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$41+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
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 May or April, 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 July 28, 2025.

Round-trip from

$118
(Frontier)

One-way from

$41
(Frontier)

Popular in

December

Cheapest in

May

Average price

$258

Good round-trip deal

$200 or less

Good one-way deal

$134 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. 19% potential increase in price ($72 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 July 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 July 28, 2025.

This CheapOair deal was found by Cheapflights users on 7/28. 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.
Thu 8/219:36 amDEN - BOI
Nonstop2h 02mFrontier
Sun 8/2412:33 pmBOI - DEN
Nonstop2h 15mFrontier
Deal found 7/28$106
This Alaska Airlines deal was found by Cheapflights users on 7/25. 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 8/219:23 pmDEN - BOI
1 stop12h 05mAlaska Airlines
Mon 8/257:17 pmBOI - DEN
1 stop16h 53mAlaska Airlines
Deal found 7/25$189
This Orbitz deal was found by Cheapflights users on 7/25. 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.
Thu 8/219:36 amDEN - BOI
Nonstop2h 02mMultiple Airlines
Mon 8/254:34 pmBOI - DEN
1 stop5h 13mMultiple Airlines
Deal found 7/25$190
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/237:15 pmDEN - BOI
Nonstop2h 00mUnited Airlines
Sat 8/305:39 pmBOI - DEN
Nonstop2h 01mUnited Airlines
Deal found 7/26$199
This Southwest deal was found by Cheapflights users on 7/25. 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.
Mon 9/110:10 pmDEN - BOI
Nonstop1h 55mSouthwest
Tue 9/97:25 amBOI - DEN
2 stops8h 30mSouthwest
Deal found 7/25$204
This Delta deal was found by Cheapflights users on 7/25. 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 8/215:45 amDEN - BOI
1 stop4h 00mDelta
Tue 8/2610:45 amBOI - DEN
1 stop4h 05mDelta
Deal found 7/25$209
This Trip.com deal was found by Cheapflights users on 7/27. 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.
Fri 9/51:06 pmDEN - BOI
1 stop5h 10mHawaiian Airlines
Sat 9/136:35 amBOI - DEN
1 stop5h 35mHawaiian Airlines
Deal found 7/27$210
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/262:35 pmDEN - BOI
1 stop5h 35mAmerican Airlines
Wed 8/275:15 pmBOI - DEN
1 stop4h 50mAmerican Airlines
Deal found 7/27$219

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 July 28, 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 9/4

9:38 am-11:37 am

Nonstop1h 59m

Boise Air Term. Gowen Fld

Sun 9/14

12:22 pm-2:45 pm

Nonstop2h 23m

$118

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 8/21

10:10 pm-12:05 am

Nonstop1h 55m

Boise Air Term. Gowen Fld

Mon 8/25

5:00 am-6:50 am

Nonstop1h 50m

$189

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 8/21

9:36 am-11:38 am

Nonstop2h 02m

Boise Air Term. Gowen Fld

Mon 8/25

4:34 pm-9:47 pm

1 stop5h 13m

$190

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Wed 9/3

6:17 pm-12:08 am

1 stop5h 51m

Boise Air Term. Gowen Fld

Tue 9/16

8:00 am-2:06 pm

1 stop6h 06m

$198

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Sat 8/23

7:15 pm-9:15 pm

Nonstop2h 00m

Boise Air Term. Gowen Fld

Sat 8/30

5:39 pm-7:40 pm

Nonstop2h 01m

$199

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 8/21

5:45 am-9:45 am

1 stop4h 00m

Boise Air Term. Gowen Fld

Tue 8/26

10:45 am-2:50 pm

1 stop4h 05m

$209

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Fri 9/5

1:06 pm-6:16 pm

1 stop5h 10m

Boise Air Term. Gowen Fld

Sat 9/13

6:35 am-12:10 pm

1 stop5h 35m

$210

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 8/26

2:35 pm-8:10 pm

1 stop5h 35m

Boise Air Term. Gowen Fld

Wed 8/27

5:15 pm-10:05 pm

1 stop4h 50m

$219

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 9/11

9:38 am-11:37 am

Nonstop1h 59m

$41

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Mon 8/25

10:29 am-5:11 pm

1 stop6h 42m

$87

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 16 results
1
2

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 July 25, 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 $399). 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 July 28, 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 afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 17% 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 July 27, 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.

Weekly flight availability from Denver to Boise

Explore weekly flight availability from Denver to Boise. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2025.

The most flights from DEN to BOI are scheduled on a Friday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (13 on average).

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 July 28, 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

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,237 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,604 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,892 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 16 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 7 times in the past calendar month.

  • 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 $118 on this airline. Additional options worth looking into are Southwest and Alaska Airlines, starting at $189 and $198 round-trip. These flights start at 61% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Denver to Boise one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $41. However, be on the lookout for offers from Alaska Airlines and United Airlines, as they are both options that can get you from Denver to Boise for a low price.

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

    The top 3 most reliable airlines when flying from Denver to Boise are United Airlines (75%), SkyWest Airlines (74%) and Air Canada (68%).

  • What are the cheapest flights from Denver to Boise?

    While on average a flight from Denver to Boise is generally $236, our data shows the cheapest flight currently is $69. When looking at the most popular route, (Denver Intl - Boise Air Term. Gowen Fld), you can expect to pay $154 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 $399). 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
Meridian
Nampa
Ontario
McCall
Caldwell

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Alternative routes for Denver to Boise

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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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$73Average$150FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$249FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$168Average$235FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$197Average$289FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$219Average$330FlexibilityNo cancel feeOn-time69%

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