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Cheap flights from Denver to Idaho Falls from $111

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:55 am - 1:37 pmDEN  Denver Intl-IDA Idaho Falls Fanning Field
1h 42mnonstop
United Airlines Logo
2:40 pm - 4:25 pmIDA  Idaho Falls Fanning Field-DEN Denver Intl
1h 45mnonstop
$329United Airlines
Tue, Dec 1 - Sun, Dec 6
United Airlines Logo
11:55 am - 1:37 pmDEN  Denver Intl-IDA Idaho Falls Fanning Field
1h 42mnonstop
United Airlines Logo
4:10 pm - 5:59 pmIDA  Idaho Falls Fanning Field-DEN Denver Intl
1h 49mnonstop
$329United Airlines
Sun, Dec 6 - Sun, Dec 13
United Airlines Logo
7:35 pm - 9:19 pmDEN  Denver Intl-IDA Idaho Falls Fanning Field
1h 44mnonstop
United Airlines Logo
7:00 am - 8:46 amIDA  Idaho Falls Fanning Field-DEN Denver Intl
1h 46mnonstop
$329United Airlines
Wed, Dec 23 - Sun, Dec 27
United Airlines Logo
8:00 am - 9:53 amDEN  Denver Intl-IDA Idaho Falls Fanning Field
1h 53mnonstop
United Airlines Logo
4:10 pm - 5:59 pmIDA  Idaho Falls Fanning Field-DEN Denver Intl
1h 49mnonstop
$329United Airlines
Thu, Nov 26 - Tue, Dec 1
United Airlines Logo
11:55 am - 1:37 pmDEN  Denver Intl-IDA Idaho Falls Fanning Field
1h 42mnonstop
United Airlines Logo
7:00 am - 8:46 amIDA  Idaho Falls Fanning Field-DEN Denver Intl
1h 46mnonstop
$329United Airlines
Tue, Dec 8 - Sun, Dec 20
United Airlines Logo
8:00 am - 9:53 amDEN  Denver Intl-IDA Idaho Falls Fanning Field
1h 53mnonstop
United Airlines Logo
9:40 pm - 11:30 pmIDA  Idaho Falls Fanning Field-DEN Denver Intl
1h 50mnonstop
$344United Airlines
Wed, Nov 25 - Sat, Nov 28
United Airlines Logo
1:50 pm - 3:38 pmDEN  Denver Intl-IDA Idaho Falls Fanning Field
1h 48mnonstop
United Airlines Logo
9:40 pm - 11:30 pmIDA  Idaho Falls Fanning Field-DEN Denver Intl
1h 50mnonstop
$344United Airlines
Fri, Nov 20 - Sat, Nov 28
American Airlines Logo
3:47 pm - 10:31 pmDEN  Denver Intl-IDA Idaho Falls Fanning Field
6h 44m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
5:35 pm - 12:38 amIDA  Idaho Falls Fanning Field-DEN Denver Intl
7h 03m1 stop Phoenix Sky Harbor Intl
$349American Airlines
Tue, Dec 1 - Sun, Dec 6
American Airlines Logo
3:44 pm - 11:02 pmDEN  Denver Intl-IDA Idaho Falls Fanning Field
7h 18m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
5:35 pm - 10:58 pmIDA  Idaho Falls Fanning Field-DEN Denver Intl
5h 23m1 stop Phoenix Sky Harbor Intl
$349American Airlines
Sun, Dec 6 - Sun, Dec 13
Delta Logo
6:33 pm - 11:03 pmDEN  Denver Intl-IDA Idaho Falls Fanning Field
4h 30m1 stop Salt Lake City
Delta Logo
5:40 am - 11:34 amIDA  Idaho Falls Fanning Field-DEN Denver Intl
5h 54m1 stop Salt Lake City
$349Delta
Mon, Dec 21 - Thu, Dec 31

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American Airlines flights from Denver to Idaho Falls

Our best American Airlines deals on Denver to Idaho Falls flight tickets
American Airlines
Dec 23
DEN6:55 pmDenver Intl
5h 01m
1 stop
IDA11:56 pmIdaho Falls Fanning Field
Dec 27
IDA5:51 pmIdaho Falls Fanning Field
5h 21m
1 stop
DEN11:12 pmDenver Intl
$433
American Airlines
Jan 5
DEN5:30 amDenver Intl
31h 42m
1 stop
IDA1:12 pmIdaho Falls Fanning Field
Jan 9
IDA6:26 amIdaho Falls Fanning Field
16h 29m
1 stop
DEN10:55 pmDenver Intl
$581
American Airlines
Nov 13
DEN3:44 pmDenver Intl
7h 15m
1 stop
IDA10:59 pmIdaho Falls Fanning Field
Nov 15
IDA8:00 amIdaho Falls Fanning Field
6h 18m
1 stop
DEN2:18 pmDenver Intl
$604

Alaska Airlines flights from Denver to Idaho Falls

Our best Alaska Airlines deals on Denver to Idaho Falls flight tickets
Alaska Airlines
Dec 12
DEN7:40 amDenver Intl
5h 37m
1 stop
IDA1:17 pmIdaho Falls Fanning Field
Dec 14
IDA6:00 amIdaho Falls Fanning Field
15h 39m
2 stops
DEN9:39 pmDenver Intl
$555
Alaska Airlines
Dec 12
DEN7:00 amDenver Intl
8h 07m
1 stop
IDA3:07 pmIdaho Falls Fanning Field
Dec 14
IDA1:54 pmIdaho Falls Fanning Field
23h 02m
2 stops
DEN12:56 pmDenver Intl
$560
Alaska Airlines
Dec 12
DEN7:40 amDenver Intl
5h 37m
1 stop
IDA1:17 pmIdaho Falls Fanning Field
Dec 14
IDA3:44 pmIdaho Falls Fanning Field
22h 40m
1 stop
DEN2:24 pmDenver Intl
$568

momondo Fare Finder

 
Use the filters below to find and compare flights from Denver to Idaho Falls that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Tue 12/1

