BIL - DEN

$187 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 9/27. 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

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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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

Sun, Sep 14 - Sun, Sep 21
United Airlines Logo
4:15 pm - 6:05 pmBIL-DEN
1h 50mnonstop
United Airlines Logo
9:05 pm - 10:46 pmDEN-BIL
1h 41mnonstop
$189United Airlines
Find Deal
Fri, Sep 5 - Sun, Sep 7
United Airlines Logo
5:00 am - 6:51 amBIL-DEN
1h 51mnonstop
United Airlines Logo
8:05 am - 9:44 amDEN-BIL
1h 39mnonstop
$194United Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
Delta Logo
5:25 am - 9:14 amBIL-DEN
3h 49m1 stop
Delta Logo
3:45 pm - 10:35 pmDEN-BIL
6h 50m1 stop
$209Delta
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Wed, Sep 3 - Sat, Sep 6
Delta Logo
5:25 am - 9:14 amBIL-DEN
3h 49m1 stop
Delta Logo
6:16 pm - 11:12 pmDEN-BIL
4h 56m1 stop
$219Delta
Find Deal
Wed, Sep 10 - Mon, Sep 15
Delta Logo
5:25 am - 9:14 amBIL-DEN
3h 49m1 stop
Delta Logo
3:45 pm - 10:35 pmDEN-BIL
6h 50m1 stop
$239Delta
Find Deal
Wed, Sep 10 - Wed, Sep 17
United Airlines Logo
5:57 pm - 7:40 pmBIL-DEN
1h 43mnonstop
United Airlines Logo
7:00 pm - 8:34 pmDEN-BIL
1h 34mnonstop
$249United Airlines
Find Deal
Mon, Sep 8 - Thu, Sep 11
 Logo
7:45 pm - 4:00 amBIL-DEN
8h 15m1 stop
 Logo
7:00 am - 9:08 amDEN-BIL
26h 08m1 stop
Fri, Sep 26 - Sun, Sep 28
 Logo
5:21 pm - 11:00 amBIL-DEN
17h 39m1 stop
 Logo
10:29 pm - 7:50 pmDEN-BIL
21h 21m1 stop
Wed, Sep 24 - Fri, Sep 26
Alaska Airlines Logo
6:00 am - 10:02 pmBIL-DEN
16h 02m1 stop
Alaska Airlines Logo
7:33 pm - 1:24 pmDEN-BIL
17h 51m2 stops
$346Alaska Airlines
Find Deal
Wed, Nov 5 - Fri, Nov 7
Alaska Airlines Logo
6:00 am - 11:59 pmBIL-DEN
17h 59m1 stop
Alaska Airlines Logo
6:46 pm - 3:00 pmDEN-BIL
20h 14m2 stops
$348Alaska Airlines
Find Deal
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, Wednesday 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 Thursday, with Tuesday 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 August, where tickets cost $274 (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 21 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$187
Best time to beat the crowds but there is an average 16% 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 $187 for a one-way ticket and $189 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, American Airlines, 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?

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

  • 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 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $307 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 $275 or less one-way and $377 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

Air Canada, Copa Airlines, Lufthansa, +2 more

Air Canada, Copa Airlines, +3 more

Tuesday

Air Canada, Lufthansa, United Airlines

Air Canada, Lufthansa, +1 more

Wednesday

Air Canada, Lufthansa, SWISS, +2 more

Air Canada, Lufthansa, +3 more

Thursday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Friday

Air Canada, Copa Airlines, Lufthansa, +2 more

Air Canada, Copa Airlines, +3 more

Saturday

Air Canada, Lufthansa, United Airlines, +1 more

Air Canada, Lufthansa, +2 more

Sunday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

See more direct flights

Direct returns

Denver Intl to Billings Logan Intl

Monday

Air Canada, Copa Airlines, Lufthansa, +2 more

Air Canada, Copa Airlines, +3 more

Tuesday

Air Canada, Lufthansa, United Airlines

Air Canada, Lufthansa, +1 more

Wednesday

Air Canada, Lufthansa, SWISS, +2 more

Air Canada, Lufthansa, +3 more

Thursday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

Friday

Air Canada, Copa Airlines, Lufthansa, +2 more

Air Canada, Copa Airlines, +3 more

Saturday

Air Canada, Lufthansa, United Airlines, +1 more

Air Canada, Lufthansa, +2 more

Sunday

Air Canada, Copa Airlines, Lufthansa, +1 more

Air Canada, Copa Airlines, +2 more

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.
8.0
DeltaOverall score based on 7981 reviews
7.9Entertainment
8.2Boarding
8.5Crew
7.3Food
7.9Comfort
Airline reviews

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

10.0 ExcellentLee, Aug 2025ATL - PHL
Read more Delta reviews

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

There was supposed to be a meal served, but there wasn’t and the major toilet was out of order

They made us board and then deboard due to mechanical issue which delayed the departure by almost 2 hours and we barely made our connecting flight. These quality checks should've been done before boarding not after.

Having to up charge for a seat assignment is not good. Delta can do better

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.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Food choices were very limited. Taste of the dishes was average.

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

Information on your arrival and departure airports

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