HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lexington

$109+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LEX
jul. 7 — jul. 141
lun. 7/7
lun. 7/14
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

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 julio 2, 2025.

Round-trip from

$179
(American Airlines)

One-way from

$109
(American Airlines)

Popular in

April

Cheapest in

August

Average price

$393
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. 10% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find 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 julio 2, 2025.

This American Airlines deal was found by Cheapflights users on 7/2. 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.
jue. 8/141:18 pmIAD - LEX
1 stop6h 28mAmerican Airlines
jue. 8/218:17 pmLEX - IAD
1 stop3h 42mAmerican Airlines
Deal found 7/2$179
This Delta deal was found by Cheapflights users on 7/2. 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.
dom. 8/106:00 amIAD - LEX
1 stop3h 44mDelta
jue. 8/147:51 pmLEX - IAD
1 stop4h 30mDelta
Deal found 7/2$257
This Mytrip deal was found by Cheapflights users on 7/1. 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.
sáb. 7/122:40 pmIAD - LEX
1 stop7h 10mAllegiant Air
mié. 7/169:17 pmLEX - IAD
1 stop11h 18mAllegiant Air
Deal found 7/1$259
This Mytrip deal was found by Cheapflights users on 7/1. 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.
sáb. 7/129:43 pmIAD - LEX
2 stops21h 01mMultiple Airlines
mié. 7/169:17 pmLEX - IAD
1 stop11h 18mMultiple Airlines
Deal found 7/1$298
This United Airlines deal was found by Cheapflights users on 7/2. 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.
dom. 7/135:13 pmIAD - LEX
1 stop6h 31mUnited Airlines
dom. 7/205:44 pmLEX - IAD
1 stop6h 46mUnited Airlines
Deal found 7/2$419

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 julio 2, 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

jue. 8/14

1:18 pm-7:46 pm

1 stop6h 28m

Lexington Blue Grass

jue. 8/21

8:17 pm-11:59 pm

1 stop3h 42m

$179

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

dom. 8/10

6:00 am-9:44 am

1 stop3h 44m

Lexington Blue Grass

jue. 8/14

7:51 pm-12:21 am

1 stop4h 30m

$257

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

sáb. 7/12

2:40 pm-9:50 pm

1 stop7h 10m

Lexington Blue Grass

mié. 7/16

9:17 pm-8:35 am

1 stop11h 18m

$259

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

sáb. 7/12

9:43 pm-6:44 pm

2 stops21h 01m

Lexington Blue Grass

mié. 7/16

9:17 pm-8:35 am

1 stop11h 18m

$298

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

dom. 7/13

5:13 pm-11:44 pm

1 stop6h 31m

Lexington Blue Grass

dom. 7/20

5:44 pm-12:30 am

1 stop6h 46m

$419

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

lun. 8/11

4:36 pm-11:00 pm

1 stop6h 24m

$109

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

mar. 7/15

6:00 am-9:44 am

1 stop3h 44m

$189

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

jue. 7/17

6:05 am-9:53 pm

2 stops15h 48m

$224

Washington, D.C.Lexington

IAD - LEX

IADLEX

Washington, D.C. Dulles Intl

lun. 9/29

10:20 pm-1:34 pm

2 stops15h 14m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Lexington (average of $303). Flying from Washington, D.C. Dulles Intl Airport to Lexington in April is currently the most expensive (average of $390). 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 julio 2, 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 27% 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 julio 2, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, 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
8.0
Very good
7,983 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

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
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

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
8,861 reviews
Delta
8.0
Very good
7,983 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

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
7,983 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

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
7.2
Good
709 reviews
Delta
8.0
Very good
7,983 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

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 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.

  • 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 $179. Other airlines that can offer you cheap pricing are Delta, from $257, and Allegiant Air, from $272. American Airlines is currently priced 61% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Lexington one-way?

    One-way options have recently been found by users for as low as $109 on American Airlines. Other airlines that offer cheap prices include Allegiant Air from $141 and Delta from $189 one-way.

  • 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, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Lexington (average of $303). Flying from Washington, D.C. Dulles Intl Airport to Lexington in April is currently the most expensive (average of $390). 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
Georgetown
Danville
Berea

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.
Dulles Intl to Nashville flights
Baltimore to Nashville flights
Reagan-National to Nashville flights
Baltimore to Cincinnati flights
Dulles Intl to Cincinnati flights
Reagan-National to Cincinnati flights
Dulles Intl to Knoxville flights
Dulles Intl to Louisville flights
Reagan-National to Knoxville flights
Baltimore to Knoxville flights
Baltimore to Louisville flights
Reagan-National to Louisville flights
Baltimore to Lexington flights
Reagan-National to Lexington flights
Dulles Intl to Blountville flights
Reagan-National to Blountville flights
Dulles Intl to Evansville flights
Baltimore to Blountville flights
Reagan-National to Evansville flights
Baltimore to Owensboro flights
Baltimore to Evansville flights
Dulles Intl to Huntington flights
Baltimore to Huntington flights
Baltimore to Paducah flights
Reagan-National to Owensboro flights
Reagan-National to Huntington flights
Dulles Intl to Paducah flights
Reagan-National to Paducah 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 julio 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$277Average$498FlexibilityNo cancel feeOn-time71%
DeltaCheapest$278Average$378FlexibilityNo cancel feeOn-timeN/A

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.