11:55 am-1:37 pm

Nonstop1h 42m

Idaho Falls Fanning Field

Sun 12/6

2:40 pm-4:25 pm

Nonstop1h 45m

$329

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Sun 12/6

11:55 am-1:37 pm

Nonstop1h 42m

Idaho Falls Fanning Field

Sun 12/13

4:10 pm-5:59 pm

Nonstop1h 49m

$329

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Wed 12/23

7:35 pm-9:19 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Sun 12/27

7:00 am-8:46 am

Nonstop1h 46m

$329

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Thu 11/26

8:00 am-9:53 am

Nonstop1h 53m

Idaho Falls Fanning Field

Tue 12/1

4:10 pm-5:59 pm

Nonstop1h 49m

$329

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Tue 12/8

11:55 am-1:37 pm

Nonstop1h 42m

Idaho Falls Fanning Field

Sun 12/20

7:00 am-8:46 am

Nonstop1h 46m

$329

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Wed 11/25

8:00 am-9:53 am

Nonstop1h 53m

Idaho Falls Fanning Field

Sat 11/28

9:40 pm-11:30 pm

Nonstop1h 50m

$344

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Fri 11/20

1:50 pm-3:38 pm

Nonstop1h 48m

Idaho Falls Fanning Field

Sat 11/28

9:40 pm-11:30 pm

Nonstop1h 50m

$344

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Tue 12/1

3:47 pm-10:31 pm

1 stop6h 44m

Idaho Falls Fanning Field

Sun 12/6

5:35 pm-12:38 am

1 stop7h 03m

$349

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Sun 12/6

3:44 pm-11:02 pm

1 stop7h 18m

Idaho Falls Fanning Field

Sun 12/13

5:35 pm-10:58 pm

1 stop5h 23m

$349

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Mon 12/21

6:33 pm-11:03 pm

1 stop4h 30m

Idaho Falls Fanning Field

Thu 12/31

5:40 am-11:34 am

1 stop5h 54m

$349

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 Falls from

How to get the cheapest flight ticket from Denver to Idaho Falls

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 typical price of a round-trip flight between Denver and Idaho Falls?

Prices are currently low for flights on this route.

Typical prices usually range from $334 to $369.
The lowest price recently found on this route was $329.

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $279.

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

Our data shows that Saturday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $279. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Monday is $409.

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

Our most recent data shows that the best time of day to fly to Idaho Falls is in the afternoon. Flights from Denver to Idaho Falls during this time can be as low as $318. Try not to purchase tickets in the morning because they tend to be around $361. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Denver Intl to Idaho Falls Fanning Field flight route?

Fly from Denver Intl to Idaho Falls Fanning Field for the best Denver Intl - Idaho Falls Fanning Field flight prices

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

There are 2 cabin classes available to choose from on Denver to Idaho Falls 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 Falls flights?

You could potentially save up to 10% on your flight if you consider stops on a Denver to Idaho Falls flight.

How have Denver to Idaho Falls flight prices changed over time?

As of November 2026, prices for Denver to Idaho Falls flights are approximately 22% more expensive when compared to flights at the same time last year.

When to book flights from Denver to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Idaho Falls (DEN to IDA) flight deals and tips

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

Best Price Found

$111

Fastest flight time

1h 42m

Direct flights

Every day

Airports in Idaho Falls

1 airport
The best one-way flight to Idaho Falls from Denver in the past 72 hours is $111. The best round-trip flight deal from Denver to Idaho Falls found on momondo in the last 72 hours is $329.
The fastest flight from Denver to Idaho Falls takes 1h 42m
Direct flights go from Denver to Idaho Falls every day.
There is 1 airport in Idaho Falls. From Denver there are direct flights to Idaho Falls Fanning Field (IDA).
Search flight deals

Frequently asked questions about flying from Denver to Idaho Falls

  • How far is Denver Intl to Idaho Falls Fanning Field by plane?

    There are 445.5 mi between Denver Intl and Idaho Falls Fanning Field. By plane, this route typically takes 1h 42m.

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

    Prices for flights from Denver Intl Airport to Idaho Falls Fanning Field Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The required travel and health documents for your Idaho Falls Fanning Field Airport 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 Falls Fanning Field Airport. 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 Denver to Idaho Falls?

  • What is the most popular airline from Denver to Idaho Falls?

Best airlines flying from Denver to Idaho Falls

Compare and see reviews for airlines that fly from Denver to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $189Free CancellationRating
7.3
10,471 reviews
Search United Airlines flights

  • United Airlines Flights From Denver to Idaho Falls

    United Airlines flies from Denver to Idaho Falls around 17 times per week, with 10,471 momondo users rating the airline 7.3/10. The cheapest United Airlines deal from Denver to Idaho Falls in the last 72 hours was $189 (round-trip), much lower than the average airfare cost of $347 for United Airlines flights on this route.

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Denver to Idaho Falls. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Denver to Idaho Falls flights to just show those with flexible booking policies.

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

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

Of course. momondo tracks the price of Denver to Idaho Falls flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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