Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

DEN - IDA

Find cheap flights from Denver to Idaho Falls from $119

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Idaho Falls departing on 7/4. 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
0 bags
Sat 4/27
Sat 5/4

Search hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Idaho Falls, 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 Denver to Idaho Falls, as well as popular online travel agencies
In the last 7 days travelers have searched 47,584,047 times on KAYAK, and here is why:

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Denver to Idaho Falls

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Idaho Falls 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
3:31 pm - 5:15 pmDEN-IDA
1h 44mnonstop
5:56 pm - 7:40 pmIDA-DEN
1h 44mnonstop
$284United Airlines
Find Deal
Fri, Apr 26 - Sun, Apr 28
6:45 am - 11:56 pmDEN-IDA
17h 11m1 stop
3:32 pm - 11:58 pmIDA-DEN
8h 26m1 stop
$299Alaska Airlines
Find Deal
Wed, May 15 - Tue, May 21
6:15 pm - 10:05 pmDEN-IDA
3h 50m1 stop
6:00 am - 11:59 amIDA-DEN
5h 59m1 stop
$303Delta
Find Deal
Fri, May 3 - Sat, May 4
6:15 pm - 10:05 pmDEN-IDA
3h 50m1 stop
1:31 pm - 11:23 pmIDA-DEN
9h 52m2 stops
$311Delta
Find Deal
Sat, May 4 - Tue, May 7
6:15 pm - 10:06 pmDEN-IDA
3h 51m1 stop
7:00 pm - 11:10 pmIDA-DEN
4h 10m1 stop
$313Delta
Find Deal
Fri, Apr 26 - Sun, Apr 28
3:31 pm - 5:15 pmDEN-IDA
1h 44mnonstop
5:56 pm - 7:43 pmIDA-DEN
1h 47mnonstop
$316United Airlines
Find Deal
Wed, May 15 - Tue, May 21
7:20 pm - 9:07 pmDEN-IDA
1h 47mnonstop
5:56 pm - 7:40 pmIDA-DEN
1h 44mnonstop
$328United Airlines
Find Deal
Thu, Apr 18 - Mon, Apr 22
7:55 am - 9:43 amDEN-IDA
1h 48mnonstop
5:56 pm - 7:43 pmIDA-DEN
1h 47mnonstop
$349United Airlines
Find Deal
Fri, May 3 - Sat, May 4
2:51 pm - 9:37 pmDEN-IDA
6h 46m1 stop
6:38 am - 6:05 pmIDA-DEN
11h 27m2 stops
$523American Airlines
Find Deal
Fri, May 3 - Sat, May 4
7:00 am - 9:34 pmDEN-IDA
14h 34m2 stops
1:15 pm - 8:19 pmIDA-DEN
7h 04m1 stop
$525American Airlines
Find Deal
Mon, May 20 - Thu, May 23

Flights from Denver to Idaho Falls - Travel Insights & Trends

Get data-powered insights and trends into flights from Denver to Idaho Falls 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 Denver to Idaho Falls?

The average price of all flights from Denver to Idaho Falls clicked on KAYAK for each day over the last 12 months.
When flying from Denver to Idaho Falls, you should consider leaving on a Tuesday and avoid Mondays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Saturdays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Denver to Idaho Falls, 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 Denver to Idaho Falls is April, where tickets cost $243 on average. On the other hand, the most expensive months are February and March, where the average cost of tickets is $488 and $458 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Denver to Idaho Falls, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Denver to Idaho Falls, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 86 days before departure.

Which airlines provide the cheapest flights from Denver to Idaho Falls?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Denver to Idaho Falls found by KAYAK users in the last 72 hours was for $284 on United Airlines, followed by Alaska Airlines ($299). One-way flight deals have also been found from as low as $145 on United Airlines and from $152 on Alaska Airlines.

Which airlines fly non-stop between Denver and Idaho Falls?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Denver to Idaho Falls.
There is just one airline that flies from Denver to Idaho Falls direct and that is United Airlines. The best one-way deal found from United Airlines for the route is $179.

