What airlines fly to Idaho?

United Airlines, Southwest and Frontier are the top three most popular airlines that fly to Idaho from Denver according to our data. United Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

The number of flights available between Denver and Idaho is 27 per day as of October 2025. The most frequent departure time is 7:00PM, with 43% of daily flights leaving in the evening.

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

As of October 2025, 190 flights take off from Denver and land in Idaho each week. The most common flight departure day for this route is Wed, with 21% of weekly flights taking off on this day.

What is the cheapest airline that flies from Denver Intl to Idaho?

Frontier, Southwest, and United Airlines are the most popular carriers operating from Denver Intl to Idaho

When did momondo last update prices for flights from Denver Intl Airport to Idaho?

Prices for flights from Denver Intl Airport to Idaho are updated daily.

How many operators does momondo search for flights from Denver Intl Airport to Idaho?

The number of operators available for flights from Denver Intl Airport to Idaho is 6 as of October 2025.

How old do you have to be to fly from Denver Intl Airport to Idaho?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to Idaho.

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

The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$27 Cheap Flights from Denver to Idaho in 2025/26

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9:42 am - 11:13 amDEN-GEG

2h 31mnonstop

12:08 pm - 3:50 pmGEG-DEN

2h 42mnonstop

$102Frontier

Find Deal

Thu, Dec 4 - Thu, Dec 11

9:42 am - 11:13 amDEN-GEG

2h 31mnonstop

12:08 pm - 3:50 pmGEG-DEN

2h 42mnonstop

$103Frontier

Find Deal

Thu, Dec 4 - Thu, Dec 11

6:00 am - 12:45 pmDEN-BOI

6h 45m1 stop

12:44 pm - 2:45 pmBOI-DEN

2h 01mnonstop

$115Multiple Airlines

Find Deal

Thu, Dec 4 - Thu, Dec 11

9:59 am - 8:08 pmDEN-GEG

11h 09m1 stop

12:23 pm - 4:05 pmGEG-DEN

2h 42mnonstop

$120Multiple Airlines

Find Deal

Thu, Jan 8 - Sun, Jan 11

9:30 pm - 11:48 pmDEN-BOI

2h 18mnonstop

5:10 pm - 7:21 pmBOI-DEN

2h 11mnonstop

$127United Airlines

Find Deal

Wed, Feb 25 - Sat, Feb 28

11:16 am - 12:46 pmDEN-GEG

2h 30mnonstop

4:10 pm - 7:40 pmGEG-DEN

2h 30mnonstop

$131United Airlines

Find Deal

Thu, Jan 15 - Wed, Jan 21

6:05 am - 10:39 amDEN-GEG

5h 34m1 stop

5:05 am - 11:32 amGEG-DEN

5h 27m1 stop

$165Delta

Find Deal

Sat, Dec 6 - Sat, Dec 13

9:05 pm - 11:10 pmDEN-BOI

2h 05mnonstop

5:00 am - 7:00 amBOI-DEN

2h 00mnonstop

$170Southwest

Find Deal

Thu, Dec 4 - Sun, Dec 7

9:00 pm - 11:10 pmDEN-BOI

2h 10mnonstop

11:55 am - 5:45 pmBOI-DEN

5h 50m1 stop

$189Southwest

Find Deal

Wed, Feb 25 - Sat, Feb 28

7:51 pm - 12:10 amDEN-GEG

5h 19m1 stop

3:33 pm - 11:27 pmGEG-DEN

6h 54m1 stop

$205Delta

Find Deal

Fri, Nov 14 - Mon, Nov 17

Southwest flights from Denver to Idaho

Our best Southwest deals on Denver to Idaho flight tickets

Southwest

Dec 4

DEN9:05 pmDenver Intl

2h 05m

BOI11:10 pmBoise Air Term. Gowen Fld

Dec 7

BOI5:00 amBoise Air Term. Gowen Fld

2h 00m

DEN7:00 amDenver Intl

$170

Find similar

Southwest

Feb 25

DEN9:00 pmDenver Intl

2h 10m

BOI11:10 pmBoise Air Term. Gowen Fld

Feb 28

BOI11:55 amBoise Air Term. Gowen Fld

5h 50m

1 stop

DEN5:45 pmDenver Intl

$189

Find similar

Southwest

Nov 5

DEN9:05 pmDenver Intl

2h 05m

BOI11:10 pmBoise Air Term. Gowen Fld

