How long is the flight from Idaho to Colorado?

Flight times from Idaho to Colorado vary, but if you’re flying out of Idaho Falls and flying into Denver (one of the most popular routes), then the duration is 1h 44m on average. Another popular route from Idaho to Colorado is flying from Boise to Denver, which will take roughly 1h 50m. Keep in mind that layovers or delays could extend your travel time.

How many flights depart from Idaho to Colorado on average per day?

The number of flights available between Idaho and Colorado is 37 per day as of August 2025. The most frequent departure time is 2:00PM, with 44% of daily flights leaving in the afternoon.

How many flights depart from Idaho to Colorado on average per week?

262 flights are operational weekly from Idaho to Colorado as of August 2025. The most popular departure day for this route is Thu, with 18% of flights per week taking off on this day.

What airlines fly to Colorado?

United Airlines, Southwest and Frontier are the top three most popular airlines that fly to Colorado from Idaho according to our data. United Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 6 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Idaho to Colorado?

Allegiant Air, Frontier, and Southwest are the most popular carriers operating from Idaho to Colorado

When did momondo last update prices for flights from Idaho to Colorado?

Prices for flights from Idaho to Colorado are updated daily.

How many operators does momondo search for flights from Idaho to Colorado?

The number of operators available for flights from Idaho to Colorado is 7 as of August 2025.

How old do you have to be to fly from Idaho to Colorado?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Colorado.

What documentation or ID do you need to fly to Colorado?

The required travel and health documents for your Colorado trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$42 Cheap Flights from Idaho to Colorado in 2025

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Find the cheapest flights from Idaho to Colorado

