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Cheap flights from Idaho to Denver from $50

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Denver departing on 8/4. 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 Idaho to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:24 pm - 2:30 pm
BOI
-
DEN
2h 06mnonstop
Frontier Logo
6:57 pm - 2:57 pm
DEN
-
BOI
20h 00m
2 stops
$174Frontier
Sun, Sep 6 - Thu, Sep 10
Frontier Logo
1:24 pm - 3:30 pm
BOI
-
DEN
2h 06mnonstop
Frontier Logo
10:29 am - 12:29 pm
DEN
-
BOI
2h 00mnonstop
$179Frontier
Thu, Aug 13 - Sun, Aug 16
Multiple Airlines Logo
1:24 pm - 3:30 pm
BOI
-
DEN
2h 06mnonstop
Multiple Airlines Logo
6:02 am - 12:47 pm
DEN
-
BOI
6h 45m
1 stop
$186Multiple Airlines
Thu, Aug 13 - Sat, Aug 15
Southwest Logo
2:25 pm - 4:20 pm
BOI
-
DEN
1h 55mnonstop
Southwest Logo
9:05 am - 10:55 am
DEN
-
BOI
1h 50mnonstop
$189Southwest
Tue, Aug 25 - Wed, Aug 26
Southwest Logo
2:55 pm - 4:45 pm
BOI
-
DEN
1h 50mnonstop
Southwest Logo
8:40 pm - 10:35 pm
DEN
-
BOI
1h 55mnonstop
$191Southwest
Thu, Aug 13 - Mon, Aug 17
Multiple Airlines Logo
1:24 pm - 3:30 pm
BOI
-
DEN
2h 06mnonstop
Multiple Airlines Logo
6:00 am - 1:46 pm
DEN
-
BOI
7h 46m
1 stop
$192Multiple Airlines
Tue, Aug 11 - Thu, Aug 13
United Airlines Logo
2:30 pm - 4:18 pm
IDA
-
DEN
1h 48mnonstop
United Airlines Logo
8:05 am - 9:50 am
DEN
-
IDA
1h 45mnonstop
$249United Airlines
Wed, Aug 5 - Sun, Aug 9
United Airlines Logo
4:04 pm - 5:58 pm
IDA
-
DEN
1h 54mnonstop
United Airlines Logo
1:39 pm - 3:23 pm
DEN
-
IDA
1h 44mnonstop
$258United Airlines
Fri, Sep 4 - Mon, Sep 7
Delta Logo
6:00 am - 9:12 am
IDA
-
DEN
3h 12m
1 stop
Delta Logo
5:35 am - 10:50 am
DEN
-
IDA
5h 15m
1 stop
$269Delta
Wed, Jul 29 - Mon, Aug 10
Delta Logo
7:05 am - 1:00 pm
GEG
-
DEN
4h 55m
1 stop
Delta Logo
5:30 am - 9:07 am
DEN
-
GEG
4h 37m
1 stop
$292Delta
Fri, Oct 16 - Thu, Oct 22

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Southwest flights from Idaho to Denver

Our best Southwest deals on Idaho to Denver flight tickets
Southwest
Aug 25
BOI2:25 pmBoise Air Term. Gowen Fld
1h 55m
DEN4:20 pmDenver Intl
Aug 26
DEN9:05 amDenver Intl
1h 50m
BOI10:55 amBoise Air Term. Gowen Fld
$189
Southwest
Aug 13
BOI2:55 pmBoise Air Term. Gowen Fld
1h 50m
DEN4:45 pmDenver Intl
Aug 17
DEN8:40 pmDenver Intl
1h 55m
BOI10:35 pmBoise Air Term. Gowen Fld
$191
Southwest
Aug 27
BOI9:05 amBoise Air Term. Gowen Fld
6h 30m
2 stops
DEN3:35 pmDenver Intl
Aug 31
DEN9:00 amDenver Intl
1h 50m
BOI10:50 amBoise Air Term. Gowen Fld
$200

Frontier flights from Idaho to Denver

Our best Frontier deals on Idaho to Denver flight tickets
Frontier
Sep 6
BOI12:24 pmBoise Air Term. Gowen Fld
2h 06m
DEN2:30 pmDenver Intl
Sep 10
DEN6:57 pmDenver Intl
20h 00m
2 stops
BOI2:57 pmBoise Air Term. Gowen Fld
$174
Frontier
Aug 13
BOI1:24 pmBoise Air Term. Gowen Fld
2h 06m
DEN3:30 pmDenver Intl
Aug 16
DEN10:29 amDenver Intl
2h 00m
BOI12:29 pmBoise Air Term. Gowen Fld
$179
Frontier
Sep 15
BOI12:59 pmBoise Air Term. Gowen Fld
2h 01m
DEN3:00 pmDenver Intl
Sep 17
DEN12:02 pmDenver Intl
26h 55m
2 stops
BOI2:57 pmBoise Air Term. Gowen Fld
$182

