Title: Cheap Flights from Wilmington to Washington (ILM to IAD) - Expedia.co.uk ![Chantilly, France - December 2013: The chateau at Chantilly](https://images.trvl-media.com/place/8638/8a4635fc-37fb-4de8-b687-777b12acac2c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/8638/8a4635fc-37fb-4de8-b687-777b12acac2c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Wilmington (ILM) to Washington (IAD) - [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 Wilmington Intl. Airport (ILM) to Washington Dulles International Airport (IAD) - ![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:ilm,to:iad,departure:05/10/2025TANYT&leg2=from:iad,to:ilm,departure:12/10/2025TANYT&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:ilm,to:iad,departure:05/10/2025TANYT&leg2=from:iad,to:ilm,departure:12/10/2025TANYT&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:ilm,to:iad,departure:05/10/2025TANYT&leg2=from:iad,to:ilm,departure:12/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 25% on select hotels after you book a flight\* - ### 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 Wilmington (ILM) to Washington (IAD) ### September is typically the cheapest month to fly From £52 - £484 per traveller. Flight from Wilmington to Washington route information | Origin airport | Wilmington Intl. | | --- | --- | | Destination airport | Washington Dulles Intl. | | Distance | 519 km | ## Compare flights from Wilmington to Washington easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Wilmington to Washington. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Washington Dulles Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Wilmington Intl. to Washington Dulles Intl..   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 Wilmington Intl. (ILM) to Washington Dulles Intl. (IAD) The easiest way to view the best deals on flights from Wilmington to Washington 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 Wilmington Intl. to Washington Dulles Intl. 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 Wilmington and Washington - 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 Wilmington to Washington flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Wilmington Intl. to Washington Dulles Intl. 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 Wilmington Intl. Airport to Dulles Intl. Airport? > The lowest price advertised for a round-trip flight between Wilmington Intl. Airport (ILM) and Washington Dulles Intl. Airport (IAD) is . But you better get a move on. This price is based on fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Wilmington Intl. Airport to IAD? > This varies between air carriers, as each one has its own set of terms and conditions. Visit the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033), where there are easy-to-follow instructions on how to cancel your flight online. ### How do I find cheap flights from Wilmington Intl. Airport to IAD 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 Wilmington Intl. Airport (ILM) to IAD flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Wilmington Intl. Airport (ILM) to IAD? > That new movie you've been wanting to see will have to wait — the flight distance between Wilmington Intl. Airport (ILM) and IAD is only 520 kilometres. The captain will be asking you to put your seat upright for landing before you know it. ### Which airlines fly direct from Wilmington Intl. Airport (ILM) to Washington Dulles Intl. Airport (IAD)? > At the moment, no airlines offer direct flights from Wilmington Intl. Airport (ILM) to Dulles Intl. Airport. You'll have to book a flight with one or more stops. To score the best price and connections, lock in your airfare well ahead of time. ### Are Wilmington Intl. Airport (ILM) to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute? > It is possible to find an awesome last-minute deal from Wilmington Intl. Airport (ILM) to Dulles Intl. Airport, but there's no guarantee. As many airlines publish prices up to 12 months in advance, it's worth keeping an eye on fares early and being ready to pounce when you see a good bargain. 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