$134 Cheap Flights from Bismarck (BIS) to Denver (DEN)

View $134 flight on Wed, Oct 1, 2025Opens in a new window

Popular airlines from Bismarck, ND (BIS-Bismarck Municipal) to Denver Intl. Airport (DEN)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Bismarck to Denver (BIS-DEN)

Prices were available within the past 7 days and start at $134 for one-way flights and $209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Sep 25 - Sat, Sep 27
BIS
Bismarck
DEN
Denver
$209 Roundtrip, found 4 hours ago
$209
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Sep 25 from Bismarck to Denver, returning Sat, Sep 27, priced at $209 found 4 hours ago
United
Tue, Sep 9 - Sun, Sep 14
BIS
Bismarck
DEN
Denver
$219 Roundtrip, found 17 hours ago
$219
Roundtrip
found 17 hours ago
Select United flight, departing Tue, Sep 9 from Bismarck to Denver, returning Sun, Sep 14, priced at $219 found 17 hours ago
Delta
Fri, Dec 5 - Mon, Dec 8
BIS
Bismarck
DEN
Denver
$229 Roundtrip, found 2 hours ago
$229
Roundtrip
found 2 hours ago
Select Delta flight, departing Fri, Dec 5 from Bismarck to Denver, returning Mon, Dec 8, priced at $229 found 2 hours ago
United
Fri, Sep 5 - Mon, Sep 8
BIS
Bismarck
DEN
Denver
$229 Roundtrip, found 22 hours ago
$229
Roundtrip
found 22 hours ago
Select United flight, departing Fri, Sep 5 from Bismarck to Denver, returning Mon, Sep 8, priced at $229 found 22 hours ago
United
Sat, Nov 15 - Mon, Nov 17
BIS
Bismarck
DEN
Denver
$238 Roundtrip, found 1 day ago
$238
Roundtrip
found 1 day ago
Select United flight, departing Sat, Nov 15 from Bismarck to Denver, returning Mon, Nov 17, priced at $238 found 1 day ago
United
Thu, Oct 9 - Sat, Oct 11
BIS
Bismarck
DEN
Denver
$244 Roundtrip, found 1 hour ago
$244
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Oct 9 from Bismarck to Denver, returning Sat, Oct 11, priced at $244 found 1 hour ago
Delta
Sun, Nov 2 - Sat, Nov 8
BIS
Bismarck
DEN
Denver
$249 Roundtrip, found 9 hours ago
$249
Roundtrip
found 9 hours ago
Select Delta flight, departing Sun, Nov 2 from Bismarck to Denver, returning Sat, Nov 8, priced at $249 found 9 hours ago
United
Sun, Aug 31 - Wed, Sep 10
BIS
Bismarck
DEN
Denver
$249 Roundtrip, found 3 days ago
$249
Roundtrip
found 3 days ago
Select United flight, departing Sun, Aug 31 from Bismarck to Denver, returning Wed, Sep 10, priced at $249 found 3 days ago
United
Wed, Sep 10 - Mon, Sep 15
BIS
Bismarck
DEN
Denver
$254 Roundtrip, just found
$254
Roundtrip
just found
Select United flight, departing Wed, Sep 10 from Bismarck to Denver, returning Mon, Sep 15, priced at $254 just found
American Airlines
Fri, Oct 31 - Tue, Nov 4
BIS
Bismarck
DEN
Denver
$614 Roundtrip, found 1 day ago
$614
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Oct 31 from Bismarck to Denver, returning Tue, Nov 4, priced at $614 found 1 day ago

Find the cheapest month to fly from Bismarck (BIS) to Denver (DEN)

July is typically the cheapest month to fly

From $209 - $447 per traveler.

Graph displaying average flight prices per month

Alternative airports near Denver

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

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $269
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $269
Flights from Bismarck (BIS) to Denver (DEN)
Origin airport
Bismarck Municipal
Destination airport
Denver Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$209
Distance
517 mi
Average flight time
1 hour 1 min

Bismarck to Denver Flights

The cheapest times to fly from Bismarck to Denver

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

 

The best time to book a flight from Bismarck to Denver

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

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 Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $134 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 Denver 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 Denver 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 Denver Intl. Airport (DEN) cost?
Snag a cheap one-way flight from $134 or cheap return flight from $209 from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN)?
September is the least expensive month to fly from BIS to DEN. Timing your trip outside of the busy season is often the key to landing a great deal.
Which airlines fly direct from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN)?
Take a direct flight with United Airlines and go straight from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN).
What is the cheapest airline that flies from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from BIS to DEN. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN)?
Every day, an average of 4 direct flights take off from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN). Select the departure time that best fits your itinerary.
What are the most popular departure times for flights from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN)?
More travelers fly between BIS and DEN at 5 AM than at any other point in the day. Rather go when it's quieter? Consider flying outside peak hours and it's possible you'll save on your ticket as well.
What day of the week has the most flights from BIS to DEN?
Saturday offers the most flights from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN). Consider leaving on this day and you'll have a greater chance of finding a departure that fits your plans.
What is the earliest flight from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN)?
The earliest flight leaving Bismarck Municipal Airport (BIS) is at around 5:45AM UTC-6. Board this plane and you'll arrive at Denver Intl. Airport (DEN) at approximately 7:03AM UTC-7. The total travel time is 2h 18m.
How long does it take to fly from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN)?
The average flight duration from BIS to DEN is 2 hours and 10 minutes, covering a distance of 520 mi.
What airline has the least delays from BIS to DEN?
Frontier Airlines has the best track record for on-time direct flights from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN), with an on-time rating of 100%. Use the Expedia App to check your flight status before you take off and receive notifications about any changes.
What is the best time to fly from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN)?
To avoid possible delays on the Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN) route, fly before 3 PM. Later departures have a 22% higher chance of being 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.
What airports do you fly into for Denver from Bismarck Municipal Airport (BIS)?
Denver Intl. Airport (DEN) is the only airport in Denver with direct flights from Bismarck Municipal Airport (BIS). Check out your options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN) last-minute?
Booking your plane ticket from BIS to DEN shortly before your getaway is generally more expensive. But if there's some wiggle room with your travel dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a BIS to DEN flight and hotel package?
Opting for a BIS to DEN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our extensive range of accommodations and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Bismarck Municipal Airport (BIS) to Denver Intl. Airport (DEN)?
In most instances, you can reschedule or cancel your BIS to DEN flight. However, there may be additional charges, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you'd like more information, visit our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.