What airlines fly to Idaho?

United Airlines, Frontier and Southwest 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 52% 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 week?

As of April 2026, 215 flights take off from Denver and land in Idaho each week. The most common flight departure day for this route is Thu, with 16% of weekly flights taking off on this day.

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

The number of flights available between Denver and Idaho is 30 per day as of April 2026. The most frequent departure time is 7:00PM, with 39% of daily flights leaving at noon.

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

Frontier, Delta, and Alaska 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 April 2026.

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.

$56 Cheap Flights from Denver to Idaho in 2026

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Find the cheapest flights from Denver to Idaho

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:25 am - 12:30 pm

DEN

BOI

2h 05mnonstop

1:25 pm - 3:48 pm

BOI

DEN

2h 23mnonstop

$114Frontier

Tue, Jun 2 - Tue, Jun 9

10:25 am - 12:30 pm

DEN

BOI

2h 05mnonstop

1:25 pm - 3:41 pm

BOI

DEN

2h 16mnonstop

$150Frontier

Thu, May 21 - Tue, May 26

10:25 am - 12:30 pm

DEN

BOI

2h 05mnonstop

1:25 pm - 3:41 pm

BOI

DEN

2h 16mnonstop

$151Frontier

Thu, May 28 - Sun, May 31

6:00 am - 12:35 pm

DEN

BOI

6h 35m

1 stop

1:22 pm - 3:38 pm

BOI

DEN

2h 16mnonstop

$170Multiple Airlines

Tue, May 12 - Thu, May 14

10:29 pm - 7:55 pm

DEN

GEG

22h 26m

1 stop

12:33 pm - 3:59 pm

GEG

DEN

2h 26mnonstop

$190Multiple Airlines

Wed, May 20 - Wed, May 27

11:33 am - 1:28 pm

DEN

WYS

1h 55mnonstop

2:03 pm - 3:47 pm

WYS

DEN

1h 44mnonstop

$243United Airlines

Thu, May 7 - Mon, May 11

8:10 am - 9:55 am

DEN

IDA

1h 45mnonstop

7:00 am - 8:55 am

IDA

DEN

1h 55mnonstop

$249United Airlines

Mon, May 18 - Mon, May 25

6:19 pm - 10:42 pm

DEN

IDA

4h 23m

1 stop

6:00 am - 9:18 am

IDA

DEN

3h 18m

1 stop

$269Delta

Sat, May 23 - Sun, Jun 7

12:35 pm - 6:22 pm

DEN

PIH

5h 47m

1 stop

7:00 pm - 10:40 pm

PIH

DEN

3h 40m

1 stop

$347Delta

Wed, May 20 - Wed, May 27

9:00 am - 10:14 am

DEN

SUN

25h 14m

1 stop

10:56 am - 5:02 pm

SUN

DEN

6h 06m

1 stop

$442Alaska Airlines

Wed, May 13 - Sun, May 24

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Delta flights from Denver to Idaho

