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$70+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Apr 4 — Apr 111
Sat 4/4
Sat 4/11
1 adult, Economy
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Cheap 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 March 5, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/29:10 am
DEN
-
BOI
Nonstop1h 58m
Frontier
Thu 4/912:03 pm
BOI
-
DEN
Nonstop2h 03m
Frontier
Deal found 3/3$141
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 4/29:10 am
DEN
-
BOI
Nonstop1h 58m
Frontier
Sun 4/512:03 pm
BOI
-
DEN
Nonstop2h 03m
Frontier
Deal found 3/1$149
This Frontier deal was found by Cheapflights users on 3/1. 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 4/99:10 am
DEN
-
BOI
Nonstop1h 58m
Frontier
Sun 4/1212:03 pm
BOI
-
DEN
Nonstop2h 03m
Frontier
Deal found 3/1$150
This Booking.com deal was found by Cheapflights users on 3/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:10 am
DEN
-
BOI
Nonstop1h 58m
Frontier
Sun 4/1911:53 am
BOI
-
DEN
Nonstop2h 03m
Frontier
Deal found 3/4$151
This Kiwi.com deal was found by Cheapflights users on 3/1. 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.
Sun 3/299:10 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Sun 4/512:03 pm
BOI
-
DEN
Nonstop2h 03m
Frontier
Deal found 3/1$157
This Frontier deal was found by Cheapflights users on 2/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/199:10 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Sun 3/2912:15 pm
BOI
-
DEN
Nonstop2h 00m
Frontier
Deal found 2/28$158
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 3/269:10 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Thu 4/212:03 pm
BOI
-
DEN
Nonstop2h 03m
Frontier
Deal found 3/3$159
This Frontier deal was found by Cheapflights users on 3/3. 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 5/219:15 am
DEN
-
BOI
Nonstop2h 01m
Frontier
Sun 5/2412:21 pm
BOI
-
DEN
Nonstop2h 05m
Frontier
Deal found 3/3$168
This Booking.com deal was found by Cheapflights users on 3/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/159:10 am
DEN
-
BOI
Nonstop2h 10m
Frontier
Thu 3/1912:15 pm
BOI
-
DEN
Nonstop2h 00m
Frontier
Deal found 3/4$169
This Delta deal was found by Cheapflights users on 3/2. 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 7/166:56 pm
GJT
-
BOI
1 stop5h 00m
Delta
Sat 7/185:45 pm
BOI
-
GJT
1 stop4h 05m
Delta
Deal found 3/2$211
This Delta deal was found by Cheapflights users on 3/1. 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 6/116:56 pm
GJT
-
BOI
1 stop5h 00m
Delta
Sat 6/135:45 pm
BOI
-
GJT
1 stop4h 05m
Delta
Deal found 3/1$249
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/183:26 pm
COS
-
BOI
1 stop6h 08m
United Airlines
Tue 4/215:00 am
BOI
-
COS
1 stop3h 49m
United Airlines
Deal found 3/5$259

Find flight deals from Colorado to Boise

Keep the following information in mind while searching for Colorado to Boise flight deals. Data was last updated March 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$141
(Kiwi.com)

One-way from

$70
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$263

Good round-trip deal

$118 or less

Good one-way deal

$138 or less
Provider with most accurate pricing for Denver Intl-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Boise Air Term. Gowen Fld flights.
Search Deals
From Colorado to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Colorado to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Colorado to Boise Air Term. Gowen Fld.
Search Deals
Price to beat on a one-way flight from Colorado to Boise Air Term. Gowen Fld.
Search Deals

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 March 5, 2026.
Use the filters below to find and compare flights from Colorado to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 4/21

1:20 pm-9:24 pm

1 stop8h 04m

Boise Air Term. Gowen Fld

Sat 4/25

5:40 am-12:17 pm

1 stop6h 37m

$183

Grand JunctionBoise

GJT - BOI

GJTBOI

Grand Junction Regnl

Thu 8/13

6:56 pm-11:56 pm

1 stop5h 00m

Boise Air Term. Gowen Fld

Sat 8/15

5:45 pm-9:50 pm

1 stop4h 05m

$211

Grand JunctionBoise

GJT - BOI

GJTBOI

Grand Junction Regnl

Fri 4/3

5:15 pm-10:11 pm

1 stop4h 56m

Boise Air Term. Gowen Fld

Mon 4/6

6:15 pm-9:53 pm

1 stop3h 38m

$231

Grand JunctionBoise

GJT - BOI

GJTBOI

Grand Junction Regnl

Thu 7/16

6:56 pm-11:56 pm

1 stop5h 00m

Boise Air Term. Gowen Fld

Sat 7/18

5:45 pm-9:50 pm

1 stop4h 05m

$231

Grand JunctionBoise

GJT - BOI

GJTBOI

Grand Junction Regnl

Fri 5/1

5:25 pm-9:56 pm

1 stop4h 31m

Boise Air Term. Gowen Fld

Tue 5/5

12:52 pm-6:35 pm

1 stop5h 43m

$231

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Mon 4/13

1:16 pm-11:47 pm

1 stop10h 31m

Boise Air Term. Gowen Fld

Thu 4/16

6:04 pm-11:56 pm

1 stop5h 52m

$240

Grand JunctionBoise

GJT - BOI

GJTBOI

Grand Junction Regnl

Thu 6/11

6:56 pm-11:56 pm

1 stop5h 00m

Boise Air Term. Gowen Fld

Sat 6/13

5:45 pm-9:50 pm

1 stop4h 05m

$249

Colorado SpringsBoise

COS - BOI

COSBOI

Colorado Springs

Sat 4/18

3:26 pm-9:34 pm

1 stop6h 08m

Boise Air Term. Gowen Fld

Tue 4/21

5:00 am-8:49 am

1 stop3h 49m

$259

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Sun 4/5

6:15 pm-10:11 pm

1 stop3h 56m

Boise Air Term. Gowen Fld

Thu 4/9

9:00 am-5:30 pm

1 stop8h 30m

$260

AspenBoise

ASE - BOI

ASEBOI

Aspen Pitkin County

Wed 3/18

5:16 pm-10:43 pm

1 stop5h 27m

Boise Air Term. Gowen Fld

Sun 3/22

6:24 am-1:08 pm

1 stop6h 44m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $54). Flying from Colorado to Boise in April is currently the most expensive (average of $197). 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 March 5, 2026.

When flying from Colorado to Boise, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 34% versus a flight in the evening.

What is the cheapest day to fly from Colorado to Boise?

Use this chart to determine the cheapest time to fly round-trip from Colorado to Boise. Price data was last updated on February 21, 2026.

Travelers seeking maximum savings on their Colorado to Boise flight should consider departing on Thursday mornings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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, 9 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 Delta, Alaska Airlines, and United Airlines fly from Colorado to Boise in about 6h 08m. The time it takes to get you to your destination can typically vary by up to 4h 23m. The distance from Colorado to Boise is about 682 mi. This flight may include one or multiple stops.

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

    $40 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and Southwest, with prices starting from $78 and $94, 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 (92%), SkyWest Airlines (88%) or United Airlines (88%) 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 $40. While the most popular route (Denver Intl - Boise Air Term. Gowen Fld) can be booked for $183 on average, our data indicates $289 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 $54). Flying from Colorado to Boise in April is currently the most expensive (average of $197). 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 4 airlines flying from Colorado to Boise

Discover the top 4 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 March 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$126FlexibilityNo cancel feeOn-time62%
DeltaCheapest$68Average$245FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$158Average$360FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$350FlexibilityNo cancel feeOn-time63%

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