Cheap Flights from BIL to DEN: When to Fly from Billings to Denver

The cheapest times to fly from BIL to DEN are

• January 1st to March 4th
• August 6th to March 4th (except the weeks of November 19th, November 26th, December 17th, and December 24th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from BIL to DEN is late January and early February. Prices can be as high as $670 for Monday flights during early to mid May, or as low as $166 for Tuesday flights around late January and early February.

When to Fly to Denver

Flying from Billings, MT (BIL) to Denver, CO (DEN) will usually cost between $186 to $403 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $262. Due to high demand the most expensive time to fly is early to mid May, with an average price of $394. Planning your trip to low-cost times can easily save you $132 on economy flights and even more on first-class flights. Generally, any price below $335 can be considered a good price for a round-trip BIL to DEN flight.

See below for a graph of average weekly prices for the BIL to DEN route. All prices are for round-trip tickets in USD.

Compared to other flights, the BIL to DEN flight is much cheaper than the average and costs much less than the average flight leaving from Billings. The average price per mile (for a direct flight) is $0.46, which is a bit above average.

Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Mondays are the most expensive days to fly to Denver, and Fridays are the most expensive days to return to Billings. Selecting flights on the least expensive days could save you up to $68 (20%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $274. Return trip prices are from the DEN to BIL flight, and often highlight the quality of our data in showing the same trend.

Nonstop Flights and Layovers

Travelers looking to fly from BIL to DEN can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 48 minutes may be realistic.

Flight Questions Answered

Still have questions about flying from BIL to DEN? We’ve got answers.

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Alaska, American, Delta, Frontier, United, and potentially more during busy seasons.

How far away is it from Denver International Airport to Billings Logan International Airport?

The distance between the two airports is roughly 455 miles or 732 kilometers.

How long does it take to fly from BIL to DEN?

The real-world flight time for a nonstop BIL to DEN flight is about 1 hour 48 minutes.

How many flights go between Billings, MT and Denver, CO?

It depends on the day of the week and the date, but a typical day might have around 48 available flights from BIL to DEN.

Airport Location Info

Late and Early Flight Data

Flights from BIL to DEN tend to depart as late as the average flight. According to our recently updated data, 24% of flights departed 5 or more minutes late, and 43% of flights left 5 or more minutes early. On average you can expect to leave DEN heading for BIL about 11 minutes late. This does significantly impact arrival time, as the average landing time in Denver, CO is about 18 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

• SkyWest: 15 minutes late
• United: 4 minutes late
• Frontier: 8 minutes late
• Some airlines not reporting

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.