Cheap Flights from Bismarck (BIS) to Wilmington (ILG)

Popular airlines from Bismarck, ND (BIS-Bismarck Municipal) to Wilmington, DE (ILG-New Castle)

Cheap Flights from Bismarck to Wilmington (BIS-ILG)

Prices were available within the past 7 days and start at for one-way flights and $722 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Oct 7 - Sat, Oct 11
BIS
Bismarck
ILG
Wilmington
$722 Roundtrip, found 4 days ago
$722
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Sat, Oct 11, priced at $722 found 4 days ago
American Airlines
Tue, Oct 7 - Tue, Oct 14
BIS
Bismarck
ILG
Wilmington
$737 Roundtrip, found 4 days ago
$737
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Tue, Oct 14, priced at $737 found 4 days ago
American Airlines
Sat, Oct 4 - Thu, Oct 9
BIS
Bismarck
ILG
Wilmington
$756 Roundtrip, found 4 days ago
$756
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Oct 4 from Bismarck to Wilmington, returning Thu, Oct 9, priced at $756 found 4 days ago
American Airlines
Sun, Oct 5 - Sat, Oct 11
BIS
Bismarck
ILG
Wilmington
$759 Roundtrip, found 4 days ago
$759
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Oct 5 from Bismarck to Wilmington, returning Sat, Oct 11, priced at $759 found 4 days ago
American Airlines
Sun, Oct 5 - Tue, Oct 14
BIS
Bismarck
ILG
Wilmington
$774 Roundtrip, found 4 days ago
$774
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Oct 5 from Bismarck to Wilmington, returning Tue, Oct 14, priced at $774 found 4 days ago
American Airlines
Fri, Oct 3 - Thu, Oct 9
BIS
Bismarck
ILG
Wilmington
$793 Roundtrip, found 4 days ago
$793
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Oct 3 from Bismarck to Wilmington, returning Thu, Oct 9, priced at $793 found 4 days ago
American Airlines
Tue, Oct 7 - Tue, Oct 14
BIS
Bismarck
ILG
Wilmington
$800 Roundtrip, found 4 days ago
$800
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Tue, Oct 14, priced at $800 found 4 days ago
American Airlines
Tue, Oct 7 - Mon, Oct 13
BIS
Bismarck
ILG
Wilmington
$826 Roundtrip, found 4 days ago
$826
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Mon, Oct 13, priced at $826 found 4 days ago
American Airlines
Sun, Oct 5 - Tue, Oct 14
BIS
Bismarck
ILG
Wilmington
$837 Roundtrip, found 4 days ago
$837
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Oct 5 from Bismarck to Wilmington, returning Tue, Oct 14, priced at $837 found 4 days ago
American Airlines
Tue, Oct 7 - Sun, Oct 12
BIS
Bismarck
ILG
Wilmington
$859 Roundtrip, found 1 day ago
$859
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Sun, Oct 12, priced at $859 found 1 day ago
American Airlines
Sun, Oct 5 - Mon, Oct 13
BIS
Bismarck
ILG
Wilmington
$863 Roundtrip, found 4 days ago
$863
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Oct 5 from Bismarck to Wilmington, returning Mon, Oct 13, priced at $863 found 4 days ago
American Airlines
Thu, Oct 9 - Fri, Oct 10
BIS
Bismarck
ILG
Wilmington
$879 Roundtrip, found 4 days ago
$879
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Oct 9 from Bismarck to Wilmington, returning Fri, Oct 10, priced at $879 found 4 days ago
American Airlines
Tue, Oct 7 - Sun, Oct 12
BIS
Bismarck
ILG
Wilmington
$884 Roundtrip, found 16 hours ago
$884
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Sun, Oct 12, priced at $884 found 16 hours ago
American Airlines
Tue, Oct 7 - Sun, Oct 12
BIS
Bismarck
ILG
Wilmington
$907 Roundtrip, found 4 days ago
$907
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Sun, Oct 12, priced at $907 found 4 days ago
American Airlines
Mon, Oct 6 - Sat, Oct 11
BIS
Bismarck
ILG
Wilmington
$937 Roundtrip, found 4 days ago
$937
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Oct 6 from Bismarck to Wilmington, returning Sat, Oct 11, priced at $937 found 4 days ago
American Airlines
Mon, Oct 6 - Sat, Oct 11
BIS
Bismarck
ILG
Wilmington
$992 Roundtrip, found 4 days ago
$992
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Oct 6 from Bismarck to Wilmington, returning Sat, Oct 11, priced at $992 found 4 days ago
American Airlines
Tue, Oct 7 - Sun, Oct 12
BIS
Bismarck
ILG
Wilmington
$1,034 Roundtrip, found 1 day ago
$1,034
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Sun, Oct 12, priced at $1,034 found 1 day ago
American Airlines
Tue, Oct 7 - Sun, Oct 12
BIS
Bismarck
ILG
Wilmington
$1,048 Roundtrip, found 1 day ago
$1,048
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Sun, Oct 12, priced at $1,048 found 1 day ago
American Airlines
Tue, Oct 7 - Sun, Oct 12
BIS
Bismarck
ILG
Wilmington
$1,059 Roundtrip, found 16 hours ago
$1,059
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Sun, Oct 12, priced at $1,059 found 16 hours ago
American Airlines
Tue, Oct 7 - Sun, Oct 12
BIS
Bismarck
ILG
Wilmington
$1,068 Roundtrip, found 16 hours ago
$1,068
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Tue, Oct 7 from Bismarck to Wilmington, returning Sun, Oct 12, priced at $1,068 found 16 hours ago

