$54+ Cheap flights from Denver to Boise (DEN - BOI)
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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Sep 3 — Sep 101
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Boise 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 Denver Intl to Boise Air Term. Gowen Fld are usually found in February or January, booked 84 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from Denver to Boise
Cheapest
Best
Last-minute
One-way
Cheapest flights from Denver to BoiseExplore the most affordable flight options available from Denver to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 4, 2026.
Explore the most affordable flight options available from Denver to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 4, 2026.
This Expedia deal was found by Cheapflights users on 8/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/309:29 am -
Nonstop2h 00m
Sun 9/612:24 pm -
Nonstop2h 06m
Deal found 8/2![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Wed 9/3010:50 pm -
1 stop15h 05m
Mon 10/123:52 pm -
1 stop21h 52m
Deal found 8/2![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 10/17:30 am -
1 stop6h 25m
Fri 10/22:50 pm -
1 stop19h 17m
Deal found 8/3![Frontier logo]()
$181
This Priceline deal was found by Cheapflights users on 8/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:08 am -
1 stop5h 04m
Sun 9/612:24 pm -
Nonstop2h 06m
Deal found 8/2![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/107:30 am -
1 stop6h 25m
Fri 9/112:50 pm -
1 stop19h 17m
Deal found 7/31![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Wed 9/96:38 pm -
1 stop19h 17m
Fri 9/112:50 pm -
1 stop8h 54m
Deal found 7/31![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 9/287:30 am -
1 stop6h 25m
Thu 10/12:50 pm -
1 stop8h 54m
Deal found 8/3![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 10/86:23 am -
1 stop8h 34m
Sun 10/113:52 pm -
2 stops29h 37m
Deal found 7/31![Frontier logo]()
$194
This United Airlines deal was found by Cheapflights users on 7/30. 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 9/27:40 am -
Nonstop1h 55m
Mon 9/76:30 am -
Nonstop2h 01m
Deal found 7/30![United Airlines logo]()
$197
This Frontier deal was found by Cheapflights users on 8/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:29 am -
Nonstop2h 00m
Tue 9/11:24 pm -
Nonstop2h 06m
Deal found 8/1![Frontier logo]()
$198
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:29 am -
Nonstop2h 00m
Tue 9/86:00 am -
1 stop4h 52m
Deal found 7/30![Multiple Airlines logo]()
$199
Best flights from Denver to BoiseDiscover carefully curated flight deals from Denver to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 4, 2026.
Discover carefully curated flight deals from Denver to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 4, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 8/258:22 am -
1 stop7h 09m
Mon 8/316:00 am -
1 stop5h 07m
Deal found 7/30![Alaska Airlines logo]()
$217
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/47:40 am -
Nonstop1h 55m
Sun 9/610:31 am -
Nonstop2h 02m
Deal found 8/3![United Airlines logo]()
$252
This Southwest deal was found by Cheapflights users on 8/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:25 pm -
2 stops7h 35m
Tue 9/86:25 am -
2 stops7h 35m
Deal found 8/3![Southwest logo]()
$273
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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 9/248:08 am -
1 stop5h 06m
Tue 9/296:49 pm -
1 stop26h 24m
Deal found 8/1![Alaska Airlines logo]()
$256
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:00 am -
1 stop6h 15m
Sun 9/66:20 am -
2 stops7h 30m
Deal found 7/30![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 8/1. 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 10/178:25 pm -
Nonstop2h 08m
Mon 10/1910:30 am -
Nonstop1h 58m
Deal found 8/1![United Airlines logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 8/1. 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 9/126:17 am -
1 stop14h 03m
Sat 9/196:23 am -
2 stops14h 50m
Deal found 8/1![Alaska Airlines logo]()
$288
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/177:40 am -
Nonstop1h 55m
Mon 9/215:40 pm -
Nonstop2h 01m
Deal found 8/3![United Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/18:32 pm -
Nonstop2h 08m
Tue 9/810:31 am -
Nonstop2h 02m
Deal found 8/4![United Airlines logo]()
$289
This Alaska Airlines deal was found by Cheapflights users on 8/2. 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 8/287:08 pm -
1 stop4h 47m
Sun 8/308:25 pm -
1 stop14h 42m
Deal found 8/2![Alaska Airlines logo]()
$298
Last-minute flights from Denver to BoiseDiscover last-minute flight deals from Denver to Boise. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Boise. Data last updated August 4, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:29 am -
Nonstop2h 00m
Tue 9/11:24 pm -
Nonstop2h 06m
Deal found 8/1![Frontier logo]()
$198
This Southwest deal was found by Cheapflights users on 7/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/291:35 pm -
Nonstop1h 55m
Sat 9/53:25 pm -
1 stop4h 50m
Deal found 7/30![Southwest logo]()
$207
This Expedia deal was found by Cheapflights users on 8/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/309:29 am -
Nonstop2h 00m
Sun 9/612:24 pm -
Nonstop2h 06m
Deal found 8/2![Frontier logo]()
$173
This United Airlines deal was found by Cheapflights users on 7/30. 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 9/27:40 am -
Nonstop1h 55m
Mon 9/76:30 am -
Nonstop2h 01m
Deal found 7/30![United Airlines logo]()
$197
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:29 am -
Nonstop2h 00m
Tue 9/86:00 am -
1 stop4h 52m
Deal found 7/30![Multiple Airlines logo]()
$199
This Priceline deal was found by Cheapflights users on 8/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:08 am -
1 stop5h 04m
Sun 9/612:24 pm -
Nonstop2h 06m
Deal found 8/2![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Wed 9/96:38 pm -
1 stop19h 17m
Fri 9/112:50 pm -
1 stop8h 54m
Deal found 7/31![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/107:30 am -
1 stop6h 25m
Fri 9/112:50 pm -
1 stop19h 17m
Deal found 7/31![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/107:30 am -
1 stop6h 25m
Sun 9/132:50 pm -
2 stops24h 15m
Deal found 7/31![Frontier logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 9/287:30 am -
1 stop6h 25m
Thu 10/12:50 pm -
1 stop8h 54m
Deal found 8/3![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 8/2. 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.
