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Cheap flights from Denver to Idaho Falls from $136

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 6/22. 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.
Multiple Airlines Logo
6:45 am - 9:30 pm
DEN
-
IDA
14h 45m
1 stop
Multiple Airlines Logo
4:43 pm - 3:25 am
IDA
-
DEN
10h 42m
1 stop
$225Multiple Airlines
Fri, May 29 - Mon, Jun 1
Multiple Airlines Logo
3:10 pm - 3:00 pm
DEN
-
IDA
23h 50m
1 stop
Multiple Airlines Logo
10:47 pm - 9:20 am
IDA
-
DEN
10h 33m
1 stop
$243Multiple Airlines
Thu, Jul 30 - Mon, Aug 3
Multiple Airlines Logo
6:10 am - 4:08 pm
DEN
-
IDA
9h 58m
1 stop
Multiple Airlines Logo
10:56 pm - 2:50 pm
IDA
-
DEN
15h 54m
2 stops
$250Multiple Airlines
Mon, Jun 8 - Mon, Jun 22
Multiple Airlines Logo
6:10 am - 4:00 pm
DEN
-
IDA
9h 50m
1 stop
Multiple Airlines Logo
10:47 pm - 12:30 am
IDA
-
DEN
25h 43m
1 stop
$251Multiple Airlines
Fri, Jul 24 - Mon, Jul 27
Multiple Airlines Logo
6:10 am - 4:08 pm
DEN
-
IDA
9h 58m
1 stop
Multiple Airlines Logo
10:56 pm - 12:38 am
IDA
-
DEN
25h 42m
1 stop
$255Multiple Airlines
Mon, Jun 8 - Fri, Jun 19
Multiple Airlines Logo
7:26 pm - 4:08 pm
DEN
-
IDA
20h 42m
1 stop
Multiple Airlines Logo
10:56 pm - 12:38 am
IDA
-
DEN
25h 42m
1 stop
$259Multiple Airlines
Thu, Jun 18 - Mon, Jun 22
Multiple Airlines Logo
6:10 am - 4:08 pm
DEN
-
IDA
9h 58m
1 stop
Multiple Airlines Logo
6:39 pm - 9:01 pm
IDA
-
DEN
26h 22m
1 stop
$261Multiple Airlines
Fri, Jun 5 - Mon, Jun 22
United Airlines Logo
3:35 pm - 5:19 pm
DEN
-
IDA
1h 44mnonstop
United Airlines Logo
7:00 am - 8:55 am
IDA
-
DEN
1h 55mnonstop
$263United Airlines
Sat, Jun 13 - Sat, Jun 20
Multiple Airlines Logo
10:36 pm - 8:55 am
DEN
-
IDA
10h 19m
1 stop
Multiple Airlines Logo
9:47 am - 9:39 am
IDA
-
DEN
23h 52m
1 stop
$266Multiple Airlines
Sat, Jul 25 - Fri, Jul 31
United Airlines Logo
8:05 am - 9:50 am
DEN
-
IDA
1h 45mnonstop
United Airlines Logo
5:54 pm - 7:45 pm
IDA
-
DEN
1h 51mnonstop
$268United Airlines
Sat, Jun 6 - Sat, Jun 13

Delta flights from Denver to Idaho Falls

Our best Delta deals on Denver to Idaho Falls flight tickets
Delta
Jul 4
DEN5:40 amDenver Intl
5h 03m
1 stop
IDA10:43 amIdaho Falls Fanning Field
Jul 6
IDA6:00 amIdaho Falls Fanning Field
3h 18m
1 stop
DEN9:18 amDenver Intl
$269
Delta
Jun 6
DEN5:30 amDenver Intl
5h 17m
1 stop
IDA10:47 amIdaho Falls Fanning Field
Jun 13
IDA6:00 amIdaho Falls Fanning Field
3h 18m
1 stop
DEN9:18 amDenver Intl
$279
Delta
May 28
DEN5:30 amDenver Intl
5h 17m
1 stop
IDA10:47 amIdaho Falls Fanning Field
Jun 4
IDA6:54 pmIdaho Falls Fanning Field
3h 46m
1 stop
DEN10:40 pmDenver Intl
$284

