BIL - DEN

$151 Find Cheap Flights from Billings to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billings to Denver departing on 10/5. 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 Denver

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

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Everything you should know

Cheapest round-trip
$249
Typical prices: $347-$239
United Airlines
Thu 6/4Sun 6/7
BIL - DEN • Non-stop
Cheapest one-way
$151
Typical prices: $369-$443
Multiple Airlines
Mon 10/5
BIL - DEN • 1 stop
Top airlines
Cheapest • from $249 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines. Average duration is 1h 51m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $263 (round-trip)
Shortest trip • 4h 08m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
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 Denver!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billings to Denver (BIL-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billings to Denver 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 Billings to Denver

Thu, Jun 4 - Sun, Jun 7
United Airlines Logo
6:00 pm - 7:52 pm
BIL
-
DEN
1h 52mnonstop
United Airlines Logo
7:55 am - 9:35 am
DEN
-
BIL
1h 40mnonstop
$249United Airlines
Mon, Jul 13 - Sat, Jul 18
Multiple Airlines Logo
9:59 am - 12:23 am
BIL
-
DEN
38h 24m
2 stops
Multiple Airlines Logo
10:36 pm - 5:06 pm
DEN
-
BIL
18h 30m
1 stop
$251Multiple Airlines
Sun, Jun 14 - Sun, Jun 21
United Airlines Logo
7:00 am - 8:50 am
BIL
-
DEN
1h 50mnonstop
United Airlines Logo
7:55 am - 9:35 am
DEN
-
BIL
1h 40mnonstop
$258United Airlines
Fri, Jun 12 - Tue, Jun 16
United Airlines Logo
6:00 pm - 7:52 pm
BIL
-
DEN
1h 52mnonstop
United Airlines Logo
7:40 pm - 9:17 pm
DEN
-
BIL
1h 37mnonstop
$262United Airlines
Sat, May 30 - Sat, Jun 6
United Airlines Logo
6:00 pm - 7:52 pm
BIL
-
DEN
1h 52mnonstop
United Airlines Logo
7:55 am - 9:35 am
DEN
-
BIL
1h 40mnonstop
$264United Airlines
Mon, Jul 13 - Sat, Jul 18
Multiple Airlines Logo
9:59 am - 12:30 am
BIL
-
DEN
14h 31m
1 stop
Multiple Airlines Logo
10:36 pm - 5:06 pm
DEN
-
BIL
18h 30m
1 stop
$266Multiple Airlines
Thu, Jul 16 - Sat, Jul 18
Multiple Airlines Logo
5:56 pm - 11:38 am
BIL
-
DEN
17h 42m
1 stop
Multiple Airlines Logo
10:36 pm - 5:06 pm
DEN
-
BIL
18h 30m
1 stop
$268Multiple Airlines
Thu, Jul 16 - Mon, Jul 20
Delta Logo
5:20 am - 9:12 am
BIL
-
DEN
3h 52m
1 stop
Delta Logo
7:05 am - 11:09 am
DEN
-
BIL
4h 04m
1 stop
$269Delta
Tue, Jul 14 - Sat, Jul 18
Multiple Airlines Logo
2:10 pm - 2:15 pm
BIL
-
DEN
24h 05m
1 stop
Multiple Airlines Logo
10:36 pm - 5:06 pm
DEN
-
BIL
18h 30m
1 stop
$270Multiple Airlines
Mon, Jul 13 - Sun, Jul 19
Multiple Airlines Logo
9:59 am - 12:23 am
BIL
-
DEN
38h 24m
2 stops
Multiple Airlines Logo
6:45 am - 5:06 pm
DEN
-
BIL
10h 21m
1 stop
$273Multiple Airlines
Booking Insights

KAYAK's insights & trends for Billings to Denver flights

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

How much is a round-trip flight from Billings to Denver?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Billings to Denver departing in June.

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

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

For Billings to Denver, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from Denver back to Billings, the best deals are generally found on Saturday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Billings to Denver, 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 Billings to Denver is December, where tickets cost $235 (return) on average. On the other hand, the most expensive months are March and July, where the average cost of round-trip tickets is $396 and $359 respectively.

Can I save money by flying with a layover from Billings to Denver?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $278, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Billings to Denver, 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 Billings to Denver, you should book around 5 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$151
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Billings to Denver

When to book flights from Billings to Denver

Are your dates flexible? Find out the best times to travel from Billings to Denver 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 Billings to Denver

  • What is the cheapest flight from Billings to Denver?

    In the last 3 days, the lowest price for a flight from Billings to Denver was $137 for a one-way ticket and $249 for a round-trip.

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

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

  • Which airlines offer Wi-Fi service onboard planes from Billings to Denver?

    American Airlines, Delta, JetBlue, and Alaska Airlines offer inflight Wi-Fi service on the Billings to Denver flight route.

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

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

  • Which airline alliances offer flights from Billings to Denver?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Billings and Denver, with SkyTeam being the most commonly used for this route.

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

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

  • Which is the best airline for flights from Billings to Denver, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Billings to Denver are Delta and United Airlines. With an average price for the route of $223 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $274 and an overall rating of 7.4.

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

    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 Billings to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Billings 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 Billings to Denver?

    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 Denver with an airline and back to Billings with another airline. Booking your flights between Billings and DEN 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 Billings to Denver?

    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 Denver from Billings 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 Billings to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $217 or less one-way and $412 or less round-trip.

Prefer to fly direct from Billings to Denver?

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

Direct departures

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

Direct returns

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

Reviews of the top airlines flying from Billings to Denver

 
See real verified KAYAK customer reviews for airlines flying from Billings to Denver. 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 Billings to Denver? 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.
7.9
DeltaOverall score based on 8455 reviews
7.8Comfort
7.2Food
8.1Boarding
8.5Crew
7.8Entertainment
Airline reviews

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

10.0 ExcellentBenjamin, May 2026
CLT - MSP
Read more Delta reviews

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

The entertainment options on the seat back video boards were nice.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

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

Information on your arrival and departure airports