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Cheap flights from Idaho Falls to Denver from $109

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to Denver departing on 5/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Idaho Falls to Denver

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Idaho Falls to Denver.
Allegiant Air Logo
5:51 pm - 7:39 pmIDA-DEN
1h 48mnonstop
Allegiant Air Logo
3:24 pm - 5:06 pmDEN-IDA
1h 42mnonstop
$109Allegiant Air
Find Deal
jue., may. 22 - dom., may. 25
Allegiant Air Logo
5:49 pm - 7:37 pmIDA-DEN
1h 48mnonstop
Allegiant Air Logo
3:20 pm - 5:04 pmDEN-IDA
1h 44mnonstop
$123Allegiant Air
Find Deal
jue., jun. 19 - dom., jun. 22
Delta Logo
6:55 pm - 10:26 pmIDA-DEN
3h 31m1 stop
Delta Logo
6:05 pm - 10:56 pmDEN-IDA
4h 51m1 stop
$209Delta
Find Deal
jue., abr. 24 - lun., abr. 28
Delta Logo
6:00 am - 9:36 amIDA-DEN
3h 36m1 stop
Delta Logo
6:25 pm - 10:55 pmDEN-IDA
4h 30m1 stop
$229Delta
Find Deal
lun., may. 19 - sáb., may. 24
United Airlines Logo
4:15 pm - 5:57 pmIDA-DEN
1h 42mnonstop
United Airlines Logo
7:46 am - 9:32 amDEN-IDA
1h 46mnonstop
$239United Airlines
Find Deal
vie., abr. 25 - sáb., abr. 26
United Airlines Logo
2:20 pm - 4:05 pmIDA-DEN
1h 45mnonstop
United Airlines Logo
7:46 am - 9:32 amDEN-IDA
1h 46mnonstop
$249United Airlines
Find Deal
vie., abr. 18 - mar., abr. 22
Alaska Airlines Logo
6:00 am - 11:59 pmIDA-DEN
17h 59m1 stop
Alaska Airlines Logo
6:37 pm - 10:36 pmDEN-IDA
27h 59m2 stops
$437Alaska Airlines
Find Deal
vie., may. 9 - lun., may. 12
Alaska Airlines Logo
6:00 am - 9:15 pmIDA-DEN
15h 15m2 stops
Alaska Airlines Logo
7:55 pm - 10:36 pmDEN-IDA
26h 41m1 stop
$442Alaska Airlines
Find Deal
jue., abr. 24 - lun., abr. 28
 Logo
10:50 am - 12:36 pmIDA-DEN
1h 46mnonstop
 Logo
7:55 pm - 3:58 pmDEN-IDA
20h 03m1 stop
mar., abr. 22 - vie., abr. 25
 Logo
10:53 am - 12:38 pmIDA-DEN
1h 45mnonstop
 Logo
7:00 am - 10:36 pmDEN-IDA
15h 36m1 stop
vie., may. 2 - dom., may. 4

Allegiant Air flights from Idaho Falls to Denver

Our best Allegiant Air deals on Idaho Falls to Denver flight tickets
Allegiant Air
May 22
IDA5:51 pmIdaho Falls Fanning Field
1h 48m
DEN7:39 pmDenver Intl
May 25
DEN3:24 pmDenver Intl
1h 42m
IDA5:06 pmIdaho Falls Fanning Field
Allegiant Air
Jun 19
IDA5:49 pmIdaho Falls Fanning Field
1h 48m
DEN7:37 pmDenver Intl
Jun 22
DEN3:20 pmDenver Intl
1h 44m
IDA5:04 pmIdaho Falls Fanning Field

United Airlines flights from Idaho Falls to Denver

Our best United Airlines deals on Idaho Falls to Denver flight tickets
United Airlines
Apr 25
IDA4:15 pmIdaho Falls Fanning Field
1h 42m
DEN5:57 pmDenver Intl
Apr 26
DEN7:46 amDenver Intl
1h 46m
IDA9:32 amIdaho Falls Fanning Field
United Airlines
Apr 18
IDA2:20 pmIdaho Falls Fanning Field
1h 45m
DEN4:05 pmDenver Intl
Apr 22
DEN7:46 amDenver Intl
1h 46m
IDA9:32 amIdaho Falls Fanning Field
United Airlines
May 9
IDA4:22 pmIdaho Falls Fanning Field
1h 44m
DEN6:06 pmDenver Intl
May 12
DEN7:46 amDenver Intl
1h 46m
IDA9:32 amIdaho Falls Fanning Field

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 cheapest month to fly to Denver?

The cheapest month to fly to Denver from Idaho Falls is in April. Flight prices, which tend to average around $314, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in April, then you should wait until December to fly from Idaho Falls, when ticket prices are also cheap, with an average price of $319.

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 Tuesday when prices can be found for as low as $591. 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 $745.

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 $496. Flights in the morning are often more expensive with an average ticket price of $720.

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 19 weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $350 when searching 19 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 $185 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 April 2025, prices for Idaho Falls to Denver flights are approximately 39% cheaper 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

$212

Fastest flight time

1h 42m

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 $212. The best round-trip flight deal from Idaho Falls to Denver found on momondo in the last 72 hours is $109.
The fastest flight from Idaho Falls to Denver takes 1h 42m
Direct flights go from Idaho Falls to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)

  • 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 42m.

  • 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
United AirlinesPriceFrom $242Free CancellationRating
7.4
8,616 reviews
Search United Airlines flights
DeltaPriceFrom $258Free CancellationRating
8.0
7,897 reviews
Search Delta flights
  • United Airlines Flights From Idaho Falls to Denver

    United Airlines operates around 26 flights from Idaho Falls to Denver every week. The average price of these flights found in the last 72 hours has been $351, but momondo users have found United Airlines deals from Idaho Falls to Denver from as low as $242 round-trip. United Airlines has been scored 7.4/10 in 8,616 reviews.


Traveling to a place near Denver?

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

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.


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