$36 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 6/15. 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$349
Los Angeles
Los Angeles1 stop$184
Las Vegas
Las Vegasnonstop$89
Chicago
Chicago2 stops$302
San Francisco
San Francisco1 stop$232
Miami
Miami1 stop$369
Boston
Boston1 stop$369
Fort Lauderdale
Fort Lauderdale1 stop$394
Denver
Denver1 stop$203
Seattle
Seattlenonstop$217
Atlanta
Atlanta1 stop$244
Dallas
Dallas1 stop$285
Tampa
Tampa2 stops$328
Houston
Houston1 stop$306
Honolulu
Honolulu2 stops$484
San Diego
San Diego1 stop$173
Philadelphia
Philadelphia1 stop$359
New York
New York1 stop$349
Los Angeles
Los Angeles1 stop$184
Las Vegas
Las Vegasnonstop$89
Chicago
Chicago2 stops$302
San Francisco
San Francisco1 stop$232
Miami
Miami1 stop$369
Boston
Boston1 stop$369
Fort Lauderdale
Fort Lauderdale1 stop$394
Denver
Denver1 stop$203
Seattle
Seattlenonstop$217
Atlanta
Atlanta1 stop$244
Dallas
Dallas1 stop$285
Tampa
Tampa2 stops$328
Houston
Houston1 stop$306
Honolulu
Honolulu2 stops$484
San Diego
San Diego1 stop$173
Philadelphia
Philadelphia1 stop$359

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

Fri, Jun 19 - Mon, Jun 22
Allegiant Air Logo
10:56 pm - 11:39 pm
IDA
-
LAS
1h 43mnonstop
Allegiant Air Logo
1:22 pm - 4:08 pm
LAS
-
IDA
1h 46mnonstop
$89Allegiant Air
Mon, May 11 - Fri, May 22
Allegiant Air Logo
10:21 pm - 11:02 pm
IDA
-
LAS
1h 41mnonstop
Allegiant Air Logo
10:15 am - 1:00 pm
LAS
-
IDA
1h 45mnonstop
$93Allegiant Air
Mon, May 18 - Fri, May 22
Allegiant Air Logo
10:21 pm - 11:02 pm
IDA
-
LAS
1h 41mnonstop
Allegiant Air Logo
10:15 am - 1:00 pm
LAS
-
IDA
1h 45mnonstop
$97Allegiant Air
Fri, Jun 26 - Mon, Jun 29
Allegiant Air Logo
6:39 pm - 7:18 pm
IDA
-
PDX
1h 39mnonstop
Allegiant Air Logo
3:09 pm - 5:49 pm
PDX
-
IDA
1h 40mnonstop
$100Allegiant Air
Thu, May 14 - Sun, May 17
Alaska Airlines Logo
1:54 pm - 2:56 pm
IDA
-
SEA
2h 02mnonstop
Alaska Airlines Logo
8:00 pm - 10:53 pm
SEA
-
IDA
1h 53mnonstop
$217Alaska Airlines
Sat, Apr 25 - Sat, May 2
Alaska Airlines Logo
4:06 pm - 5:00 pm
IDA
-
SEA
1h 54mnonstop
Alaska Airlines Logo
7:54 pm - 10:40 pm
SEA
-
IDA
1h 46mnonstop
$237Alaska Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
2:20 pm - 10:27 pm
IDA
-
BNA
7h 07m
1 stop
American Airlines Logo
7:00 am - 1:44 pm
BNA
-
IDA
7h 44m
1 stop
$329American Airlines
Wed, Sep 16 - Tue, Sep 22
American Airlines Logo
1:44 pm - 8:10 pm
IDA
-
BNA
5h 26m
1 stop
American Airlines Logo
6:00 am - 11:32 am
BNA
-
IDA
6h 32m
1 stop
$349American Airlines
Sat, Sep 5 - Mon, Sep 14
United Airlines Logo
2:30 pm - 11:25 pm
IDA
-
MCO
6h 55m
1 stop
United Airlines Logo
8:00 am - 1:24 pm
MCO
-
IDA
7h 24m
1 stop
$369United Airlines
Wed, Apr 22 - Sun, Apr 26
Delta Logo
6:58 pm - 9:58 am
IDA
-
HOU
14h 00m
2 stops
Delta Logo
6:00 am - 10:40 pm
HOU
-
IDA
17h 40m
2 stops
$543Delta
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 $110 round-trip. The most popular route is from Idaho Falls (IDA) to Seattle (SEA), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $252.