How many flights are there between Denver and Idaho Falls per day?

Each day, there are 3 nonstop flights that take off from Denver and land in Idaho Falls, with an average flight time of 1h 47m. The most common departure time is 7:00 pm and most flights take off in the evening. Each week, there are 21 flights and there are the same amount of flights each day 3.

Which cabin class options are there for flights between Denver and Idaho Falls?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Denver to Idaho Falls take?

The duration of a nonstop flight to Idaho Falls from Denver is typically 1h 43m. The journey crosses a distance of 457 miles.

What’s the earliest departure time from Denver to Idaho Falls?

Early birds can take the earliest flight from Denver at 7:55 am and will be landing in Idaho Falls at 9:43 am.

What’s the latest departure time from Denver to Idaho Falls?

If you prefer to fly at night, the latest flight from Denver to Idaho Falls jets off at 7:20 pm and lands at 9:07 pm.

Good to know

Low season

January

High season

December

Cheapest flight

$119
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Denver to Idaho Falls

When to book flights from Denver to Idaho Falls

Are your dates flexible? Find out the best times to travel from Denver to Idaho Falls 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 Denver to Idaho Falls

  • What documents do I need for my flight from Denver to Idaho Falls?

    American citizens can travel to France for tourism or business purposes without a visa for a maximum duration of 90 days. As long as the trip falls within this timeframe and you meet the entry requirements such as having a valid identification document, you can fly to Idaho Falls seamlessly.

  • What are the cancellation and refund policies for flights on this route?

    The cancellation and refund policies vary depending on the airline chosen. Delta Airlines allows you to cancel or change your eTicket within one day of purchase for a full refund. However, cancellations made 30 days or less before the scheduled arrival become nonrefundable. As for American Airlines, if you book your ticket at least two days before departure, you have until 24 hours from the time of purchase to cancel and request a refund.

  • What are the pet-friendly airlines operating this route?

    Several airlines operating the Denver to Idaho Falls route allow pets. Some pet-friendly options include American Airlines, Delta Air Lines, and Allegiant Air. Copa Airlines allows only small dogs and cats in the cabin. Your pet can travel in the cabin with you as a carry-on, under the seat in front of you.

  • Are there specific services for passengers with disabilities or special needs traveling from Denver to Idaho Falls?

    Yes, Airlines such as United, Delta, American, and Copa Airlines offer services like wheelchair assistance, priority boarding, and special seating arrangements. Denver International Airport and Idaho Falls Fanning Field Airport have accessibility services to cater to the needs of passengers with disabilities.

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

    In the last 3 days, the lowest price for a flight from Denver to Idaho Falls was $119 for a one-way ticket and $284 for a round-trip.

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

    No

  • Which airports will I be using when flying from Denver to Idaho Falls?

    When flying out of Denver you will be using Denver Intl. You will be landing at Idaho Falls, also known as Idaho Falls Fanning Field.

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

    The Canadair (Bombardier) Regional Jet 900 is the aircraft model that flies most regularly on the Denver to Idaho Falls flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Denver to Idaho Falls are Delta and United Airlines. With an average price for the route of $267 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 $327 and an overall rating of 7.4.

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

    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 Denver to Idaho Falls.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Denver 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 Denver to Idaho Falls?

    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 Idaho Falls with an airline and back to Denver with another airline. Booking your flights between Denver and IDA 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 Denver to Idaho Falls?

    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 Idaho Falls from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from DEN to Idaho Falls

