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$44+ Cheap flights from Idaho to Denver (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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — DEN
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Idaho to Denver

Keep the following information in mind while searching for Idaho to Denver flight deals. Data was last updated febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(Delta)

One-way from

$44
(Kiwi.com)

Popular in

November

Cheapest in

August

Average price

$300

Good round-trip deal

$375 or less

Good one-way deal

$213 or less
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Denver Intl flights.
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From Idaho to Denver Intl
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One-way flight from Idaho to Denver Intl
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Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Idaho to Denver Intl.
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Price to beat on a one-way flight from Idaho to Denver Intl.
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Find flight deals from Idaho to Denver

Cheapest flights from Idaho to Denver
Explore the most affordable flight options available from Idaho to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This Delta deal was found by Cheapflights users on 2/20. 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.
mié. 4/26:10 amBOI - DEN
1 stop6h 53mDelta
jue. 4/106:10 amDEN - BOI
1 stop7h 15mDelta
Deal found 2/20$217
This Southwest deal was found by Cheapflights users on 2/20. 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.
lun. 3/104:35 pmBOI - DEN
2 stops8h 10mSouthwest
jue. 3/138:40 amDEN - BOI
1 stop7h 10mSouthwest
Deal found 2/20$222
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
sáb. 4/57:59 pmBOI - DEN
1 stop18h 54mAlaska Airlines
mar. 4/82:53 pmDEN - BOI
1 stop9h 06mAlaska Airlines
Deal found 2/20$226
This United Airlines deal was found by Cheapflights users on 2/20. 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.
mié. 5/75:25 pmBOI - DEN
Nonstop1h 59mUnited Airlines
sáb. 5/108:50 pmDEN - BOI
Nonstop2h 02mUnited Airlines
Deal found 2/20$228
This United Airlines deal was found by Cheapflights users on 2/19. 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.
jue. 3/202:40 pmJAC - DEN
Nonstop1h 41mUnited Airlines
mar. 3/257:30 pmDEN - JAC
Nonstop1h 34mUnited Airlines
Deal found 2/19$289
This Expedia deal was found by Cheapflights users on 2/20. 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. 6/1912:36 pmBOI - DEN
Nonstop1h 58mMultiple Airlines
dom. 6/227:00 amDEN - BOI
1 stop6h 45mMultiple Airlines
Deal found 2/20$296
This United Airlines deal was found by Cheapflights users on 2/19. 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.
jue. 3/1310:38 amIDA - DEN
Nonstop2h 07mUnited Airlines
jue. 3/133:15 pmDEN - IDA
Nonstop1h 48mUnited Airlines
Deal found 2/19$301
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
mié. 3/128:00 amIDA - DEN
1 stop13h 20mAlaska Airlines
mar. 3/187:00 amDEN - IDA
1 stop15h 36mAlaska Airlines
Deal found 2/19$302
This Delta deal was found by Cheapflights users on 2/19. 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.
mié. 3/127:05 amJAC - DEN
1 stop4h 13mDelta
sáb. 3/152:30 pmDEN - JAC
1 stop4h 36mDelta
Deal found 2/19$309
This United Airlines deal was found by Cheapflights users on 2/19. 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.
mié. 8/67:00 amSUN - DEN
Nonstop2h 08mUnited Airlines
mar. 8/1911:43 amDEN - SUN
Nonstop2h 01mUnited Airlines
Deal found 2/19$309
This American Airlines deal was found by Cheapflights users on 2/19. 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.
jue. 5/87:00 amIDA - DEN
1 stop8h 51mAmerican Airlines
vie. 5/96:00 amDEN - IDA
1 stop6h 29mAmerican Airlines
Deal found 2/19$312
This Delta deal was found by Cheapflights users on 2/19. 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.
mar. 4/112:30 pmLWS - DEN
1 stop5h 49mDelta
sáb. 4/55:45 amDEN - LWS
1 stop7h 05mDelta
Deal found 2/19$313

Find flights from Idaho to Denver within your budget

Customize your flight search to find flights from Idaho 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 febrero 20, 2025.

