Cheap Frontier Airlines flights Denver (DEN) to Bismarck (BIS)

You’ll find affordable round-trip Frontier Airlines flights from DEN to BIS by sorting your results from “Price (lowest to highest)” on Expedia. Or look for deals for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for one-way or return flights to Bismarck in January or November. You could find lower fares with Frontier Airlines during these quieter months.

Search for affordable Frontier Airlines flights from Denver Intl. Airport (DEN) to Bismarck Municipal Airport (BIS) one to three months prior to your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and itinerary, the ideal day to book a domestic flight is usually Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Click on our “Nonstop” filter when looking for direct Frontier Airlines flights from DEN to BIS. It’s also an easy way to compare other airlines offering the same direct route.

Search Frontier Airlines’s earliest flights from DEN to BIS by checking the “Early Morning” and “Morning” filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Jump on a Frontier Airlines flight from Denver Intl. Airport (DEN) to Bismarck, and you’ll probably arrive at Bismarck Municipal Airport (BIS). This is the airline’s primary hub here.

With a rewarding loyalty program, Frontier Airlines is a top pick for many passengers departing from DEN to BIS. Plus, as a Frontier Miles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of booking, but your airline may charge a fee after that time. For further details about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to update your itinerary without being charged, tick the “Changes included” and “No cancel fee” filters when planning your next adventure.