Alternative airports near Wilmington

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

Select flight to Philadelphia Intl. PHL. Cheapest option available. Average driving time to city center is 28 minutes. Flights from $294
PHL
Philadelphia Intl.
Cheapest
Average driving time to city center28 min
Flights from $294
Flights from Bismarck (BIS) to Wilmington (ILG)
Origin airport
Bismarck Municipal
Destination airport
New Castle
Airlines serving
American Airlines
Roundtrip price
$722
Distance
1351 mi

Bismarck to Wilmington Flights

The cheapest times to fly from Bismarck 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 Bismarck to Wilmington are during the month of October. You can find some of the cheapest flights from Bismarck to Wilmington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Bismarck to Wilmington

Sunday is one of the best days to book for cheap flights from Bismarck 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 Bismarck 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 Bismarck to Wilmington in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Bismarck 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 Bismarck 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 Bismarck Municipal Airport (BIS) to Wilmington, DE (ILG-New Castle) cost?
Lock in a cheap one-way flight or cheap return flight from $722 from Bismarck Municipal Airport (BIS) to Wilmington, DE (ILG-New Castle) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Bismarck Municipal Airport (BIS) to Wilmington, DE (ILG-New Castle)?
Planning your trip for October is a great way to save, as it's the cheapest month for flights between BIS and ILG. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Bismarck Municipal Airport (BIS) to Wilmington, DE (ILG-New Castle)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest BIS to ILG flight.
How many flights per day from Bismarck Municipal Airport (BIS) to Wilmington, DE (ILG-New Castle)?
You'll have to hop on a flight with a layover if you're traveling from Bismarck Municipal Airport (BIS) to Wilmington, DE (ILG-New Castle). Direct flights don't operate daily 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 BIS to ILG?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can change depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Bismarck Municipal Airport (BIS) to Wilmington, DE (ILG-New Castle)?
Book a flight from Bismarck Municipal Airport (BIS) to Wilmington, DE (ILG-New Castle) that takes off before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be canceled.**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 Bismarck Municipal Airport (BIS) to Wilmington, DE (ILG-New Castle) last-minute?
Waiting until just before your trip to book your flight from BIS to ILG often results in higher prices. Although you may find some last-minute offers, they aren't always guaranteed. Keep your travel plans flexible to boost your chances of getting a bargain.
Can I cancel or change the date of my flight from Bismarck Municipal Airport (BIS) to Wilmington, DE (ILG-New Castle)?
In most instances, you're able to reschedule or cancel your BIS to ILG flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need further information, head to our Customer Service portal.

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*Available to One Key members.