HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boise

$99+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 May or April, booked 52 days in advance, depart on a Sunday or Tuesday 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 June 12, 2025.

Round-trip from

$149
(Frontier)

One-way from

$99
(Frontier)

Popular in

December

Cheapest in

May

Average price

$295

Good round-trip deal

$116 or less

Good one-way deal

$105 or less
From Denver Intl to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Denver Intl to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Denver Intl to Boise Air Term. Gowen Fld.
Search Deals
Price to beat on a one-way flight from Denver Intl to Boise Air Term. Gowen Fld.
Search Deals

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 June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/12. 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 10/29:48 amDEN - BOI
Nonstop1h 55mFrontier
Sun 10/512:53 pmBOI - DEN
Nonstop2h 00mFrontier
Deal found 6/12$149
This Agoda.com deal was found by Cheapflights users on 6/12. 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:40 amDEN - BOI
1 stop5h 10mHawaiian Airlines
Mon 10/67:21 amBOI - DEN
1 stop6h 39mHawaiian Airlines
Deal found 6/12$191
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:17 pmDEN - BOI
1 stop5h 42mAlaska Airlines
Tue 10/77:21 amBOI - DEN
1 stop6h 39mAlaska Airlines
Deal found 6/11$210
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:45 amDEN - BOI
Nonstop1h 57mUnited Airlines
Mon 10/67:00 amBOI - DEN
Nonstop1h 55mUnited Airlines
Deal found 6/10$211
This Agoda.com deal was found by Cheapflights users on 6/11. 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:48 amDEN - BOI
Nonstop1h 55mMultiple Airlines
Mon 10/67:21 amBOI - DEN
1 stop6h 39mMultiple Airlines
Deal found 6/11$214
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/58:30 amDEN - BOI
1 stop6h 40mSouthwest
Tue 8/121:15 pmBOI - DEN
Nonstop1h 55mSouthwest
Deal found 6/11$221
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:30 amDEN - BOI
1 stop3h 50mDelta
Wed 10/83:05 pmBOI - DEN
1 stop7h 53mDelta
Deal found 6/10$231
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Thu 7/106:45 pmDEN - BOI
1 stop4h 48mAmerican Airlines
Wed 7/161:48 pmBOI - DEN
2 stops9h 21mAmerican Airlines
Deal found 6/12$266

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 June 12, 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

9:48 am-11:43 am

Nonstop1h 55m

Boise Air Term. Gowen Fld

Thu 9/11

12:53 pm-2:53 pm

Nonstop2h 00m

$149

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Wed 9/3

11:40 am-4:50 pm

1 stop5h 10m

Boise Air Term. Gowen Fld

Mon 9/15

4:34 pm-9:47 pm

1 stop5h 13m

$210

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 8/5

8:40 am-10:35 am

Nonstop1h 55m

Boise Air Term. Gowen Fld

Wed 8/13

4:05 pm-6:00 pm

Nonstop1h 55m

$211

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 8/12

7:35 pm-9:34 pm

Nonstop1h 59m

Boise Air Term. Gowen Fld

Sun 8/17

5:42 pm-7:39 pm

Nonstop1h 57m

$228

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 9/2

3:45 pm-9:42 pm

1 stop5h 57m

Boise Air Term. Gowen Fld

Mon 9/15

5:45 pm-10:33 pm

1 stop4h 48m

$231

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Fri 9/5

11:40 am-4:50 pm

1 stop5h 10m

Boise Air Term. Gowen Fld

Sat 9/13

5:45 pm-11:59 pm

1 stop6h 14m

$239

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 7/10

6:45 pm-11:33 pm

1 stop4h 48m

Boise Air Term. Gowen Fld

Wed 7/16

1:48 pm-11:09 pm

2 stops9h 21m

$266

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 7/17

9:50 am-11:46 am

Nonstop1h 56m

Boise Air Term. Gowen Fld

Sun 7/20

6:00 am-10:37 am

1 stop4h 37m

$342

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 8/14

9:50 am-11:46 am

Nonstop1h 56m

$99

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 8/5

11:33 am-4:48 pm

1 stop5h 15m

$105

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 June 9, 2025.

To ensure you get the cheapest price possible for a flight from Denver to Boise, you should look to book at least 52 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 $395). 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 June 12, 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 12% 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 June 8, 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 June 12, 2025.

The most flights from DEN to BOI are scheduled on a Monday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Boise by month

Plan your trip to Boise by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

Temperature in Boise by month

Plan your trip to Boise by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boise, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Denver to Boise. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 2 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 $149 on this airline. Additional options worth looking into are Alaska Airlines and Southwest, starting at $210 and $211 round-trip. These flights start at 51% 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 $99. However, be on the lookout for offers from Alaska Airlines and Southwest, 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 Frontier (88%), SkyWest Airlines (81%) and United Airlines (78%).

  • What are the cheapest flights from Denver to Boise?

    While on average a flight from Denver to Boise is generally $161, our data shows the cheapest flight currently is $59. When looking at the most popular route, (Denver Intl - Boise Air Term. Gowen Fld), you can expect to pay $194 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 $395). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Denver to Boise

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Spokane flights
Denver to Jackson flights
Denver to Idaho Falls flights
Denver to Hailey flights
Denver to West Yellowstone flights
Colorado Springs to Spokane flights
Grand Junction to Spokane flights
Colorado Springs to Boise flights
Denver to Lewiston flights
Grand Junction to Boise flights
Montrose to Spokane flights
Durango to Spokane flights
Colorado Springs to Idaho Falls flights
Denver to Twin Falls flights
Hayden to Jackson flights
Colorado Springs to Jackson flights
Hayden to Boise flights
Aspen to Boise flights
Denver to Pocatello flights
Aspen to Hailey flights
Aspen to Spokane flights
Grand Junction to Jackson flights
Durango to Idaho Falls flights
Alamosa to Spokane flights
Gunnison to Boise flights
Vail to Spokane flights
Colorado Springs to Hailey flights
Colorado Springs to Lewiston flights
Colorado Springs to Pocatello flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$128FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$236FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$168Average$235FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$197Average$292FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$210Average$317FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.