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Cheap flights from Denver to Idaho from $45

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 7/28. 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

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Find the cheapest flights from Denver to Idaho

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:29 am - 12:30 pm
DEN
-
BOI
2h 01mnonstop
Frontier Logo
1:24 pm - 3:30 pm
BOI
-
DEN
2h 06mnonstop
$161Frontier
wt., cze 30 - wt., lip 7
Frontier Logo
10:29 am - 12:29 pm
DEN
-
BOI
2h 00mnonstop
Frontier Logo
1:24 pm - 3:30 pm
BOI
-
DEN
2h 06mnonstop
$163Frontier
czw., lip 16 - wt., lip 21
Multiple Airlines Logo
1:43 pm - 8:20 pm
DEN
-
BOI
6h 37m
1 stop
Multiple Airlines Logo
1:04 pm - 3:09 pm
BOI
-
DEN
2h 05mnonstop
$187Multiple Airlines
sob., wrz 5 - wt., wrz 8
Multiple Airlines Logo
8:31 pm - 8:59 am
DEN
-
IDA
12h 28m
1 stop
Multiple Airlines Logo
10:54 pm - 12:38 am
IDA
-
DEN
25h 44m
1 stop
$200Multiple Airlines
czw., sie 13 - pon., sie 17
United Airlines Logo
11:37 am - 1:32 pm
DEN
-
WYS
1h 55mnonstop
United Airlines Logo
5:45 pm - 7:30 pm
WYS
-
DEN
1h 45mnonstop
$243United Airlines
pt., cze 26 - ndz., cze 28
United Airlines Logo
11:25 am - 1:20 pm
DEN
-
WYS
1h 55mnonstop
United Airlines Logo
2:02 pm - 3:43 pm
WYS
-
DEN
1h 41mnonstop
$248United Airlines
śr., paź 7 - ndz., paź 11
Delta Logo
5:40 am - 10:43 am
DEN
-
IDA
5h 03m
1 stop
Delta Logo
6:00 am - 9:18 am
IDA
-
DEN
3h 18m
1 stop
$269Delta
śr., cze 24 - ndz., cze 28
Delta Logo
6:21 pm - 10:31 pm
DEN
-
IDA
4h 10m
1 stop
Delta Logo
3:22 pm - 10:01 pm
IDA
-
DEN
6h 39m
1 stop
$279Delta
sob., lip 4 - sob., lip 11
Alaska Airlines Logo
9:08 pm - 9:38 am
DEN
-
SUN
12h 30m
1 stop
Alaska Airlines Logo
7:43 pm - 11:56 am
SUN
-
DEN
16h 13m
1 stop
$379Alaska Airlines
pt., lip 24 - pon., lip 27
Alaska Airlines Logo
8:22 am - 9:39 am
DEN
-
SUN
25h 17m
1 stop
Alaska Airlines Logo
10:21 am - 4:36 pm
SUN
-
DEN
6h 15m
1 stop
$424Alaska Airlines
wt., sie 25 - pon., sie 31

Frontier flights from Denver to Idaho

Our best Frontier deals on Denver to Idaho flight tickets
Frontier
Jun 30
DEN10:29 amDenver Intl
2h 01m
BOI12:30 pmBoise Air Term. Gowen Fld
Jul 7
BOI1:24 pmBoise Air Term. Gowen Fld
2h 06m
DEN3:30 pmDenver Intl
$161
Frontier
Jul 16
DEN10:29 amDenver Intl
2h 00m
BOI12:29 pmBoise Air Term. Gowen Fld
Jul 21
BOI1:24 pmBoise Air Term. Gowen Fld
2h 06m
DEN3:30 pmDenver Intl
$163
Frontier
Jun 25
DEN10:29 amDenver Intl
2h 01m
BOI12:30 pmBoise Air Term. Gowen Fld
Jun 30
BOI1:25 pmBoise Air Term. Gowen Fld
2h 23m
DEN3:48 pmDenver Intl
$168

