HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$144+ Cheap flights from Billings to Denver (BIL - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — DEN
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Billings to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Billings Logan Intl to Denver Intl are usually found in December or October, booked 57 days in advance, depart on a Friday or Saturday and return on a Saturday

Cheap flight deals from Billings to Denver

Cheapest flights from Billings to Denver
Explore the most affordable flight options available from Billings to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:58 pm
BIL
-
DEN
1 stop12h 07m
Multiple Airlines
Thu 9/101:05 pm
DEN
-
BIL
1 stop27h 16m
Multiple Airlines
Deal found 7/26$202
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:52 pm
BIL
-
DEN
1 stop7h 00m
Multiple Airlines
Thu 10/1510:29 pm
DEN
-
BIL
1 stop11h 00m
Multiple Airlines
Deal found 7/26$239
This United Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:57 pm
BIL
-
DEN
Nonstop1h 56m
United Airlines
Fri 9/118:00 am
DEN
-
BIL
Nonstop1h 41m
United Airlines
Deal found 7/22$259
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:00 am
BIL
-
DEN
Nonstop1h 50m
United Airlines
Thu 8/278:00 am
DEN
-
BIL
Nonstop1h 41m
United Airlines
Deal found 7/26$274
This Delta deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:24 pm
BIL
-
DEN
1 stop4h 31m
Delta
Fri 9/117:05 am
DEN
-
BIL
1 stop5h 12m
Delta
Deal found 7/22$279
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:57 pm
BIL
-
DEN
Nonstop1h 56m
United Airlines
Sat 8/228:26 pm
DEN
-
BIL
Nonstop1h 41m
United Airlines
Deal found 7/24$288
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:00 am
BIL
-
DEN
Nonstop1h 50m
United Airlines
Tue 8/113:35 pm
DEN
-
BIL
Nonstop1h 41m
United Airlines
Deal found 7/23$289
This Delta deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:20 am
BIL
-
DEN
1 stop3h 54m
Delta
Sat 8/156:28 pm
DEN
-
BIL
1 stop4h 25m
Delta
Deal found 7/23$294
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:57 pm
BIL
-
DEN
Nonstop1h 56m
United Airlines
Sat 8/227:26 pm
DEN
-
BIL
Nonstop1h 34m
United Airlines
Deal found 7/24$298
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:07 am
BIL
-
DEN
Nonstop1h 53m
United Airlines
Sun 8/97:40 pm
DEN
-
BIL
Nonstop1h 37m
United Airlines
Deal found 7/23$299

Find flight deals from Billings to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$202
(Kiwi.com)

One-way from

$144
(Kiwi.com)

Popular in

March

Cheapest in

December

Average price

$378

Good round-trip deal

$430 or less

Good one-way deal

$284 or less
Provider with most accurate pricing for Billings Logan Intl-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Billings Logan Intl-Denver Intl flights.
Search Deals
From Billings Logan Intl to Denver Intl
Search Deals
One-way flight from Billings Logan Intl to Denver Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Billings Logan Intl to Denver Intl.
Search Deals
Price to beat on a one-way flight from Billings Logan Intl to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Billings to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 27, 2026.
Use the filters below to find and compare flights from Billings to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Sat 8/22

