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$99+ Cheap flights from Colorado to Boise (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
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Cheap flight deals from Colorado to Boise

Keep the following information in mind while searching for Colorado to Boise flight deals. Data was 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 Colorado to Boise Air Term. Gowen Fld
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One-way flight from Colorado to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 18% potential increase in price ($70 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 June 2025
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Price to beat on a round-trip flight from Colorado to Boise Air Term. Gowen Fld.
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Price to beat on a one-way flight from Colorado to Boise Air Term. Gowen Fld.
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Find flight deals from Colorado to Boise

Cheapest flights from Colorado to Boise
Explore the most affordable flight options available from Colorado 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 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.
Mon 8/186:25 amCOS - BOI
1 stop4h 30mSouthwest
Mon 8/254:30 pmBOI - COS
1 stop6h 05mSouthwest
Deal found 6/11$177
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.
Fri 8/85:55 pmCOS - BOI
1 stop6h 14mDelta
Mon 8/116:00 pmBOI - COS
1 stop4h 18mDelta
Deal found 6/10$227
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/26:00 amGJT - BOI
1 stop3h 29mDelta
Fri 8/16:00 pmBOI - GJT
1 stop4h 33mDelta
Deal found 6/11$229
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 Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/295:40 pmCOS - BOI
1 stop19h 10mAllegiant Air
Sun 8/316:48 pmBOI - COS
1 stop22h 07mAllegiant Air
Deal found 6/10$258
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 Colorado 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 Colorado to Boise that are best for you.

Fly from

Colorado

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

Colorado SpringsBoise

COS - BOI

COSBOI

Colorado Springs

Mon 8/18

6:25 am-10:55 am

1 stop4h 30m

Boise Air Term. Gowen Fld

Mon 8/25

4:30 pm-10:35 pm

1 stop6h 05m

$177

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

Colorado SpringsBoise

COS - BOI

COSBOI

Colorado Springs

Fri 8/8

5:55 pm-12:09 am

1 stop6h 14m

Boise Air Term. Gowen Fld

Mon 8/11

6:00 pm-10:18 pm

1 stop4h 18m

$227

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

Grand JunctionBoise

GJT - BOI

GJTBOI

Grand Junction Regnl

Wed 7/2

6:00 am-9:29 am

1 stop3h 29m

Boise Air Term. Gowen Fld

Fri 8/1

6:00 pm-10:33 pm

1 stop4h 33m

$229

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

Colorado SpringsBoise

COS - BOI

COSBOI

Colorado Springs

Fri 8/29

5:40 pm-12:50 pm

1 stop19h 10m

Boise Air Term. Gowen Fld

Sun 8/31

6:48 pm-4:55 pm

1 stop22h 07m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 32 results
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Best time to book a flight from Colorado to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Colorado 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 Colorado to Boise

What is the cheapest month to book a flight from Colorado to Boise?

Currently, October is the cheapest month in which you can book a flight from Colorado to Boise (average of $314). Flying from Colorado 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 CO to BOI?

Find hourly flight availability from Colorado 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.

When flying from Colorado to Boise, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Colorado to Boise

Explore weekly flight availability from Colorado 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 USCO 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.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Colorado to Boise by reading reviews from past customers. 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

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

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

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

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

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

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

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

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

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

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 Colorado to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Boise from Colorado?

    Boise Air Term. Gowen Fld (BOI) is the airport you will fly into if you book a flight from Colorado to Boise. It is only a 3.3 mi journey from Air Term. Gowen Fld (BOI) to Boise’s city center.

  • How popular is this Colorado to Boise flight route?

    Within the past month, 2 users have taken a look at flights from Colorado to Boise Air Term. Gowen Fld.

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

    $99 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and Southwest, with prices starting from $105 and $106, respectively.

  • What are the most popular routes from Colorado to Boise?

    The most popular route from Colorado to Boise is Denver Intl - Boise Air Term. Gowen Fld. You may also consider Colorado Springs - Boise Air Term. Gowen Fld or Grand Junction Regnl - Boise Air Term. Gowen Fld.

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

    Consider Frontier (88%), SkyWest Airlines (81%) or United Airlines (78%) when booking your flight. These represent the most reliable airlines when flying from Colorado to Boise.

  • What are the cheapest flights from Colorado to Boise?

    Looking at all options, your cheapest flight can be booked for $59. While the most popular route (Denver Intl - Boise Air Term. Gowen Fld) can be booked for $194 on average our data indicates $161 when flying from Colorado to Boise.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Colorado to Boise (average of $314). Flying from Colorado 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 Colorado?

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

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Alternative routes for Colorado to Boise

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Colorado to Boise

Discover the top 5 airlines that operate flights from Colorado 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$280FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$168Average$235FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$197Average$377FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$198Average$406FlexibilityNo cancel feeOn-time69%

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