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Idaho Falls

$157+ Cheap flights from Colorado to Idaho Falls (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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — IDA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 2/198:00 am
DEN
-
IDA
Nonstop1h 48m
United Airlines
Wed 2/255:33 pm
IDA
-
DEN
Nonstop1h 52m
United Airlines
Deal found 1/26$189
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/248:00 am
DEN
-
IDA
Nonstop1h 48m
United Airlines
Tue 3/35:33 pm
IDA
-
DEN
Nonstop1h 52m
United Airlines
Deal found 1/27$249
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 2/198:00 am
DEN
-
IDA
Nonstop1h 48m
United Airlines
Mon 2/235:33 pm
IDA
-
DEN
Nonstop1h 52m
United Airlines
Deal found 1/27$251
This Delta deal was found by Cheapflights users on 1/27. 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 2/243:59 pm
DEN
-
IDA
1 stop6h 22m
Delta
Tue 3/35:25 am
IDA
-
DEN
1 stop3h 59m
Delta
Deal found 1/27$254
This United Airlines deal was found by Cheapflights users on 1/28. 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 10/317:45 am
DEN
-
IDA
Nonstop1h 43m
United Airlines
Wed 11/42:35 pm
IDA
-
DEN
Nonstop1h 44m
United Airlines
Deal found 1/28$264
This Delta deal was found by Cheapflights users on 1/27. 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 2/2412:00 pm
COS
-
IDA
1 stop5h 49m
Delta
Tue 3/36:35 pm
IDA
-
COS
1 stop3h 46m
Delta
Deal found 1/27$269
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/118:00 am
DEN
-
IDA
Nonstop1h 56m
United Airlines
Sun 2/156:35 am
IDA
-
DEN
Nonstop2h 07m
United Airlines
Deal found 1/26$279
This Delta deal was found by Cheapflights users on 1/26. 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.
Thu 2/195:30 am
DEN
-
IDA
1 stop6h 52m
Delta
Wed 2/256:35 pm
IDA
-
DEN
1 stop3h 52m
Delta
Deal found 1/26$284
This Delta deal was found by Cheapflights users on 1/27. 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.
Thu 2/193:59 pm
DEN
-
IDA
1 stop6h 22m
Delta
Sun 2/225:25 am
IDA
-
DEN
1 stop3h 59m
Delta
Deal found 1/27$299
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/1110:33 am
COS
-
IDA
1 stop4h 58m
United Airlines
Sun 2/156:35 am
IDA
-
COS
1 stop4h 17m
United Airlines
Deal found 1/27$309
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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 2/257:00 am
DEN
-
IDA
1 stop16h 36m
Alaska Airlines
Wed 3/48:00 am
IDA
-
DEN
1 stop13h 23m
Alaska Airlines
Deal found 1/26$323
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 3/198:10 am
DEN
-
IDA
Nonstop1h 46m
United Airlines
Sun 3/226:36 am
IDA
-
DEN
Nonstop2h 05m
United Airlines
Deal found 1/27$324

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$189
(United Airlines)

One-way from

$157
(Kiwi.com)

Popular in

January

Cheapest in

June

Average price

$379

Good round-trip deal

$189 or less

Good one-way deal

$198 or less
Provider with most accurate pricing for Denver Intl-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Idaho Falls Fanning Field flights.
Search Deals
From Colorado to Idaho Falls Fanning Field
Search Deals
One-way flight from Colorado to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Colorado to Idaho Falls Fanning Field.
Search Deals
Price to beat on a one-way flight from Colorado to Idaho Falls Fanning Field.
Search Deals

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 January 29, 2026.
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

Sat 6/13

11:45 am-1:24 pm

Nonstop1h 39m

Idaho Falls Fanning Field

Sun 6/14

6:03 pm-7:56 pm

Nonstop1h 53m

$189

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Fri 6/12

11:45 am-1:24 pm

Nonstop1h 39m

Idaho Falls Fanning Field

Sun 6/14

6:03 pm-7:56 pm

Nonstop1h 53m

$189

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 2/26

8:00 am-9:48 am

Nonstop1h 48m

Idaho Falls Fanning Field

Sat 2/28

5:33 pm-7:25 pm

Nonstop1h 52m

$189

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Wed 2/25

8:00 am-9:48 am

Nonstop1h 48m

Idaho Falls Fanning Field

Wed 3/4

5:33 pm-7:25 pm

Nonstop1h 52m

$249

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Tue 2/24

11:45 am-1:30 pm

Nonstop1h 45m

Idaho Falls Fanning Field

Tue 3/3

5:33 pm-7:25 pm

Nonstop1h 52m

$249

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Thu 3/12

11:45 am-1:30 pm

Nonstop1h 45m

Idaho Falls Fanning Field

Mon 3/16

5:30 pm-7:22 pm

Nonstop1h 52m

$249

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Fri 2/20

8:00 am-9:48 am

Nonstop1h 48m

Idaho Falls Fanning Field

Fri 2/27

5:33 pm-7:25 pm

Nonstop1h 52m

$249

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Tue 2/24

3:59 pm-10:21 pm

1 stop6h 22m

Idaho Falls Fanning Field

Tue 3/3

5:25 am-9:24 am

1 stop3h 59m

$254

Colorado SpringsIdaho Falls

COS - IDA

COSIDA

Colorado Springs

Tue 2/24

12:00 pm-5:49 pm

1 stop5h 49m

Idaho Falls Fanning Field

Tue 3/3

6:35 pm-10:21 pm

1 stop3h 46m

$269

DenverIdaho Falls

DEN - IDA

DENIDA

Denver Intl

Wed 2/11

8:00 am-9:56 am

Nonstop1h 56m

Idaho Falls Fanning Field

Sun 2/15

6:35 am-8:42 am

Nonstop2h 07m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 28 results
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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, May is the cheapest month in which you can book a flight from Colorado to Idaho Falls (average of $37). Flying from Colorado to Idaho Falls in April is currently the most expensive (average of $238). 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 January 29, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 53% on flights from Colorado to Idaho Falls by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Colorado to Idaho Falls. Price data was last updated on January 24, 2026.

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

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 January 29, 2026.

The most flights from USCO to IDA are scheduled on a Monday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

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.

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

    This flight path from Colorado to Idaho Falls Fanning Field 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 Colorado to Idaho Falls?

    Airlines like United Airlines and Delta fly from Colorado to Idaho Falls in about 1h 39m. The time it takes to get you to your destination can typically vary by up to 4h 10m. The distance between Colorado and Idaho Falls is about 457 mi. This flight may include one or multiple stops.

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

    $42 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 Delta, with prices starting from $149 and $224, 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 United Airlines (83%), Copa Airlines (83%) or SkyWest Airlines (82%) 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 $119. While the most popular route (Denver Intl - Idaho Falls Fanning Field) can be booked for $189 on average, our data indicates $216 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, May is the cheapest month in which you can book a flight from Colorado to Idaho Falls (average of $37). Flying from Colorado to Idaho Falls in April is currently the most expensive (average of $238). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$40Average$88FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$189Average$332FlexibilityNo cancel feeOn-time69%

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