest flight from Lexington to Washington, D.C. Dulles Intl Airport takes 4h 32m

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.

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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 32m 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 July 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 54% of the total bookings. Other popular airlines include American Airlines with 46%.

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 $159	Free Cancellation	Rating 7.8 8,453 reviews		Search Delta flights
American Airlines	PriceFrom $188	Free Cancellation	Rating 7.1 11,789 reviews		Search American Airlines flights

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Laurel

Woodbridge

Fredericksburg

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Why should I use momondo to find a flight deal from Lexington to Washington, D.C.?

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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 $144

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 8/16. 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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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Lexington 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?

What airlines fly to Washington, D.C. Dulles Intl Airport?

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

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

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

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