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Idaho Falls

$131+ Cheap flights from Denver to Idaho Falls (DEN - IDA)

DEN — IDA
Nov 10 — Nov 171
Tue 11/10
Tue 11/17
1 adult, Economy
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Cheap flight deals from Denver to Idaho Falls

Cheapest flights from Denver to Idaho Falls

Thu 10/2910:44 pm -
1 stop14h 50m
Fri 10/308:28 pm -
1 stop13h 20m
Deal found 10/9$288
Tue 11/2410:50 pm -
1 stop12h 56m
Mon 11/303:32 pm -
1 stop17h 43m
Deal found 10/11$298
Mon 11/238:00 am -
Nonstop1h 53m
Tue 12/14:10 pm -
Nonstop1h 49m
Deal found 10/10$299
Fri 11/206:42 am -
1 stop8h 52m
Mon 11/303:32 pm -
1 stop17h 43m
Deal found 10/11$313
Tue 10/277:15 pm -
Nonstop1h 54m
Sun 11/155:30 pm -
Nonstop1h 50m
Deal found 10/8$314
Mon 11/239:34 am -
1 stop6h 00m
Mon 11/303:32 pm -
1 stop20h 35m
Deal found 10/11$316
Sat 11/76:00 pm -
1 stop4h 10m
Sun 11/81:05 pm -
1 stop6h 29m
Deal found 10/10$319
Fri 10/231:40 pm -
Nonstop1h 44m
Sun 10/2510:35 am -
Nonstop1h 50m
Deal found 10/8$329

Find flight deals from Denver to Idaho Falls

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$251
(Kiwi.com)

One-way from

$131
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$336

Good round-trip deal

$329 or less

Good one-way deal

$233 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. 16% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in October 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.

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Thu 10/29

10:44 pm-1:34 pm

1 stop14h 50m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$131

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Tue 11/3

8:00 am-9:53 am

Nonstop1h 53m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$269

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Tue 11/3

3:44 pm-10:59 pm

1 stop7h 15m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$279

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Mon 11/23

8:00 am-9:53 am

Nonstop1h 53m

Idaho Falls Fanning Field

Fri 11/27

5:30 pm-7:20 pm

Nonstop1h 50m

$299

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Mon 11/23

8:00 am-9:53 am

Nonstop1h 53m

Idaho Falls Fanning Field

Tue 12/1

4:10 pm-5:59 pm

Nonstop1h 49m

$299

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Fri 10/16

7:00 am-4:00 pm

1 stop9h 00m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$308

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Mon 11/23

12:53 pm-6:17 pm

1 stop5h 24m

Idaho Falls Fanning Field

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$310

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Fri 10/23

1:40 pm-3:24 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Sun 10/25

10:35 am-12:25 pm

Nonstop1h 50m

$329

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Thu 10/29

7:15 pm-9:09 pm

Nonstop1h 54m

Idaho Falls Fanning Field

Sun 11/1

5:30 pm-7:20 pm

Nonstop1h 50m

$351

DenverIdaho Falls

DEN Denver Intl - IDA Idaho Falls Fanning Field

DENIDA

Denver Intl

Thu 10/29

8:00 am-9:53 am

Nonstop1h 53m

Idaho Falls Fanning Field

Mon 11/2

4:30 pm-6:20 pm

Nonstop1h 50m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 18 resultsSorted by cheapest first
1
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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 October.
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 $448). 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 afternoon. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from Denver to Idaho Falls?

Airfare is below average for this route at the moment.

Denver to Idaho Falls flights typically cost between $299 and $424 in October.
The cheapest round-trip price found within the last 5 days was $288 on Multiple Airlines (Oct 29-Oct 30).

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
10,339 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.7

Entertainment

7.1

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
10,339 reviews
United Airlines
7.4
Good
10,339 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.7

Entertainment

7.1

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 42m 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 1 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 53m. The distance from Denver to Idaho Falls is about 457 mi. All flights are typically nonstop.

  • 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 43% 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 $329, our data shows the cheapest flight currently is $193. When looking at the most popular route, (Denver Intl - Idaho Falls Fanning Field), you can expect to pay $299 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 $448). 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

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Denver to Idaho Falls

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$334FlexibilityNo cancel feeOn-time69%

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