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$38+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
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 September 14, 2025.

Round-trip from

$73
(Frontier)

One-way from

$38
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$199

Good round-trip deal

$133 or less

Good one-way deal

$131 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. 24% potential increase in price ($93 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($14 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 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 September 14, 2025.

This Frontier deal was found by Cheapflights users on 9/14. 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.
Fri 10/39:38 amDEN - BOI
Nonstop1h 59mFrontier
Thu 10/912:28 pmBOI - DEN
Nonstop2h 00mFrontier
Deal found 9/14$73
This Frontier deal was found by Cheapflights users on 9/12. 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 10/309:53 amDEN - BOI
Nonstop1h 55mFrontier
Sun 11/212:33 pmBOI - DEN
Nonstop2h 00mFrontier
Deal found 9/12$74
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/287:00 amDEN - BOI
1 stop8h 12mMultiple Airlines
Sun 11/212:33 pmBOI - DEN
Nonstop2h 00mMultiple Airlines
Deal found 9/12$116
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/287:00 amDEN - BOI
1 stop8h 12mMultiple Airlines
Thu 10/3012:33 pmBOI - DEN
Nonstop2h 00mMultiple Airlines
Deal found 9/12$117
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:46 pmDEN - BOI
1 stop5h 13mMultiple Airlines
Sun 11/212:33 pmBOI - DEN
Nonstop2h 00mMultiple Airlines
Deal found 9/12$123
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/167:25 pmDEN - BOI
Nonstop1h 59mUnited Airlines
Sat 10/185:39 pmBOI - DEN
Nonstop2h 01mUnited Airlines
Deal found 9/12$133
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/293:37 pmDEN - BOI
1 stop6h 43mAlaska Airlines
Sat 11/15:54 amBOI - DEN
1 stop4h 41mAlaska Airlines
Deal found 9/12$136
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:25 pmDEN - BOI
1 stop7h 51mDelta
Tue 11/42:00 pmBOI - DEN
1 stop4h 56mDelta
Deal found 9/12$137
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/293:37 pmDEN - BOI
1 stop6h 43mAlaska Airlines
Sun 11/25:28 amBOI - DEN
1 stop5h 59mAlaska Airlines
Deal found 9/12$142
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:46 pmDEN - BOI
1 stop5h 13mAlaska Airlines
Mon 11/36:28 amBOI - DEN
1 stop5h 59mAlaska Airlines
Deal found 9/12$148
This Southwest deal was found by Cheapflights users on 9/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/318:30 amDEN - BOI
Nonstop1h 55mSouthwest
Sun 11/25:00 amBOI - DEN
Nonstop2h 00mSouthwest
Deal found 9/12$149
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:55 amGJT - BOI
1 stop4h 22mDelta
Sun 11/28:55 amBOI - GJT
1 stop3h 42mDelta
Deal found 9/12$249

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 September 14, 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 10/30

9:53 am-11:48 am

Nonstop1h 55m

Boise Air Term. Gowen Fld

Sun 11/2

12:33 pm-2:33 pm

Nonstop2h 00m

$73

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Wed 10/29

3:37 pm-10:20 pm

1 stop6h 43m

Boise Air Term. Gowen Fld

Tue 11/4

5:54 am-10:35 am

1 stop4h 41m

$136

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Sat 10/11

3:00 pm-7:07 pm

1 stop4h 07m

Boise Air Term. Gowen Fld

Wed 10/15

4:46 pm-11:14 pm

1 stop6h 28m

$137

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Wed 10/29

6:25 am-1:20 pm

1 stop6h 55m

Boise Air Term. Gowen Fld

Wed 11/5

4:00 pm-11:50 pm

1 stop7h 50m

$137

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 10/30

6:46 pm-11:59 pm

1 stop5h 13m

Boise Air Term. Gowen Fld

Sun 11/2

12:33 pm-2:33 pm

Nonstop2h 00m

$139

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 10/30

6:46 pm-11:59 pm

1 stop5h 13m

Boise Air Term. Gowen Fld

Tue 11/4

5:54 am-10:35 am

1 stop4h 41m

$142

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Mon 11/3

5:30 am-10:17 am

1 stop4h 47m

Boise Air Term. Gowen Fld

Wed 11/5

4:46 pm-11:14 pm

1 stop6h 28m

$153

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 10/16

9:48 am-11:43 am

Nonstop1h 55m

Boise Air Term. Gowen Fld

Sun 10/19

12:28 pm-2:28 pm

Nonstop2h 00m

$155

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 10/28

12:49 pm-9:59 pm

2 stops9h 10m

Boise Air Term. Gowen Fld

Tue 11/4

4:57 pm-11:59 pm

1 stop7h 02m

$176

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 10/28

8:20 am-9:59 pm

2 stops13h 39m

Boise Air Term. Gowen Fld

Sat 11/1

5:54 am-10:35 am

1 stop4h 41m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 47 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 $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 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 September 14, 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 September 14, 2025.

The most flights from USCO to BOI are scheduled on a Friday (18 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

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, 8 users have taken a look at flights from Colorado to Boise Air Term. Gowen Fld.

  • How long is the flight from Colorado to Boise?

    Airlines like Frontier, Alaska Airlines, and Delta fly from Colorado to Boise in about 1h 55m. The time it takes to get you to your destination can typically vary by up to 4h 48m. The distance from Colorado to Boise is about 647 mi. This flight may include one or multiple stops.

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

    $59 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $59 and $69, 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 SkyWest Airlines (79%), United Airlines (77%) or Air Canada (72%) 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 $64. While the most popular route (Denver Intl - Boise Air Term. Gowen Fld) can be booked for $108 on average, our data indicates $239 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 $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 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 September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$62Average$133FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$277FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$168Average$235FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$197Average$369FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$198Average$407FlexibilityNo cancel feeOn-time69%

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