$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 9/12. 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

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Best United States Flight Deals from Idaho Falls

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New York1 stop$335
Los Angeles
Los Angeles1 stop$181
Las Vegas
Las Vegasnonstop$68
Miami
Miami1 stop$251
Chicago
Chicago1 stop$267
San Francisco
San Francisco1 stop$240
Boston
Boston3 stops$388
Washington, D.C.
Baltimore2 stops$328
Denver
Denvernonstop$88
Seattle
Seattlenonstop$172
Fort Lauderdale
Fort Lauderdale1 stop$298
Atlanta
Atlanta2 stops$345
Dallas
Dallas1 stop$290
Tampa
Tampa1 stop$384
Houston
Houston1 stop$325
Honolulu
Honolulu1 stop$517
San Diego
San Diego1 stop$162
Philadelphia
Philadelphia2 stops$348
New York
New York1 stop$335
Los Angeles
Los Angeles1 stop$181
Las Vegas
Las Vegasnonstop$68
Miami
Miami1 stop$251
Chicago
Chicago1 stop$267
San Francisco
San Francisco1 stop$240
Boston
Boston3 stops$388
Washington, D.C.
Baltimore2 stops$328
Denver
Denvernonstop$88
Seattle
Seattlenonstop$172
Fort Lauderdale
Fort Lauderdale1 stop$298
Atlanta
Atlanta2 stops$345
Dallas
Dallas1 stop$290
Tampa
Tampa1 stop$384
Houston
Houston1 stop$325
Honolulu
Honolulu1 stop$517
San Diego
San Diego1 stop$162
Philadelphia
Philadelphia2 stops$348

Cheap Flights from Idaho Falls to the United States

 
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

Sun, Jul 27 - Thu, Jul 31
Allegiant Air Logo
5:49 pm - 7:37 pmIDA-DEN
1h 48mnonstop
Allegiant Air Logo
3:20 pm - 5:04 pmDEN-IDA
1h 44mnonstop
$95Allegiant Air
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Wed, Jul 2 - Fri, Jul 4
Allegiant Air Logo
4:58 pm - 5:40 pmIDA-LAS
1h 42mnonstop
Allegiant Air Logo
8:56 am - 11:44 amLAS-IDA
1h 48mnonstop
$96Allegiant Air
Find Deal
Sat, Sep 6 - Sat, Sep 6
Alaska Airlines Logo
3:57 pm - 4:53 pmIDA-SEA
1h 56mnonstop
Alaska Airlines Logo
7:55 pm - 10:39 pmSEA-IDA
1h 44mnonstop
$172Alaska Airlines
Find Deal
Tue, Aug 19 - Tue, Aug 26
Alaska Airlines Logo
4:03 pm - 5:00 pmIDA-SEA
1h 57mnonstop
Alaska Airlines Logo
12:34 pm - 3:20 pmSEA-IDA
1h 46mnonstop
$197Alaska Airlines
Find Deal
Wed, Jul 30 - Tue, Aug 5
Delta Logo
6:52 pm - 10:11 pmIDA-DEN
3h 19m1 stop
Delta Logo
7:10 am - 10:34 amDEN-IDA
3h 24m1 stop
$209Delta
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Thu, Jul 3 - Mon, Jul 7
Delta Logo
6:00 am - 9:23 amIDA-DEN
3h 23m1 stop
Delta Logo
6:10 pm - 10:29 pmDEN-IDA
4h 19m1 stop
$214Delta
Find Deal
Wed, Nov 5 - Thu, Nov 13
United Airlines Logo
5:00 am - 6:57 amIDA-DEN
1h 57mnonstop
United Airlines Logo
8:01 am - 9:48 amDEN-IDA
1h 47mnonstop
$249United Airlines
Find Deal
Fri, Aug 29 - Sun, Aug 31
United Airlines Logo
4:15 pm - 6:03 pmIDA-DEN
1h 48mnonstop
United Airlines Logo
9:05 pm - 10:48 pmDEN-IDA
1h 43mnonstop
$254United Airlines
Find Deal
Thu, Sep 11 - Sun, Sep 14
American Airlines Logo
12:43 pm - 10:31 pmIDA-MSP
8h 48m1 stop
American Airlines Logo
6:26 am - 12:09 pmMSP-IDA
6h 43m1 stop
$331American Airlines
Find Deal
Tue, Aug 12 - Tue, Aug 26
American Airlines Logo
12:46 pm - 9:28 pmIDA-LGA
6h 42m1 stop
American Airlines Logo
2:58 pm - 9:18 pmLGA-IDA
8h 20m1 stop
$335American Airlines
Find Deal
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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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Idaho Falls to the United States.

The cheapest ticket to the United States from Idaho Falls found in the last 72 hours was to Las Vegas, at $54 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 $213.

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 $511, prices are generally cheapest when you fly direct.

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

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

When flying from Idaho Falls to United States, you should consider leaving on a Monday and avoid Tuesdays if you are looking for the best rates. For your return to Idaho Falls, you’ll find the best rates on Thursdays and the most expensive ones on Mondays.


Good to know

Low seasonSeptember
High seasonJune
Cheapest flight$54
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 8% increase in price.
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.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally at night, when round-trip flights cost $565 on average. The most expensive time of day to fly to the United States is generally in the morning, which is peak travel time and where the average cost of a ticket is $585.

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 $213 one-way - $410 round-trip; Seattle $184 one-way - $270 round-trip; Salt Lake City $178 one-way - $307 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 10000 reviews
7.8Comfort
7.1Entertainment
8.1Boarding
8.5Crew
7.1Food
Airline reviews

Food was just ok..had snack box :( Crew was very nice

8.0 ExcellentAnonymous, Jun 2025SEA - MKE
Read more Alaska Airlines reviews

Food was just ok..had snack box :( Crew was very nice

The Alaska app and website were not fully operational. I had to spend about 15 minutes at the counter doing things that should have been completed online. The agent was very nice and helpful, however.

Could have service kiosks, had to find a gate with an attendant

Flying on Hawaiian Airlines was good. But, getting a boarding pass was a hassle. I booked what I thought was an Alaska Airlines flight that was actually a Hawaiian Airlines flight. I couldn't check in online. I had to wait for the Hawaiian Airlines counter to open so I could get my boarding pass which was a requirement for me to get in The Club or the Centurion Lounge. (I had no check in luggage so I didn't expect to have to physically check in.) The Alaska Airlines staff blamed the FAA for the problem.

Passengers were not informed timely of delays. The staff appeared like they didn't really care about the passengers.

Food and entertainment aren’t a thing on these regional flights. But it was a smooth flight. Could see gorgeous countryside through the large windows. The earplugs are a nice touch for the prop engines but the hum of the engines did not bother me. Grateful the option exists to easily get from A to B.

Both flights were delayed going to our destination and leaving, and communication about the delays was not great by the airlines, now the crews were phenomenal and great to be around!!

Both flights were delayed due to an incident at SEA. The problem really rests with inadequate customer & plane facilities for Skywest at SEA. You feel like you are in a cattle enclosure. And planes were sitting on taxiways waiting for parking so every plane was late. SEA appears to be over capacity. It is not a fun passenger experience waiting. But crews and flights were all fine. Alaska needs to step up.

Really good except my daughter's tv broke during the flight so she could watch tv

Staff are helpful and patient. I don’t appreciate the almost 5 hours delay and also the delay of our luggage and being switched from one carousel to another to pick them up.

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Tight! Seats are not designed for those of us who wear extra-large clothes.

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

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.

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

Cramped seats. FAA should make airlines have more legroom, for even short people complain

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

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