$122+ Cheap flights from Denver to Billings (DEN - BIL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BIL
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Billings 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.Cheap flight deals from Denver to Billings
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Best
Last-minute
One-way
Cheapest flights from Denver to BillingsExplore the most affordable flight options available from Denver to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
Explore the most affordable flight options available from Denver to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/27:35 pm -
Nonstop1h 35m
Fri 10/95:57 pm -
Nonstop1h 56m
Deal found 9/4![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/23:35 pm -
Nonstop1h 41m
Sun 10/47:00 am -
Nonstop1h 47m
Deal found 9/6![United Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/188:00 am -
Nonstop1h 41m
Mon 9/215:57 pm -
Nonstop1h 56m
Deal found 9/4![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/163:35 pm -
Nonstop1h 41m
Sun 10/185:57 pm -
Nonstop1h 56m
Deal found 9/8![United Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Thu 10/2210:45 pm -
1 stop18h 16m
Mon 10/267:59 pm -
2 stops19h 14m
Deal found 9/5![Multiple Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 9/6. 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 10/226:00 pm -
1 stop4h 25m
Tue 10/2712:58 pm -
1 stop3h 58m
Deal found 9/6![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:35 pm -
Nonstop1h 41m
Sat 9/265:57 pm -
Nonstop1h 56m
Deal found 9/7![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/79:10 pm -
Nonstop1h 41m
Wed 10/145:00 am -
Nonstop1h 53m
Deal found 9/8![United Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Tue 9/159:10 pm -
Nonstop1h 41m
Tue 9/225:57 pm -
Nonstop1h 56m
Deal found 9/4![United Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Fri 10/237:00 am -
1 stop10h 01m
Mon 10/267:59 pm -
2 stops19h 14m
Deal found 9/5![Multiple Airlines logo]()
$341
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/253:35 pm -
Nonstop1h 41m
Mon 9/285:57 pm -
Nonstop1h 56m
Deal found 9/4![United Airlines logo]()
$349
Best flights from Denver to BillingsDiscover carefully curated flight deals from Denver to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Denver to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/227:35 pm -
Nonstop1h 35m
Sun 10/255:00 am -
Nonstop1h 42m
Deal found 9/6![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 9/5. 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 2/125:40 am -
1 stop6h 39m
Fri 2/1912:58 pm -
1 stop6h 12m
Deal found 9/5![Delta logo]()
$319
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 11/121:55 pm -
2 stops21h 20m
Mon 11/165:12 pm -
1 stop18h 02m
Deal found 9/6![Alaska Airlines logo]()
$478
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:38 am -
Nonstop1h 36m
Sun 10/185:57 pm -
Nonstop1h 56m
Deal found 9/7![United Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 9/6. 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 10/206:00 pm -
1 stop4h 25m
Sat 10/245:20 am -
1 stop4h 25m
Deal found 9/6![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 9/5. 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.
Sat 10/1710:45 am -
1 stop7h 03m
Sun 10/256:29 pm -
1 stop4h 11m
Deal found 9/5![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/259:10 pm -
Nonstop1h 43m
Sun 9/275:57 pm -
Nonstop1h 56m
Deal found 9/8![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:35 pm -
Nonstop1h 41m
Sat 9/265:57 pm -
Nonstop1h 56m
Deal found 9/7![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/6. 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 12/237:35 pm -
Nonstop1h 40m
Sun 12/277:00 am -
Nonstop1h 46m
Deal found 9/6![United Airlines logo]()
$361
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/227:35 pm -
Nonstop1h 35m
Sat 10/245:57 pm -
Nonstop1h 56m
Deal found 9/6![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/8. 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.
Sun 10/45:30 am -
1 stop6h 47m
Sun 10/115:20 am -
1 stop4h 24m
Deal found 9/8![Delta logo]()
$459
This United Airlines deal was found by Cheapflights users on 9/5. 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 9/253:35 pm -
Nonstop1h 41m
Mon 9/285:57 pm -
Nonstop1h 56m
Deal found 9/5![United Airlines logo]()
$384
Last-minute flights from Denver to BillingsDiscover last-minute flight deals from Denver to Billings. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Billings. Data last updated September 9, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Tue 9/159:10 pm -
Nonstop1h 41m
Tue 9/225:57 pm -
Nonstop1h 56m
Deal found 9/4![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/188:00 am -
Nonstop1h 41m
Mon 9/215:57 pm -
Nonstop1h 56m
Deal found 9/4![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:35 pm -
Nonstop1h 41m
Sat 9/265:57 pm -
Nonstop1h 56m
Deal found 9/7![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/253:35 pm -
Nonstop1h 41m
Mon 9/285:57 pm -
Nonstop1h 56m
Deal found 9/4![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/27:35 pm -
Nonstop1h 35m
Fri 10/95:57 pm -
Nonstop1h 56m
Deal found 9/4![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 9/6. 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 10/23:35 pm -
Nonstop1h 41m
Sun 10/47:00 am -
Nonstop1h 47m
Deal found 9/6![United Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/79:10 pm -
Nonstop1h 41m
Wed 10/145:00 am -
Nonstop1h 53m
Deal found 9/8![United Airlines logo]()
$330
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/163:35 pm -
Nonstop1h 41m
Sun 10/185:57 pm -
Nonstop1h 56m
Deal found 9/8![United Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Thu 10/2210:45 pm -
1 stop18h 16m
Mon 10/267:59 pm -
2 stops19h 14m
Deal found 9/5![Multiple Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 9/6. 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 10/226:00 pm -
1 stop4h 25m
Sat 10/245:20 am -
1 stop4h 25m
Deal found 9/6![Delta logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Fri 10/237:00 am -
1 stop10h 01m
Mon 10/267:59 pm -
2 stops19h 14m
Deal found 9/5![Multiple Airlines logo]()
$341
One-way flights from Denver to BillingsSearch for one-way flight options from Denver to Billings. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Denver to Billings. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Tue 10/2010:44 pm -
1 stop14h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 9/5. 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.
