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$38+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Boise Air Term. Gowen Fld are usually found in July or May, booked 62 days in advance, depart on a Sunday or Thursday and return on a Thursday

Cheap 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 September 11, 2025.

Round-trip from

$73
(Kiwi.com)

One-way from

$38
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$267

Good round-trip deal

$133 or less

Good one-way deal

$131 or less
From Denver Intl to Boise Air Term. Gowen Fld
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One-way flight from Denver Intl to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 21% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($13 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 Denver Intl to Boise Air Term. Gowen Fld.
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Price to beat on a one-way flight from Denver Intl to Boise Air Term. Gowen Fld.
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Find flight deals from Denver to Boise

Cheapest flights from Denver to Boise
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 September 11, 2025.

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.
Fri 10/39:38 amDEN - BOI
Nonstop1h 59mFrontier
Sun 10/512:22 pmBOI - DEN
Nonstop2h 23mFrontier
Deal found 9/10$73
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:38 amDEN - BOI
Nonstop1h 59mFrontier
Sun 10/512:22 pmBOI - DEN
Nonstop2h 23mFrontier
Deal found 9/10$75
This CheapOair deal was found by Cheapflights users on 9/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:48 amDEN - BOI
Nonstop1h 55mFrontier
Sun 10/2612:28 pmBOI - DEN
Nonstop2h 00mFrontier
Deal found 9/11$108
This Orbitz deal was found by Cheapflights users on 9/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:02 pmDEN - BOI
1 stop4h 55mMultiple Airlines
Thu 10/2312:28 pmBOI - DEN
Nonstop2h 00mMultiple Airlines
Deal found 9/11$112
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/99:48 amDEN - BOI
Nonstop1h 55mFrontier
Sun 10/1912:28 pmBOI - DEN
Nonstop2h 00mFrontier
Deal found 9/9$117
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:48 amDEN - BOI
Nonstop1h 55mMultiple Airlines
Mon 10/276:05 pmBOI - DEN
1 stop5h 54mMultiple Airlines
Deal found 9/10$118
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:46 pmDEN - BOI
1 stop5h 13mMultiple Airlines
Sun 11/1612:28 pmBOI - DEN
Nonstop2h 00mMultiple Airlines
Deal found 9/10$121
This Expedia deal was found by Cheapflights users on 9/11. 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 10/29:23 pmDEN - BOI
1 stop12h 05mMultiple Airlines
Sun 10/512:22 pmBOI - DEN
Nonstop2h 23mMultiple Airlines
Deal found 9/11$125
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:31 amDEN - BOI
1 stop5h 40mAlaska Airlines
Mon 11/36:05 pmBOI - DEN
1 stop5h 54mAlaska Airlines
Deal found 9/10$130
This Frontier deal was found by Cheapflights users on 9/11. 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 10/169:48 amDEN - BOI
Nonstop1h 55mFrontier
Sun 10/1912:28 pmBOI - DEN
Nonstop2h 00mFrontier
Deal found 9/11$131

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 September 11, 2025.
Use the filters below to find and compare flights from Denver to Boise that are best for you.

Fly from

Denver

Fly to

Boise

Route

Depart

Return

Price

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 10/16

7:45 am-9:42 am

Nonstop1h 57m

Boise Air Term. Gowen Fld

Sat 10/18

9:30 am-11:35 am

Nonstop2h 05m

$133

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 10/28

9:25 pm-11:20 pm

Nonstop1h 55m

Boise Air Term. Gowen Fld

Mon 11/3

2:40 pm-4:30 pm

Nonstop1h 50m

$133

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Sat 10/4

5:45 am-10:48 am

1 stop5h 03m

Boise Air Term. Gowen Fld

Tue 10/7

5:55 pm-10:25 pm

1 stop4h 30m

$137

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Wed 10/8

6:25 am-1:20 pm

1 stop6h 55m

Boise Air Term. Gowen Fld

Wed 10/15

6:00 am-9:29 am

1 stop3h 29m

$137

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Sat 10/25

7:02 pm-11:57 pm

1 stop4h 55m

Boise Air Term. Gowen Fld

Mon 10/27

6:05 pm-11:59 pm

1 stop5h 54m

$142

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Fri 11/14

7:00 am-3:12 pm

1 stop8h 12m

Boise Air Term. Gowen Fld

Mon 11/17

6:05 pm-11:59 pm

1 stop5h 54m

$148

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Fri 10/17

7:25 pm-9:24 pm

Nonstop1h 59m

Boise Air Term. Gowen Fld

Mon 10/20

7:00 am-8:55 am

Nonstop1h 55m

$149

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Fri 11/14

7:55 am-10:00 am

Nonstop2h 05m

Boise Air Term. Gowen Fld

Sun 11/16

5:40 pm-7:30 pm

Nonstop1h 50m

$149

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Fri 2/20

3:57 pm-5:55 pm

Nonstop1h 58m

Boise Air Term. Gowen Fld

Sun 2/22

5:00 am-7:00 am

Nonstop2h 00m

$149

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Fri 10/24

5:30 am-10:17 am

1 stop4h 47m

Boise Air Term. Gowen Fld

Tue 10/28

4:00 pm-11:49 pm

1 stop7h 49m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 22 results
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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.
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

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to Boise. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Denver to Boise, you should look to book at least 62 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, October is the cheapest month in which you can book a flight from Denver to Boise (average of $314). Flying from Denver to Boise in June is currently the most expensive (average of $398). 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 September 11, 2025.

One of the essential ways to save on airfare from Denver to Boise is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 23% 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 September 7, 2025.

Travelers seeking maximum savings on their Denver to Boise flight should consider departing on Sunday mornings when fares are most often at their lowest. Sunday evenings 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 September 11, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,248 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,177 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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.

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

    You will need to book a flight from Denver Intl to Boise Air Term. Gowen Fld if you want to fly from Denver to Boise. At least 5 different airlines have flights from Denver Intl (DEN) to Air Term. Gowen Fld (BOI) on a regular basis. There are 13 flights to Boise from the Denver airport per day. If you manage to book one that is nonstop, then you can expect the flight time from DEN to BOI to be around 1h 55m.

  • How popular is this Denver to Boise flight route?

    Flights from Denver Intl to Boise Air Term. Gowen Fld have been viewed 8 times in the past calendar month.

  • How long is the flight from Denver to Boise?

    For as low as $133, United Airlines can have you in Boise from Denver in 1h 55m. The distance between Denver and Boise is about 647 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from Denver to Boise is Frontier. Our recent data shows that you can find tickets from as low as $62 on this airline. Additional options worth looking into are Delta and Alaska Airlines, starting at $98 and $168 round-trip. These flights start at 79% lower than the current average price 3 months from now.

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

    The top 3 most reliable airlines when flying from Denver to Boise are SkyWest Airlines (79%), United Airlines (77%) and Air Canada (72%).

  • What are the cheapest flights from Denver to Boise?

    While on average a flight from Denver to Boise is generally $239, our data shows the cheapest flight currently is $64. When looking at the most popular route, (Denver Intl - Boise Air Term. Gowen Fld), you can expect to pay $113 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver to Boise 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 Denver to Boise?

    Currently, October is the cheapest month in which you can book a flight from Denver to Boise (average of $314). Flying from Denver to Boise in June is currently the most expensive (average of $398). 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 Boise?

Book flights to Boise if you plan to visit one of these locations
Ontario
Meridian
Nampa
Caldwell
McCall

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Top 5 airlines flying from Denver to Boise

Discover the top 5 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$62Average$133FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$243FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$168Average$235FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$197Average$287FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$214Average$335FlexibilityNo cancel feeOn-time69%

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