DEN - BIL

$142 Find Cheap Flights from Denver to Billings

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Billings departing on 2/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Billings

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Billings, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Billings, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$189
Overall average: $309
United Airlines
Mon 1/12Sun 1/18
DEN - BIL • Non-stop
Cheapest one-way
$142
Typical prices: $154-$304
Alaska Airlines
Tue 2/24
DEN - BIL • 2 stops
Top airlines
United Airlines
Cheapest • from $189 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 25% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Billings!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Billings (DEN-BIL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Billings that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Billings

Mon, Jan 12 - Sun, Jan 18
United Airlines Logo
7:44 pm - 9:23 pm
DEN
-
BIL
1h 39mnonstop
United Airlines Logo
2:45 pm - 4:29 pm
BIL
-
DEN
1h 44mnonstop
$189United Airlines
Sun, Jun 14 - Sat, Jun 20
United Airlines Logo
7:18 pm - 8:51 pm
DEN
-
BIL
1h 33mnonstop
United Airlines Logo
7:00 am - 8:39 am
BIL
-
DEN
1h 39mnonstop
$198United Airlines
Mon, Jan 12 - Sun, Jan 18
Delta Logo
6:23 pm - 10:31 pm
DEN
-
BIL
4h 08m1 stop
Delta Logo
5:15 am - 11:54 am
BIL
-
DEN
6h 39m1 stop
$209Delta
Sat, Feb 21 - Thu, Feb 26
Delta Logo
3:59 pm - 10:26 pm
DEN
-
BIL
6h 27m1 stop
Delta Logo
5:10 am - 9:24 am
BIL
-
DEN
4h 14m1 stop
$224Delta
Mon, Dec 29 - Thu, Jan 1
United Airlines Logo
8:00 am - 9:49 am
DEN
-
BIL
1h 49mnonstop
United Airlines Logo
5:50 pm - 7:40 pm
BIL
-
DEN
1h 50mnonstop
$237United Airlines
Wed, Dec 31 - Thu, Jan 1
Delta Logo
4:14 pm - 11:19 pm
DEN
-
BIL
7h 05m1 stop
Delta Logo
5:15 am - 11:00 am
BIL
-
DEN
5h 45m1 stop
$239Delta
Mon, Jan 5 - Sat, Jan 10
United Airlines Logo
7:45 pm - 9:24 pm
DEN
-
BIL
1h 39mnonstop
United Airlines Logo
10:52 am - 12:45 pm
BIL
-
DEN
1h 53mnonstop
$245United Airlines
Thu, Jan 8 - Sun, Jan 11
Delta Logo
6:29 am - 11:06 am
DEN
-
BIL
28h 37m2 stops
Delta Logo
5:15 am - 11:54 am
BIL
-
DEN
6h 39m1 stop
$246Delta
Thu, Jan 15 - Sun, Jan 18
United Airlines Logo
7:44 pm - 9:23 pm
DEN
-
BIL
1h 39mnonstop
United Airlines Logo
4:13 pm - 6:07 pm
BIL
-
DEN
1h 54mnonstop
$249United Airlines
Thu, Jan 8 - Sun, Jan 11
United Airlines Logo
1:40 pm - 3:20 pm
DEN
-
BIL
1h 40mnonstop
United Airlines Logo
4:13 pm - 6:07 pm
BIL
-
DEN
1h 54mnonstop
$250United Airlines
Booking Insights

KAYAK's insights & trends for Denver to Billings flights

Get data-powered insights and trends into flights from Denver to Billings to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Billings?

The average price of all round-trip flights from Denver to Billings clicked on KAYAK for each day over the last 12 months.

When flying from Denver to Billings, you should consider leaving on a Tuesday and avoid Mondays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

What is the cheapest month to fly from Denver to Billings?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Billings, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Billings is October, where tickets cost $219 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $359 and $329 respectively.

How far in advance should I book a flight from Denver to Billings?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Billings, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Billings, you should book around 4 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$142
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly with an average 13% increase in price.
Flight from Denver to Billings

When to book flights from Denver to Billings

Are your dates flexible? Find out the best times to travel from Denver to Billings based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Billings

  • What is the cheapest flight from Denver to Billings?

    In the last 3 days, the lowest price for a flight from Denver to Billings was $142 for a one-way ticket and $189 for a round-trip.

  • Do I need a passport to fly between Denver and Billings?

    A passport is not required to fly from Denver to Billings.

  • Which airports will I be using when flying from Denver to Billings?

    Denver and Billings are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at Billings Logan Intl.

  • Which aircraft models fly most regularly from Denver to Billings?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Denver to Billings flight route.

  • Which airline alliances offer flights from Denver to Billings?

    Star Alliance is the only airline alliance operating flights between Denver and Billings.

  • On which days can I fly direct from Denver to Billings?

    There are nonstop flights from Denver to Billings on a daily basis.

  • How does KAYAK find such low prices on flights from Denver to Billings?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Billings.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Billings?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Billings?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Billings with an airline and back to Denver with another airline. Booking your flights between Denver and BIL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Billings?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Billings from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Billings

  • Looking for a cheap flight? 25% of our users found flights on this route for $273 or less one-way and $189 or less round-trip.

Prefer to fly direct from Denver to Billings?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Billings Logan Intl.
Find which airlines fly direct from Denver Intl Airport to Billings Logan Intl Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Billings Logan Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Billings Logan Intl to Denver Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top airline flying from Denver to Billings

 
See real verified KAYAK customer reviews for airlines flying from Denver to Billings. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Billings? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9095 reviews
7.1Entertainment
8.1Crew
7.3Comfort
7.7Boarding
6.6Food
Airline reviews

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

8.0 ExcellentJessica, Oct 2025
DEN - TUS
Read more United Airlines reviews

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

Everything you need to know for your flight from Denver to Billings

Information on your arrival and departure airports