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$38+ Cheap flights from Boise (BOI) to Colorado

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — DEN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Boise to Colorado

Keep the following information in mind while searching for Boise to Colorado flight deals. Data was last updated September 15, 2025.

Round-trip from

$108
(Frontier)

One-way from

$38
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$287

Good round-trip deal

$302 or less

Good one-way deal

$167 or less
From Boise Air Term. Gowen Fld to Colorado
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One-way flight from Boise Air Term. Gowen Fld to Colorado
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Highest demand for flights based on searches. 5% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 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 Boise Air Term. Gowen Fld to Colorado.
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Price to beat on a one-way flight from Boise Air Term. Gowen Fld to Colorado.
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Find flight deals from Boise to Colorado

Cheapest flights from Boise to Colorado
Explore the most affordable flight options available from Boise to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Frontier deal was found by Cheapflights users on 9/13. 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 12/1212:59 pmBOI - DEN
Nonstop2h 01mFrontier
Sun 12/149:57 amDEN - BOI
Nonstop2h 07mFrontier
Deal found 9/13$108
This Trip.com deal was found by Cheapflights users on 9/13. 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.
Sun 11/1612:28 pmBOI - DEN
Nonstop2h 00mMultiple Airlines
Mon 11/176:46 pmDEN - BOI
1 stop5h 13mMultiple Airlines
Deal found 9/13$111
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 10/284:57 pmBOI - DEN
1 stop7h 02mHawaiian Airlines
Tue 11/47:00 amDEN - BOI
1 stop5h 36mHawaiian Airlines
Deal found 9/12$125
This Frontier deal was found by Cheapflights users on 9/15. 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 10/912:28 pmBOI - DEN
Nonstop2h 00mFrontier
Sun 10/129:48 amDEN - BOI
Nonstop1h 55mFrontier
Deal found 9/15$130
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Fri 9/2612:22 pmBOI - DEN
Nonstop2h 23mFrontier
Sun 9/289:38 amDEN - BOI
Nonstop1h 59mFrontier
Deal found 9/13$148
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.
Thu 9/2512:22 pmBOI - DEN
Nonstop2h 23mFrontier
Sun 9/289:38 amDEN - BOI
Nonstop1h 59mFrontier
Deal found 9/14$149
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Fri 9/2612:22 pmBOI - DEN
Nonstop2h 23mMultiple Airlines
Mon 9/2910:00 amDEN - BOI
1 stop10h 31mMultiple Airlines
Deal found 9/13$158
This Frontier deal was found by Cheapflights users on 9/13. 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 10/212:22 pmBOI - DEN
Nonstop2h 23mFrontier
Sun 10/59:38 amDEN - BOI
Nonstop1h 59mFrontier
Deal found 9/13$159
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/1212:28 pmBOI - DEN
Nonstop2h 00mFrontier
Sun 10/199:48 amDEN - BOI
Nonstop1h 55mFrontier
Deal found 9/13$161
This Southwest deal was found by Cheapflights users on 9/13. 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.
Sun 11/165:00 amBOI - DEN
Nonstop2h 00mSouthwest
Mon 11/178:10 amDEN - BOI
Nonstop2h 05mSouthwest
Deal found 9/13$163
This Southwest deal was found by Cheapflights users on 9/13. 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.
Sat 10/116:45 amBOI - COS
1 stop8h 10mSouthwest
Wed 10/155:30 pmCOS - BOI
1 stop5h 50mSouthwest
Deal found 9/13$241
This Southwest deal was found by Cheapflights users on 9/13. 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 10/138:15 pmBOI - COS
1 stop4h 20mSouthwest
Mon 10/206:15 pmCOS - BOI
2 stops6h 25mSouthwest
Deal found 9/13$246

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Colorado 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 15, 2025.
Use the filters below to find and compare flights from Boise to Colorado that are best for you.

