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$65+ Cheap flights from Idaho Falls to Denver (IDA - DEN)

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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — DEN
Mar 13 — Mar 201
Thu 3/13
Thu 3/20
1 adult, Economy
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The best prices from Idaho Falls Fanning Field to Denver Intl are usually found in April or December, booked 80 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Idaho Falls to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Denver (DEN). 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 March 8, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$117
(Cheapflightsfares)

Popular in

November

Cheapest in

April

Average price

$376

Good round-trip deal

$430 or less

Good one-way deal

$254 or less
Provider with most accurate pricing for Idaho Falls Fanning Field-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Denver Intl flights.
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From Idaho Falls Fanning Field to Denver Intl
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High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Idaho Falls Fanning Field to Denver Intl.
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Price to beat on a one-way flight from Idaho Falls Fanning Field to Denver Intl.
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Find flight deals from Idaho Falls to Denver

Cheapest flights from Idaho Falls to Denver
Explore the most affordable flight options available from Idaho Falls to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 8, 2025.

This United Airlines deal was found by Cheapflights users on 3/7. 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.
Mon 8/44:15 pmIDA - DEN
Nonstop1h 45mUnited Airlines
Sun 8/177:45 amDEN - IDA
Nonstop1h 43mUnited Airlines
Deal found 3/7$249
This Delta deal was found by Cheapflights users on 3/7. 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.
Wed 4/26:55 pmIDA - DEN
1 stop3h 36mDelta
Mon 4/76:05 pmDEN - IDA
1 stop4h 25mDelta
Deal found 3/7$269
This American Airlines deal was found by Cheapflights users on 3/7. 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.
Sat 5/107:00 amIDA - DEN
1 stop6h 55mAmerican Airlines
Fri 5/165:00 amDEN - IDA
1 stop7h 29mAmerican Airlines
Deal found 3/7$313
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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.
Thu 4/34:11 pmIDA - DEN
1 stop7h 47mAlaska Airlines
Thu 4/107:57 pmDEN - IDA
1 stop19h 37mAlaska Airlines
Deal found 3/7$383
This United deal was found by Cheapflights users on 3/7. 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.
Mon 8/45:57 pmIDA - DEN
Nonstop1h 43mMultiple Airlines
Mon 8/188:00 amDEN - IDA
1 stop14h 39mMultiple Airlines
Deal found 3/7$562

Find flights from Idaho Falls to Denver within your budget

Customize your flight search to find flights from Idaho Falls to Denver 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 March 8, 2025.

Fly from

Idaho Falls

Fly to

Denver

Route

Depart

Return

Price

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Sun 6/8

5:52 pm-7:40 pm

Nonstop1h 48m

Denver Intl

Sun 6/15

3:23 pm-5:07 pm

Nonstop1h 44m

$117

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Mon 8/4

5:57 pm-7:40 pm

Nonstop1h 43m

Denver Intl

Tue 8/19

7:45 am-9:28 am

Nonstop1h 43m

$249

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Wed 4/2

6:55 pm-10:31 pm

1 stop3h 36m

Denver Intl

Mon 4/7

6:05 pm-10:30 pm

1 stop4h 25m

$269

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Sat 5/10

7:00 am-1:55 pm

1 stop6h 55m

Denver Intl

Fri 5/16

5:00 am-12:29 pm

1 stop7h 29m

$313

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Thu 4/3

4:11 pm-11:58 pm

1 stop7h 47m

Denver Intl

Thu 4/10

7:57 pm-3:34 pm

1 stop19h 37m

$383

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Mon 8/4

5:57 pm-7:40 pm

Nonstop1h 43m

Denver Intl

Mon 8/18

8:00 am-10:39 pm

1 stop14h 39m

$562

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Sun 8/17

5:51 pm-7:39 pm

Nonstop1h 48m

$65

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Tue 8/19

6:10 am-9:37 am

1 stop3h 27m

$135

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Fri 8/15

5:57 pm-7:40 pm

Nonstop1h 43m

$150

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Wed 8/20

7:36 am-9:44 pm

2 stops14h 08m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 11 results
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Compare providers for flights from Idaho Falls to Denver

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 Idaho Falls to Denver in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Idaho Falls-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Idaho Falls-Denver 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 Idaho Falls-Denver 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 Idaho Falls to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Idaho Falls 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.

Travel insights for flights from Idaho Falls to Denver

Get recent, data-driven insights about flights from Idaho Falls to Denver including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Idaho Falls to Denver. Price data was last updated on March 7, 2025.

The price you pay for your flight from Idaho Falls to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 80 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 Idaho Falls to Denver?

Currently, October is the cheapest month in which you can book a flight from Idaho Falls to Denver (average of $197). Flying from Idaho Falls to Denver in March is currently the most expensive (average of $278). 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 IDA to DEN?

Find hourly flight availability from Idaho Falls to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 8, 2025.

When flying from Idaho Falls to Denver, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 31% versus a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Idaho Falls to Denver. Price data was last updated on March 2, 2025.

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

Rainfall in Denver by month

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

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

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

If weather is an important factor for your trip to Denver, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated March 8, 2025.
Alaska Airlines
8.0
Very good
9,716 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,716 reviews
Alaska Airlines
8.0
Very good
9,716 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,024 reviews
Alaska Airlines
8.0
Very good
9,716 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,649 reviews
Alaska Airlines
8.0
Very good
9,716 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Allegiant Air
7.3
Good
748 reviews
Alaska Airlines
8.0
Very good
9,716 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,716 reviews

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Denver. 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 Idaho Falls to Denver?

    If you book a flight from Idaho Falls to Denver, you will be flying from Fanning Field to Denver Intl. Flights to Denver Intl (DEN) from Idaho Falls Fanning Field (IDA) take 1h 42m for a nonstop flight. There are 2 flights from Fanning Field to Denver per day from 2 airlines.

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

    This flight path from Idaho Falls Fanning Field to Denver Intl was viewed by 15 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Our cheapest airline available from Idaho Falls to Denver is Allegiant Air. Our recent data shows that you can find tickets from as low as $117 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $249 and $269 round-trip. Allegiant Air is currently priced 66% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $295 on United Airlines. Other airlines that offer cheap prices include American Airlines from $305 and Alaska Airlines from $513 one-way.

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

    Before booking your flight to Denver from Idaho Falls, check out the most reliable airlines to get you to your destination on time: Copa Airlines (70%), SkyWest Airlines (64%), United Airlines( 64%).

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

    Looking for the cheapest flight from Idaho Falls to Denver? While on average our users pay $903, our data indicates the cheapest price to be $154. The most popular route (Idaho Falls Fanning Field - Denver Intl), is priced around $117.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho Falls to Denver 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 Idaho Falls to Denver?

    Currently, October is the cheapest month in which you can book a flight from Idaho Falls to Denver (average of $197). Flying from Idaho Falls to Denver in March is currently the most expensive (average of $278). 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

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Broomfield
Cripple Creek
Silverthorne
Golden
Brighton
Greeley
Frisco
Wheat Ridge
Grand Lake
Idaho Springs
Central City
Copper Mountain
Longmont
Thornton
Limon
Dillon

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Idaho Falls to Denver

Discover the top 2 airlines that operate flights from Idaho Falls to Denver. 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 March 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$247Average$351FlexibilityNo cancel feeOn-time69%
DeltaCheapest$258Average$308FlexibilityNo cancel feeOn-timeN/A
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