5:57 pm-7:53 pm

Nonstop1h 56m

Denver Intl

Sat 8/29

8:26 pm-10:07 pm

Nonstop1h 41m

$259

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Fri 8/28

5:57 pm-7:53 pm

Nonstop1h 56m

Denver Intl

Sat 8/29

8:00 am-9:41 am

Nonstop1h 41m

$259
Quickest round-trip

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Fri 9/4

7:00 am-8:47 am

Nonstop1h 47m

Denver Intl

Tue 9/8

8:00 am-9:41 am

Nonstop1h 41m

$259

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Thu 8/20

5:20 am-9:14 am

1 stop3h 54m

Denver Intl

Thu 8/27

6:28 pm-10:25 pm

1 stop3h 57m

$279

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Fri 9/18

6:33 pm-10:40 pm

1 stop4h 07m

Denver Intl

Thu 9/24

8:05 am-12:17 pm

1 stop4h 12m

$279

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Fri 8/28

6:24 pm-10:55 pm

1 stop4h 31m

Denver Intl

Sat 8/29

6:28 pm-10:53 pm

1 stop4h 25m

$279

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Wed 8/12

5:20 am-9:14 am

1 stop3h 54m

Denver Intl

Sat 8/15

6:28 pm-10:53 pm

1 stop4h 25m

$279

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Fri 8/7

7:00 am-8:50 am

Nonstop1h 50m

Denver Intl

Sun 8/9

8:26 pm-10:10 pm

Nonstop1h 44m

$289

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Thu 8/20

5:20 am-9:14 am

1 stop3h 54m

Denver Intl

Sat 8/22

6:28 pm-10:53 pm

1 stop4h 25m

$289

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Thu 9/3

5:07 am-7:00 am

Nonstop1h 53m

Denver Intl

Mon 9/7

3:35 pm-5:16 pm

Nonstop1h 41m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Billings to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Billings to Denver in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Billings-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billings-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billings-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Billings to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Billings with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

The best time to book flights from Billings to Denver is 26 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Billings to Denver?

Currently, December is the cheapest month in which you can book a flight from Billings to Denver (average of $235). Flying from Billings to Denver in March is currently the most expensive (average of $424). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BIL to DEN?

Find hourly flight availability from Billings to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 27, 2026.

When flying from Billings to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Billings to Denver?

Airfare is below average for this route at the moment.

Billings to Denver flights typically cost between $249 and $319 in August.
The cheapest round-trip price found within the last 5 days was $202 on Multiple Airlines (Aug 24-Sep 10).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated July 27, 2026.
Read reviews from past customers who have flown Delta and United Airlines from Billings to Denver. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,483 reviews

Comfort

7.8

Food

7.2

Overall

7.8

Entertainment

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,483 reviews
Delta
7.8
Good
8,483 reviews

Comfort

7.8

Food

7.2

Overall

7.8

Entertainment

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,041 reviews
Delta
7.8
Good
8,483 reviews

Comfort

7.8

Food

7.2

Overall

7.8

Entertainment

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Billings to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Billings to Denver?

    You will need to book a flight from Billings Logan Intl to Denver Intl if you want to fly from Billings to Denver. At least 2 different airlines have flights from Billings Logan Intl (BIL) to Denver Intl (DEN) on a regular basis. There are 15 flights to Denver from the Billings airport per day. If you manage to book one that is nonstop, then you can expect the flight time from BIL to DEN to be around 1h 43m.

  • How popular is this Billings to Denver flight route?

    This flight path from Billings Logan Intl to Denver Intl was viewed by 41 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Billings to Denver?

    Airlines like United Airlines and Delta fly from Billings to Denver in about 1h 56m. The time it takes to get you to your destination can typically vary by up to 1h 58m. Billings and Denver are separated by a distance of 455 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Billings to Denver round-trip?

    Cheapflights users have booked flights from Billings to Denver round-trip from $176. Another airline that can offer you cheap pricing is United Airlines. Users have found that Delta is 41% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Billings to Denver?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Billings to Denver on time: Lufthansa (83%), Air Canada (82%), United Airlines (78%).

  • What are the cheapest flights from Billings to Denver?

    While on average a flight from Billings to Denver is generally $681, our data shows the cheapest flight currently is $203. When looking at the most popular route, (Billings Logan Intl - Denver Intl), you can expect to pay $259 for that flight.

  • Can I find deals for flights from Billings to Denver that include hotel bookings?

    Yes. In addition to deals on Billings to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billings to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Billings to Denver.

  • Can I find deals for business class flights from Billings to Denver?

    Yes. Cheapflights offers flight deals from Billings to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Billings to Denver?

    Currently, December is the cheapest month in which you can book a flight from Billings to Denver (average of $235). Flying from Billings to Denver in March is currently the most expensive (average of $424). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk
Westminster
Centennial
Lakewood
Broomfield
Golden
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Glendale
Evergreen

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Billings to Denver

Discover the top 2 airlines that operate flights from Billings to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$176Average$268FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$189Average$280FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.