Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Denver to Idaho from $54

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 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Idaho

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:55 am - 12:04 pm
DEN
-
BOI
2h 09mnonstop
Frontier Logo
3:52 pm - 12:15 am
BOI
-
DEN
8h 23m
1 stop
$183Frontier
Thu, Sep 17 - Mon, Sep 21
Frontier Logo
9:29 am - 11:29 am
DEN
-
BOI
2h 00mnonstop
Frontier Logo
1:24 pm - 3:30 pm
BOI
-
DEN
2h 06mnonstop
$188Frontier
Thu, Aug 27 - Tue, Sep 1
Multiple Airlines Logo
10:29 am - 12:29 pm
DEN
-
BOI
2h 00mnonstop
Multiple Airlines Logo
5:52 pm - 11:16 pm
BOI
-
DEN
5h 24m
1 stop
$193Multiple Airlines
Tue, Aug 25 - Fri, Aug 28
Multiple Airlines Logo
9:29 am - 11:29 am
DEN
-
BOI
2h 00mnonstop
Multiple Airlines Logo
6:00 am - 11:07 am
BOI
-
DEN
5h 07m
1 stop
$196Multiple Airlines
Thu, Sep 3 - Sun, Sep 6
Southwest Logo
9:15 pm - 11:10 pm
DEN
-
BOI
1h 55mnonstop
Southwest Logo
2:25 pm - 4:20 pm
BOI
-
DEN
1h 55mnonstop
$197Southwest
Wed, Aug 12 - Sat, Aug 15
United Airlines Logo
11:50 am - 1:29 pm
DEN
-
IDA
1h 39mnonstop
United Airlines Logo
4:04 pm - 5:58 pm
IDA
-
DEN
1h 54mnonstop
$249United Airlines
Thu, Aug 13 - Thu, Aug 20
United Airlines Logo
1:39 pm - 3:23 pm
DEN
-
IDA
1h 44mnonstop
United Airlines Logo
4:04 pm - 5:58 pm
IDA
-
DEN
1h 54mnonstop
$260United Airlines
Sat, Sep 5 - Mon, Sep 14
Southwest Logo
9:10 am - 4:15 pm
DEN
-
GEG
8h 05m
1 stop
Southwest Logo
6:15 am - 3:10 pm
GEG
-
DEN
7h 55m
2 stops
$282Southwest
Wed, Aug 19 - Sat, Aug 22
Delta Logo
3:56 pm - 10:18 pm
DEN
-
TWF
6h 22m
1 stop
Delta Logo
1:17 pm - 5:02 pm
TWF
-
DEN
3h 45m
1 stop
$306Delta
Mon, Aug 24 - Wed, Sep 30
Delta Logo
8:05 am - 12:29 pm
DEN
-
PIH
4h 24m
1 stop
Delta Logo
1:14 pm - 7:40 pm
PIH
-
DEN
6h 26m
1 stop
$342Delta
Fri, Oct 2 - Sat, Oct 3

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Alaska Airlines flights from Denver to Idaho

Our best Alaska Airlines deals on Denver to Idaho flight tickets
Alaska Airlines
Aug 13
DEN9:08 pmDenver Intl
12h 29m
1 stop
BOI9:37 amBoise Air Term. Gowen Fld
Aug 16
BOI6:13 pmBoise Air Term. Gowen Fld
5h 46m
1 stop
DEN11:59 pmDenver Intl
$257
Alaska Airlines
Nov 10
DEN7:50 amDenver Intl
5h 07m
1 stop
BOI12:57 pmBoise Air Term. Gowen Fld
Nov 14
BOI1:27 pmBoise Air Term. Gowen Fld
8h 01m
1 stop
DEN9:28 pmDenver Intl
$259
Alaska Airlines
Sep 1
DEN5:34 pmDenver Intl
5h 51m
1 stop
GEG10:25 pmSpokane
Sep 5
GEG7:03 amSpokane
13h 10m
1 stop
DEN9:13 pmDenver Intl
$293

