$54 Find Cheap Flights from Idaho Falls to the United States

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 the United States departing on 2/2. 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
1 adult, Economy, 0 bags

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Cheap Flights from Idaho Falls to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New York1 stop$355
Los Angeles
Los Angeles1 stop$195
Las Vegas
Las Vegasnonstop$98
Chicago
Chicago1 stop$264
Miami
Miami1 stop$388
San Francisco
San Francisco1 stop$255
Boston
Boston1 stop$421
Denver
Denvernonstop$189
Fort Lauderdale
Fort Lauderdale2 stops$418
Seattle
Seattlenonstop$177
Atlanta
Atlanta1 stop$362
Dallas
Dallas1 stop$206
Tampa
Tampa2 stops$392
Houston
Houston1 stop$249
Honolulu
Honolulu1 stop$456
San Diego
San Diego1 stop$230
Philadelphia
Philadelphia1 stop$449
New York
New York1 stop$355
Los Angeles
Los Angeles1 stop$195
Las Vegas
Las Vegasnonstop$98
Chicago
Chicago1 stop$264
Miami
Miami1 stop$388
San Francisco
San Francisco1 stop$255
Boston
Boston1 stop$421
Denver
Denvernonstop$189
Fort Lauderdale
Fort Lauderdale2 stops$418
Seattle
Seattlenonstop$177
Atlanta
Atlanta1 stop$362
Dallas
Dallas1 stop$206
Tampa
Tampa2 stops$392
Houston
Houston1 stop$249
Honolulu
Honolulu1 stop$456
San Diego
San Diego1 stop$230
Philadelphia
Philadelphia1 stop$449

Book Cheap Idaho Falls to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to the United States 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Idaho Falls to the United States

Mon, Feb 9 - Fri, Feb 13
Allegiant Air Logo
9:20 pm - 10:07 pm
IDA
-
LAS
1h 47mnonstop
Allegiant Air Logo
12:45 pm - 3:31 pm
LAS
-
IDA
1h 46mnonstop
$98Allegiant Air
Mon, Feb 9 - Fri, Feb 13
Allegiant Air Logo
9:20 pm - 10:07 pm
IDA
-
LAS
1h 47mnonstop
Allegiant Air Logo
12:45 pm - 3:31 pm
LAS
-
IDA
1h 46mnonstop
$102Allegiant Air
Fri, Feb 6 - Mon, Feb 9
Alaska Airlines Logo
6:58 pm - 10:46 pm
IDA
-
PDX
4h 48m1 stop
Alaska Airlines Logo
5:35 pm - 10:59 pm
PDX
-
IDA
4h 24m1 stop
$157Alaska Airlines
Tue, Feb 3 - Wed, Feb 25
Alaska Airlines Logo
9:00 am - 10:10 am
IDA
-
SEA
2h 10mnonstop
Alaska Airlines Logo
8:52 pm - 11:36 pm
SEA
-
IDA
1h 44mnonstop
$177Alaska Airlines
Fri, Feb 6 - Sun, Feb 8
United Airlines Logo
2:40 pm - 4:31 pm
IDA
-
DEN
1h 51mnonstop
United Airlines Logo
11:45 am - 1:30 pm
DEN
-
IDA
1h 45mnonstop
$189United Airlines
Mon, Mar 16 - Tue, Mar 24
Hawaiian Airlines Logo
8:00 am - 9:07 am
IDA
-
SEA
2h 07mnonstop
Hawaiian Airlines Logo
8:04 pm - 10:52 pm
SEA
-
IDA
1h 48mnonstop
$192Hawaiian Airlines
Wed, Jun 17 - Sun, Jun 21
United Airlines Logo
5:57 pm - 7:40 pm
IDA
-
DEN
1h 43mnonstop
United Airlines Logo
11:50 am - 1:31 pm
DEN
-
IDA
1h 41mnonstop
$198United Airlines
Fri, Feb 20 - Mon, Feb 23
Delta Logo
6:35 pm - 10:27 pm
IDA
-
DEN
3h 52m1 stop
Delta Logo
6:20 pm - 10:21 pm
DEN
-
IDA
4h 01m1 stop
$209Delta
Thu, Mar 5 - Sun, Mar 8
Delta Logo
6:35 pm - 10:27 pm
IDA
-
DEN
3h 52m1 stop
Delta Logo
6:15 pm - 10:20 pm
DEN
-
IDA
4h 05m1 stop
$224Delta
Tue, Feb 24 - Tue, Mar 3
Hawaiian Airlines Logo
5:20 pm - 11:03 pm
IDA
-
SAN
6h 43m1 stop
Hawaiian Airlines Logo
8:39 am - 4:43 pm
SAN
-
IDA
7h 04m1 stop
$230Hawaiian Airlines
Booking Insights

KAYAK's insights & trends for Idaho Falls to the United States flights

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

What is the cheapest Idaho Falls to the United States flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United States from Idaho Falls found in the last 72 hours was to Las Vegas, at $117 round-trip. The most popular route is from Idaho Falls (IDA) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $189.

Can I save money by flying with a layover from Idaho Falls to the United States?

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 $330, prices are generally cheapest when you fly direct.

