$126 Cheap Flights from Bismarck (BIS) to Key West (EYW)

View $126 flight on Wed, Aug 6, 2025Opens in a new window

Popular airlines from Bismarck, ND (BIS-Bismarck Municipal) to Key West Intl. Airport (EYW)

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Cheap Flights from Bismarck to Key West (BIS-EYW)

Prices were available within the past 7 days and start at $126 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Jan 5 - Mon, Jan 12
BIS
Bismarck
EYW
Key West
$289 Roundtrip, found 2 days ago
$289
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Jan 5 from Bismarck to Key West, returning Mon, Jan 12, priced at $289 found 2 days ago
American Airlines
Sat, Aug 9 - Wed, Aug 13
BIS
Bismarck
EYW
Key West
$341 Roundtrip, found 11 hours ago
$341
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sat, Aug 9 from Bismarck to Key West, returning Wed, Aug 13, priced at $341 found 11 hours ago
American Airlines
Sat, Aug 9 - Thu, Aug 14
BIS
Bismarck
EYW
Key West
$360 Roundtrip, found 11 hours ago
$360
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sat, Aug 9 from Bismarck to Key West, returning Thu, Aug 14, priced at $360 found 11 hours ago
Delta
Tue, Aug 12 - Wed, Aug 20
BIS
Bismarck
EYW
Key West
$369 Roundtrip, found 2 hours ago
$369
Roundtrip
found 2 hours ago
Select Delta flight, departing Tue, Aug 12 from Bismarck to Key West, returning Wed, Aug 20, priced at $369 found 2 hours ago
American Airlines
Tue, Aug 12 - Tue, Aug 19
BIS
Bismarck
EYW
Key West
$380 Roundtrip, found 2 hours ago
$380
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Tue, Aug 12 from Bismarck to Key West, returning Tue, Aug 19, priced at $380 found 2 hours ago
American Airlines
Wed, Aug 6 - Mon, Aug 11
BIS
Bismarck
EYW
Key West
$390 Roundtrip, found 1 hour ago
$390
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Aug 6 from Bismarck to Key West, returning Mon, Aug 11, priced at $390 found 1 hour ago
American Airlines
Thu, Aug 7 - Wed, Aug 13
BIS
Bismarck
EYW
Key West
$390 Roundtrip, found 11 hours ago
$390
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Thu, Aug 7 from Bismarck to Key West, returning Wed, Aug 13, priced at $390 found 11 hours ago
American Airlines
Sun, Aug 10 - Wed, Aug 20
BIS
Bismarck
EYW
Key West
$399 Roundtrip, found 2 hours ago
$399
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sun, Aug 10 from Bismarck to Key West, returning Wed, Aug 20, priced at $399 found 2 hours ago
Delta
Fri, Aug 8 - Tue, Aug 12
BIS
Bismarck
EYW
Key West
$403 Roundtrip, found 11 hours ago
$403
Roundtrip
found 11 hours ago
Select Delta flight, departing Fri, Aug 8 from Bismarck to Key West, returning Tue, Aug 12, priced at $403 found 11 hours ago
United
Fri, Jul 25 - Tue, Jul 29
BIS
Bismarck
EYW
Key West
$604 Roundtrip, found 1 hour ago
$604
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Jul 25 from Bismarck to Key West, returning Tue, Jul 29, priced at $604 found 1 hour ago

Find the cheapest month to fly from Bismarck (BIS) to Key West (EYW)

January is typically the cheapest month to fly

From $288 - $878 per traveler.

Graph displaying average flight prices per month

Flights from Bismarck (BIS) to Key West (EYW)
Origin airport
Bismarck Municipal
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$288
Distance
1858 mi

Bismarck to Key West Flights

The cheapest times to fly from Bismarck to Key West

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 Key West are during the month of January. You can find some of the cheapest flights from Bismarck to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Bismarck to Key West

Sunday is one of the best days to book for cheap flights from Bismarck to Key West: 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 Key West

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 Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $126 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 Key West 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 Key West 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 Key West Intl. Airport (EYW) cost?
Discover the latest flight deals from BIS to EYW by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BIS to EYW?
The cheapest flights from BIS to EYW are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BIS to EYW?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BIS to EYW. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Bismarck Municipal Airport (BIS) to Key West Intl. Airport (EYW)?
There aren't any daily nonstop flights from Bismarck Municipal Airport (BIS) to Key West Intl. Airport (EYW). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from BIS to EYW?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can change based on the time of year, airline 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 Key West Intl. Airport (EYW)?
To avoid potential delays on the Bismarck Municipal Airport (BIS) to Key West Intl. Airport (EYW) route, fly before 3 PM. Flights after this time are 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 Key West Intl. Airport (EYW) last-minute?
Booking your ticket from BIS to EYW shortly before your journey is generally more expensive. However, if there's some wiggle room with your departure times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a BIS to EYW flight and hotel package?
You can save money by booking a BIS to EYW flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your preferred flights and accommodations, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Bismarck Municipal Airport (BIS) to Key West Intl. Airport (EYW)?
If you reserved your BIS to EYW flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

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*Available to One Key members.