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$26+ Cheap flights from Boise to Denver (BOI - DEN)

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 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — DEN
nov. 26 — dic. 31
mié. 11/26
mié. 12/3
1 adult, Economy
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Find cheap flights from Boise to Denver 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”

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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Denver Intl are usually found in October or August, booked 64 days in advance, depart on a Thursday or Friday and return on a Thursday

Find flight deals from Boise to Denver

Cheapest flights from Boise to Denver
Explore the most affordable flight options available from Boise to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 27, 2025.

This Expedia deal was found by Cheapflights users on 10/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/45:59 pmBOI - DEN
1 stop6h 00mMultiple Airlines
dom. 12/79:42 amDEN - BOI
Nonstop2h 07mMultiple Airlines
Deal found 10/27$126
This Kiwi.com deal was found by Cheapflights users on 10/25. 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.
sáb. 12/2012:54 pmBOI - DEN
Nonstop2h 01mFrontier
sáb. 12/279:52 amDEN - BOI
Nonstop2h 07mFrontier
Deal found 10/25$136
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
lun. 12/2210:41 pmBOI - DEN
1 stop10h 23mMultiple Airlines
jue. 12/259:36 amDEN - BOI
Nonstop2h 07mMultiple Airlines
Deal found 10/26$142
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
vie. 12/1910:41 pmBOI - DEN
1 stop13h 38mMultiple Airlines
jue. 12/259:36 amDEN - BOI
Nonstop2h 07mMultiple Airlines
Deal found 10/26$144
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
sáb. 12/2012:54 pmBOI - DEN
Nonstop2h 01mMultiple Airlines
jue. 12/253:46 pmDEN - BOI
1 stop5h 24mMultiple Airlines
Deal found 10/26$145
This CheapOair deal was found by Cheapflights users on 10/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/2112:38 pmBOI - DEN
Nonstop2h 01mFrontier
sáb. 12/279:52 amDEN - BOI
Nonstop2h 07mFrontier
Deal found 10/25$147
This Expedia deal was found by Cheapflights users on 10/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/115:45 amBOI - DEN
1 stop5h 00mMultiple Airlines
dom. 12/149:42 amDEN - BOI
Nonstop2h 07mMultiple Airlines
Deal found 10/25$148
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
dom. 12/2112:38 pmBOI - DEN
Nonstop2h 01mMultiple Airlines
jue. 12/256:02 amDEN - BOI
1 stop5h 11mMultiple Airlines
Deal found 10/26$156
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
mar. 11/2512:48 pmBOI - DEN
Nonstop2h 04mFrontier
vie. 11/289:49 amDEN - BOI
Nonstop2h 04mFrontier
Deal found 10/27$159
This Frontier deal was found by Cheapflights users on 10/27. 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.
jue. 12/1812:38 pmBOI - DEN
Nonstop2h 01mFrontier
sáb. 12/279:52 amDEN - BOI
Nonstop2h 07mFrontier
Deal found 10/27$163

Cheap flight deals from Boise to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Denver (DEN). 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 octubre 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$125
(Kiwi.com)

One-way from

$26
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$221

Good round-trip deal

$315 or less

Good one-way deal

$167 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Denver Intl flights.
Search Deals
From Boise Air Term. Gowen Fld to Denver Intl
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Denver Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Boise Air Term. Gowen Fld to Denver Intl.
Search Deals
Price to beat on a one-way flight from Boise Air Term. Gowen Fld to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Denver 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 octubre 27, 2025.
Use the filters below to find and compare flights from Boise to Denver that are best for you.

