$190 Cheap Flights from Washington (IAD) to Wilmington (ILM)

View $190 flight on Sat, Sep 6, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Wilmington Intl. Airport (ILM)

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Cheap Flights from Washington to Wilmington (IAD-ILM)

Prices were available within the past 7 days and start at $190 for one-way flights and $281 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Sep 23 - Tue, Sep 30
IAD
Washington
ILM
Wilmington
$281 Roundtrip, found 7 hours ago
$281
Roundtrip
found 7 hours ago
Select Delta flight, departing Tue, Sep 23 from Washington to Wilmington, returning Tue, Sep 30, priced at $281 found 7 hours ago
Delta
Sat, Aug 30 - Thu, Sep 4
IAD
Washington
ILM
Wilmington
$293 Roundtrip, found 4 days ago
$293
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Aug 30 from Washington to Wilmington, returning Thu, Sep 4, priced at $293 found 4 days ago
Delta
Mon, Sep 22 - Tue, Sep 30
IAD
Washington
ILM
Wilmington
$301 Roundtrip, found 7 hours ago
$301
Roundtrip
found 7 hours ago
Select Delta flight, departing Mon, Sep 22 from Washington to Wilmington, returning Tue, Sep 30, priced at $301 found 7 hours ago
Delta
Mon, Oct 20 - Tue, Nov 4
IAD
Washington
ILM
Wilmington
$313 Roundtrip, found 1 day ago
$313
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Oct 20 from Washington to Wilmington, returning Tue, Nov 4, priced at $313 found 1 day ago
Delta
Mon, Aug 25 - Thu, Sep 4
IAD
Washington
ILM
Wilmington
$318 Roundtrip, found 6 days ago
$318
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Aug 25 from Washington to Wilmington, returning Thu, Sep 4, priced at $318 found 6 days ago
American Airlines
Fri, Sep 26 - Mon, Sep 29
IAD
Washington
ILM
Wilmington
$321 Roundtrip, found 2 hours ago
$321
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Sep 26 from Washington to Wilmington, returning Mon, Sep 29, priced at $321 found 2 hours ago
Delta
Tue, Oct 14 - Wed, Oct 22
IAD
Washington
ILM
Wilmington
$323 Roundtrip, found 5 days ago
$323
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Oct 14 from Washington to Wilmington, returning Wed, Oct 22, priced at $323 found 5 days ago
Delta
Sat, Sep 13 - Wed, Sep 17
IAD
Washington
ILM
Wilmington
$337 Roundtrip, found 12 hours ago
$337
Roundtrip
found 12 hours ago
Select Delta flight, departing Sat, Sep 13 from Washington to Wilmington, returning Wed, Sep 17, priced at $337 found 12 hours ago
American Airlines
Sat, Sep 13 - Wed, Sep 17
IAD
Washington
ILM
Wilmington
$341 Roundtrip, found 12 hours ago
$341
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Sat, Sep 13 from Washington to Wilmington, returning Wed, Sep 17, priced at $341 found 12 hours ago
United
Mon, Dec 22 - Mon, Jan 5
IAD
Washington
ILM
Wilmington
$427 Roundtrip, found 1 day ago
$427
Roundtrip
found 1 day ago
Select United flight, departing Mon, Dec 22 from Washington to Wilmington, returning Mon, Jan 5, priced at $427 found 1 day ago

Find the cheapest month to fly from Washington (IAD) to Wilmington (ILM)

August is typically the cheapest month to fly

From $70 - $606 per traveler.

Graph displaying average flight prices per month

Alternative airports near Wilmington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Wilmington Intl. ILM. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $413
ILM
Wilmington Intl.
CheapestClosest
Average driving time to city center7 min
Flights from $413
Flights from Washington (IAD) to Wilmington (ILM)
Origin airport
Washington Dulles Intl.
Destination airport
Wilmington Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$280
Distance
324 mi
Average flight time
1 hour 20 mins

Washington to Wilmington Flights

The cheapest times to fly from Washington to Wilmington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Wilmington are during the month of September. You can find some of the cheapest flights from Washington to Wilmington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Wilmington

Sunday is one of the best days to book for cheap flights from Washington to Wilmington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Wilmington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Wilmington in 2025. You can also book with separate airlines for your outbound and return journeys, from $190 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Wilmington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Wilmington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Wilmington Intl. Airport (ILM) cost?
You can score affordable return tickets from Washington Dulles Intl. Airport (IAD) to Wilmington Intl. Airport (ILM) starting from $74. Grab a seat and take off on your trip. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Avelo Airlines flight leaving IAD on August 15 2025 and touching down at ILM. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from IAD to ILM?
The cheapest flights from IAD to ILM are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Wilmington Intl. Airport (ILM)?
Direct flights aren't available from Washington, DC (IAD-Washington Dulles Intl.) to Wilmington Intl. Airport (ILM). However, you can find other airports with nonstop flights. Hop on your plane at Ronald Reagan Washington National Airport (DCA) and fly straight to Wilmington without a layover.
What is the cheapest airline that flies from IAD to ILM?
Right now, the cheapest airline offering one-way flights from IAD to ILM is Avelo Airlines. You can jet off on this route from $37. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAD on September 18 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Wilmington Intl. Airport (ILM)?
You'll need to catch a flight with a layover if you're traveling from Washington Dulles Intl. Airport (IAD) to Wilmington Intl. Airport (ILM). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from IAD to ILM?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from IAD to ILM?
United Airlines has the best performance for on-time direct flights from Washington Dulles Intl. Airport (IAD) to Wilmington Intl. Airport (ILM), with an on-time score of 86%. Use the Expedia App to view your flight status before you leave and get real-time alerts about any changes.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Wilmington Intl. Airport (ILM)?
To land at Wilmington Intl. Airport (ILM) on time, pick a flight that leaves Washington Dulles Intl. Airport (IAD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Wilmington Intl. Airport (ILM) last-minute?
Last-minute bookings from IAD to ILM are typically more expensive. To secure the best prices, start looking for flights ahead of time. That being said, if you're flexible with your travel plans, it's possible to score a cheap fare right before your trip.
Is it cheaper to book an IAD to ILM flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to ILM flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place will take the hassle out of planning your trip. Just pick your flights and choose from our extensive range of hotels, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Wilmington Intl. Airport (ILM)?
Typically, you can cancel or modify your IAD to ILM flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more information, head to our Customer Service portal.

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