Nov 7

BOI4:00 pmBoise Air Term. Gowen Fld

7h 00m

1 stop

DEN11:00 pmDenver Intl

$349

Find similar

Frontier flights from Denver to Idaho

Our best Frontier deals on Denver to Idaho flight tickets

Frontier

Dec 4

DEN9:42 amDenver Intl

2h 31m

GEG11:13 amSpokane

Dec 11

GEG12:08 pmSpokane

2h 42m

DEN3:50 pmDenver Intl

$102

Find similar

Frontier

Dec 4

DEN9:42 amDenver Intl

2h 31m

GEG11:13 amSpokane

Dec 11

GEG12:08 pmSpokane

2h 42m

DEN3:50 pmDenver Intl

$103

Find similar

Frontier

Dec 4

DEN9:42 amDenver Intl

2h 31m

GEG11:13 amSpokane

Dec 11

GEG5:01 pmSpokane

6h 19m

1 stop

DEN12:20 amDenver Intl

$108

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Fly from

Fly to

Route

Depart

Return

Price

DenverSpokane

DEN - GEG

DENGEG

Denver Intl

Thu 12/4

9:42 am-11:13 am

Nonstop2h 31m

Spokane

Thu 12/11

12:08 pm-3:50 pm

Nonstop2h 42m

$102

DenverSpokane

DEN - GEG

DENGEG

Denver Intl

Thu 12/4

9:42 am-11:13 am

Nonstop2h 31m

Spokane

Thu 12/11

12:08 pm-3:50 pm

Nonstop2h 42m

$103

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 12/4

6:00 am-12:45 pm

1 stop6h 45m

Boise Air Term. Gowen Fld

Thu 12/11

12:44 pm-2:45 pm

Nonstop2h 01m

$115

DenverSpokane

DEN - GEG

DENGEG

Denver Intl

Thu 1/8

9:59 am-8:08 pm

1 stop11h 09m

Spokane

Sun 1/11

12:23 pm-4:05 pm

Nonstop2h 42m

$120

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Wed 2/25

9:30 pm-11:48 pm

Nonstop2h 18m

Boise Air Term. Gowen Fld

Sat 2/28

5:10 pm-7:21 pm

Nonstop2h 11m

$127

DenverSpokane

DEN - GEG

DENGEG

Denver Intl

Thu 1/15

11:16 am-12:46 pm

Nonstop2h 30m

Spokane

Wed 1/21

4:10 pm-7:40 pm

Nonstop2h 30m

$131

DenverSpokane

DEN - GEG

DENGEG

Denver Intl

Sat 12/6

6:05 am-10:39 am

1 stop5h 34m

Spokane

Sat 12/13

5:05 am-11:32 am

1 stop5h 27m

$165

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 12/4

9:05 pm-11:10 pm

Nonstop2h 05m

Boise Air Term. Gowen Fld

Sun 12/7

5:00 am-7:00 am

Nonstop2h 00m

$170

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Wed 2/25

9:00 pm-11:10 pm

Nonstop2h 10m

Boise Air Term. Gowen Fld

Sat 2/28

11:55 am-5:45 pm

1 stop5h 50m

$189

DenverSpokane

DEN - GEG

DENGEG

Denver Intl

Fri 11/14

7:51 pm-12:10 am

1 stop5h 19m

Spokane

Mon 11/17

3:33 pm-11:27 pm

1 stop6h 54m

$205

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How to get the cheapest flight ticket from Denver to Idaho

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 Idaho?

In general, September is the cheapest month to fly from Denver to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $163. If you don’t want to visit Idaho in September, then you should wait until July to fly from Denver, when ticket prices are also cheap, with an average price of $230.

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

Our data shows that Thursday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $211. On the other hand, Monday is the most expensive day to depart from Denver because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $324.

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

According to our data, the cheapest time of day to fly to Idaho is in the morning. momondo users have found flights departing from Denver to Idaho in the morning for as low as $237. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Idaho, so prices are often more expensive at around $332 per ticket.

What is the cheapest Denver Intl to Idaho flight route?

