Title: Cheap Flights from Washington to Lexington (IAD to LEX) - Expedia.co.uk ![Lexington featuring a city and a sunset](https://images.trvl-media.com/place/603003/a19134ad-4786-4590-8d51-7e58ddb58bd5.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Jeff Rogers /Lexington Convention and Visitors Bureau ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Washington (IAD) to Lexington (LEX) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Washington Dulles International Airport (IAD) to Blue Grass Airport (LEX) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:iad,to:lex,departure:10/10/2025TANYT&leg2=from:lex,to:iad,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:iad,to:lex,departure:10/10/2025TANYT&leg2=from:lex,to:iad,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:iad,to:lex,departure:10/10/2025TANYT&leg2=from:lex,to:iad,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Find the cheapest month to fly from Washington (IAD) to Lexington (LEX) ### August is typically the cheapest month to fly From £132 - £382 per traveller. Flight from Washington to Lexington route information | Origin airport | Washington Dulles Intl. | | --- | --- | | Destination airport | Blue Grass | | Distance | 626 km | ## Compare flights from Washington to Lexington easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Lexington. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Blue Grass in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Washington Dulles Intl. to Blue Grass.   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Washington Dulles Intl. (IAD) to Blue Grass (LEX) The easiest way to view the best deals on flights from Washington to Lexington today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Washington Dulles Intl. to Blue Grass start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Washington and Lexington - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Washington to Lexington flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Washington Dulles Intl. to Blue Grass for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Frequently asked questions ### How much is a flight from IAD to Blue Grass Airport (LEX)? > Pack your bags, because round-trip flights from IAD to LEX start from . That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book today to get the best deal. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to Blue Grass Airport (LEX)? > This can vary from airline to airline, as each one has its own terms and conditions. Head to the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033), where you'll find easy instructions on how to cancel online. ### How do I find cheap flights from Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX) that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Washington Dulles Intl. Airport (IAD) to Blue Grass Airport (LEX) flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Dulles Intl. Airport to Blue Grass Airport (LEX)? > That movie you've been eager to see will have to wait — the flight distance between IAD and LEX is only 630 kilometres. The captain will be instructing you to put your seat upright for landing before you know it. ### Which airlines fly direct from IAD to LEX? > Operating 17 flights monthly, United Airlines (UA) is a popular choice when flying straight from Dulles Intl. Airport to Blue Grass Airport (LEX). ### Are Washington Dulles Intl. Airport (IAD) to Blue Grass Airport flight tickets cheaper when they're purchased at the last minute? > Last-minute bookings from IAD to Blue Grass Airport (LEX) can be hit-or-miss. You may be able to score a great bargain, but then again, you could miss out entirely! If you'd prefer to start planning ahead of time, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines list their prices that far in advance. Our top tip? 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