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to Denver 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 11, 2026.
Use the filters below to find and compare flights from Idaho to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Sun 9/6

12:24 pm-2:30 pm

Nonstop2h 06m

Denver Intl

Thu 9/10

6:57 pm-2:57 pm

2 stops20h 00m

$174

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Thu 8/13

1:24 pm-3:30 pm

Nonstop2h 06m

Denver Intl

Sun 8/16

10:29 am-12:29 pm

Nonstop2h 00m

$179

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Thu 8/13

1:24 pm-3:30 pm

Nonstop2h 06m

Denver Intl

Sat 8/15

6:02 am-12:47 pm

1 stop6h 45m

$186

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Tue 8/25

2:25 pm-4:20 pm

Nonstop1h 55m

Denver Intl

Wed 8/26

9:05 am-10:55 am

Nonstop1h 50m

$189

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Thu 8/13

2:55 pm-4:45 pm

Nonstop1h 50m

Denver Intl

Mon 8/17

8:40 pm-10:35 pm

Nonstop1h 55m

$191

BoiseDenver

BOI - DEN

BOIDEN

Boise Air Term. Gowen Fld

Tue 8/11

1:24 pm-3:30 pm

Nonstop2h 06m

Denver Intl

Thu 8/13

6:00 am-1:46 pm

1 stop7h 46m

$192
Quickest round-trip

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Wed 8/5

2:30 pm-4:18 pm

Nonstop1h 48m

Denver Intl

Sun 8/9

8:05 am-9:50 am

Nonstop1h 45m

$249

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Fri 9/4

4:04 pm-5:58 pm

Nonstop1h 54m

Denver Intl

Mon 9/7

1:39 pm-3:23 pm

Nonstop1h 44m

$258

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Wed 7/29

6:00 am-9:12 am

1 stop3h 12m

Denver Intl

Mon 8/10

5:35 am-10:50 am

1 stop5h 15m

$269

SpokaneDenver

GEG - DEN

GEGDEN

Spokane

Fri 10/16

7:05 am-1:00 pm

1 stop4h 55m

Denver Intl

Thu 10/22

5:30 am-9:07 am

1 stop4h 37m

$292

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 Denver from

How to get the cheapest flight ticket from Idaho to Denver

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 Denver?

The cheapest month to fly to Denver from Idaho is in January. Flight prices, which tend to average around $26, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until February to fly from Idaho, when ticket prices are also cheap, with an average price of $27.

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

The cheapest day to depart on your flight to Denver is on a Thursday when prices can be found for as low as $405. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Monday, with ticket prices averaging around $543.

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

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $242. Flights in the morning are often more expensive with an average ticket price of $482.

What is the cheapest Idaho to Denver Intl flight route?

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

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

You are more likely to see cheaper flights to Denver from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $271 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Idaho for as low as $234 on momondo.

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

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

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

Cheap Idaho to Denver flight deals and tips

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

Best Price Found

$202

Fastest flight time

1h 35m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Idaho in the past 72 hours is $202. The best round-trip flight deal from Idaho to Denver found on momondo in the last 72 hours is $371.
The fastest flight from Idaho to Denver takes 1h 35m
Direct flights go from Idaho to Denver every day.
There is 1 airport in Denver. From Idaho there are direct flights to Denver Intl (DEN).
Search flight deals

Frequently asked questions about flying from Idaho to Denver

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

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

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

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

    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 Idaho to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The travel and health documents you'll need for your trip to Denver Intl Airport 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 Denver Intl Airport. 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 Idaho to Denver?

Best airlines flying from Idaho to Denver

Compare and see reviews for airlines that fly from Idaho to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $54Free CancellationRating
5.6
2,826 reviews
Search Frontier flights
DeltaPriceFrom $104Free CancellationRating
7.8
8,460 reviews
Search Delta flights
United AirlinesPriceFrom $182Free CancellationRating
7.4
9,980 reviews
Search United Airlines flights
SouthwestPriceFrom $189Free CancellationRating
7.9
4,251 reviews
Search Southwest flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Longmont
Manitou Springs
Boulder
Westminster
Lakewood
Greeley
Keystone
Thornton
Cripple Creek
Centennial
Englewood
Frisco
Winter Park
Littleton
Copper Mountain

Why use momondo?

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

It is quick and easy to find Idaho to Denver flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Denver that suits you.

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

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

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

Once all potential Idaho to Denver 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 Idaho to Denver right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Idaho to Denver now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Denver and let you know when they change.

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