Fly from

Boise

Fly to

Colorado

Route

Depart

Return

Price

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Sun 11/16

5:00 am-7:00 am

Nonstop2h 00m

Denver Intl

Mon 11/17

8:10 am-10:15 am

Nonstop2h 05m

$163

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Tue 10/28

9:59 am-7:06 pm

2 stops9h 07m

Denver Intl

Tue 11/4

7:00 am-12:36 pm

1 stop5h 36m

$176

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Fri 11/14

1:50 pm-6:55 pm

1 stop5h 05m

Denver Intl

Mon 11/17

6:05 am-1:09 pm

1 stop7h 04m

$197

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Thu 10/23

4:46 pm-11:14 pm

1 stop6h 28m

Denver Intl

Mon 10/27

6:25 am-1:20 pm

1 stop6h 55m

$197

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Fri 11/7

4:00 pm-11:49 pm

1 stop7h 49m

Denver Intl

Sun 11/9

6:05 am-1:09 pm

1 stop7h 04m

$197

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Wed 11/12

6:28 am-12:27 pm

1 stop5h 59m

Denver Intl

Sat 12/6

3:42 pm-11:50 pm

1 stop8h 08m

$198

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Thu 10/16

6:00 am-9:29 am

1 stop3h 29m

Denver Intl

Sat 10/18

6:25 am-1:20 pm

1 stop6h 55m

$204

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Wed 10/22

7:13 am-2:00 pm

1 stop6h 47m

Denver Intl

Sat 10/25

7:02 pm-11:57 pm

1 stop4h 55m

$208

BoiseColorado Springs

BOI - COS

BOICOS

Boise Air Term. Gowen Fld

Sat 10/18

9:30 am-2:44 pm

1 stop5h 14m

Colorado Springs

Sat 10/25

7:30 am-1:33 pm

1 stop6h 03m

$241

BoiseColorado Springs

BOI - COS

BOICOS

Boise Air Term. Gowen Fld

Mon 10/13

8:15 pm-12:35 am

1 stop4h 20m

Colorado Springs

Mon 10/20

8:10 pm-12:40 am

1 stop4h 30m

$241

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 35 results
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Best time to book a flight from Boise to Colorado

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

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

Currently, October is the cheapest month in which you can book a flight from Boise to Colorado (average of $197). Flying from Boise to Colorado in March is currently the most expensive (average of $278). 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 BOI to CO?

Find hourly flight availability from Boise to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boise to Colorado as you normally would.

Weekly flight availability from Boise to Colorado

Explore weekly flight availability from Boise to Colorado. 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 15, 2025.

The most flights from BOI to USCO are scheduled on a Friday (18 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (6 on average).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated September 15, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Boise to Colorado have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,172 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Boise to Colorado. 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 from for flights from Boise to Colorado?

    For a flight from Boise to Colorado, you will be flying from Air Term. Gowen Fld. Boise Air Term. Gowen Fld (BOI) is just 3.3 mi from the center of the city.

  • How popular is this Boise to Colorado flight route?

    Within the past month, 100 users have taken a look at flights from Boise Air Term. Gowen Fld to Colorado.

  • How long is the flight from Boise to Colorado?

    A quick flight from Boise to Colorado can take about 2h. Southwest provides one of the quickest options available for as low as $163. The distance between Boise and Colorado is about 647 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $46. Delta flights start at $69 while deals on Southwest start at $74 one-way.

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

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

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

    Consider SkyWest Airlines (85%), United Airlines (79%) or Air Canada (74%) when booking your flight. These represent the most reliable airlines when flying from Boise to Colorado.

  • What are the cheapest flights from Boise to Colorado?

    While on average a flight from Boise to Colorado is generally $747, our data shows the cheapest flight currently is $79. When looking at the most popular route, (Boise Air Term. Gowen Fld - Denver Intl), you can expect to pay $111 for that flight.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Boise to Colorado (average of $197). Flying from Boise to Colorado in March is currently the most expensive (average of $278). 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.

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Alternative routes for Boise to Colorado

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

Discover the top 5 airlines that operate flights from Boise to Colorado. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$62Average$137FlexibilityNo cancel feeOn-time62%
DeltaCheapest$136Average$277FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$154Average$407FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$194Average$456FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$196Average$330FlexibilityNo cancel feeOn-time63%

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