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:51 pm - 7:39 pmIDA-DEN

1h 48mnonstop

3:24 pm - 5:06 pmDEN-IDA

1h 42mnonstop

$84Allegiant Air

Find Deal

Thu, Aug 21 - Sun, Aug 24

5:51 pm - 7:39 pmIDA-DEN

1h 48mnonstop

3:24 pm - 5:06 pmDEN-IDA

1h 42mnonstop

$95Allegiant Air

Find Deal

Sun, Aug 17 - Thu, Aug 21

12:33 pm - 2:48 pmBOI-DEN

2h 15mnonstop

9:36 am - 11:38 amDEN-BOI

2h 02mnonstop

$115Frontier

Find Deal

Thu, Aug 28 - Sun, Aug 31

12:22 pm - 2:45 pmBOI-DEN

2h 23mnonstop

9:38 am - 11:37 amDEN-BOI

1h 59mnonstop

$117Frontier

Find Deal

Thu, Sep 4 - Thu, Sep 11

5:00 am - 7:05 amBOI-DEN

2h 05mnonstop

7:45 am - 9:42 amDEN-BOI

1h 57mnonstop

$123United Airlines

Find Deal

Wed, Sep 3 - Wed, Sep 10

5:15 am - 7:15 amBOI-DEN

2h 00mnonstop

1:00 pm - 8:40 pmDEN-BOI

7h 40m1 stop

$132Southwest

Find Deal

Wed, Dec 10 - Wed, Dec 10

5:15 am - 8:32 amGEG-DEN

2h 17mnonstop

7:40 pm - 9:03 pmDEN-GEG

2h 23mnonstop

$139United Airlines

Find Deal

Wed, Sep 17 - Sat, Sep 20

3:45 pm - 11:49 pmBOI-DEN

8h 04m1 stop

6:50 am - 1:06 pmDEN-BOI

6h 16m1 stop

$143Delta

Find Deal

Wed, Sep 3 - Wed, Sep 10

5:00 am - 11:09 amGEG-DEN

5h 09m1 stop

6:10 am - 12:37 pmDEN-GEG

7h 27m1 stop

$143Delta

Find Deal

Tue, Sep 16 - Sat, Sep 20

4:15 pm - 6:05 pmBOI-DEN

1h 50mnonstop

8:00 am - 10:00 amDEN-BOI

2h 00mnonstop

$145Southwest

Find Deal

Wed, Oct 8 - Sat, Oct 11

Alaska Airlines flights from Idaho to Colorado

Our best Alaska Airlines deals on Idaho to Colorado flight tickets

Alaska Airlines

Sep 16

BOI4:34 pmBoise Air Term. Gowen Fld

5h 28m

1 stop

DEN10:02 pmDenver Intl

Sep 23

DEN11:40 amDenver Intl

5h 10m

1 stop

BOI4:50 pmBoise Air Term. Gowen Fld

$142

Find similar

Alaska Airlines

Aug 25

BOI8:46 pmBoise Air Term. Gowen Fld

15h 24m

1 stop

DEN12:10 pmDenver Intl

Aug 27

DEN9:23 pmDenver Intl

12h 05m

1 stop

BOI9:28 amBoise Air Term. Gowen Fld

$149

Find similar

Alaska Airlines

Sep 29

BOI7:17 pmBoise Air Term. Gowen Fld

16h 53m

1 stop

DEN12:10 pmDenver Intl

Oct 2

DEN7:33 pmDenver Intl

13h 55m

1 stop

BOI9:28 amBoise Air Term. Gowen Fld

$156

Find similar

American Airlines flights from Idaho to Colorado

Our best American Airlines deals on Idaho to Colorado flight tickets

American Airlines

Sep 3

BOI1:57 pmBoise Air Term. Gowen Fld

9h 08m

2 stops

DEN11:05 pmDenver Intl

Sep 10

DEN8:00 amDenver Intl

5h 17m

1 stop

BOI1:17 pmBoise Air Term. Gowen Fld

$164

Find similar

American Airlines

Sep 5

BOI1:57 pmBoise Air Term. Gowen Fld

9h 08m

2 stops

DEN11:05 pmDenver Intl

Sep 8

DEN8:00 amDenver Intl

5h 17m

1 stop

BOI1:17 pmBoise Air Term. Gowen Fld

$182

Find similar

American Airlines

Sep 17

GEG2:00 pmSpokane

8h 05m

2 stops

DEN11:05 pmDenver Intl

Oct 7

DEN12:13 pmDenver Intl

5h 10m

1 stop

GEG4:23 pmSpokane

$213

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Thu 8/21

5:51 pm-7:39 pm

Nonstop1h 48m

Denver Intl

Sun 8/24

3:24 pm-5:06 pm

Nonstop1h 42m

$84

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Sun 8/17

5:51 pm-7:39 pm

Nonstop1h 48m

Denver Intl

Thu 8/21

3:24 pm-5:06 pm

Nonstop1h 42m

$95

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Thu 8/28

12:33 pm-2:48 pm

Nonstop2h 15m

Denver Intl

Sun 8/31

9:36 am-11:38 am

Nonstop2h 02m

$115

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Thu 9/4

12:22 pm-2:45 pm

Nonstop2h 23m

Denver Intl

Thu 9/11

9:38 am-11:37 am

Nonstop1h 59m

$117

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Wed 9/3

5:00 am-7:05 am

Nonstop2h 05m

Denver Intl

Wed 9/10

7:45 am-9:42 am

Nonstop1h 57m

$123

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Wed 12/10

5:15 am-7:15 am

Nonstop2h 00m

Denver Intl

Wed 12/10

1:00 pm-8:40 pm

1 stop7h 40m

$132

SpokaneDenver

GEG - DEN

GEGDEN

Spokane

Wed 9/17

5:15 am-8:32 am

Nonstop2h 17m

Denver Intl

Sat 9/20

7:40 pm-9:03 pm

Nonstop2h 23m

$139

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Wed 9/3

3:45 pm-11:49 pm

1 stop8h 04m

Denver Intl

Wed 9/10

6:50 am-1:06 pm

1 stop6h 16m

$143

SpokaneDenver

GEG - DEN

GEGDEN

Spokane

Tue 9/16

5:00 am-11:09 am

1 stop5h 09m

Denver Intl

Sat 9/20

6:10 am-12:37 pm

1 stop7h 27m

$143

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Wed 10/8

4:15 pm-6:05 pm

Nonstop1h 50m

Denver Intl

Sat 10/11

8:00 am-10:00 am

Nonstop2h 00m

$145

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho to Colorado

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Colorado?

The month of May is, on average, the cheapest month to fly to Colorado from Idaho, with most prices found around $254. The month of June is another great option to travel to Colorado, with average flight prices from Idaho averaging around $257.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from Idaho to Colorado is on a Thursday when prices can be found for as low as $457. On the other hand, Sunday is the most expensive day to depart from Idaho because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $571.

What is the cheapest time of day to depart on your flight to Colorado?

The cheapest time of day to fly to Colorado is in the afternoon when flights can be purchased for as low as $438. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $505 per ticket.

What is the cheapest Idaho to Colorado flight route?

Fly from Idaho Falls Fanning Field to Denver Intl for the best Idaho - Colorado flight prices

How far in advance should I book a flight to Colorado?

You are more likely to see cheaper flights to Colorado from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $295 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Idaho for as low as $174 on momondo.

What cabin class options are available on Idaho to Colorado flights?

There are 4 cabin classes available to choose from on Idaho to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to Colorado flights?

No. A direct flight is the cheapest option for a flight between Idaho to Colorado.

Cheap Idaho to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Colorado

Best Price Found	$42
Fastest flight time	1h 35m
Direct flights	Every day
Airports in Colorado	2 airports

The best one-way flight to Colorado from Idaho in the past 72 hours is $42. The best round-trip flight deal from Idaho to Colorado found on momondo in the last 72 hours is $84.

The fastest flight from Idaho to Colorado takes 1h 35m

Direct flights go from Idaho to Colorado every day.

