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Idaho Falls

$88+ Cheap flights from Colorado to Idaho Falls (IDA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IDA
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Colorado to Idaho Falls

Keep the following information in mind while searching for Colorado to Idaho Falls flight deals. Data was last updated July 31, 2025.

Round-trip from

$84
(Cheapflightsfares)

Popular in

December

Cheapest in

June

Average price

$208

Good round-trip deal

$88 or less

Good one-way deal

$50 or less
From Colorado to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 23% potential increase in price ($103 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Colorado to Idaho Falls Fanning Field.
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Price to beat on a one-way flight from Colorado to Idaho Falls Fanning Field.
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Find flight deals from Colorado to Idaho Falls

Cheapest flights from Colorado to Idaho Falls
Explore the most affordable flight options available from Colorado to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/103:20 pmDEN - IDA
Nonstop1h 44mAllegiant Air
Thu 8/145:51 pmIDA - DEN
Nonstop1h 48mAllegiant Air
Deal found 7/30$88
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 8/169:05 pmDEN - IDA
Nonstop1h 46mUnited Airlines
Wed 8/204:15 pmIDA - DEN
Nonstop1h 48mUnited Airlines
Deal found 7/31$199
This Delta deal was found by Cheapflights users on 7/30. 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.
Fri 8/155:45 amDEN - IDA
1 stop4h 54mDelta
Thu 8/216:52 pmIDA - DEN
1 stop3h 56mDelta
Deal found 7/30$214
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 8/115:00 amDEN - IDA
1 stop7h 16mAmerican Airlines
Wed 8/2012:46 pmIDA - DEN
1 stop7h 36mAmerican Airlines
Deal found 7/30$300
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 9/241:06 pmDEN - IDA
1 stop9h 33mAlaska Airlines
Wed 10/86:00 amIDA - DEN
2 stops13h 10mAlaska Airlines
Deal found 7/30$360
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 10/15:55 pmDRO - IDA
1 stop4h 54mUnited Airlines
Mon 10/65:56 pmIDA - DRO
1 stop4h 19mUnited Airlines
Deal found 7/30$420
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 9/146:00 amCOS - IDA
1 stop3h 47mUnited Airlines
Sun 9/215:00 amIDA - COS
1 stop4h 04mUnited Airlines
Deal found 7/31$428
This Delta deal was found by Cheapflights users on 7/31. 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 9/25:55 pmCOS - IDA
1 stop4h 32mDelta
Thu 9/46:52 pmIDA - COS
1 stop3h 26mDelta
Deal found 7/31$537

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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 July 31, 2025.
Use the filters below to find and compare flights from Colorado to Idaho Falls that are best for you.

Fly from

Colorado

Fly to

Idaho Falls

Route

Depart

Return

Price

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sun 8/10

3:20 pm-5:04 pm

Nonstop1h 44m

Idaho Falls Fanning Field

Thu 8/14

5:51 pm-7:39 pm

Nonstop1h 48m

$88

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Sat 8/16

9:05 pm-10:51 pm

Nonstop1h 46m

Idaho Falls Fanning Field

Wed 8/20

4:15 pm-6:03 pm

Nonstop1h 48m

$199

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Fri 8/15

5:45 am-10:39 am

1 stop4h 54m

Idaho Falls Fanning Field

Thu 8/21

6:52 pm-10:48 pm

1 stop3h 56m

$214

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Mon 8/11

5:00 am-12:16 pm

1 stop7h 16m

Idaho Falls Fanning Field

Wed 8/20

12:46 pm-8:22 pm

1 stop7h 36m

$300

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Wed 9/24

1:06 pm-10:39 pm

1 stop9h 33m

Idaho Falls Fanning Field

Wed 10/8

6:00 am-7:10 pm

2 stops13h 10m

$360

DurangoIdaho Falls

DRO - IDA

DROIDA

Durango La Plata County

Wed 10/1

5:55 pm-10:49 pm

1 stop4h 54m

Idaho Falls Fanning Field

Mon 10/6

5:56 pm-10:15 pm

1 stop4h 19m

$420

Colorado SpringsIdaho Falls

COS - IDA

COSIDA

Colorado Springs

Sun 9/14

6:00 am-9:47 am

1 stop3h 47m

Idaho Falls Fanning Field

Sun 9/21

5:00 am-9:04 am

1 stop4h 04m

$428

Colorado SpringsIdaho Falls

COS - IDA

COSIDA

Colorado Springs

Tue 9/2

5:55 pm-10:27 pm

1 stop4h 32m

Idaho Falls Fanning Field

Thu 9/4

6:52 pm-10:18 pm

1 stop3h 26m

$537

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Tue 8/19

6:25 pm-10:27 pm

1 stop4h 02m

$164

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Wed 12/3

12:30 pm-10:38 pm

2 stops10h 08m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 14 results
1
2

Best time to book a flight from Colorado to Idaho Falls

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

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

Currently, October is the cheapest month in which you can book a flight from Colorado to Idaho Falls (average of $380). Flying from Colorado to Idaho Falls in December is currently the most expensive (average of $578). 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 CO to IDA?

Find hourly flight availability from Colorado 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 July 31, 2025.

When flying from Colorado to Idaho Falls, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Colorado to Idaho Falls

Explore weekly flight availability from Colorado 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 July 31, 2025.

The most flights from USCO to IDA are scheduled on a Thursday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

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 July 31, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Colorado to Idaho Falls. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Allegiant Air
7.2
Good
702 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Colorado 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 airport do you fly into for flights to Idaho Falls from Colorado?

    Idaho Falls Fanning Field (IDA) is the airport you will fly into if you book a flight from Colorado to Idaho Falls. It is only a 3.8 mi journey from Fanning Field (IDA) to Idaho Falls’s city center.

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

    $90 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 Delta and Alaska Airlines, with prices starting from $164 and $181, respectively.

  • What are the most popular routes from Colorado to Idaho Falls?

    Most travelers choose Denver Intl - Idaho Falls Fanning Field, Colorado Springs - Idaho Falls Fanning Field or Durango La Plata County - Idaho Falls Fanning Field when deciding on the best route from Colorado to Idaho Falls.

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

    No one likes to see their flight delayed. When booking a flight from Colorado to Idaho Falls consider choosing Allegiant Air (69%), SkyWest Airlines (66%) or United Airlines (66%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for $42. While the most popular route (Denver Intl - Idaho Falls Fanning Field) can be booked for $84 on average our data indicates $190 when flying from Colorado to Idaho Falls.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Colorado to Idaho Falls (average of $380). Flying from Colorado to Idaho Falls in December is currently the most expensive (average of $578). 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
Rexburg

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Top 2 airlines flying from Colorado to Idaho Falls

Discover the top 2 airlines that operate flights from Colorado 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$44Average$88FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$227Average$347FlexibilityNo cancel feeOn-time69%

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