Wed 9/3010:50 pm -
1 stop15h 05m
Mon 10/123:52 pm -
1 stop21h 52m
Deal found 8/2![Frontier logo]()
$179
One-way flights from Denver to BoiseSearch for one-way flight options from Denver to Boise. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
Search for one-way flight options from Denver to Boise. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This Frontier deal was found by Cheapflights users on 7/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:29 am -
Nonstop2h 00m
Deal found 7/31![Frontier logo]()
$54
This Kiwi.com deal was found by Cheapflights users on 8/1. 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.
Wed 10/710:50 pm -
1 stop16h 07m
Deal found 8/1![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Wed 10/2810:30 pm -
1 stop16h 27m
Deal found 7/31![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/287:30 am -
1 stop6h 25m
Deal found 7/31![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Wed 9/3010:50 pm -
1 stop15h 05m
Deal found 7/31![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 10/17:30 am -
1 stop6h 25m
Deal found 8/3![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 7/31. 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.
Wed 9/96:38 pm -
1 stop19h 17m
Deal found 7/31![Frontier logo]()
$86
This Frontier deal was found by Cheapflights users on 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:59 am -
1 stop4h 58m
Deal found 7/30![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 9/217:30 am -
1 stop6h 25m
Deal found 8/1![Frontier logo]()
$92
Find flight deals from Denver to Boise
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Boise (BOI). 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 August 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $173 (Expedia) |
One-way from | $54 (Frontier) |
Popular in | July |
Cheapest in | February |
Average price | $273 |
Good round-trip deal | $214 or less |
Good one-way deal | $170 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to Boise 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 August 4, 2026.
Use the filters below to find and compare flights from Denver to Boise that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Tue 8/25
8:22 am-3:31 pm
1 stop7h 09m
Boise Air Term. Gowen Fld
Mon 8/31
6:00 am-11:07 am
1 stop5h 07m
$217
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Fri 9/4
7:40 am-9:35 am
Nonstop1h 55m
Boise Air Term. Gowen Fld
Sun 9/6
10:31 am-12:33 pm
Nonstop2h 02m
$252
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Thu 9/24
8:08 am-1:14 pm
1 stop5h 06m
Boise Air Term. Gowen Fld
Tue 9/29
6:49 pm-9:13 pm
1 stop26h 24m
$256
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Sat 9/5
1:25 pm-9:00 pm
2 stops7h 35m
Boise Air Term. Gowen Fld
Tue 9/8
6:25 am-2:00 pm
2 stops7h 35m
$273
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Thu 9/3
9:00 am-3:15 pm
1 stop6h 15m
Boise Air Term. Gowen Fld
Sun 9/6
6:20 am-1:50 pm
2 stops7h 30m
$287
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Sat 9/12
6:17 am-8:20 pm
1 stop14h 03m
Boise Air Term. Gowen Fld
Sat 9/19
6:23 am-9:13 pm
2 stops14h 50m
$288
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Sat 10/17
8:25 pm-10:33 pm
Nonstop2h 08m
Boise Air Term. Gowen Fld
Mon 10/19
10:30 am-12:28 pm
Nonstop1h 58m
$289
Quickest round-trip
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Thu 9/17
7:40 am-9:35 am
Nonstop1h 55m
Boise Air Term. Gowen Fld
Mon 9/21
5:40 pm-7:41 pm
Nonstop2h 01m
$289
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Tue 9/1
8:32 pm-10:40 pm
Nonstop2h 08m
Boise Air Term. Gowen Fld
Tue 9/8
10:31 am-12:33 pm
Nonstop2h 02m
$289
DenverBoise
DEN - BOI
DENBOI
Denver Intl
Fri 8/28
7:08 pm-11:55 pm
1 stop4h 47m
Boise Air Term. Gowen Fld
Sun 8/30
8:25 pm-11:07 am
1 stop14h 42m
$298
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Denver to Boise
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 Boise in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Denver-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Boise flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-Boise 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-Boise 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 Boise
Have a flexible travel schedule? Discover the best time to fly to Boise from Denver with our price prediction graph.
DEN-BOI
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 Boise
Prices
Airlines
How far ahead should I book a flight from Denver to Boise?
To ensure you get the cheapest price possible for a flight from Denver to Boise, you should look to book at least 82 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Denver to Boise?
Currently, February is the cheapest month in which you can book a flight from Denver to Boise (average of $133). Flying from Denver to Boise in July is currently the most expensive (average of $329). 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 BOI?
Find hourly flight availability from Denver to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 4, 2026.
One of the essential ways to save on airfare from Denver to Boise is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 31% on airfare.
What is the cheapest day to fly from Denver to Boise?
Use this chart to determine the cheapest time to fly round-trip from Denver to Boise. Price data was last updated on August 1, 2026.
Travelers seeking maximum savings on their Denver to Boise flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Boise
Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated August 4, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Denver to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Feb 2026
DEN - BDL
Related info for your journey
Find useful and relevant information for your journey from Denver to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boise?
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Top 4 airlines flying from Denver to Boise
Discover the top 4 airlines that operate flights from Denver to Boise. 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 August 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$129 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$68 | Average$202 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$176 | Average$330 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$189 | Average$331 | FlexibilityNo cancel fee | On-time63% |