Fly from

Boise

Fly to

Denver

Route

Depart

Return

Price

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

dom. 11/23

12:48 pm-2:52 pm

Nonstop2h 04m

Denver Intl

vie. 11/28

9:49 am-11:53 am

Nonstop2h 04m

$167

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

sáb. 1/3

12:54 pm-2:55 pm

Nonstop2h 01m

Denver Intl

lun. 1/5

6:02 am-11:13 am

1 stop5h 11m

$190

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

vie. 12/12

3:54 pm-12:24 am

1 stop8h 30m

Denver Intl

dom. 12/14

3:54 pm-10:11 pm

1 stop6h 17m

$197

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

jue. 12/11

5:45 am-10:45 am

1 stop5h 00m

Denver Intl

dom. 12/14

6:00 am-3:26 pm

1 stop9h 26m

$215

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

jue. 1/15

5:40 am-10:53 am

1 stop5h 13m

Denver Intl

dom. 1/18

8:04 am-11:58 pm

2 stops15h 54m

$215

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

lun. 1/5

5:40 pm-7:30 pm

Nonstop1h 50m

Denver Intl

mié. 1/7

6:20 am-12:25 pm

1 stop6h 05m

$231

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

mié. 12/3

1:25 pm-8:35 pm

1 stop7h 10m

Denver Intl

mié. 12/10

1:05 pm-3:05 pm

Nonstop2h 00m

$231

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

jue. 12/18

3:45 pm-11:59 pm

1 stop8h 14m

Denver Intl

lun. 12/22

6:00 am-11:59 pm

1 stop17h 59m

$231

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

lun. 11/17

7:01 am-11:51 pm

1 stop16h 50m

Denver Intl

mar. 11/18

7:00 am-6:34 pm

2 stops11h 34m

$234

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

mar. 11/18

4:20 pm-11:59 pm

2 stops7h 39m

Denver Intl

vie. 11/21

6:00 am-11:44 pm

1 stop17h 44m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 21 results
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Compare providers for flights from Boise to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Denver in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-Denver flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-Denver flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boise-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-Denver flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boise to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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 Denver

How far ahead should I book a flight from Boise to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Denver. Price data was last updated on October 24, 2025.

The price you pay for your flight from Boise to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Boise to Denver (average of $58). Flying from Boise to Denver in January is currently the most expensive (average of $212). 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 DEN?

Find hourly flight availability from Boise to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 27, 2025.

A simple way to save on the total cost of your ticket is to fly from Boise to Denver in the evening. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Boise to Denver. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their Boise to Denver flight should consider departing on Saturday evenings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated octubre 27, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Boise to Denver. 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
11,193 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,193 reviews
Alaska Airlines
8.0
Very good
11,193 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
11,193 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,995 reviews
Alaska Airlines
8.0
Very good
11,193 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,997 reviews
Alaska Airlines
8.0
Very good
11,193 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Frontier
5.8
Fair
3,123 reviews
Alaska Airlines
8.0
Very good
11,193 reviews

Food

7.1

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

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

    You will need to book a flight from Boise Air Term. Gowen Fld to Denver Intl if you want to fly from Boise to Denver. At least 5 different airlines have flights from Air Term. Gowen Fld (BOI) to Denver Intl (DEN) on a regular basis. There are 11 flights to Denver from the Boise airport per day. If you manage to book one that is nonstop, then you can expect the flight time from BOI to DEN to be around 1h 54m.

  • How popular is this Boise to Denver flight route?

    Flights from Boise Air Term. Gowen Fld to Denver Intl have been viewed 96 times in the past calendar month.

  • How long is the flight from Boise to Denver?

    Airlines like Frontier, Delta, and Alaska Airlines fly from Boise to Denver in about 2h 04m. The time it takes to get you to your destination can typically vary by up to 6h 26m. The distance between Boise and Denver 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 flying from Boise to Denver round-trip?

    Currently priced at $59, Frontier will fly you from Boise to Denver and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Alaska Airlines - these airlines can fly you to your destination from $136 and $154, respectively. These flights start at 78% lower than the current average price 3 months from now.

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

    Before booking your flight to Denver from Boise, check out the most reliable airlines to get you to your destination on time: Frontier (91%), SkyWest Airlines (90%), United Airlines( 84%).

  • What are the cheapest flights from Boise to Denver?

    Looking for the cheapest flight from Boise to Denver? While on average our users pay $928, our data indicates the cheapest price to be $110. The most popular route (Boise Air Term. Gowen Fld - Denver Intl), is priced around $125.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Boise to Denver (average of $58). Flying from Boise to Denver in January is currently the most expensive (average of $212). 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
Black Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Boise to Denver

Discover the top 5 airlines that operate flights from Boise to Denver. 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 octubre 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$140FlexibilityNo cancel feeOn-time62%
DeltaCheapest$136Average$246FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$154Average$428FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$183Average$304FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$194Average$284FlexibilityNo cancel feeOn-time63%

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