Fly from

Idaho

Fly to

Denver

Route

Depart

Return

Price

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

jue. 4/3

5:59 pm-10:27 pm

1 stop4h 28m

Denver Intl

mar. 4/8

6:10 am-1:25 pm

1 stop7h 15m

$217

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

lun. 3/10

4:35 pm-12:45 am

2 stops8h 10m

Denver Intl

jue. 3/13

8:40 am-3:50 pm

1 stop7h 10m

$222

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

sáb. 4/5

7:59 pm-2:53 pm

1 stop18h 54m

Denver Intl

mar. 4/8

2:53 pm-11:59 pm

1 stop9h 06m

$226

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

mié. 5/7

5:25 pm-7:24 pm

Nonstop1h 59m

Denver Intl

sáb. 5/10

9:51 am-4:21 pm

1 stop6h 30m

$228

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

jue. 8/7

12:36 pm-2:34 pm

Nonstop1h 58m

Denver Intl

dom. 8/10

9:50 am-11:47 am

Nonstop1h 57m

$233

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

mié. 4/9

2:20 pm-4:05 pm

Nonstop1h 45m

Denver Intl

lun. 4/14

7:46 am-9:32 am

Nonstop1h 46m

$259

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

mié. 4/2

6:55 pm-10:31 pm

1 stop3h 36m

Denver Intl

lun. 4/7

6:05 pm-10:30 pm

1 stop4h 25m

$279

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

sáb. 3/8

5:10 pm-11:49 pm

1 stop6h 39m

Denver Intl

mar. 3/11

5:08 pm-10:41 pm

1 stop5h 33m

$283

JacksonDenver

JAC - DEN

JACDEN

Jackson Hole

jue. 3/20

2:40 pm-4:21 pm

Nonstop1h 41m

Denver Intl

mar. 3/25

7:30 pm-9:04 pm

Nonstop1h 34m

$289

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

jue. 6/19

12:36 pm-2:34 pm

Nonstop1h 58m

Denver Intl

dom. 6/22

7:00 am-1:45 pm

1 stop6h 45m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 60 results
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Best time to book a flight from Idaho to Denver

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

Travel insights for flights from Idaho to Denver

Get recent, data-driven insights about flights from Idaho to Denver including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Idaho to Denver (average of $197). Flying from Idaho 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 ID to DEN?

Find hourly flight availability from Idaho 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 febrero 20, 2025.

When flying from Idaho to Denver, 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 Idaho to Denver

Explore weekly flight availability from Idaho 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 febrero 20, 2025.

The most flights from USID to DEN are scheduled on a Wednesday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 febrero 20, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Idaho to Denver. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

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

    Most people fly into Denver Intl (DEN) if they book a flight to Denver from Idaho. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

  • How popular is this Idaho to Denver flight route?

    This flight path from Idaho to Denver Intl was viewed by 87 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    The cheapest airlines for a one-way flight from Idaho to Denver are Allegiant Air ($44), Frontier ($54), and Hawaiian Airlines ($98).

  • What are the most popular routes from Idaho to Denver?

    While some choose either Boise Air Term. Gowen Fld - Denver Intl or Idaho Falls Fanning Field - Denver Intl, Spokane - Denver Intl is the most popular route from Idaho to Denver.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Idaho to Denver on time: Copa Airlines (87%), Lufthansa (80%), Southwest (76%).

  • What are the cheapest flights from Idaho to Denver?

    The cheapest flight price from Idaho to Denver is $140. On average you can expect to pay $865. The most popular route, (Spokane - Denver Intl), can usually be booked for $233.

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

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

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

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

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

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

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

Book flights to Idaho if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Broomfield
Silverthorne
Golden
Brighton
Keystone
Frisco
Wheat Ridge
Grand Lake
Idaho Springs
Greeley
Central City
Copper Mountain
Longmont
Thornton
Limon
Dillon

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Alternative routes for Idaho to Denver

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Top 4 airlines flying from Idaho to Denver

Discover the top 4 airlines that operate flights from Idaho 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$177Average$411FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$179Average$338FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$191Average$387FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$223Average$284FlexibilityNo cancel feeOn-time63%
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