Cheap flights from Colorado to Idaho from $18

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Idaho departing on 9/26. 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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Find the cheapest flights from Colorado to Idaho

Cheap round-trip flights

Frontier Logo
9:38 am - 11:37 amDEN-BOI
1h 59mnonstop
Frontier Logo
12:22 pm - 2:45 pmBOI-DEN
2h 23mnonstop
$79Frontier
Find Deal
jue., oct. 2 - vie., oct. 3
Frontier Logo
9:38 am - 10:58 amDEN-GEG
2h 20mnonstop
Frontier Logo
11:53 am - 3:12 pmGEG-DEN
2h 19mnonstop
$88Frontier
Find Deal
jue., sep. 25 - dom., sep. 28
Southwest Logo
8:50 am - 10:45 amDEN-BOI
1h 55mnonstop
Southwest Logo
4:15 pm - 6:05 pmBOI-DEN
1h 50mnonstop
$177Southwest
Find Deal
mar., oct. 7 - mar., oct. 7
Alaska Airlines Logo
3:00 pm - 11:22 pmDEN-BOI
8h 22m1 stop
Alaska Airlines Logo
8:50 am - 2:41 pmBOI-DEN
5h 51m1 stop
$182Alaska Airlines
Find Deal
sáb., oct. 25 - mié., oct. 29
Southwest Logo
8:50 am - 10:45 amDEN-BOI
1h 55mnonstop
Southwest Logo
12:30 pm - 5:25 pmBOI-DEN
4h 55m1 stop
$187Southwest
Find Deal
mar., oct. 7 - mar., oct. 7
United Airlines Logo
3:40 pm - 5:15 pmDEN-JAC
1h 35mnonstop
United Airlines Logo
4:18 pm - 5:55 pmJAC-DEN
1h 37mnonstop
$189United Airlines
Find Deal
vie., oct. 17 - lun., oct. 20
United Airlines Logo
9:05 pm - 10:49 pmDEN-IDA
1h 44mnonstop
United Airlines Logo
8:30 am - 10:18 amIDA-DEN
1h 48mnonstop
$189United Airlines
Find Deal
mié., oct. 22 - mar., oct. 28
Alaska Airlines Logo
7:02 pm - 11:57 pmDEN-BOI
4h 55m1 stop
Alaska Airlines Logo
6:05 pm - 11:59 pmBOI-DEN
5h 54m1 stop
$192Alaska Airlines
Find Deal
jue., oct. 23 - mié., oct. 29
Delta Logo
6:55 am - 1:23 pmDEN-BOI
6h 28m1 stop
Delta Logo
4:00 pm - 11:50 pmBOI-DEN
7h 50m1 stop
$203Delta
Find Deal
lun., sep. 29 - mié., oct. 8
Delta Logo
3:54 pm - 9:29 pmDEN-JAC
5h 35m1 stop
Delta Logo
7:20 am - 11:07 amJAC-DEN
3h 47m1 stop
$209Delta
Find Deal
jue., nov. 13 - dom., nov. 16

Hawaiian Airlines flights from Colorado to Idaho

Our best Hawaiian Airlines deals on Colorado to Idaho flight tickets
Hawaiian Airlines
Oct 4
DEN3:00 pmDenver Intl
8h 22m
1 stop
BOI11:22 pmBoise Air Term. Gowen Fld
Oct 8
BOI7:13 amBoise Air Term. Gowen Fld
6h 47m
1 stop
DEN2:00 pmDenver Intl
Hawaiian Airlines
Sep 24
DEN11:40 amDenver Intl
5h 10m
1 stop
BOI4:50 pmBoise Air Term. Gowen Fld
Oct 1
BOI4:34 pmBoise Air Term. Gowen Fld
5h 28m
1 stop
DEN10:02 pmDenver Intl
Hawaiian Airlines
Sep 23
DEN6:17 pmDenver Intl
5h 51m
1 stop
BOI12:08 amBoise Air Term. Gowen Fld
Sep 30
BOI6:00 amBoise Air Term. Gowen Fld
4h 44m
1 stop
DEN10:44 amDenver Intl

Alaska Airlines flights from Colorado to Idaho

Our best Alaska Airlines deals on Colorado to Idaho flight tickets
Alaska Airlines
Oct 25
DEN3:00 pmDenver Intl
8h 22m
1 stop
BOI11:22 pmBoise Air Term. Gowen Fld
Oct 29
BOI8:50 amBoise Air Term. Gowen Fld
5h 51m
1 stop
DEN2:41 pmDenver Intl
Alaska Airlines
Oct 23
DEN7:02 pmDenver Intl
4h 55m
1 stop
BOI11:57 pmBoise Air Term. Gowen Fld
Oct 29
BOI6:05 pmBoise Air Term. Gowen Fld
5h 54m
1 stop
DEN11:59 pmDenver Intl
Alaska Airlines
Sep 24
DEN11:40 amDenver Intl
5h 10m
1 stop
BOI4:50 pmBoise Air Term. Gowen Fld
Oct 1
BOI4:34 pmBoise Air Term. Gowen Fld
5h 28m
1 stop
DEN10:02 pmDenver Intl

momondo Fare Finder

 
Customize your flight search to find flights from Colorado 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 agosto 28, 2025.
Use the filters below to find and compare flights from Colorado to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverBoise

DEN - BOI

DENBOI

Denver Intl

jue. 10/2

9:38 am-11:37 am

Nonstop1h 59m

Boise Air Term. Gowen Fld

vie. 10/3

12:22 pm-2:45 pm

Nonstop2h 23m

$79

DenverSpokane

DEN - GEG

DENGEG

Denver Intl

jue. 9/25

9:38 am-10:58 am

Nonstop2h 20m

Spokane

dom. 9/28

11:53 am-3:12 pm

Nonstop2h 19m

$88

DenverBoise

DEN - BOI

DENBOI

Denver Intl

mar. 10/7

8:50 am-10:45 am

Nonstop1h 55m

Boise Air Term. Gowen Fld

mar. 10/7

4:15 pm-6:05 pm

Nonstop1h 50m

$177

DenverBoise

DEN - BOI

DENBOI

Denver Intl

sáb. 10/25

3:00 pm-11:22 pm

1 stop8h 22m

Boise Air Term. Gowen Fld

mié. 10/29

8:50 am-2:41 pm

1 stop5h 51m

$182

DenverBoise

DEN - BOI

DENBOI

Denver Intl

mar. 10/7

8:50 am-10:45 am

Nonstop1h 55m

Boise Air Term. Gowen Fld

mar. 10/7

12:30 pm-5:25 pm

1 stop4h 55m

$187

DenverJackson

DEN - JAC

DENJAC

Denver Intl

vie. 10/17

3:40 pm-5:15 pm

Nonstop1h 35m

Jackson Hole

lun. 10/20

4:18 pm-5:55 pm

Nonstop1h 37m

$189

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

mié. 10/22

9:05 pm-10:49 pm

Nonstop1h 44m

Idaho Falls Fanning Field

mar. 10/28

8:30 am-10:18 am

Nonstop1h 48m

$189

DenverBoise

DEN - BOI

DENBOI

Denver Intl

jue. 10/23

7:02 pm-11:57 pm

1 stop4h 55m

Boise Air Term. Gowen Fld

mié. 10/29

6:05 pm-11:59 pm

1 stop5h 54m

$192

DenverBoise

DEN - BOI

DENBOI

Denver Intl

lun. 9/29

6:55 am-1:23 pm

1 stop6h 28m

Boise Air Term. Gowen Fld

mié. 10/8

4:00 pm-11:50 pm

1 stop7h 50m

$203

DenverJackson

DEN - JAC

DENJAC

Denver Intl

jue. 11/13

3:54 pm-9:29 pm

1 stop5h 35m

Jackson Hole

dom. 11/16

7:20 am-11:07 am

1 stop3h 47m

$209

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 Colorado 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, July is the cheapest month to fly from Colorado to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $230. If you don’t want to visit Idaho in July, then you should wait until May to fly from Colorado, when ticket prices are also cheap, with an average price of $252.

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

Our data shows that Sunday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $224. On the other hand, Monday is the most expensive day to depart from Colorado because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $373.

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 Colorado to Idaho in the morning for as low as $259. 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 afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $331 per ticket.

What is the cheapest Colorado to Idaho flight route?

Fly from Denver Intl to Idaho Falls Fanning Field for the best Colorado - 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 Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $302 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Colorado for as low as $200 on momondo.

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

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

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

Cheap Colorado to Idaho flight deals and tips

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

Best Price Found

$108

Fastest flight time

1h 27m

Direct flights

Every day

Airports in Idaho

4 airports
The best one-way flight to Idaho from Colorado in the past 72 hours is $108. The best round-trip flight deal from Colorado to Idaho found on momondo in the last 72 hours is $109.
The fastest flight from Colorado to Idaho takes 1h 27m
Direct flights go from Colorado to Idaho every day.
There are 4 airports near Idaho: West Yellowstone (WYS), Idaho Falls Fanning Field (IDA), Jackson Hole (JAC), Boise Air Term. Gowen Fld (BOI)
  • When did momondo last update prices for flights from Colorado to Idaho?

    Prices for flights from Colorado to Idaho are updated daily.

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

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

    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 Colorado to Idaho.

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

    The required travel and health documents for your Idaho 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 Idaho. 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 Colorado to Idaho?

Best airlines flying from Colorado to Idaho

Compare and see reviews for airlines that fly from Colorado to Idaho with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $44Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
FrontierPriceFrom $62Free CancellationRating
5.8
3,204 reviews
Search Frontier flights
DeltaPriceFrom $98Free CancellationRating
7.9
7,977 reviews
Search Delta flights
Alaska AirlinesPriceFrom $168Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $197Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $198Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights
American AirlinesPriceFrom $298Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Colorado to Idaho. momondo saves you time and could save you money on your trip.

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

All flight searches from Colorado to Idaho on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Colorado to Idaho flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Colorado to Idaho 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.

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1 adult
mar. 9/2
mar. 9/9

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Popular cities in Idaho

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