Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Idaho Falls to Denver from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to Denver departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Idaho Falls to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:40 pm - 4:31 pmIDA-DEN
1h 51mnonstop
United Airlines Logo
11:45 am - 1:30 pmDEN-IDA
1h 45mnonstop
$189United Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
United Airlines Logo
2:30 pm - 4:21 pmIDA-DEN
1h 51mnonstop
United Airlines Logo
8:00 am - 9:58 amDEN-IDA
1h 58mnonstop
$199United Airlines
Find Deal
Wed, Dec 24 - Sun, Dec 28
Multiple Airlines Logo
4:39 pm - 3:58 amIDA-DEN
11h 19m1 stop
Multiple Airlines Logo
9:56 am - 2:36 pmDEN-IDA
28h 40m1 stop
$223Multiple Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Multiple Airlines Logo
9:20 pm - 10:03 amIDA-DEN
12h 43m1 stop
Multiple Airlines Logo
8:00 am - 2:19 pmDEN-IDA
6h 19m1 stop
$235Multiple Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
United Airlines Logo
5:00 am - 7:03 amIDA-DEN
2h 03mnonstop
United Airlines Logo
8:00 am - 9:58 amDEN-IDA
1h 58mnonstop
$249United Airlines
Find Deal
Sat, Dec 20 - Mon, Dec 22
Multiple Airlines Logo
4:39 pm - 10:12 amIDA-DEN
17h 33m2 stops
Multiple Airlines Logo
7:33 am - 3:49 pmDEN-IDA
8h 16m1 stop
$262Multiple Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
United Airlines Logo
5:00 am - 7:03 amIDA-DEN
2h 03mnonstop
United Airlines Logo
8:00 am - 9:58 amDEN-IDA
1h 58mnonstop
$264United Airlines
Find Deal
Mon, Dec 22 - Sun, Dec 28
Multiple Airlines Logo
9:20 pm - 6:38 pmIDA-DEN
21h 18m2 stops
Multiple Airlines Logo
8:00 am - 2:19 pmDEN-IDA
6h 19m1 stop
$267Multiple Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
Delta Logo
7:06 pm - 10:44 pmIDA-DEN
3h 38m1 stop
Delta Logo
6:22 pm - 10:21 pmDEN-IDA
3h 59m1 stop
$269Delta
Find Deal
Fri, Dec 5 - Mon, Dec 8
United Airlines Logo
7:00 am - 8:55 amIDA-DEN
1h 55mnonstop
United Airlines Logo
7:25 pm - 9:12 pmDEN-IDA
1h 47mnonstop
$279United Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8

Alaska Airlines flights from Idaho Falls to Denver

Our best Alaska Airlines deals on Idaho Falls to Denver flight tickets
Alaska Airlines
Jan 30
IDA6:58 pmIdaho Falls Fanning Field
17h 40m
1 stop
DEN12:38 pmDenver Intl
Feb 2
DEN1:34 pmDenver Intl
28h 44m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
$312
Find similar
Alaska Airlines
Jan 30
IDA6:58 pmIdaho Falls Fanning Field
21h 15m
1 stop
DEN4:13 pmDenver Intl
Feb 2
DEN11:49 amDenver Intl
30h 29m
2 stops
IDA6:18 pmIdaho Falls Fanning Field
$318
Find similar
Alaska Airlines
Dec 10
IDA5:07 pmIdaho Falls Fanning Field
18h 54m
2 stops
DEN12:01 pmDenver Intl
Dec 16
DEN6:45 amDenver Intl
9h 42m
1 stop
IDA4:27 pmIdaho Falls Fanning Field
$334
Find similar

Delta flights from Idaho Falls to Denver

Our best Delta deals on Idaho Falls to Denver flight tickets
Delta
Dec 5
IDA7:06 pmIdaho Falls Fanning Field
3h 38m
1 stop
DEN10:44 pmDenver Intl
Dec 8
DEN6:22 pmDenver Intl
3h 59m
1 stop
IDA10:21 pmIdaho Falls Fanning Field
$269
Find similar
Delta
Jan 10
IDA5:25 amIdaho Falls Fanning Field
4h 06m
1 stop
DEN9:31 amDenver Intl
Jan 12
DEN6:23 pmDenver Intl
3h 56m
1 stop
IDA10:19 pmIdaho Falls Fanning Field
$309
Find similar
Delta
Jan 3
IDA6:57 pmIdaho Falls Fanning Field
3h 59m
1 stop
DEN10:56 pmDenver Intl
Jan 10
DEN7:00 amDenver Intl
5h 34m
1 stop
IDA12:34 pmIdaho Falls Fanning Field
$329
Find similar

momondo Fare Finder

 
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, momondo users made 832,500 searches. Data last updated November 21, 2025.
Use the filters below to find and compare flights from Idaho Falls to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Fri 1/9

