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Idaho Falls

$122+ Cheap flights from Denver to Idaho Falls (DEN - IDA)

DEN — IDA
Sep 27 — Oct 41
Sun 9/27
Sun 10/4
1 adult, Economy
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Cheap flight deals from Denver to Idaho Falls

Cheapest flights from Denver to Idaho Falls

Wed 9/163:35 pm -
Nonstop1h 41m
Tue 9/224:04 pm -
Nonstop1h 54m
Deal found 8/23$259
Thu 9/171:10 pm -
2 stops22h 54m
Mon 9/216:21 pm -
1 stop15h 46m
Deal found 8/23$271
Fri 9/1111:50 am -
Nonstop1h 39m
Tue 9/155:53 pm -
Nonstop1h 52m
Deal found 8/23$274
Thu 10/152:39 pm -
2 stops25h 21m
Mon 10/199:33 pm -
1 stop12h 16m
Deal found 8/24$275
Thu 10/158:20 am -
1 stop4h 02m
Mon 10/196:56 pm -
1 stop3h 44m
Deal found 8/24$279
Mon 9/147:00 am -
1 stop11h 33m
Fri 9/186:51 pm -
1 stop15h 16m
Deal found 8/27$280
Sat 9/126:06 pm -
1 stop4h 16m
Tue 9/156:57 pm -
1 stop3h 43m
Deal found 8/24$294
Tue 9/151:00 pm -
1 stop5h 17m
Tue 9/221:05 pm -
1 stop3h 57m
Deal found 8/25$299
Thu 9/171:10 pm -
2 stops22h 54m
Sun 9/208:20 pm -
1 stop13h 23m
Deal found 8/23$302

Find flight deals from Denver to Idaho Falls

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$259
(United Airlines)

One-way from

$122
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$290

Good round-trip deal

$280 or less

Good one-way deal

$325 or less
Provider with most accurate pricing for Denver Intl-Idaho Falls Fanning Field flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Idaho Falls Fanning Field flights.
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From Denver Intl to Idaho Falls Fanning Field
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One-way flight from Denver Intl to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 19% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Price to beat on a round-trip flight from Denver Intl to Idaho Falls Fanning Field.
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Price to beat on a one-way flight from Denver Intl to Idaho Falls Fanning Field.
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Cheapflights 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

Sat 10/3

11:45 am-1:24 pm

Nonstop1h 39m

Idaho Falls Fanning Field

Tue 10/6

5:51 pm-7:43 pm

Nonstop1h 52m

$259

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Wed 10/7

3:35 pm-5:16 pm

Nonstop1h 41m

Idaho Falls Fanning Field

Sun 10/11

4:05 pm-5:59 pm

Nonstop1h 54m

$294

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Wed 9/16

3:35 pm-5:16 pm

Nonstop1h 41m

Idaho Falls Fanning Field

Wed 9/23

4:04 pm-5:58 pm

Nonstop1h 54m

$311

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Thu 10/15

8:20 am-12:22 pm

1 stop4h 02m

Idaho Falls Fanning Field

Thu 10/22

6:00 am-9:44 am

1 stop3h 44m

$324

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Mon 10/12

1:40 pm-3:24 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Wed 10/21

10:35 am-12:29 pm

Nonstop1h 54m

$329

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Tue 10/27

1:50 pm-3:38 pm

Nonstop1h 48m

Idaho Falls Fanning Field

Tue 11/3

4:30 pm-6:20 pm

Nonstop1h 50m

$329

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Tue 10/27

12:57 pm-6:16 pm

1 stop5h 19m

Idaho Falls Fanning Field

Tue 11/3

6:00 am-9:44 am

1 stop3h 44m

$344

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Thu 10/29

1:50 pm-3:38 pm

Nonstop1h 48m

Idaho Falls Fanning Field

Mon 11/2

5:40 pm-7:30 pm

Nonstop1h 50m

$349

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Tue 10/27

9:45 am-1:21 pm

2 stops27h 36m

Idaho Falls Fanning Field

Tue 11/3

3:55 pm-12:57 pm

2 stops21h 02m

$417

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Thu 9/17

3:35 pm-5:16 pm

Nonstop1h 41m

Idaho Falls Fanning Field

Sun 9/20

5:53 pm-7:45 pm

Nonstop1h 52m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/23

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Denver to Idaho Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Idaho Falls in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Denver with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Denver to Idaho Falls

What is the cheapest month to book a flight from Denver to Idaho Falls?

Currently, January is the cheapest month in which you can book a flight from Denver to Idaho Falls (average of $220). Flying from Denver to Idaho Falls in June is currently the most expensive (average of $467). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to IDA?

It’s typically best to fly out from Denver to Idaho Falls in the evening. Doing so could potentially save you 29% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Denver to Idaho Falls?

Travelers seeking maximum savings on their Denver to Idaho Falls flight should consider departing on Wednesday evenings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown United Airlines from Denver to Idaho Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,136 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.7

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
10,136 reviews
United Airlines
7.4
Good
10,136 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.7

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

  • What airports do I use to fly from Denver to Idaho Falls?

    To fly from Denver to Idaho Falls, you need to book a flight from Denver Intl (DEN) to Fanning Field (IDA). Nonstop flights to Idaho Falls Fanning Field from Denver Intl take 1h 39m on average. When it comes time to book airfare, you have a few options: there are 4 outbound flights from Denver Intl to Fanning Field offered by 1 airline.

  • How popular is this Denver to Idaho Falls flight route?

    The Denver Intl to Idaho Falls Fanning Field flight path was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Denver to Idaho Falls?

    Departing from Denver to Idaho Falls will take you 1h 39m. The distance from Denver to Idaho Falls is about 457 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Denver to Idaho Falls round-trip?

    United Airlines, at $189, was found to be the cheapest airline from Denver to Idaho Falls.. This flight start at 42% lower than the current average price 3 months from now.

  • What are the cheapest flights from Denver to Idaho Falls?

    While on average a flight from Denver to Idaho Falls is generally $416, our data shows the cheapest flight currently is $249. When looking at the most popular route, (Denver Intl - Idaho Falls Fanning Field), you can expect to pay $279 for that flight.

  • Can I find deals for flights from Denver to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on Denver to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Idaho Falls.

  • Can I find deals for business class flights from Denver to Idaho Falls?

    Yes. Cheapflights offers flight deals from Denver to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Idaho Falls?

    Currently, January is the cheapest month in which you can book a flight from Denver to Idaho Falls (average of $220). Flying from Denver to Idaho Falls in June is currently the most expensive (average of $467). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Denver to Idaho Falls

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$328FlexibilityNo cancel feeOn-time69%

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