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 $366, prices are generally cheapest when you fly direct.

Good to know

Low seasonJuly
Cheapest flight$36
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Idaho Falls to Portland

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 $254 one-way - $383 round-trip; Seattle $247 one-way - $379 round-trip; Salt Lake City $215 one-way - $363 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.
7.9
Alaska AirlinesOverall score based on 12133 reviews
7.8Comfort
8.5Crew
7.0Entertainment
8.1Boarding
7.0Food
Airline reviews

The ground crew was very good. They communicated clearly and continued updating. The flight crew was fine. The flight crew on the March 20th flight from MCI to Portland was excellent.

8.0 ExcellentJ, Mar 2026
PDX - MCI
Read more Alaska Airlines reviews

The ground crew was very good. They communicated clearly and continued updating. The flight crew was fine. The flight crew on the March 20th flight from MCI to Portland was excellent.

The ticketing counter in SD was a mess. The lady handling the First-Class check-in seemed overwhelmed until a supervisor replaced her. It took almost 20 minutes to get once couple checked in, and then she started walking around the counters while 7 people just stood in line. Once her supervisor arrived, she announced she was going on break, never to engage with customers again.

WOuld have liked coffee or pretzels but other than that, crew and pilot and flight were great. Seat was great, too.

No outlets, plugs, way to charge the phone or service and no food on one leg o the trip, but other than that, great. Loved WIFI, the flight, the crew, the pilots, the schedule, etc. Great job. My new favorite airline!

On time, friendly and professional staff and crew Very nice new terminal in Spokane

It was a bumpy flight but the crew was very attentive and made it a safe and enjoyable experience.

My suggestion is that they should provide USB-C charging ports for modern cell phones.

Very easy, stress free airline. Was a wonderful experience. Will use again

Alaska drastically changed our flight from a direct flight to a flight with connection and a long layover. So we canceled the Alaska flight and we learned a valuable lesson that we will never book through kayak again because the third party travel agent tried to withhold our money.

Overall, we had a very good experience with Alaska Airlines on our flight from Honolulu to Seattle. The First Class cabin was comfortable, boarding was smooth, and the crew was friendly and attentive. The meal service was solid and the overall flight felt well organized. One thing that stood out negatively was the drink service. I was in First Class and, while quietly watching movies and not causing any issues, I was cut off after four drinks. I understand safety policies, but the cutoff felt a bit premature given the context.

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

Too many people are taking up space in the overhead bins with their extra piece of luggage. Since they cannot fit their backpacks or extra luggage piece under the seat in front of them, they store it in the overheads and thus taking up room for other passengers. It wasn’t only one or two persons; more like 12 or 13 passengers.

This was the worse experience. They delayed our flight twice and we still had to find another flight to get home sooner which was alos delayed. Also, the flight attendant named Ginny on DL9890 leaving at 4:13pm on 3/23/26 was extremely rude.

I love Delta the flight attendants were personable and the flight arrived 1/2 earlier thanks expected. All a plus. The gate agent was a bit flustered but even with that I still had a good experience. Her supervisor assisted me.

Got to fly my favorite plane, the Boeing 767-400ER, to Milan. The soft blush pink mood lighting during meal service was very beautiful and gorgeous. The service was top-notch, and our flights were on time. I highly recommend Delta.

I am still at the Airport! Delayed Delayed and Delyaed

I took seat 15A in anticipation of window seat, there is no window.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

They promise free wi-fi prior to boarding and then once on board you are informed you have to purchase wifi even after being a mileagePlus member.

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

Awful. No counter attendants. No dinner offered due to delays.

Horrible service no Wi-Fi connection on both leg of the flight and they are refusing to fix bad service

3 hour delay…. Nearly 2 hours sitting on tarmac. Do better, United. Or at least have the sense to not say “we hope you enjoyed your flight with us” upon disembarking.

Flights were on time. Free Wifi on plane. Everything was well organized.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

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.

The flight changed gates multiple times and flight had to be delayed multiple times

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

My flight from LGA was cancelled and my rebooked flight from JFK was delayed numerous times. I will now be getting home after 2am.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

The flight attendant in business class was excellent! Professional, friendly and attentive.

Delays with no explanation. It could have been handled better.

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

Information on your arrival and departure airports