Our best Delta deals on Denver to Idaho flight tickets

Delta

May 20

DEN5:30 amDenver Intl

4h 02m

1 stop

BOI9:32 amBoise Air Term. Gowen Fld

May 27

BOI3:23 pmBoise Air Term. Gowen Fld

8h 21m

1 stop

DEN11:44 pmDenver Intl

$209

Delta

May 12

DEN5:30 amDenver Intl

4h 02m

1 stop

BOI9:32 amBoise Air Term. Gowen Fld

May 12

BOI3:23 pmBoise Air Term. Gowen Fld

8h 21m

1 stop

DEN11:44 pmDenver Intl

$221

Delta

Sep 24

DEN5:40 amDenver Intl

4h 33m

1 stop

BOI10:13 amBoise Air Term. Gowen Fld

Sep 29

BOI1:15 pmBoise Air Term. Gowen Fld

5h 55m

1 stop

DEN7:10 pmDenver Intl

$237

Frontier flights from Denver to Idaho

Our best Frontier deals on Denver to Idaho flight tickets

Frontier

Jun 2

DEN10:25 amDenver Intl

2h 05m

BOI12:30 pmBoise Air Term. Gowen Fld

Jun 9

BOI1:25 pmBoise Air Term. Gowen Fld

2h 23m

DEN3:48 pmDenver Intl

$114

Frontier

Jun 4

DEN10:25 amDenver Intl

2h 05m

BOI12:30 pmBoise Air Term. Gowen Fld

Jun 9

BOI1:25 pmBoise Air Term. Gowen Fld

2h 23m

DEN3:48 pmDenver Intl

$128

Frontier

May 21

DEN10:25 amDenver Intl

2h 05m

BOI12:30 pmBoise Air Term. Gowen Fld

May 26

BOI1:25 pmBoise Air Term. Gowen Fld

2h 16m

DEN3:41 pmDenver Intl

$150

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 6/2

10:25 am-12:30 pm

Nonstop2h 05m

Boise Air Term. Gowen Fld

Tue 6/9

1:25 pm-3:48 pm

Nonstop2h 23m

$114

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 5/21

10:25 am-12:30 pm

Nonstop2h 05m

Boise Air Term. Gowen Fld

Tue 5/26

1:25 pm-3:41 pm

Nonstop2h 16m

$150

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 5/28

10:25 am-12:30 pm

Nonstop2h 05m

Boise Air Term. Gowen Fld

Sun 5/31

1:25 pm-3:41 pm

Nonstop2h 16m

$151

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 5/12

6:00 am-12:35 pm

1 stop6h 35m

Boise Air Term. Gowen Fld

Thu 5/14

1:22 pm-3:38 pm

Nonstop2h 16m

$170

DenverSpokane

DEN - GEG

DENGEG

Denver Intl

Wed 5/20

10:29 pm-7:55 pm

1 stop22h 26m

Spokane

Wed 5/27

12:33 pm-3:59 pm

Nonstop2h 26m

$190

Quickest round-trip

DenverWest Yellowstone

DEN - WYS

DENWYS

Denver Intl

Thu 5/7

11:33 am-1:28 pm

Nonstop1h 55m

West Yellowstone

Mon 5/11

2:03 pm-3:47 pm

Nonstop1h 44m

$243

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Mon 5/18

8:10 am-9:55 am

Nonstop1h 45m

Idaho Falls Fanning Field

Mon 5/25

7:00 am-8:55 am

Nonstop1h 55m

$249

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sat 5/23

6:19 pm-10:42 pm

1 stop4h 23m

Idaho Falls Fanning Field

Sun 6/7

6:00 am-9:18 am

1 stop3h 18m

$269

DenverPocatello

DEN - PIH

DENPIH

Denver Intl

Wed 5/20

12:35 pm-6:22 pm

1 stop5h 47m

Pocatello

Wed 5/27

7:00 pm-10:40 pm

1 stop3h 40m

$347

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Wed 5/13

9:00 am-10:14 am

1 stop25h 14m

Hailey Sun Valley-Friedman

Sun 5/24

10:56 am-5:02 pm

1 stop6h 06m

$442

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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, February 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 $130. If you don’t want to visit Idaho in February, then you should wait until September to fly from Denver, when ticket prices are also cheap, with an average price of $163.

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 $172. 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 $327.

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 $209. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Idaho, so prices are often more expensive at around $347 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 from Denver 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 $236 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 $154 on momondo.

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

There are 4 cabin classes available to choose from on Denver 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	$168
Fastest flight time	1h 27m
Direct flights	Every day
Airports in Idaho	27 airports

The best one-way flight to Idaho from Denver in the past 72 hours is $168. The best round-trip flight deal from Denver to Idaho found on momondo in the last 72 hours is $220.

The fastest flight from Denver to Idaho takes 1h 27m

Direct flights go from Denver to Idaho every day.

There are 27 airports in Idaho. From Denver there are direct flights to West Yellowstone (WYS), Idaho Falls Fanning Field (IDA), Jackson Hole (JAC), Boise Air Term. Gowen Fld (BOI).

Search flight deals

Frequently asked questions about flying from Denver 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 April 2026.
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 Embraer 175 (Enhanced Winglets), making up 19.30% of the total bookings. Other popular models include Boeing 737-900 with 15.12%, Boeing 737 MAX 8 with 12.03%, and Canadair (Bombardier) Regional Jet 700 with 11.05%.

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 $40	Free Cancellation	Rating 7.3 707 reviews	Search Allegiant Air flights
Frontier	PriceFrom $54	Free Cancellation	Rating 5.6 2,980 reviews	Search Frontier flights
Delta	PriceFrom $68	Free Cancellation	Rating 7.9 8,450 reviews	Search Delta flights
United Airlines	PriceFrom $158	Free Cancellation	Rating 7.4 9,644 reviews	Search United Airlines flights
Southwest	PriceFrom $197	Free Cancellation	Rating 8.0 4,331 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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Popular cities in Idaho

Flights to New Yorkfrom $64

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Flights to Chicagofrom $67

Flights to San Franciscofrom $83

Flights to Las Vegasfrom $46

Flights to Washington, D.C.from $56

Flights to Bostonfrom $75

Flights to Atlantafrom $40

Flights to Dallasfrom $62

Flights to Fort Lauderdalefrom $42

Cheap flights from Denver to Idaho from $49

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 6/23. 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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Delta flights from Denver to Idaho

Our best Delta deals on Denver to Idaho flight tickets

Frontier flights from Denver to Idaho

Our best Frontier deals on Denver to Idaho flight tickets

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See travel insights to Idaho from

How to get the cheapest flight ticket from Denver to Idaho

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?

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

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

Can stopping save me money on Denver to Idaho flights?

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

What airlines fly to Idaho?

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

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

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

Frequently asked questions about flying 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?

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

Denver flight routes

According to popular flight searches on momondo this year

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