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$90+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — DEN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Billings Logan Intl to Denver Intl are usually found in August or December, booked 72 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 September 11, 2025.

Round-trip from

$179
(Delta)

One-way from

$90
(Delta)

Popular in

February

Cheapest in

August

Average price

$289

Good round-trip deal

$362 or less

Good one-way deal

$256 or less
From Billings Logan Intl to Denver Intl
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One-way flight from Billings Logan Intl to Denver Intl
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Highest demand for flights based on searches. 6% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Billings Logan Intl to Denver Intl.
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Price to beat on a one-way flight from Billings Logan Intl to Denver Intl.
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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 September 11, 2025.

This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/85:25 amBIL - DEN
1 stop4h 04mDelta
Wed 10/153:41 pmDEN - BIL
1 stop6h 44mDelta
Deal found 9/10$179
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:19 pmBIL - DEN
1 stop4h 25mDelta
Sat 10/412:55 pmDEN - BIL
1 stop4h 44mDelta
Deal found 9/10$184
This Delta deal was found by Cheapflights users on 9/9. 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.
Wed 10/225:25 amBIL - DEN
1 stop6h 22mDelta
Sat 10/2511:59 amDEN - BIL
1 stop5h 17mDelta
Deal found 9/9$189
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 9/295:00 amBIL - DEN
Nonstop1h 51mUnited Airlines
Tue 10/711:45 amDEN - BIL
Nonstop1h 33mUnited Airlines
Deal found 9/10$194
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/265:00 amBIL - DEN
Nonstop1h 51mUnited Airlines
Tue 9/307:55 amDEN - BIL
Nonstop1h 40mUnited Airlines
Deal found 9/10$199
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:25 amBIL - DEN
1 stop3h 53mDelta
Mon 9/293:45 pmDEN - BIL
1 stop6h 50mDelta
Deal found 9/10$204
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:15 amBIL - DEN
1 stop4h 14mDelta
Tue 12/26:20 pmDEN - BIL
1 stop6h 02mDelta
Deal found 9/10$209
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:19 pmBIL - DEN
1 stop4h 25mDelta
Thu 10/23:45 pmDEN - BIL
1 stop6h 50mDelta
Deal found 9/10$214
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 12/132:40 pmBIL - DEN
Nonstop1h 42mUnited Airlines
Mon 12/157:45 pmDEN - BIL
Nonstop1h 36mUnited Airlines
Deal found 9/9$219
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/298:40 pmBIL - DEN
1 stop7h 20mMultiple Airlines
Tue 10/78:55 pmDEN - BIL
1 stop14h 26mMultiple Airlines
Deal found 9/10$223
This Delta deal was found by Cheapflights users on 9/9. 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 12/166:24 amBIL - DEN
1 stop6h 30mDelta
Wed 12/176:20 pmDEN - BIL
1 stop6h 02mDelta
Deal found 9/9$229
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/298:40 pmBIL - DEN
1 stop7h 20mMultiple Airlines
Fri 10/36:30 amDEN - BIL
1 stop11h 11mMultiple Airlines
Deal found 9/10$234

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 September 11, 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

Tue 11/11

5:18 am-9:23 am

1 stop4h 05m

Denver Intl

Tue 11/18

5:16 am-11:02 am

1 stop5h 46m

$179

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Wed 10/29

6:25 am-12:39 pm

1 stop6h 14m

Denver Intl

Sat 11/1

2:00 pm-7:42 pm

1 stop5h 42m

$179

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Tue 9/30

6:19 pm-10:44 pm

1 stop4h 25m

Denver Intl

Sat 10/4

12:55 pm-5:39 pm

1 stop4h 44m

$184

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Wed 10/8

7:00 am-8:43 am

Nonstop1h 43m

Denver Intl

Wed 10/15

9:05 pm-10:46 pm

Nonstop1h 41m

$189

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Wed 11/5

7:00 am-8:43 am

Nonstop1h 43m

Denver Intl

Sat 11/8

7:42 pm-9:18 pm

Nonstop1h 36m

$189

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Wed 10/22

2:30 pm-4:12 pm

Nonstop1h 42m

Denver Intl

Sat 10/25

7:55 am-9:35 am

Nonstop1h 40m

$189

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Fri 11/7

7:00 am-8:43 am

Nonstop1h 43m

Denver Intl

Sun 11/9

7:42 pm-9:18 pm

Nonstop1h 36m

$194

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Fri 11/7

7:00 am-8:43 am

Nonstop1h 43m

Denver Intl

Sat 11/8

11:50 am-1:23 pm

Nonstop1h 33m

$194

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Mon 9/29

5:00 am-6:51 am

Nonstop1h 51m

Denver Intl

Tue 10/7

11:45 am-1:18 pm

Nonstop1h 33m

$194

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Tue 12/9

5:15 am-9:29 am

1 stop4h 14m

Denver Intl

Tue 12/9

4:18 pm-11:45 pm

1 stop7h 27m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 22 results
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2
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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 August 29, 2025.

The best time to book flights from Billings to Denver is 72 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, October is the cheapest month in which you can book a flight from Billings to Denver (average of $197). Flying from Billings to Denver in March is currently the most expensive (average of $278). 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 September 11, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 12% on flights from Billings to Denver by exploring options for tickets at noon.

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 September 11, 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
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

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
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

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
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

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 13 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 39m.

  • How popular is this Billings to Denver flight route?

    This flight path from Billings Logan Intl to Denver Intl was viewed by 50 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 Delta and United Airlines fly from Billings to Denver in about 1h 43m. The time it takes to get you to your destination can typically vary by up to 2h 22m. 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 $195. Another airline that can offer you cheap pricing is Delta. Users have found that United Airlines is 35% 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: Air Canada (70%), United Airlines (67%), SkyWest Airlines (67%).

  • What are the cheapest flights from Billings to Denver?

    While on average a flight from Billings to Denver is generally $673, our data shows the cheapest flight currently is $190. When looking at the most popular route, (Billings Logan Intl - Denver Intl), you can expect to pay $184 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, October is the cheapest month in which you can book a flight from Billings to Denver (average of $197). Flying from Billings to Denver in March is currently the most expensive (average of $278). 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
Westminster
Black Hawk
Golden
Winter Park
Broomfield
Greeley
Lone Tree
Lakewood
Cripple Creek
Thornton
Silverthorne
Frisco
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker

Browse thousands of different options on Cheapflights for your next trip

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$195Average$305FlexibilityNo cancel feeOn-time69%
DeltaCheapest$208Average$213FlexibilityNo cancel feeOn-timeN/A

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