Thu 11/51:10 pm -
2 stops20h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:38 pm -
1 stop26h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$179
This United Airlines deal was found by Cheapflights users on 9/5. 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 11/51:38 pm -
Nonstop1h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$194
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/197:35 pm -
Nonstop1h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:11 pm -
2 stops24h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$234
This Alaska Airlines deal was found by Cheapflights users on 9/5. 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.
Fri 11/67:03 am -
1 stop28h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Alaska Airlines logo]()
$237
Find flight deals from Denver to Billings
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Billings (BIL). 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 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $279 (United Airlines) |
One-way from | $122 (Kiwi.com) |
Popular in | August |
Cheapest in | October |
Average price | $279 |
Good round-trip deal | $289 or less |
Good one-way deal | $278 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to Billings 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 7,457,451 searches. Data last updated September 9, 2026.
Use the filters below to find and compare flights from Denver to Billings that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverBillings
DEN Denver Intl - BIL Billings Logan Intl
DENBIL
Denver Intl
Thu 11/5
7:30 am-9:14 am
1 stop25h 44m
Billings Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$164
DenverBillings
DEN Denver Intl - BIL Billings Logan Intl
DENBIL
Denver Intl
Thu 11/5
1:38 pm-3:22 pm
Nonstop1h 44m
Billings Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$194
Quickest round-trip
DenverBillings
DEN Denver Intl - BIL Billings Logan Intl
DENBIL
Denver Intl
Mon 10/19
7:35 pm-9:10 pm
Nonstop1h 35m
Billings Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$219
DenverBillings
DEN Denver Intl - BIL Billings Logan Intl
DENBIL
Denver Intl
Fri 11/6
1:55 pm-11:15 am
2 stops21h 20m
Billings Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$243
DenverBillings
DEN Denver Intl - BIL Billings Logan Intl
DENBIL
Denver Intl
Tue 11/17
7:33 am-11:15 am
2 stops27h 42m
Billings Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$258
DenverBillings
DEN Denver Intl - BIL Billings Logan Intl
DENBIL
Denver Intl
Tue 10/20
3:35 pm-5:16 pm
Nonstop1h 41m
Billings Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$259
DenverBillings
DEN Denver Intl - BIL Billings Logan Intl
DENBIL
Denver Intl
Sun 10/4
7:35 pm-9:10 pm
Nonstop1h 35m
Billings Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$259
DenverBillings
DEN Denver Intl - BIL Billings Logan Intl
DENBIL
Denver Intl
Tue 11/17
7:40 am-12:18 pm
1 stop4h 38m
Billings Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$266
DenverBillings
DEN Denver Intl - BIL Billings Logan Intl
DENBIL
Denver Intl
Mon 11/16
7:33 am-11:15 am
2 stops27h 42m
Billings Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$268
DenverBillings
DEN Denver Intl - BIL Billings Logan Intl
DENBIL
Denver Intl
Thu 10/22
7:35 pm-9:10 pm
Nonstop1h 35m
Billings Logan Intl
Sun 10/25
5:00 am-6:42 am
Nonstop1h 42m
$299
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Denver to Billings
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 Denver to Billings in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Denver-Billings flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Billings flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Billings flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-Billings 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 Denver-Billings 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 Denver to Billings
Have a flexible travel schedule? Discover the best time to fly to Billings from Denver with our price prediction graph.
DEN-BIL
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 Denver to Billings
Prices
Airlines
What is the cheapest month to book a flight from Denver to Billings?
Currently, October is the cheapest month in which you can book a flight from Denver to Billings (average of $224). Flying from Denver to Billings in August is currently the most expensive (average of $404). 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 DEN to BIL?
Find hourly flight availability from Denver to Billings. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 9, 2026.
A simple way to save on the total cost of your ticket is to fly from Denver to Billings at noon. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the afternoon.
Reviews of airlines servicing Billings
Get insights into the airlines that provide service to Billings. 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 Billings. Reviews last updated September 9, 2026.
Read through reviews of airlines operating flights from Denver to Billings, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
6.7
Comfort
7.3
Boarding
7.7
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentMichelle,Dec 2025
DEN - MKE
Food
6.7
Comfort
7.3
Boarding
7.7
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentMichelle,Dec 2025
DEN - MKE
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Top airline flying from Denver to Billings
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$189 | Average$295 | FlexibilityNo cancel fee | On-time69% |