HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lexington

$119+ Cheap flights from Dulles Intl (IAD) to Lexington (LEX)

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LEX
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Lexington with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Lexington

Cheapest flights from Dulles Intl to Lexington
Explore the most affordable flight options available from Dulles Intl to Lexington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

This Delta deal was found by Cheapflights users on 12/7. 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 12/1510:08 amIAD - LEX
1 stop6h 20mDelta
Sun 1/1110:36 amLEX - IAD
1 stop6h 10mDelta
Deal found 12/7$298
This Delta deal was found by Cheapflights users on 12/8. 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.
Thu 12/116:00 amIAD - LEX
1 stop3h 52mDelta
Mon 12/157:59 pmLEX - IAD
1 stop4h 13mDelta
Deal found 12/8$349
This Kiwi.com deal was found by Cheapflights users on 12/7. 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 12/115:21 pmIAD - LEX
1 stop17h 01mMultiple Airlines
Mon 12/159:02 pmLEX - IAD
2 stops41h 27mMultiple Airlines
Deal found 12/7$369
This Delta deal was found by Cheapflights users on 12/8. 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.
Sat 12/1312:30 pmIAD - LEX
1 stop4h 08mDelta
Sun 12/146:02 pmLEX - IAD
1 stop5h 06mDelta
Deal found 12/8$379
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/192:32 pmIAD - LEX
2 stops18h 09mAllegiant Air
Mon 12/223:37 pmLEX - IAD
1 stop19h 16mAllegiant Air
Deal found 12/9$394
This Delta deal was found by Cheapflights users on 12/9. 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.
Fri 12/127:35 pmIAD - LEX
1 stop4h 33mDelta
Tue 12/1610:13 amLEX - IAD
1 stop4h 27mDelta
Deal found 12/9$399
This Delta deal was found by Cheapflights users on 12/9. 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.
Fri 12/127:35 pmIAD - LEX
1 stop4h 33mDelta
Mon 12/155:15 pmLEX - IAD
1 stop4h 14mDelta
Deal found 12/9$429
This Delta deal was found by Cheapflights users on 12/7. 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 12/106:00 amIAD - LEX
1 stop3h 52mDelta
Mon 12/157:59 pmLEX - IAD
1 stop4h 13mDelta
Deal found 12/7$439
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Tue 12/238:15 pmIAD - LEX
2 stops23h 40mMultiple Airlines
Mon 12/299:02 pmLEX - IAD
1 stop24h 01mMultiple Airlines
Deal found 12/7$442
This Kiwi.com deal was found by Cheapflights users on 12/7. 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.
Mon 12/2210:43 amIAD - LEX
1 stop21h 46mMultiple Airlines
Mon 12/299:02 pmLEX - IAD
1 stop24h 01mMultiple Airlines
Deal found 12/7$452
This American Airlines deal was found by Cheapflights users on 12/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:35 amIAD - LEX
1 stop3h 55mAmerican Airlines
Thu 12/258:08 amLEX - IAD
1 stop5h 19mAmerican Airlines
Deal found 12/8$458
This American Airlines deal was found by Cheapflights users on 12/7. 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.
Wed 12/246:35 amIAD - LEX
2 stops33h 24mAmerican Airlines
Wed 12/316:03 pmLEX - IAD
1 stop3h 47mAmerican Airlines
Deal found 12/7$490

Find flight deals from Dulles Intl to Lexington

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Lexington (LEX). 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 December 9, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$199
(Delta)

One-way from

$119
(American Airlines)

Popular in

April

Cheapest in

December

Average price

$218
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Lexington Blue Grass flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Lexington Blue Grass flights.
Search Deals
From Washington, D.C. Dulles Intl to Lexington Blue Grass
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Lexington Blue Grass
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Lexington 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 December 9, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Lexington that are best for you.