Fly from Denver Intl to Boise Air Term. Gowen Fld for the best Denver Intl - Idaho flight prices

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

You are more likely to see cheaper flights to Idaho from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $280 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Denver for as low as $174 on momondo.

What cabin class options are available on Denver Intl to Idaho flights?

There are 4 cabin classes available to choose from on Denver Intl to Idaho 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 Denver to Idaho flights?

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

Cheap Denver to Idaho flight deals and tips

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

Best Price Found	$119
Fastest flight time	1h 32m
Direct flights	Every day
Airports in Idaho	3 airports

The best one-way flight to Idaho from Denver in the past 72 hours is $119. The best round-trip flight deal from Denver to Idaho found on momondo in the last 72 hours is $178.

The fastest flight from Denver to Idaho takes 1h 32m

Direct flights go from Denver to Idaho every day.

There are 3 airports near Idaho: Idaho Falls Fanning Field (IDA), Jackson Hole (JAC), Boise Air Term. Gowen Fld (BOI)

Search flight deals

When did momondo last update prices for flights from Denver Intl Airport to Idaho?
Prices for flights from Denver Intl Airport to Idaho are updated daily.
How many operators does momondo search for flights from Denver Intl Airport to Idaho?
The number of operators available for flights from Denver Intl Airport to Idaho is 6 as of October 2025.
How old do you have to be to fly from Denver Intl Airport to Idaho?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents you'll need for your trip to Idaho may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Denver to Idaho?
Based on momondo bookings for flights between Denver and Idaho, the leading plane model is Canadair (Bombardier) Regional Jet 700, making up 17.23% of the total bookings. Other popular models include Boeing 737-900 with 14.78%, Embraer 175 (Enhanced Winglets) with 12.39%, and Boeing 737 MAX 8 with 10.21%.

Best airlines flying from Denver to Idaho

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

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $44	Free Cancellation	Rating 7.2 694 reviews	Search Allegiant Air flights
Frontier	PriceFrom $62	Free Cancellation	Rating 5.8 3,129 reviews	Search Frontier flights
Delta	PriceFrom $98	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
United Airlines	PriceFrom $194	Free Cancellation	Rating 7.4 8,990 reviews	Search United Airlines flights
Southwest	PriceFrom $197	Free Cancellation	Rating 8.0 4,237 reviews	Search Southwest flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Denver to Idaho. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Denver to Idaho flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Idaho from Denver. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Idaho, momondo offers a useful price alert feature which will track prices for flights to Idaho from Denver and alert you when they change.

An easier way to manage your Idaho trip

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Find better results for your trip to Idaho

Popular cities in Idaho

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Cheap flights from Denver to Idaho from $27

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Idaho departing on 12/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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Find the cheapest flights from Denver to Idaho

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Southwest flights from Denver to Idaho

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Our best Frontier deals on Denver to Idaho flight tickets

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How to get the cheapest flight ticket from Denver to Idaho

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 Idaho?

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

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

What is the cheapest Denver Intl to Idaho flight route?

Fly from Denver Intl to Boise Air Term. Gowen Fld for the best Denver Intl - Idaho flight prices

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

What cabin class options are available on Denver Intl to Idaho flights?

There are 4 cabin classes available to choose from on Denver Intl to Idaho 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 Denver to Idaho flights?

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

What is the cheapest airline that flies from Denver Intl to Idaho?

Frontier, Southwest, and United Airlines are the most popular carriers operating from Denver Intl to Idaho

What airlines fly to Idaho?

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

The number of flights available between Denver and Idaho is 27 per day as of October 2025. The most frequent departure time is 7:00PM, with 43% of daily flights leaving in the evening.

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

As of October 2025, 190 flights take off from Denver and land in Idaho each week. The most common flight departure day for this route is Wed, with 21% of weekly flights taking off on this day.

Cheap Denver to Idaho flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Idaho

When did momondo last update prices for flights from Denver Intl Airport to Idaho?

How many operators does momondo search for flights from Denver Intl Airport to Idaho?

How old do you have to be to fly from Denver Intl Airport to Idaho?

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

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

Best airlines flying from Denver to Idaho

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

Why use momondo?

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

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

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

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

An easier way to manage your Idaho 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 Idaho

Popular cities in Idaho

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