HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$113+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — DEN
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
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 September or October, booked 68 days in advance, depart on a Wednesday or Thursday and return on a Thursday

Cheap 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 October 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$177
(Delta)

One-way from

$113
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$254

Good round-trip deal

$329 or less

Good one-way deal

$230 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. 10% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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

Find 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 October 10, 2025.

This Delta deal was found by Cheapflights users on 10/8. 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.
Tue 11/45:25 amBIL - DEN
1 stop6h 22mDelta
Wed 11/54:16 pmDEN - BIL
1 stop7h 02mDelta
Deal found 10/8$177
This United Airlines deal was found by Cheapflights users on 10/10. 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.
Sat 11/155:00 amBIL - DEN
Nonstop1h 49mUnited Airlines
Sun 11/168:00 amDEN - BIL
Nonstop1h 46mUnited Airlines
Deal found 10/10$189
This United Airlines deal was found by Cheapflights users on 10/9. 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 10/245:00 amBIL - DEN
Nonstop1h 51mUnited Airlines
Sat 11/19:05 pmDEN - BIL
Nonstop1h 44mUnited Airlines
Deal found 10/9$194
This Delta deal was found by Cheapflights users on 10/9. 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.
Tue 10/285:25 amBIL - DEN
1 stop6h 22mDelta
Wed 11/54:16 pmDEN - BIL
1 stop7h 02mDelta
Deal found 10/9$198
This United Airlines deal was found by Cheapflights users on 10/8. 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 10/245:54 pmBIL - DEN
Nonstop1h 49mUnited Airlines
Sun 10/2611:50 amDEN - BIL
Nonstop1h 33mUnited Airlines
Deal found 10/8$199
This Delta deal was found by Cheapflights users on 10/7. 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.
Thu 10/305:25 amBIL - DEN
1 stop4h 04mDelta
Sat 11/12:00 pmDEN - BIL
1 stop5h 42mDelta
Deal found 10/7$209
This United Airlines deal was found by Cheapflights users on 10/9. 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 10/165:54 pmBIL - DEN
Nonstop1h 49mUnited Airlines
Wed 11/58:00 amDEN - BIL
Nonstop1h 46mUnited Airlines
Deal found 10/9$219
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Wed 12/315:50 pmBIL - DEN
Nonstop1h 50mUnited Airlines
Sun 1/47:45 pmDEN - BIL
Nonstop1h 39mUnited Airlines
Deal found 10/8$224
This Delta deal was found by Cheapflights users on 10/9. 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 10/245:25 amBIL - DEN
1 stop4h 04mDelta
Sat 11/16:23 pmDEN - BIL
1 stop4h 42mDelta
Deal found 10/9$239
This Delta deal was found by Cheapflights users on 10/9. 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 10/245:25 amBIL - DEN
1 stop4h 04mDelta
Sat 10/255:30 amDEN - BIL
1 stop5h 34mDelta
Deal found 10/9$244
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/83:40 pmBIL - DEN
2 stops32h 19mAlaska Airlines
Mon 11/107:00 amDEN - BIL
2 stops30h 20mAlaska Airlines
Deal found 10/8$245
This United Airlines deal was found by Cheapflights users on 10/8. 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 12/52:40 pmBIL - DEN
Nonstop1h 42mUnited Airlines
Mon 12/87:45 pmDEN - BIL
Nonstop1h 36mUnited Airlines
Deal found 10/8$249

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 October 10, 2025.
Use the filters below to find and compare flights from Billings to Denver that are best for you.

Fly from

Billings

Fly to

Denver

Route

Depart

Return

Price

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Sat 11/1

5:54 pm-7:40 pm

Nonstop1h 46m

Denver Intl

Tue 11/4

8:00 am-9:46 am

Nonstop1h 46m

$189

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Tue 12/9

2:40 pm-4:22 pm

Nonstop1h 42m

Denver Intl

Tue 12/16

11:45 am-1:18 pm

Nonstop1h 33m

$189

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Sat 11/15

5:54 pm-7:40 pm

Nonstop1h 46m

Denver Intl

Sun 11/16

8:00 am-9:46 am

Nonstop1h 46m

$189

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Thu 10/30

5:57 pm-7:40 pm

Nonstop1h 43m

Denver Intl

Sat 11/1

11:50 am-1:23 pm

Nonstop1h 33m

$189

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Tue 10/28

5:57 pm-7:40 pm

Nonstop1h 43m

Denver Intl

Wed 11/5

3:40 pm-5:16 pm

Nonstop1h 36m

$194

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Thu 10/30

5:25 am-9:29 am

1 stop4h 04m

Denver Intl

Sat 11/1

2:00 pm-7:42 pm

1 stop5h 42m

$209

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Thu 10/30

5:25 am-9:29 am

1 stop4h 04m

Denver Intl

Sun 11/2

3:41 pm-10:25 pm

1 stop6h 44m

$209

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Fri 12/5

6:25 am-12:53 pm

1 stop6h 28m

Denver Intl

Mon 12/8

4:15 pm-11:48 pm

1 stop7h 33m

$209

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Sat 12/6

5:14 am-11:05 am

1 stop5h 51m

Denver Intl

Mon 12/8

4:15 pm-11:48 pm

1 stop7h 33m

$209

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Sat 11/8

5:25 am-9:29 am

1 stop4h 04m

Denver Intl

Sat 11/15

5:20 am-11:02 am

1 stop5h 42m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/8

Showing 1-10 of 18 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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?

Use this chart to determine the optimal time to book a round-trip flight from Billings to Denver. Price data was last updated on October 3, 2025.

The best time to book flights from Billings to Denver is 68 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 $152). Flying from Billings to Denver in February is currently the most expensive (average of $247). 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 October 10, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 61% on flights from Billings to Denver by exploring options for tickets in the evening.

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

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 October 10, 2025.
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
8.0
Very good
7,974 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,974 reviews
Delta
8.0
Very good
7,974 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,972 reviews
Delta
8.0
Very good
7,974 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 11 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 51 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 fly from Billings to Denver in about 1h 46m. The time it takes to get you to your destination is usually consistent. Billings and Denver are separated by a distance of 455 mi. Generally, flights for this route are nonstop.

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

    Cheapflights users have booked flights from Billings to Denver round-trip from $189. Another airline that can offer you cheap pricing is Delta. Users have found that United Airlines is 36% 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: SkyWest Airlines (80%), United Airlines (79%), Air Canada (75%).

  • What are the cheapest flights from Billings to Denver?

    While on average a flight from Billings to Denver is generally $875, our data shows the cheapest flight currently is $133. When looking at the most popular route, (Billings Logan Intl - Denver Intl), you can expect to pay $189 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 $152). Flying from Billings to Denver in February is currently the most expensive (average of $247). 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
Black Hawk
Westminster
Golden
Broomfield
Winter Park
Lakewood
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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 October 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$300FlexibilityNo cancel feeOn-time69%
DeltaCheapest$208Average$213FlexibilityNo cancel feeOn-timeN/A

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.