2:40 pm-4:31 pm

Nonstop1h 51m

Denver Intl

Mon 1/12

11:45 am-1:30 pm

Nonstop1h 45m

$189

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Wed 12/24

2:30 pm-4:21 pm

Nonstop1h 51m

Denver Intl

Sun 12/28

8:00 am-9:58 am

Nonstop1h 58m

$199

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Thu 12/4

4:39 pm-3:58 am

1 stop11h 19m

Denver Intl

Thu 12/11

9:56 am-2:36 pm

1 stop28h 40m

$223

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Fri 1/9

9:20 pm-10:03 am

1 stop12h 43m

Denver Intl

Mon 1/12

8:00 am-2:19 pm

1 stop6h 19m

$235

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Sat 12/20

5:00 am-7:03 am

Nonstop2h 03m

Denver Intl

Mon 12/22

8:00 am-9:58 am

Nonstop1h 58m

$249

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Thu 12/4

4:39 pm-10:12 am

2 stops17h 33m

Denver Intl

Thu 12/11

7:33 am-3:49 pm

1 stop8h 16m

$262

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Mon 12/22

5:00 am-7:03 am

Nonstop2h 03m

Denver Intl

Sun 12/28

8:00 am-9:58 am

Nonstop1h 58m

$264

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Fri 1/9

9:20 pm-6:38 pm

2 stops21h 18m

Denver Intl

Mon 1/12

8:00 am-2:19 pm

1 stop6h 19m

$267

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Fri 12/5

7:06 pm-10:44 pm

1 stop3h 38m

Denver Intl

Mon 12/8

6:22 pm-10:21 pm

1 stop3h 59m

$269

Idaho FallsDenver

IDA - DEN

IDADEN

Idaho Falls Fanning Field

Fri 12/5

7:00 am-8:55 am

Nonstop1h 55m

Denver Intl

Mon 12/8

7:25 pm-9:12 pm

Nonstop1h 47m

$279

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Denver from

How to get the cheapest flight ticket from Idaho Falls to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Idaho Falls and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Idaho Falls is in July. Flight prices, which tend to average around $213, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in July, then you should wait until October to fly from Idaho Falls, when ticket prices are also cheap, with an average price of $224.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Thursday when prices can be found for as low as $527. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $684.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $431. Flights in the morning are often more expensive with an average ticket price of $618.

What is the cheapest Idaho Falls Fanning Field to Denver Intl flight route?

Fly from Idaho Falls Fanning Field to Denver Intl for the best Idaho Falls Fanning Field - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Idaho Falls when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $298 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Idaho Falls for as low as $208 on momondo.

What cabin class options are available on Idaho Falls Fanning Field to Denver Intl flights?

There are 4 cabin classes available to choose from on Idaho Falls Fanning Field to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Idaho Falls to Denver flight prices changed over time?

As of November 2025, prices for Idaho Falls to Denver flights are approximately 20% more expensive when compared to flights at the same time last year.

When to book flights from Idaho Falls to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Idaho Falls to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Idaho Falls to Denver (IDA to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho Falls to Denver

Best Price Found

$279

Fastest flight time

1h 46m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Idaho Falls in the past 72 hours is $279. The best round-trip flight deal from Idaho Falls to Denver found on momondo in the last 72 hours is $379.
The fastest flight from Idaho Falls to Denver takes 1h 46m
Direct flights go from Idaho Falls to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)
Search flight deals

  • How far is Idaho Falls Fanning Field to Denver Intl by plane?

    A flight from Idaho Falls Fanning Field to Denver Intl will travel around 445.5 mi. By plane, this route typically takes 1h 48m.

  • When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to Denver Intl Airport?

    Prices for flights from Idaho Falls Fanning Field Airport to Denver Intl Airport are updated daily.

  • How many operators does momondo search for flights from Idaho Falls Fanning Field Airport to Denver Intl Airport?

  • How old do you have to be to fly from Idaho Falls Fanning Field Airport to Denver Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Idaho Falls to Denver?

  • What is the most popular airline from Idaho Falls to Denver?

Best airlines flying from Idaho Falls to Denver

Compare and see reviews for airlines that fly from Idaho Falls to Denver with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $54Free CancellationRating
7.2
700 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,029 reviews
Search United Airlines flights
DeltaPriceFrom $208Free CancellationRating
7.9
8,002 reviews
Search Delta flights

  • United Airlines Flights From Idaho Falls to Denver

    United Airlines operates around 34 flights from Idaho Falls to Denver every week. The average price of these flights found in the last 72 hours has been $312, but momondo users have found United Airlines deals from Idaho Falls to Denver from as low as $189 round-trip. United Airlines has been scored 7.4/10 in 9,029 reviews.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Keystone
Cripple Creek
Manitou Springs
Longmont
Boulder
Greeley
Lakewood
Thornton
Westminster
Winter Park
Copper Mountain
Silverthorne
Frisco
Centennial
Grand Lake

Why use momondo?

Why should I use momondo to find a flight deal from Idaho Falls to Denver?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Denver from Idaho Falls.

Can I find flights from Idaho Falls to Denver with flexible booking policies on momondo?

Flights from Idaho Falls to Denver with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Idaho Falls to Denver?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Idaho Falls.

I’m not ready to book a flight from Idaho Falls to Denver right now. Can momondo alert me if prices change?

Price alerts on flights to Denver from Idaho Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Denver trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 12/21
Sun 12/28
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States