Fly from

Dulles Intl

Fly to

Lexington

Route

Depart

Return

Price

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

Tue 1/13

3:00 pm-8:01 pm

1 stop5h 01m

Lexington Blue Grass

Sat 1/17

7:26 am-11:49 am

1 stop4h 23m

$199

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

Thu 1/8

6:00 am-9:59 am

1 stop3h 59m

Lexington Blue Grass

Mon 1/12

10:39 am-4:46 pm

1 stop6h 07m

$199

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

Tue 1/13

6:20 am-1:30 pm

1 stop7h 10m

Lexington Blue Grass

Mon 1/19

5:35 pm-11:06 pm

1 stop5h 31m

$199

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

Wed 1/14

6:20 am-1:30 pm

1 stop7h 10m

Lexington Blue Grass

Sat 1/17

10:36 am-4:46 pm

1 stop6h 10m

$199

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

Wed 1/14

9:00 am-1:30 pm

1 stop4h 30m

Lexington Blue Grass

Mon 1/19

5:35 pm-11:06 pm

1 stop5h 31m

$199

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

Wed 1/14

6:00 am-9:59 am

1 stop3h 59m

Lexington Blue Grass

Tue 1/20

5:35 pm-11:06 pm

1 stop5h 31m

$199

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

Thu 1/15

6:00 am-9:59 am

1 stop3h 59m

Lexington Blue Grass

Tue 1/20

5:35 pm-11:06 pm

1 stop5h 31m

$199

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

Thu 1/8

6:37 pm-2:11 pm

1 stop19h 34m

Lexington Blue Grass

Sun 1/11

9:41 pm-7:40 am

1 stop9h 59m

$212

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

Wed 1/14

6:00 am-9:59 am

1 stop3h 59m

Lexington Blue Grass

Thu 1/15

2:17 pm-8:37 pm

1 stop6h 20m

$237

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

Tue 1/13

12:29 pm-4:54 pm

1 stop4h 25m

Lexington Blue Grass

Wed 1/14

10:39 am-4:46 pm

1 stop6h 07m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 20 results
1
2

Compare providers for flights from Dulles Intl to Lexington

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Lexington in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Lexington flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Lexington flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Lexington flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Lexington flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Lexington flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Lexington

Have a flexible travel schedule? Discover the best time to fly to Lexington from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Lexington

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Lexington?

Currently, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Lexington (average of $135). Flying from Washington, D.C. Dulles Intl Airport to Lexington in December is currently the most expensive (average of $218). 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 IAD to LEX?

Find hourly flight availability from Dulles Intl to Lexington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 9, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Lexington in the morning. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing Lexington

Get insights into the airlines that provide service to Lexington. 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 Lexington. Reviews last updated December 9, 2025.
Get a feel of what it's like to fly with Delta and American Airlines from Washington, D.C. Dulles Intl Airport to Lexington by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,011 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,011 reviews
Delta
7.9
Good
8,011 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,045 reviews
Delta
7.9
Good
8,011 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Lexington. 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 into for flights to Lexington from Washington, D.C. Dulles Intl?

    Most people fly into Lexington Blue Grass (LEX) if they book a flight to Lexington from Washington, D.C. Dulles Intl. On average, Blue Grass has 0 inbound flights from Washington, D.C. Dulles Intl per day from 2 airlines. Lexington Blue Grass is conveniently located just 5.6 mi from Lexington’s city center.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Lexington?

    A quick flight from Washington, D.C. Dulles Intl Airport to Lexington can take about 5h 01m. Delta provides one of the quickest options available for as low as $199. There are 392 mi between Washington, D.C. Dulles Intl Airport and Lexington.

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

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Lexington round-trip from $218. Another airline that can offer you cheap pricing is American Airlines. Delta is currently priced 48% below the average price you’ll pay for this route.

  • Can I find deals for flights from Dulles Intl to Lexington that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Lexington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Lexington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Lexington.

  • Can I find deals for business class flights from Dulles Intl to Lexington?

    Yes. Cheapflights offers flight deals from Dulles Intl to Lexington 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 Washington, D.C. Dulles Intl Airport to Lexington?

    Currently, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Lexington (average of $135). Flying from Washington, D.C. Dulles Intl Airport to Lexington in December is currently the most expensive (average of $218). 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
Somerset
Berea
Georgetown
Frankfort

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Lexington

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Nashville flights
Baltimore to Nashville flights
Dulles Intl to Nashville flights
Dulles Intl to Cincinnati flights
Dulles Intl to Knoxville flights
Baltimore to Cincinnati flights
Reagan-National to Knoxville flights
Baltimore to Louisville flights
Reagan-National to Louisville flights
Baltimore to Knoxville flights
Dulles Intl to Louisville flights
Reagan-National to Cincinnati flights
Baltimore to Lexington flights
Reagan-National to Lexington flights
Reagan-National to Blountville flights
Baltimore to Blountville flights
Dulles Intl to Blountville flights
Reagan-National to Huntington flights
Baltimore to Huntington flights
Baltimore to Owensboro flights
Dulles Intl to Huntington flights
Baltimore to Evansville flights
Dulles Intl to Evansville flights
Dulles Intl to Paducah flights
Reagan-National to Paducah flights
Baltimore to Paducah flights
Reagan-National to Owensboro flights
Reagan-National to Evansville flights

Top 2 airlines flying from Dulles Intl to Lexington

Discover the top 2 airlines that operate flights from Dulles Intl to Lexington. 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 December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$378FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$238Average$308FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.