Alaska Airlines flights from Denver to Idaho

Our best Alaska Airlines deals on Denver to Idaho flight tickets
Alaska Airlines
Oct 27
DEN7:50 amDenver Intl
5h 24m
1 stop
BOI1:14 pmBoise Air Term. Gowen Fld
Oct 31
BOI9:09 amBoise Air Term. Gowen Fld
5h 23m
1 stop
DEN2:32 pmDenver Intl
$253
Alaska Airlines
Oct 6
DEN12:31 pmDenver Intl
10h 09m
1 stop
GEG9:40 pmSpokane
Oct 7
GEG7:16 amSpokane
15h 36m
1 stop
DEN11:52 pmDenver Intl
$295
Alaska Airlines
Sep 16
DEN1:43 pmDenver Intl
11h 10m
1 stop
GEG11:53 pmSpokane
Sep 23
GEG6:00 amSpokane
12h 26m
1 stop
DEN7:26 pmDenver Intl
$316

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 Czerwiec 6, 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

wt. 6/30

10:29 am-12:30 pm

Nonstop2h 01m

Boise Air Term. Gowen Fld

wt. 7/7

1:24 pm-3:30 pm

Nonstop2h 06m

$161

DenverBoise

DEN - BOI

DENBOI

Denver Intl

czw. 7/16

10:29 am-12:29 pm

Nonstop2h 00m

Boise Air Term. Gowen Fld

wt. 7/21

1:24 pm-3:30 pm

Nonstop2h 06m

$163

DenverBoise

DEN - BOI

DENBOI

Denver Intl

sob. 9/5

1:43 pm-8:20 pm

1 stop6h 37m

Boise Air Term. Gowen Fld

wt. 9/8

1:04 pm-3:09 pm

Nonstop2h 05m

$187

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

czw. 8/13

8:31 pm-8:59 am

1 stop12h 28m

Idaho Falls Fanning Field

pon. 8/17

10:54 pm-12:38 am

1 stop25h 44m

$200

DenverWest Yellowstone

DEN - WYS

DENWYS

Denver Intl

pt. 6/26

11:37 am-1:32 pm

Nonstop1h 55m

West Yellowstone

ndz. 6/28

5:45 pm-7:30 pm

Nonstop1h 45m

$243
Quickest round-trip

DenverWest Yellowstone

DEN - WYS

DENWYS

Denver Intl

śr. 10/7

11:25 am-1:20 pm

Nonstop1h 55m

West Yellowstone

ndz. 10/11

2:02 pm-3:43 pm

Nonstop1h 41m

$248

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

śr. 6/24

5:40 am-10:43 am

1 stop5h 03m

Idaho Falls Fanning Field

ndz. 6/28

6:00 am-9:18 am

1 stop3h 18m

$269

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

sob. 7/4

6:21 pm-10:31 pm

1 stop4h 10m

Idaho Falls Fanning Field

sob. 7/11

3:22 pm-10:01 pm

1 stop6h 39m

$279

DenverHailey

DEN - SUN

DENSUN

Denver Intl

pt. 7/24

9:08 pm-9:38 am

1 stop12h 30m

Hailey Sun Valley-Friedman

pon. 7/27

7:43 pm-11:56 am

1 stop16h 13m

$379

DenverHailey

DEN - SUN

DENSUN

Denver Intl

wt. 8/25

8:22 am-9:39 am

1 stop25h 17m

Hailey Sun Valley-Friedman

pon. 8/31

10:21 am-4:36 pm

1 stop6h 15m

$424

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, December 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 $29. If you don’t want to visit Idaho in December, then you should wait until February to fly from Denver, when ticket prices are also cheap, with an average price of $33.

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 $186. 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 $224. 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 $242 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 $180 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

$147

Fastest flight time

1h 29m

Direct flights

Every day

Airports in Idaho

27 airports
The best one-way flight to Idaho from Denver in the past 72 hours is $147. The best round-trip flight deal from Denver to Idaho found on momondo in the last 72 hours is $211.
The fastest flight from Denver to Idaho takes 1h 29m
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?

  • 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
Allegiant AirPriceFrom $45Free CancellationRating
7.3
706 reviews
Search Allegiant Air flights
FrontierPriceFrom $55Free CancellationRating
5.6
2,908 reviews
Search Frontier flights
DeltaPriceFrom $68Free CancellationRating
7.8
8,398 reviews
Search Delta flights
United AirlinesPriceFrom $175Free CancellationRating
7.4
9,779 reviews
Search United Airlines flights
SouthwestPriceFrom $189Free CancellationRating
8.0
4,257 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.

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1 adult
pon. 7/6
pon. 7/13
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