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Cheap flights from Denver to Idaho Falls from $103

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 Falls departing on 2/23. 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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0 bags

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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
8:10 am - 9:56 am
DEN
-
IDA
1h 46mnonstop
United Airlines Logo
2:35 pm - 4:25 pm
IDA
-
DEN
1h 50mnonstop
$189United Airlines
Fri, Mar 6 - Fri, Mar 13
United Airlines Logo
8:00 am - 9:48 am
DEN
-
IDA
1h 48mnonstop
United Airlines Logo
5:33 pm - 7:25 pm
IDA
-
DEN
1h 52mnonstop
$204United Airlines
Sun, Feb 22 - Sat, Feb 28
United Airlines Logo
8:00 am - 9:48 am
DEN
-
IDA
1h 48mnonstop
United Airlines Logo
5:33 pm - 7:25 pm
IDA
-
DEN
1h 52mnonstop
$219United Airlines
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
8:10 am - 9:56 am
DEN
-
IDA
1h 46mnonstop
United Airlines Logo
5:30 pm - 7:22 pm
IDA
-
DEN
1h 52mnonstop
$248United Airlines
Fri, Mar 20 - Sat, Mar 21
United Airlines Logo
8:10 am - 9:56 am
DEN
-
IDA
1h 46mnonstop
United Airlines Logo
5:30 pm - 7:22 pm
IDA
-
DEN
1h 52mnonstop
$249United Airlines
Thu, Mar 12 - Mon, Mar 16
Delta Logo
6:20 pm - 10:21 pm
DEN
-
IDA
4h 01m
1 stop
Delta Logo
5:25 am - 9:24 am
IDA
-
DEN
3h 59m
1 stop
$254Delta
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
10:34 pm - 3:30 pm
DEN
-
IDA
16h 56m
1 stop
Multiple Airlines Logo
4:20 pm - 7:54 am
IDA
-
DEN
15h 34m
2 stops
$257Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
11:45 am - 1:30 pm
DEN
-
IDA
1h 45mnonstop
United Airlines Logo
2:40 pm - 4:29 pm
IDA
-
DEN
1h 49mnonstop
$264United Airlines
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
6:30 am - 6:04 pm
DEN
-
IDA
11h 34m
1 stop
Multiple Airlines Logo
10:36 pm - 9:44 am
IDA
-
DEN
11h 08m
1 stop
$266Multiple Airlines
Sat, Mar 7 - Sat, Mar 14
Delta Logo
12:50 pm - 5:49 pm
DEN
-
IDA
4h 59m
1 stop
Delta Logo
6:55 pm - 10:30 pm
IDA
-
DEN
3h 35m
1 stop
$277Delta
Thu, Mar 5 - Sun, Mar 8

United Airlines flights from Denver to Idaho Falls

Our best United Airlines deals on Denver to Idaho Falls flight tickets
United Airlines
Mar 6
DEN8:10 amDenver Intl
1h 46m
IDA9:56 amIdaho Falls Fanning Field
Mar 13
IDA2:35 pmIdaho Falls Fanning Field
1h 50m
DEN4:25 pmDenver Intl
$189
United Airlines
Feb 22
DEN8:00 amDenver Intl
1h 48m
IDA9:48 amIdaho Falls Fanning Field
Feb 28
IDA5:33 pmIdaho Falls Fanning Field
1h 52m
DEN7:25 pmDenver Intl
$204
United Airlines
Feb 19
DEN8:00 amDenver Intl
1h 48m
IDA9:48 amIdaho Falls Fanning Field
Feb 23
IDA5:33 pmIdaho Falls Fanning Field
1h 52m
DEN7:25 pmDenver Intl
$219

