BIL - DEN

$67 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 1/26. 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
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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
$133
Overall average: $340
Delta
Mon 1/5Fri 1/9
BIL - DEN • 1 stop
Cheapest non-stop
$189
Typical prices: $309-$429
United Airlines
Fri 1/16Fri 1/23
BIL - DEN • Non-stop
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 49% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 15% price drop
June
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

Mon, Jan 5 - Fri, Jan 9
Delta Logo
5:15 am - 9:38 am
BIL
-
DEN
4h 23m1 stop
Delta Logo
6:23 pm - 10:31 pm
DEN
-
BIL
4h 08m1 stop
$133Delta
Thu, Jan 8 - Sun, Jan 11
Delta Logo
5:15 am - 9:38 am
BIL
-
DEN
4h 23m1 stop
Delta Logo
3:59 pm - 10:31 pm
DEN
-
BIL
6h 32m1 stop
$134Delta
Thu, Feb 5 - Sun, Feb 8
Delta Logo
5:15 am - 9:38 am
BIL
-
DEN
4h 23m1 stop
Delta Logo
3:45 pm - 10:31 pm
DEN
-
BIL
6h 46m1 stop
$186Delta
Fri, Jan 16 - Fri, Jan 23
United Airlines Logo
6:30 am - 8:13 am
BIL
-
DEN
1h 43mnonstop
United Airlines Logo
8:00 am - 9:50 am
DEN
-
BIL
1h 50mnonstop
$189United Airlines
Thu, Jan 8 - Sun, Jan 11
Delta Logo
5:15 am - 9:38 am
BIL
-
DEN
4h 23m1 stop
Delta Logo
3:59 pm - 10:31 pm
DEN
-
BIL
6h 32m1 stop
$209Delta
Thu, Jan 8 - Sun, Jan 11
Delta Logo
5:15 am - 11:25 pm
BIL
-
DEN
18h 10m2 stops
Delta Logo
6:23 pm - 10:31 pm
DEN
-
BIL
4h 08m1 stop
$210Delta
Thu, Feb 26 - Sun, Mar 1
Delta Logo
5:10 am - 9:24 am
BIL
-
DEN
4h 14m1 stop
Delta Logo
3:59 pm - 10:26 pm
DEN
-
BIL
6h 27m1 stop
$216Delta
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
7:00 am - 8:47 am
BIL
-
DEN
1h 47mnonstop
United Airlines Logo
8:00 am - 9:50 am
DEN
-
BIL
1h 50mnonstop
$218United Airlines
Mon, Jan 26 - Mon, Feb 2
Delta Logo
5:15 am - 9:38 am
BIL
-
DEN
4h 23m1 stop
Delta Logo
6:23 pm - 10:31 pm
DEN
-
BIL
4h 08m1 stop
$224Delta
Fri, Jan 16 - Sun, Jan 18
Multiple Airlines Logo
12:20 pm - 10:42 am
BIL
-
DEN
22h 22m1 stop
Multiple Airlines Logo
10:29 pm - 9:49 am
DEN
-
BIL
11h 20m1 stop
$234Multiple 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.

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, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Denver back to Billings, the best deals are generally found on Tuesday, with Monday 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 September, where tickets cost $254 (return) on average. On the other hand, the most expensive months are February and July, where the average cost of round-trip tickets is $369 and $359 respectively.

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 4 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$67
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 6% 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 $67 for a one-way ticket and $133 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?

    Delta, and American 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 $213 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 $293 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 $250 or less one-way and $383 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 8007 reviews
7.9Comfort
8.5Crew
7.3Food
8.1Boarding
7.9Entertainment
Airline reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

6.0 GoodJeff, Dec 2025
JFK - MIA
Read more Delta reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

United have really come back. Airport and boarding process is clear and good, app and information also very good

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

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

Information on your arrival and departure airports