Cheap flights from Denver International to Billings

Compare Denver International to Billings flight deals

Find the cheapest month or even day of the year to fly to Billings

Book the best Billings fare with no extra fees

Flight deals from Denver International to Billings

Looking for a cheap last-minute deal or the best round-trip flight from Denver International Airport to Billings Airport? If you want to travel next month, round-trip fares start from $248. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Denver International to Billings

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Billings flights are currently cheapest in January.

Direct flights from Denver International to Billings

Denver International to Billings: Alternative routes

Compare routes from Denver International to Billings below. You may find an airport to fly into that's cheaper, faster, or easier than Billings.

Denver to Billings: Flight information

The things to know before you go.
Cheapest flight found$247
Cheapest month to flyJanuary
Average flight time1 hr, 40 mins
Most popular airlineUnited
Average flights per week115

Finding cheap flights from Denver International to Billings: Frequently asked questions

The best price we found for a round-trip flight from Denver International to Billings is $247. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 40 minutes is the average flight time from Denver International to Billings.
United, Air Canada and SkyWest Airlines fly direct from Denver International to Billings.
There are 115 flights per week flying from Denver International to Billings, as of July 2026.
The cheapest month to fly from Denver International to Billings is usually January.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Billings Airport on Saturday, January 9, 2027.
Yes – the average flight time is 1 hour and 40 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Billings but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Billings is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, United offers the cheapest flight tickets to Billings.

Traveling from Denver International Airport (DEN) to Billings Airport (BIL): what you need to know

  • The average length of a direct flight from Denver International Airport to Billings Airport is 1 hour 35 minutes.

  • Flights from DEN to BIL start from 08:00 — the first with United Airlines. The last departure is at 21:05 with United Airlines. In total, you can choose from 35 weekly Denver International Airport to Billings Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Make sure you're at the airport on time to catch your DEN to BIL flight.

  • Traveling during a peak month such as July? School holidays and other popular periods can mean longer lines and delays at security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • Flying into Billings (and then discovering more of the United States!) is a breeze with United. This popular airline has direct flights from Denver International Airport to Billings Airport.

  • The airline most travelers fly with on this route is United.

  • With a dependable 84.33% of services arriving as planned, United has the best on-time record for DEN to BIL flights.

  • Consider adding a stopover when booking your ticket from Denver International Airport to Billings Airport. Just deselect 'Direct flights only' to break up your journey, or visit a new city along the way. Here's where you can stop between DEN and BIL:

    • Minneapolis St Paul Airport

    • Harry Reid International Airport

    • Salt Lake City Airport

Handy information about Denver International Airport (DEN)

  • You'll find DEN at 8500 Pena Boulevard.

  • 80% of flights leaving Denver International Airport arrive at their destination on schedule. With its solid on-time performance, you're unlikely to be delayed when taking off from DEN.

  • Central Denver to Denver International Airport is approximately 40 kilometers. Depending on traffic, it'll take about 35 minutes to get there if you're catching a cab, ride-sharing or driving.

  • Expect a journey time of roughly 35 minutes on public transport.

  • Booking a night at a hotel can take the stress out of getting to the airport on time. If you need a place to stay before your flight from Denver International Airport to Billings Airport, have a look at Baymont by Wyndham Denver International Airport. It's a short drive from DEN.

Arriving at Billings Airport (BIL)

  • Reserve a hotel close to BIL if you have a late Denver International Airport to Billings Airport flight. Select one of these options and avoid the hassle of a long transfer:

  • Go where the road takes you with a Billings Airport rental car. Book your wheels from Alamo, Budget or Rent a Wreck and discover more of Billings and beyond.

  • To secure the best deal, reserve your ride from Billings Airport at least a couple of weeks ahead. Rates typically rise closer to your departure date.

Getting from Billings Airport (BIL) to central Billings

  • The street address for BIL is 1901 Terminal Circle, Room 216.

  • Billings Airport to the center of Billings has a drive time of about 15 minutes. It's approximately 10 kilometers away.

  • It takes roughly 30 minutes when traveling by public transport.

When to fly to Billings Airport (BIL)

  • The quietest month for a flight from Denver International Airport to Billings Airport is March, while September is the most popular. Pick the best time to visit Billings based on whether you prefer a faster pace or a more relaxed vibe.

  • When reserving your flight from Denver International Airport to Billings Airport, think about the kind of weather you like. July is the warmest month in Billings, with temperatures ranging from 13ºC (55ºF) to 34ºC (93ºF).

  • February has average temperatures of between -18ºC (0ºF) and 8ºC (46ºF). Look for cheap tickets from DEN to BIL sometime around then if you like traveling in cooler conditions.

Explore more of the United States

  • You've seen Billings, now it's time to discover more of the United States. Travel about 451 kilometers south-east to Rapid City to check off its leading attractions. From Dinosaur Park to President Abraham Lincoln Statue and Lakota Dream Museum and Monument, there's plenty to keep you on the go.

  • Around 434 kilometers west of Billings, Missoula is another essential stop in the United States. Experience this destination's highlights firsthand at Mt Jumbo, Lolo Natioal Forest and Missoula Art Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.