Delta flights from Denver to Idaho Falls

Our best Delta deals on Denver to Idaho Falls flight tickets
Delta
May 12
DEN5:40 amDenver Intl
5h 07m
1 stop
IDA10:47 amIdaho Falls Fanning Field
May 16
IDA3:16 pmIdaho Falls Fanning Field
4h 28m
1 stop
DEN7:44 pmDenver Intl
$209
Delta
May 9
DEN5:40 amDenver Intl
5h 07m
1 stop
IDA10:47 amIdaho Falls Fanning Field
May 16
IDA3:16 pmIdaho Falls Fanning Field
4h 28m
1 stop
DEN7:44 pmDenver Intl
$224
Delta
May 12
DEN5:40 amDenver Intl
5h 07m
1 stop
IDA10:47 amIdaho Falls Fanning Field
May 19
IDA6:54 pmIdaho Falls Fanning Field
3h 47m
1 stop
DEN10:41 pmDenver Intl
$254

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Idaho Falls 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 February 7, 2026.
Use the filters below to find and compare flights from Denver to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Fri 3/6

8:10 am-9:56 am

Nonstop1h 46m

Idaho Falls Fanning Field

Fri 3/13

2:35 pm-4:25 pm

Nonstop1h 50m

$189

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sun 2/22

8:00 am-9:48 am

Nonstop1h 48m

Idaho Falls Fanning Field

Sat 2/28

5:33 pm-7:25 pm

Nonstop1h 52m

$204

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 2/19

8:00 am-9:48 am

Nonstop1h 48m

Idaho Falls Fanning Field

Mon 2/23

5:33 pm-7:25 pm

Nonstop1h 52m

$219

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Fri 3/20

8:10 am-9:56 am

Nonstop1h 46m

Idaho Falls Fanning Field

Sat 3/21

5:30 pm-7:22 pm

Nonstop1h 52m

$248

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 3/12

8:10 am-9:56 am

Nonstop1h 46m

Idaho Falls Fanning Field

Mon 3/16

5:30 pm-7:22 pm

Nonstop1h 52m

$249

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Tue 2/24

6:20 pm-10:21 pm

1 stop4h 01m

Idaho Falls Fanning Field

Tue 3/3

5:25 am-9:24 am

1 stop3h 59m

$254

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 2/26

10:34 pm-3:30 pm

1 stop16h 56m

Idaho Falls Fanning Field

Mon 3/2

4:20 pm-7:54 am

2 stops15h 34m

$257

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Tue 2/24

11:45 am-1:30 pm

Nonstop1h 45m

Idaho Falls Fanning Field

Tue 3/3

2:40 pm-4:29 pm

Nonstop1h 49m

$264

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sat 3/7

6:30 am-6:04 pm

1 stop11h 34m

Idaho Falls Fanning Field

Sat 3/14

10:36 pm-9:44 am

1 stop11h 08m

$266

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 3/5

12:50 pm-5:49 pm

1 stop4h 59m

Idaho Falls Fanning Field

Sun 3/8

6:55 pm-10:30 pm

1 stop3h 35m

$277

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 cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of June, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $116.

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

Our data shows that Thursday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $208. 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 $427.

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 $138. Try not to purchase tickets at noon because they tend to be around $329. 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

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

You are more likely to see cheaper flights to Idaho Falls from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho Falls for around $266 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho Falls from Denver for as low as $63 on momondo.

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

There are 4 cabin classes available to choose from on Denver Intl to Idaho Falls Fanning Field 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?

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

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

As of February 2026, prices for Denver to Idaho Falls flights are approximately 48% 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

$198

Fastest flight time

1h 39m

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 $198. The best round-trip flight deal from Denver to Idaho Falls found on momondo in the last 72 hours is $189.
The fastest flight from Denver to Idaho Falls takes 1h 39m
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

  • 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 39m.

  • 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
Allegiant AirPriceFrom $40Free CancellationRating
7.2
709 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,242 reviews
Search United Airlines flights

  • United Airlines Flights From Denver to Idaho Falls

    United Airlines flies from Denver to Idaho Falls around 21 times per week, with 9,246 momondo users rating the airline 7.4/10. 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 $290 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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