  • Looking for a cheap flight? 25% of our users found flights on this route for $255 or less one-way and $323 or less round-trip.
  • Denver International Airport (DEN) is conveniently located about 25 miles northeast of downtown Denver. The airport is well-connected with various transportation modes such as the A Line commuter train that provides a quick connection from downtown to the airport. Hence, you can easily catch your flights without worrying about traffic or parking.
  • For flights from Denver to Idaho Falls (IDA), common layovers include Salt Lake City (SLC) for Delta Airlines, Las Vegas Harry Reid Intl (LAS) for Frontier and Allegiant Air, and Dallas/Fort Worth (DFW) for American Airlines. These layovers provide opportunities for you to rest, grab a bite to eat, or explore these cities before continuing your journey to Idaho Falls.
  • Be aware of the luggage restrictions imposed by the airlines to avoid unnecessary delays. American Airlines can allow you to check bags with a maximum size limit of 62 inches and a weight limit of 50 lbs or 70 lbs for First/Business class passengers. However, excess charged bags must not exceed 50 lbs. United Airlines permits Economy ticket holders and Premier Gold members to check two complimentary bags weighing up to 70 lbs each.
  • We recommend upgrading to a first-class seat, particularly if your flight involves a layover. Airlines such as Delta, United, and American Airlines offer this option, allowing you an opportunity to enjoy enhanced comfort, priority boarding, extra legroom, exclusive amenities, and premium dining during your journey.
  • For unaccompanied minors, Delta and United Airlines allow children between the ages of 5 and 14 to travel unaccompanied. On American Airlines, children aged 5 and above can travel without an adult on direct flights, while connecting flights require children to be between 8 and 14 years old.
See more tips

Prefer to fly non-stop from Denver to Idaho Falls?

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

Nonstop departures

Denver Intl to Idaho Falls Fanning Field

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Nonstop returns

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

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Friday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Saturday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

Sunday

Copa Airlines, United Airlines

Copa Airlines, United Airlines

See more direct flights
See more direct flights

Top airlines flying from Denver to Idaho Falls

Need help choosing which airline to fly with from Denver to Idaho Falls? 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 KAYAK reviews.
8.0
DeltaOverall score based on 11418 reviews
75food
79comfort
82boarding
81overall
80entertainment
86crew
Airline reviews

Carly the flight attendant was extremely helpful and very accommodating to passengers on the flight from what I noticed. Couldn't be more satisfied with the service and assistance from Delta's flight attendant, Thanks again Carly!!

Read more about Delta

Carly the flight attendant was extremely helpful and very accommodating to passengers on the flight from what I noticed. Couldn't be more satisfied with the service and assistance from Delta's flight attendant, Thanks again Carly!!

I didn’t not like that I could not select my seat and ended up with the worse seat.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Delta did an awful job w logistics at DTW. Missed connection. We were there an hour early. SUCKED

Inflight entertainment stopped working as we taxi to runway and never worked again until landing and taxi to gate. Grrrr

Had to run to make it only to have the flight delayed to wait for all the late connectors Second drink service skipped up

Boarding was a sh!t show. JFK BOARDING was awful. The agent called three sections at a time Clogging the area then yelling at people to not block the walk way. How are you going to call delta one , premium select and comfort plus at once and the yell at highest paying passengers. Need to do a lot better and the flight attendants in the galley need to understand that their voices travel. They were talking about others and everyone in the cabin heard them

Uncomfortable seats on 14 hour flight. Mediocre food. On time and great crew.

MSP to Atlanta was much better than Atlanta to St. Kitts. Paid $180 each for myself and wife for Delta comfort from Atlanta to St. Kitts. Seats were more narrow and obviously old and worn out. Tailbone is killing me. Seat would not recline. Seats behind reclined and we were not an exit row or in front of an exit row. Entertainment did not work in that the movie jumped forward and back and there was no audio. The plug in the arm rest was loose. Flight attendant tried “resetting” the video for my seat but no good. She never checked back. Someone else near me had the same issue. Touch screen was unresponsive. No where near as comfortable as MSP to Atlanta flight. 3 plus hrs. flight time without the basic amenities and not even remotely close to comfortable but paid for Comfort plus. I will be very disappointed if I have the same on my return “Comfort Plus” flight St. Kitts to Atlanta. At the very least my wife and I should be refunded for round trip “Comfort Plus” charges. Please feel free to contact me directly for more details.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Everything was very good. Boarding and takeoff were on time and organized. Had a good flight

Wheelchair assistance was not complete. The person left me at the departure gate without informing the groundstaff of my requirements. I had to walk to the departure counter to ask for help to reach the plane door. The crew informed me that in future they were not allowed to help passengers like me, senior citizen and Wheelchair passenger with placing their carry on bags in the overhead compartments!