Good to know

Low seasonJuly
Cheapest flight$54
Most popular time to fly and prices are also 1% lower on average.
Flight from Idaho Falls to Las Vegas

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Idaho Falls to the United States?

    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 the United States.

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

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

    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 from Idaho Falls to the United States with an airline and back with another airline.

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

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

Top tips for finding cheap flights to the United States

  • Looking for a cheap flight? 25% of our users found tickets from Idaho Falls to the following destinations at these prices or less: Denver $247 one-way - $379 round-trip; Seattle $206 one-way - $258 round-trip; Salt Lake City $258 one-way - $383 round-trip

Reviews of the top 5 airlines serving from Idaho Falls to the United States

 
Need help choosing which airline to fly with from Idaho Falls to the United States? 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
Alaska AirlinesOverall score based on 11678 reviews
8.5Crew
7.8Comfort
7.0Entertainment
7.1Food
8.1Boarding
Airline reviews

I paid for WiFi but it never really worked. That was frustrating.

10.0 ExcellentMaureen, Jan 2026
HNL - PAE
Read more Alaska Airlines reviews

I paid for WiFi but it never really worked. That was frustrating.

My flight from Spokane to Seattle was delayed about 26 minutes. I arrived at Seattle Airport at 3:21. My flight to Idaho Falls left at 3:35 and you all wouldn't wait for me. I ran for the gate and It would have cost you probably 10 min to wait. Now, I'm stuck at the Seattle airport for 5 hours. I would understand if waiting put you 30 min behind or an hour but I checked into that flight, you knew I was coming, and that my flight was delayed.

You need categories to note when food and entertainment are not available. Alaska's system would not update flight info on the board for this flight, so there was some confusion after deplaning from the previous flight as to which gate and depart time were accurate for this flight.

You need categories to denote when food and entertainment are not available.

we waited for 50 minutes to check a bag and missed a flight. do better.

Honestly the bathroom cabinet under sink fell out and was completely broken. The floor or walkway was worn out and it smelled wierd. But the seats were terrible for comfort. I truly hope that my trip home in February is better.

The cabin crew was absolutely wonderful, the service was great and it was just a good flight overall.

Alaska is generally the airline I fly nearly all the time. I nearly always have wonderful experiences on Alaska and never a complaint. However, this entire flight felt like we were in the cheap seats the entire time and I had even upgraded to a cushier seat. For an over six hour flight (that became 7 hours) there was no online entertainment. I couldn’t connect to Wi-Fi and we were offered one snack and one drink. We were instructed to go to a particular baggage claim and 30 minutes later our bag still hadn’t come out and it turned out it was the wrong carousel announced. So overall, this flight was a series of mishaps really less than mediocre service even though flight attendants were wonderful.

The flight crew was very professional and pleasant. Our flight was delayed 3 hours, but Kayak informed me in advance

I really hate the seat assignment at the gate. I understand it is so families can sit together but it caused me and others a lot of unnecessary stress and confusion, enough for me to not fly Alaska again. The app is so awful that it did not even update my seat assignment on the boarding pass but sent me a notification of my seat... it showed in Apple Wallet but not in the Alaska app itself. That only made the stress worse. I think most people like myself prefer to know where they are seated at check in 24 hours before so they don't have to anxiously hang out at the gate the entire time. This is not a good use of your agents time either to be dealing with all of us asking where we are sitting. You should automatically assign the multiple seat purchases to be together before they check in and fill us solo travelers in those gaps as we check in.

Food is basically Sun Chips, cookies or Cheezits. I had an exit row seat so I had plenty of room. The crew was very nice and efficient. Pilot kept us informed. Pretty good flight.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

UGH I HAD TO MISS MY FIRST FLIGHT TO TAMPA CAUSE OF THE 10 MINUTE DELAY OF THE ORLANDO TO MIAMI ONE SO THEY HAD ME GET ANOTHER TICKET. I AM NOT HAPPY AT ALL BECAUSE IT MADE ME MISS MY CONNECTING FLIGHT FROM TAMPA TO LONDON AND FORCED ME TO MISS A DAY AT MY ROOM IN THE UK.

Wish they didnt delay off-boarding for 10 minutes so i could connect to my flight from miami to tampa

We experienced gate changes and a long delay. My seat was dirty when I boarded and I had to use wipes to clean it myself. There was an unpleasant and overpowering cleaning product scent on the plane as well that lingered through the flight.

Seats were much more cramped then on the 737. Narrower and rows closer together. Flight was absolutely packed and the plugs under the seats didn't work. Was forced to check my bag even though previous flight had no issue with it.

It was fine. My connection in Charlotte to go to WPB was too late and I had to spend the night in the Charlotte Airport in the mini suites.

The flight was on time and arrived early. The crew were friendly and helpful.

My carry on baggage was damaged. Entire trip, I had to carry the baggage. When complained to the boarding crew, they got mad at me and still asked me to valet check in the cabin baggage. Rude boarding crew!!!

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

I liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

Crew was great. No entertainment and food and beverage was for purchase only, even water

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

Everything you need to know for your flight from Idaho Falls to the United States

Information on your arrival and departure airports