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$75+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — DEN
Jul 23 — Jul 301
Wed 7/23
Wed 7/30
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Denver Intl are usually found in May or June, booked 64 days in advance, depart on a Thursday or Wednesday and return on a Sunday

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 July 18, 2025.

Round-trip from

$114
(Frontier)

One-way from

$75
(Priceline)

Popular in

March

Cheapest in

May

Average price

$297

Good round-trip deal

$312 or less

Good one-way deal

$147 or less
From Boise Air Term. Gowen Fld to Denver Intl
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One-way flight from Boise Air Term. Gowen Fld to Denver Intl
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Highest demand for flights based on searches. 2% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Boise Air Term. Gowen Fld to Denver Intl.
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Price to beat on a one-way flight from Boise Air Term. Gowen Fld to Denver Intl.
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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 July 18, 2025.

This Priceline deal was found by Cheapflights users on 7/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:36 pmBOI - DEN
Nonstop2h 00mFrontier
Sun 8/179:50 amDEN - BOI
Nonstop1h 56mFrontier
Deal found 7/17$112
This Trip.com deal was found by Cheapflights users on 7/17. 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 8/316:35 amBOI - DEN
1 stop7h 31mMultiple Airlines
Sun 9/79:38 amDEN - BOI
Nonstop1h 59mMultiple Airlines
Deal found 7/17$191
This Hawaiian Airlines deal was found by Cheapflights users on 7/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/125:43 pmBOI - DEN
1 stop6h 16mHawaiian Airlines
Tue 8/196:00 amDEN - BOI
1 stop7h 58mHawaiian Airlines
Deal found 7/15$198
This Southwest deal was found by Cheapflights users on 7/16. 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 8/95:10 amBOI - DEN
Nonstop1h 50mSouthwest
Sat 8/167:45 pmDEN - BOI
Nonstop1h 55mSouthwest
Deal found 7/16$199
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/163:59 pmBOI - DEN
1 stop8h 00mAlaska Airlines
Thu 8/219:23 pmDEN - BOI
1 stop12h 05mAlaska Airlines
Deal found 7/14$207
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:00 pmBOI - DEN
1 stop4h 11mDelta
Mon 8/115:45 amDEN - BOI
1 stop4h 00mDelta
Deal found 7/15$219
This American Airlines deal was found by Cheapflights users on 7/17. 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.
Wed 9/101:57 pmBOI - DEN
2 stops9h 08mAmerican Airlines
Sat 9/133:07 pmDEN - BOI
1 stop4h 55mAmerican Airlines
Deal found 7/17$224
This United Airlines deal was found by Cheapflights users on 7/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:42 pmBOI - DEN
Nonstop1h 57mUnited Airlines
Sun 8/177:35 pmDEN - BOI
Nonstop1h 59mUnited Airlines
Deal found 7/15$231

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 July 18, 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

Thu 8/14

12:36 pm-2:36 pm

Nonstop2h 00m

Denver Intl

Sun 8/17

9:50 am-11:46 am

Nonstop1h 56m

$112

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Sun 8/31

6:35 am-2:06 pm

1 stop7h 31m

Denver Intl

Sun 9/7

9:38 am-11:37 am

Nonstop1h 59m

$191

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Tue 8/12

5:43 pm-11:59 pm

1 stop6h 16m

Denver Intl

Tue 8/19

6:00 am-1:58 pm

1 stop7h 58m

$198

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Sat 8/9

5:10 am-7:00 am

Nonstop1h 50m

Denver Intl

Sat 8/16

7:45 pm-9:40 pm

Nonstop1h 55m

$199

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Sat 8/16

4:50 pm-11:59 pm

1 stop7h 09m

Denver Intl

Wed 8/20

9:23 pm-9:28 am

1 stop12h 05m

$207

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Thu 8/7

5:45 am-9:24 am

1 stop3h 39m

Denver Intl

Mon 8/11

5:45 am-9:45 am

1 stop4h 00m

$219

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Wed 9/10

1:57 pm-11:05 pm

2 stops9h 08m

Denver Intl

Sat 9/13

3:07 pm-8:02 pm

1 stop4h 55m

$224

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Fri 8/15

5:42 pm-7:39 pm

Nonstop1h 57m

Denver Intl

Sun 8/17

7:35 pm-9:34 pm

Nonstop1h 59m

$231

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Sun 9/21

12:22 pm-2:45 pm

Nonstop2h 23m

$75

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Wed 11/19

5:54 am-10:35 am

1 stop4h 41m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Showing 1-10 of 15 results
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The best insider tips for Boise to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Boise to Denver trip
Airlines
United Airlines

United's Economy Plus offers extra legroom seats towards the front of the economy cabin.


United's MileagePlus allows pooling miles for family or friends, enhancing travel flexibility.

Read more about United Airlinesby Harriet Baskas
Southwest

Enjoy free snacks and non-alcoholic beverages, plus Wi-Fi for a fee on Southwest flights.


Southwest offers two free checked bags, including oversized items like skis or golf clubs.

Read more about Southwestby Marisa Garcia
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Marisa Garcia

Marisa Garcia

Expert on Southwest

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more

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 July 11, 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, October is the cheapest month in which you can book a flight from Boise to Denver (average of $197). Flying from Boise to Denver 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 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 July 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Boise to Denver in the afternoon. If you’re flexible enough to do this you can expect to save up to 17% on your trip compared to booking a flight in the evening.

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 July 13, 2025.

Travelers seeking maximum savings on their Boise to Denver flight should consider departing on Monday 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.

Weekly flight availability from Boise to Denver

Explore weekly flight availability from Boise to Denver. 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 July 18, 2025.

The most flights from BOI to DEN are scheduled on a Monday (17 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

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 July 18, 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
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Delta
8.0
Very good
7,958 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Hawaiian Airlines
7.8
Good
2,581 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
United Airlines
7.4
Good
8,864 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

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 13 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 50m.

  • How popular is this Boise to Denver flight route?

    Flights from Boise Air Term. Gowen Fld to Denver Intl have been viewed 97 times in the past calendar month.

  • What are the cheapest airlines flying from Boise to Denver round-trip?

    Currently priced at $114, 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 Hawaiian Airlines and Southwest - these airlines can fly you to your destination from $198 and $199, respectively. These flights start at 61% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $75. However, be on the lookout for offers from Hawaiian Airlines and Southwest, as they are both options that can get you from Boise to Denver for a low price.

  • 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: SkyWest Airlines (99%), United Airlines (82%), Air Canada( 70%).

  • What are the cheapest flights from Boise to Denver?

    Looking for the cheapest flight from Boise to Denver? While on average our users pay $934, our data indicates the cheapest price to be $96. The most popular route (Boise Air Term. Gowen Fld - Denver Intl), is priced around $169.

  • 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, October is the cheapest month in which you can book a flight from Boise to Denver (average of $197). Flying from Boise to Denver 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.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Brighton
Silverthorne
Golden
Thornton
Frisco
Broomfield
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs

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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 July 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$150FlexibilityNo cancel feeOn-time62%
DeltaCheapest$148Average$260FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$154Average$261FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$198Average$318FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$207Average$284FlexibilityNo cancel feeOn-time63%

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