Frontier flights from Denver to Idaho

Our best Frontier deals on Denver to Idaho flight tickets
Frontier
Sep 17
DEN9:55 amDenver Intl
2h 09m
BOI12:04 pmBoise Air Term. Gowen Fld
Sep 21
BOI3:52 pmBoise Air Term. Gowen Fld
8h 23m
1 stop
DEN12:15 amDenver Intl
$183
Frontier
Aug 27
DEN9:29 amDenver Intl
2h 00m
BOI11:29 amBoise Air Term. Gowen Fld
Sep 1
BOI1:24 pmBoise Air Term. Gowen Fld
2h 06m
DEN3:30 pmDenver Intl
$188
Frontier
Oct 1
DEN9:55 amDenver Intl
2h 09m
BOI12:04 pmBoise Air Term. Gowen Fld
Oct 4
BOI3:52 pmBoise Air Term. Gowen Fld
28h 27m
2 stops
DEN8:19 pmDenver Intl
$189

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Idaho 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, momondo users made 832,500 searches. Data last updated July 20, 2026.
Use the filters below to find and compare flights from Denver to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 9/17

9:55 am-12:04 pm

Nonstop2h 09m

Boise Air Term. Gowen Fld

Mon 9/21

3:52 pm-12:15 am

1 stop8h 23m

$183

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 8/27

9:29 am-11:29 am

Nonstop2h 00m

Boise Air Term. Gowen Fld

Tue 9/1

1:24 pm-3:30 pm

Nonstop2h 06m

$188

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Tue 8/25

10:29 am-12:29 pm

Nonstop2h 00m

Boise Air Term. Gowen Fld

Fri 8/28

5:52 pm-11:16 pm

1 stop5h 24m

$193

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Thu 9/3

9:29 am-11:29 am

Nonstop2h 00m

Boise Air Term. Gowen Fld

Sun 9/6

6:00 am-11:07 am

1 stop5h 07m

$196

DenverBoise

DEN - BOI

DENBOI

Denver Intl

Wed 8/12

9:15 pm-11:10 pm

Nonstop1h 55m

Boise Air Term. Gowen Fld

Sat 8/15

2:25 pm-4:20 pm

Nonstop1h 55m

$197
Quickest round-trip

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 8/13

11:50 am-1:29 pm

Nonstop1h 39m

Idaho Falls Fanning Field

Thu 8/20

4:04 pm-5:58 pm

Nonstop1h 54m

$249

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sat 9/5

1:39 pm-3:23 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Mon 9/14

4:04 pm-5:58 pm

Nonstop1h 54m

$260

DenverSpokane

DEN - GEG

DENGEG

Denver Intl

Wed 8/19

9:10 am-4:15 pm

1 stop8h 05m

Spokane

Sat 8/22

6:15 am-3:10 pm

2 stops7h 55m

$282

DenverTwin Falls

DEN - TWF

DENTWF

Denver Intl

Mon 8/24

3:56 pm-10:18 pm

1 stop6h 22m

Twin Falls Joslin

Wed 9/30

1:17 pm-5:02 pm

1 stop3h 45m

$306

DenverPocatello

DEN - PIH

DENPIH

Denver Intl

Fri 10/2

8:05 am-12:29 pm

1 stop4h 24m

Pocatello

Sat 10/3

1:14 pm-7:40 pm

1 stop6h 26m

$342

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Idaho from

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?

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 $199. If you don’t want to visit Idaho in February, then you should wait until January to fly from Denver, when ticket prices are also cheap, with an average price of $212.

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 $176. 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 $347.

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 $235. 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 $355 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 $254 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 $191 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

$162

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 $162. The best round-trip flight deal from Denver to Idaho found on momondo in the last 72 hours is $280.
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) and 1 more.
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?

  • 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?

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
FrontierPriceFrom $54Free CancellationRating
5.6
2,780 reviews
Search Frontier flights
DeltaPriceFrom $68Free CancellationRating
7.8
8,476 reviews
Search Delta flights
United AirlinesPriceFrom $176Free CancellationRating
7.4
10,014 reviews
Search United Airlines flights
SouthwestPriceFrom $177Free CancellationRating
8.0
4,241 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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 8/19
Wed 8/26
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Idaho

Popular cities in Idaho

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $73
Flights to Los Angelesfrom $56
Flights to Orlandofrom $57
Flights to Miamifrom $69
Flights to Chicagofrom $76
Flights to San Franciscofrom $55
Flights to Las Vegasfrom $46
Flights to Washington, D.C.from $56
Flights to Bostonfrom $63
Flights to Atlantafrom $56
Flights to Fort Lauderdalefrom $58
Flights to Dallasfrom $77