There are 2 airports near Colorado: Colorado Springs (COS), Denver Intl (DEN)

Search flight deals

When did momondo last update prices for flights from Idaho to Colorado?
Prices for flights from Idaho to Colorado are updated daily.
How many operators does momondo search for flights from Idaho to Colorado?
The number of operators available for flights from Idaho to Colorado is 7 as of August 2025.
How old do you have to be to fly from Idaho to Colorado?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Colorado.
What documentation or ID do you need to fly to Colorado?
The required travel and health documents for your Colorado trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Idaho to Colorado?
Based on momondo bookings for flights between Idaho and Colorado, the leading plane model is Embraer 175 (Enhanced Winglets), making up 14.66% of the total bookings. Other popular models include Boeing 737-900 with 12.98%, Boeing 737-800 with 12.48%, and Boeing 737-700 Passenger/BBJ1 (winglets) with 9.36%.

Best airlines flying from Idaho to Colorado

Compare and see reviews for airlines that fly from Idaho to Colorado with momondo

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $43	Free Cancellation	Rating 7.2 701 reviews	Search Allegiant Air flights
Frontier	PriceFrom $60	Free Cancellation	Rating 5.8 3,231 reviews	Search Frontier flights
Delta	PriceFrom $136	Free Cancellation	Rating 8.0 7,985 reviews	Search Delta flights
Alaska Airlines	PriceFrom $154	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $189	Free Cancellation	Rating 7.4 8,917 reviews	Search United Airlines flights
Southwest	PriceFrom $199	Free Cancellation	Rating 8.0 4,244 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Colorado?

It is quick and easy to find Idaho to Colorado flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Colorado that suits you.

Can I find flights from Idaho to Colorado with flexible booking policies on momondo?

Flights from Idaho to Colorado with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Idaho to Colorado?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho to Colorado.

I’m not ready to book a flight from Idaho to Colorado right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Idaho to Colorado flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Colorado trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Colorado

Popular cities in Colorado

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Cheap flights from Idaho to Colorado from $42

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Colorado departing on 8/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Idaho to Colorado

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Alaska Airlines flights from Idaho to Colorado

Our best Alaska Airlines deals on Idaho to Colorado flight tickets

American Airlines flights from Idaho to Colorado

Our best American Airlines deals on Idaho to Colorado flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Idaho to Colorado that are best for you.

See travel insights to Colorado from

How to get the cheapest flight ticket from Idaho to Colorado

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Colorado?

The month of May is, on average, the cheapest month to fly to Colorado from Idaho, with most prices found around $254. The month of June is another great option to travel to Colorado, with average flight prices from Idaho averaging around $257.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from Idaho to Colorado is on a Thursday when prices can be found for as low as $457. On the other hand, Sunday is the most expensive day to depart from Idaho because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $571.

What is the cheapest time of day to depart on your flight to Colorado?

The cheapest time of day to fly to Colorado is in the afternoon when flights can be purchased for as low as $438. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $505 per ticket.

What is the cheapest Idaho to Colorado flight route?

Fly from Idaho Falls Fanning Field to Denver Intl for the best Idaho - Colorado flight prices

How far in advance should I book a flight to Colorado?

What cabin class options are available on Idaho to Colorado flights?

There are 4 cabin classes available to choose from on Idaho to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to Colorado flights?

No. A direct flight is the cheapest option for a flight between Idaho to Colorado.

What is the cheapest airline that flies from Idaho to Colorado?

Allegiant Air, Frontier, and Southwest are the most popular carriers operating from Idaho to Colorado

What airlines fly to Colorado?

How many flights depart from Idaho to Colorado on average per day?

The number of flights available between Idaho and Colorado is 37 per day as of August 2025. The most frequent departure time is 2:00PM, with 44% of daily flights leaving in the afternoon.

How many flights depart from Idaho to Colorado on average per week?

262 flights are operational weekly from Idaho to Colorado as of August 2025. The most popular departure day for this route is Thu, with 18% of flights per week taking off on this day.

How long is the flight from Idaho to Colorado?

Cheap Idaho to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Colorado

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

When did momondo last update prices for flights from Idaho to Colorado?

How many operators does momondo search for flights from Idaho to Colorado?

How old do you have to be to fly from Idaho to Colorado?

What documentation or ID do you need to fly to Colorado?

What is the most popular plane model from Idaho to Colorado?

Best airlines flying from Idaho to Colorado

Compare and see reviews for airlines that fly from Idaho to Colorado with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Colorado?

Can I find flights from Idaho to Colorado with flexible booking policies on momondo?

How can momondo help me find flights from Idaho to Colorado?

I’m not ready to book a flight from Idaho to Colorado right now. Can momondo alert me if prices change?

An easier way to manage your Colorado trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Colorado

Popular cities in Colorado

Popular flights according to clicks in the last 7 days on momondo