IDA - DEN

$52 Find Cheap Flights from Idaho Falls to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to Denver departing on 5/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Denver, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Idaho Falls to Denver

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Idaho Falls to Denver

KAYAK's recommended round-trip deals from the most popular airlines that fly from Idaho Falls to Denver.
Discover the best prices for you by selecting your travel dates on KAYAK.
Allegiant Air Logo
5:51 pm - 7:39 pmIDA-DEN
1h 48mnonstop
Allegiant Air Logo
3:24 pm - 5:06 pmDEN-IDA
1h 42mnonstop
$87Allegiant Air
Find Deal
Sun, May 25 - Thu, May 29
Allegiant Air Logo
5:51 pm - 7:39 pmIDA-DEN
1h 48mnonstop
Allegiant Air Logo
3:24 pm - 5:06 pmDEN-IDA
1h 42mnonstop
$92Allegiant Air
Find Deal
Sun, May 25 - Thu, May 29
United Airlines Logo
5:55 pm - 7:40 pmIDA-DEN
1h 45mnonstop
United Airlines Logo
8:00 am - 9:44 amDEN-IDA
1h 44mnonstop
$189United Airlines
Find Deal
Sat, May 24 - Mon, May 26
United Airlines Logo
6:03 pm - 7:45 pmIDA-DEN
1h 42mnonstop
United Airlines Logo
9:05 pm - 10:51 pmDEN-IDA
1h 46mnonstop
$194United Airlines
Find Deal
Fri, Jul 11 - Sun, Jul 13
Delta Logo
11:20 am - 3:01 pmIDA-DEN
3h 41m1 stop
Delta Logo
5:30 am - 10:34 amDEN-IDA
5h 04m1 stop
$209Delta
Find Deal
Sun, Jul 13 - Fri, Jul 25
Delta Logo
6:00 am - 9:24 amIDA-DEN
3h 24m1 stop
Delta Logo
5:30 am - 10:34 amDEN-IDA
5h 04m1 stop
$269Delta
Find Deal
Sun, Jul 20 - Fri, Aug 1
 Logo
6:00 am - 12:00 pmIDA-DEN
6h 00m1 stop
 Logo
3:24 pm - 5:06 pmDEN-IDA
1h 42mnonstop
Sun, May 25 - Thu, May 29
 Logo
6:00 am - 12:00 pmIDA-DEN
6h 00m1 stop
 Logo
3:24 pm - 5:06 pmDEN-IDA
1h 42mnonstop
Sun, May 25 - Thu, May 29
American Airlines Logo
7:00 am - 3:47 pmIDA-DEN
8h 47m1 stop
American Airlines Logo
5:00 am - 12:29 pmDEN-IDA
7h 29m1 stop
$390American Airlines
Find Deal
Sat, May 24 - Mon, May 26
American Airlines Logo
7:00 am - 3:47 pmIDA-DEN
8h 47m1 stop
American Airlines Logo
5:00 am - 12:29 pmDEN-IDA
7h 29m1 stop
$511American Airlines
Find Deal
Sun, May 25 - Mon, May 26
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KAYAK's insights & trends for Idaho Falls to Denver flights

Get data-powered insights and trends into flights from Idaho Falls to Denver to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Idaho Falls to Denver?

The average price of all round-trip flights from Idaho Falls to Denver clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Denver on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Idaho Falls to Denver. For your return ticket, we recommend flying on a Thursday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Idaho Falls to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Idaho Falls to Denver is April, where tickets cost $314 (return) on average. On the other hand, the most expensive months are March and November, where the average cost of round-trip tickets is $417 and $388 respectively.

Can I save money by flying with a layover from Idaho Falls to Denver?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $558, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Idaho Falls to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Idaho Falls to Denver, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$52
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Idaho Falls to Denver

When to book flights from Idaho Falls to Denver

Are your dates flexible? Find out the best times to travel from Idaho Falls to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Idaho Falls to Denver

  • What is the cheapest flight from Idaho Falls to Denver?

    In the last 3 days, the lowest price for a flight from Idaho Falls to Denver was $52 for a one-way ticket and $87 for a round-trip.

  • Do I need a passport to fly between Idaho Falls and Denver?

    No

  • Which airlines offer Wi-Fi service onboard planes from Idaho Falls to Denver?

    All the following airlines offer inflight Wi-Fi service on the Idaho Falls to Denver flight route: American Airlines, Aeromexico, Delta, Virgin Atlantic, Air France, JetBlue, and KLM.

  • Which aircraft models fly most regularly from Idaho Falls to Denver?

    The Canadair (Bombardier) Regional Jet 700 is the aircraft model that flies most regularly on the Idaho Falls to Denver flight route.

  • Which airline alliances offer flights from Idaho Falls to Denver?

    Star Alliance is the only airline alliance operating flights between Idaho Falls and Denver.

  • On which days can I fly direct from Idaho Falls to Denver?

    There are nonstop flights from Idaho Falls to Denver on a daily basis.

  • Which is the best airline for flights from Idaho Falls to Denver, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Idaho Falls to Denver are Delta and United Airlines. With an average price for the route of $307 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $346 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Idaho Falls to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho Falls to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Idaho Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho Falls to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Idaho Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Idaho Falls to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $234 or less one-way and $392 or less round-trip.

Prefer to fly direct from Idaho Falls to Denver?

Find which airlines fly direct from Idaho Falls Fanning Field Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Idaho Falls Fanning Field to Denver Intl

Monday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Thursday

Allegiant Air, Copa Airlines, United Airlines

Allegiant Air, Copa Airlines, +1 more

Friday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Saturday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Sunday

Allegiant Air, United Airlines, Copa Airlines

Allegiant Air, United Airlines, +1 more

See more direct flights

Direct returns

Denver Intl to Idaho Falls Fanning Field

Monday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Thursday

Allegiant Air, Copa Airlines, United Airlines

Allegiant Air, Copa Airlines, +1 more

Friday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Saturday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Sunday

Allegiant Air, United Airlines, Copa Airlines

Allegiant Air, United Airlines, +1 more

See more direct flights
See more direct flights

Top 3 airlines serving from Idaho Falls to Denver

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Idaho Falls to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7936 reviews
7.3Food
7.9Comfort
8.5Crew
7.9Entertainment
8.2Boarding
Airline reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

8.0 ExcellentFredrick, Apr 2025GSO - DTW
Read more Delta reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

Liked that we left on time for each flight. Snacks not the best, but we're okay.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

They boarded passengers that sat in the back of the plane first, making boarding very efficient.

I didn't even take this flight. My plans changed and I couldn't get ahold of customer service and the website kept breaking down during the attempt to change the flight. I wound up taking another airline entirely and eating the cost.

The worst flying experience ever 3 delays. No accommodations. Had to deboard the plane after being delayed.

Posted a 20minute delay but didn’t delay at all. Caused boarding issues and confusion. Also, didn’t release baggage. Took over an hour and 20 minutes to get luggage.

Flight was good, boarding was a breeze, flight attendants were friendly and professional. There was a medical issue with another passenger and the crew handled it in a calm and professional way.

Everything you need to know for your flight from Idaho Falls to Denver

Information on your arrival and departure airports

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