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Idaho Falls

$51+ Cheap flights from Denver to Idaho Falls (DEN - IDA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IDA
Apr 14 — Apr 211
Mon 4/14
Mon 4/21
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Idaho Falls Fanning Field are usually found in April or October, booked 81 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from Denver to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 9, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$93
(Kiwi.com)

One-way from

$51
(Kiwi.com)

Popular in

December

Cheapest in

April

Average price

$299

Good round-trip deal

$249 or less

Good one-way deal

$149 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. 14% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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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Find flight deals from Denver to Idaho Falls

Cheapest flights from Denver to Idaho Falls
Explore the most affordable flight options available from Denver to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 9, 2025.

This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/227:46 amDEN - IDA
Nonstop1h 46mUnited Airlines
Sat 4/264:15 pmIDA - DEN
Nonstop1h 42mUnited Airlines
Deal found 4/8$249
This American Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:07 amDEN - IDA
1 stop6h 22mAmerican Airlines
Sat 4/2612:59 pmIDA - DEN
1 stop6h 39mAmerican Airlines
Deal found 4/8$284
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:05 pmDEN - IDA
1 stop4h 51mDelta
Sat 4/266:00 amIDA - DEN
1 stop5h 08mDelta
Deal found 4/9$289
This Alaska Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/137:00 amDEN - IDA
1 stop15h 36mAlaska Airlines
Wed 5/146:00 amIDA - DEN
2 stops15h 15mAlaska Airlines
Deal found 4/9$348
This United deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:14 pmDEN - IDA
Nonstop1h 50mMultiple Airlines
Fri 5/24:35 pmIDA - DEN
1 stop25h 03mMultiple Airlines
Deal found 4/9$566

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 9, 2025.
Use the filters below to find and compare flights from Denver to Idaho Falls that are best for you.

Fly from

Denver

Fly to

Idaho Falls

Route

Depart

Return

Price

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 5/22

3:24 pm-5:06 pm

Nonstop1h 42m

Idaho Falls Fanning Field

Thu 5/29

5:51 pm-7:41 pm

Nonstop1h 50m

$93

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Tue 4/22

7:46 am-9:32 am

Nonstop1h 46m

Idaho Falls Fanning Field

Sat 4/26

4:15 pm-5:57 pm

Nonstop1h 42m

$249

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Tue 4/22

6:07 am-12:29 pm

1 stop6h 22m

Idaho Falls Fanning Field

Sat 4/26

12:59 pm-7:38 pm

1 stop6h 39m

$284

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Tue 4/22

6:05 pm-10:56 pm

1 stop4h 51m

Idaho Falls Fanning Field

Sat 4/26

6:00 am-11:08 am

1 stop5h 08m

$289

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Tue 5/13

7:00 am-10:36 pm

1 stop15h 36m

Idaho Falls Fanning Field

Wed 5/14

6:00 am-9:15 pm

2 stops15h 15m

$348

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 5/1

7:14 pm-9:04 pm

Nonstop1h 50m

Idaho Falls Fanning Field

Fri 5/2

4:35 pm-5:38 pm

1 stop25h 03m

$566

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 5/22

3:24 pm-5:06 pm

Nonstop1h 42m

$51

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Mon 5/12

7:46 am-9:32 am

Nonstop1h 46m

$214

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Mon 5/12

7:55 pm-10:36 pm

1 stop26h 41m

$221

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Mon 5/12

6:25 pm-10:51 pm

1 stop4h 26m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 11 results
1
2

Compare providers for flights from Denver to Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Denver to Idaho Falls?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Idaho Falls. Price data was last updated on April 4, 2025.

The price you pay for your flight from Denver to Idaho Falls may vary depending on when you book. For the best chance of a lower fare, look to book 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from Denver to Idaho Falls (average of $380). Flying from Denver to Idaho Falls in July is currently the most expensive (average of $628). 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?

Find hourly flight availability from Denver to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 9, 2025.

It’s typically best to fly out from Denver to Idaho Falls at noon. Doing so could potentially save you 23% on the flight price compared to flying in the evening, which is usually more expensive.

Weekly flight availability from Denver to Idaho Falls

Explore weekly flight availability from Denver to Idaho Falls. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 9, 2025.

The most flights from DEN to IDA are scheduled on a Monday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho Falls. Reviews last updated April 9, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Denver to Idaho Falls to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,848 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,848 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,906 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,634 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Crew

8.5

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.9

Boarding

8.2

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Denver to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

  • What are the cheapest airlines flying from Denver to Idaho Falls round-trip?

    Allegiant Air, at $93, was found to be the cheapest airline from Denver to Idaho Falls.Alternate airlines to your destination round-trip include United Airlines and American Airlines. These flights start at 74% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Denver to Idaho Falls one-way?

    $51 is the cheapest one-way deal found within the past few days, from Allegiant Air. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from $214 and $221, respectively.

  • What are the most reliable airlines from Denver to Idaho Falls?

    Consider SkyWest Airlines (76%), United Airlines (76%) or Copa Airlines (68%) when booking your flight. These represent the most reliable airlines when flying from Denver to Idaho Falls.

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

    While on average a flight from Denver to Idaho Falls is generally $272, our data shows the cheapest flight currently is $60. When looking at the most popular route, (Denver Intl - Idaho Falls Fanning Field), you can expect to pay $93 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, October is the cheapest month in which you can book a flight from Denver to Idaho Falls (average of $380). Flying from Denver to Idaho Falls in July is currently the most expensive (average of $628). 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

Discover the top airline that operate flights from Denver to Idaho Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$249Average$368FlexibilityNo cancel feeOn-time69%

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