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

Seats are way too snug for my hip to knee ratio and the recline on the seat in front of me made my experience worst. My legs had no room at all. Not a plane for people 6 ft or over unless you fly first class.

Delayed for maintenance issue?? Should have been addressed before boarding. Put my bag on an earlier flight, but didn’t ask if I wanted to change to an earlier flight. Arrived to find my bag locked up and no agent to be found when I landed.

We learned certain countries (a few) require a notarized letter from an ex to give permission for children to travel to those countries with the other spouse together with birth certificates. To find this out one hour before flying—not good. Nowhere is it documented by the airlines though they require it. Make sure about all documentation required.

You could have been ON TIME! And I was miffed because I spent an extra $82 to get my seat and the steward put a woman from the back in my aisle for nothing because her movies wouldn’t work. I’ll try that next time and save $82!

My luggage didn't make my transfer in Newark. It took 4 days to receive it even though I tried to pick it up at the airpory

Again a nearly five hour flight and pretzels is all the food you get and all you can drink water. No electric plugs in economy. Staff was totally not caring. Delta next time

Book cheap flights from Denver to Idaho Falls

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Denver to Idaho Falls found on KAYAK in the last 72 hours.
7/4Thu
1 stop
9h 27mDEN-IDA
$119
5/9Thu
1 stop
14h 25mDEN-IDA
$141
5/9Thu
nonstopUnited Airlines
1h 48mDEN-IDA
$145
5/15Wed
1 stopAlaska Airlines
8h 06mDEN-IDA
$152
5/10Fri
1 stopAmerican Airlines
6h 42mDEN-IDA
$154
7/4Thu
nonstopUnited Airlines
1h 43mDEN-IDA
$164
4/29Mon
1 stopDelta
4h 04mDEN-IDA
$179
5/27Mon
1 stopDelta
3h 48mDEN-IDA
$209
5/15Wed
2 stopsAmerican Airlines
14h 34mDEN-IDA
$264
6/28Fri
1 stopAlaska Airlines
26h 12mDEN-IDA
$282

Search by stops

Search by airline

Search by price

Last minute flights from Denver to Idaho Falls

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Denver to Idaho Falls that are departing in the next 10 days.
3/29Fri
multi-stopAmerican Airlines
6h 42mDEN-IDA
3/30Sat
multi-stopAmerican Airlines
7h 01mIDA-DEN
$323
3/29Fri
multi-stopAmerican Airlines
6h 42mDEN-IDA
3/30Sat
multi-stopAmerican Airlines
15h 03mIDA-DEN
$535
4/1Mon
multi-stop
9h 43mDEN-IDA
4/5Fri
multi-stop
11h 43mIDA-DEN
$558
4/1Mon
nonstopUnited Airlines
1h 44mDEN-IDA
4/5Fri
nonstopUnited Airlines
1h 44mIDA-DEN
$584
3/29Fri
multi-stopAmerican Airlines
13h 27mDEN-IDA
3/30Sat
multi-stopAmerican Airlines
11h 14mIDA-DEN
$599
3/29Fri
nonstopUnited Airlines
1h 50mDEN-IDA
3/30Sat
nonstopUnited Airlines
1h 50mIDA-DEN
$624
4/1Mon
multi-stopAmerican Airlines
13h 27mDEN-IDA
4/5Fri
multi-stopAmerican Airlines
5h 55mIDA-DEN
$653
4/1Mon
multi-stopAmerican Airlines
13h 53mDEN-IDA
4/5Fri
multi-stopAmerican Airlines
23h 45mIDA-DEN
$940

Search by stops

Search by airline

Search by price

Denver - Idaho Falls Flights

Departure:

Denver (DEN)United States

Destination:

Idaho Falls (IDA)United States

Return flight deals:

Idaho Falls - Denver

Cabin classes:

$318
$269