United Airlines flights from Denver to Idaho Falls

Our best United Airlines deals on Denver to Idaho Falls flight tickets
United Airlines
Nov 4
DEN7:45 amDenver Intl
1h 43m
IDA9:28 amIdaho Falls Fanning Field
Nov 8
IDA2:35 pmIdaho Falls Fanning Field
1h 44m
DEN4:19 pmDenver Intl
$249
United Airlines
Jun 13
DEN3:35 pmDenver Intl
1h 44m
IDA5:19 pmIdaho Falls Fanning Field
Jun 20
IDA7:00 amIdaho Falls Fanning Field
1h 55m
DEN8:55 amDenver Intl
$263
United Airlines
Jun 6
DEN8:05 amDenver Intl
1h 45m
IDA9:50 amIdaho Falls Fanning Field
Jun 13
IDA5:54 pmIdaho Falls Fanning Field
1h 51m
DEN7:45 pmDenver Intl
$268

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 May 9, 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

Cheapest round-trip

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Fri 5/29

6:45 am-9:30 pm

1 stop14h 45m

Idaho Falls Fanning Field

Mon 6/1

4:43 pm-3:25 am

1 stop10h 42m

$225

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 7/30

3:10 pm-3:00 pm

1 stop23h 50m

Idaho Falls Fanning Field

Mon 8/3

10:47 pm-9:20 am

1 stop10h 33m

$243

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Mon 6/8

6:10 am-4:08 pm

1 stop9h 58m

Idaho Falls Fanning Field

Mon 6/22

10:56 pm-2:50 pm

2 stops15h 54m

$250

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Fri 7/24

6:10 am-4:00 pm

1 stop9h 50m

Idaho Falls Fanning Field

Mon 7/27

10:47 pm-12:30 am

1 stop25h 43m

$251

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Mon 6/8

6:10 am-4:08 pm

1 stop9h 58m

Idaho Falls Fanning Field

Fri 6/19

10:56 pm-12:38 am

1 stop25h 42m

$255

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 6/18

7:26 pm-4:08 pm

1 stop20h 42m

Idaho Falls Fanning Field

Mon 6/22

10:56 pm-12:38 am

1 stop25h 42m

$259

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Fri 6/5

6:10 am-4:08 pm

1 stop9h 58m

Idaho Falls Fanning Field

Mon 6/22

6:39 pm-9:01 pm

1 stop26h 22m

$261

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sat 6/13

3:35 pm-5:19 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Sat 6/20

7:00 am-8:55 am

Nonstop1h 55m

$263

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sat 7/25

10:36 pm-8:55 am

1 stop10h 19m

Idaho Falls Fanning Field

Fri 7/31

9:47 am-9:39 am

1 stop23h 52m

$266
Quickest round-trip

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sat 6/6

8:05 am-9:50 am

Nonstop1h 45m

Idaho Falls Fanning Field

Sat 6/13

5:54 pm-7:45 pm

Nonstop1h 51m

$268

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?

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of July, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $220.

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 $210. 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 $393.

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 $125. Try not to purchase tickets at noon because they tend to be around $418. 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

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 May 2026, prices for Denver to Idaho Falls flights are approximately 69% cheaper 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

$243

Fastest flight time

1h 43m

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 $243. The best round-trip flight deal from Denver to Idaho Falls found on momondo in the last 72 hours is $389.
The fastest flight from Denver to Idaho Falls takes 1h 43m
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 43m.

  • 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 $82Free CancellationRating
7.3
709 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,693 reviews
Search United Airlines flights

  • United Airlines Flights From Denver to Idaho Falls

    United Airlines flies from Denver to Idaho Falls around 25 times per week, with 9,693 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 $300 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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