$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 6/8. 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
Newark1 stop$399
Los Angeles
Los Angeles1 stop$211
Las Vegas
Las Vegasnonstop$70
Chicago
Chicagononstop$271
San Francisco
San Francisco1 stop$241
Miami
Miami1 stop$355
Boston
Boston1 stop$396
Fort Lauderdale
Fort Lauderdale1 stop$374
Denver
Denver1 stop$239
Seattle
Seattle1 stop$272
Atlanta
Atlanta1 stop$349
Dallas
Dallasnonstop$355
Tampa
Tampa1 stop$349
Houston
Houston1 stop$315
San Diego
San Diego1 stop$178
Honolulu
Honolulu1 stop$495
Philadelphia
Philadelphia1 stop$349
New York
Newark1 stop$399
Los Angeles
Los Angeles1 stop$211
Las Vegas
Las Vegasnonstop$70
Chicago
Chicagononstop$271
San Francisco
San Francisco1 stop$241
Miami
Miami1 stop$355
Boston
Boston1 stop$396
Fort Lauderdale
Fort Lauderdale1 stop$374
Denver
Denver1 stop$239
Seattle
Seattle1 stop$272
Atlanta
Atlanta1 stop$349
Dallas
Dallasnonstop$355
Tampa
Tampa1 stop$349
Houston
Houston1 stop$315
San Diego
San Diego1 stop$178
Honolulu
Honolulu1 stop$495
Philadelphia
Philadelphia1 stop$349

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

Mo, Jul 27 - Fr, Aug 7
Allegiant Air Logo
10:47 pm - 11:30 pm
IDA
-
LAS
1h 43mnonstop
Allegiant Air Logo
1:17 pm - 4:05 pm
LAS
-
IDA
1h 48mnonstop
$70Allegiant Air
Fr, Jul 10 - Fr, Jul 31
Allegiant Air Logo
3:50 pm - 4:26 pm
IDA
-
PDX
1h 36mnonstop
Allegiant Air Logo
12:20 pm - 3:00 pm
PDX
-
IDA
1h 40mnonstop
$73Allegiant Air
Mo, Nov 2 - Di, Nov 3
Delta Logo
6:45 pm - 11:53 pm
IDA
-
LAX
6h 08m
1 stop
Delta Logo
5:55 am - 12:27 pm
LAX
-
IDA
5h 32m
1 stop
$256Delta
Mi, Jul 1 - So, Jul 5
Delta Logo
7:00 pm - 11:46 pm
IDA
-
LAX
5h 46m
1 stop
Delta Logo
5:05 pm - 10:31 pm
LAX
-
IDA
4h 26m
1 stop
$261Delta
Fr, Nov 13 - Mi, Nov 18
United Airlines Logo
5:57 pm - 7:40 pm
IDA
-
DEN
1h 43mnonstop
United Airlines Logo
11:50 am - 1:35 pm
DEN
-
IDA
1h 45mnonstop
$263United Airlines
Sa, Jun 13 - So, Jun 14
United Airlines Logo
10:35 am - 12:28 pm
IDA
-
DEN
1h 53mnonstop
United Airlines Logo
8:05 am - 9:50 am
DEN
-
IDA
1h 45mnonstop
$278United Airlines
Sa, Jun 6 - Mo, Jun 8
Alaska Airlines Logo
6:00 am - 7:03 am
IDA
-
SEA
2h 03mnonstop
Alaska Airlines Logo
12:35 pm - 3:26 pm
SEA
-
IDA
1h 51mnonstop
$287Alaska Airlines
Sa, Jun 6 - Mo, Jun 8
Alaska Airlines Logo
6:00 am - 7:03 am
IDA
-
SEA
2h 03mnonstop
Alaska Airlines Logo
7:05 am - 1:17 pm
SEA
-
IDA
5h 12m
1 stop
$302Alaska Airlines
Mi, Aug 5 - Mi, Aug 12
American Airlines Logo
7:00 am - 10:56 am
IDA
-
DFW
2h 56mnonstop
American Airlines Logo
11:36 am - 1:42 pm
DFW
-
IDA
3h 06mnonstop
$355American Airlines
Mo, Okt 19 - Sa, Okt 24
American Airlines Logo
1:43 pm - 10:28 pm
IDA
-
MCO
6h 45m
1 stop
American Airlines Logo
7:04 am - 12:20 pm
MCO
-
IDA
7h 16m
1 stop
$389American 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 $98 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 $237.

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 $362, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Idaho Falls to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Idaho Falls to the United States, 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 the United States is July, when tickets cost $43 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $964 and $763 respectively.

Good to know

Low seasonApril
Cheapest flight$36
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 8% increase in price.
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 $242 one-way - $397 round-trip; Seattle $204 one-way - $329 round-trip; Salt Lake City $198 one-way - $379 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 12385 reviews
7.8Comfort
7.0Entertainment
8.5Crew
7.0Food
8.1Boarding
Airline reviews

Thank you to everyone, the crew and pilots.. they were so amazing!!

10.0 ExcellentAngel, May 2026
SEA - BOS
Read more Alaska Airlines reviews

Thank you to everyone, the crew and pilots.. they were so amazing!!

The boarding pass had no gate published and there are many fewer large boards with arrivals and departures I almost missed my flight trying to find the gate

Crew was so kind, flight was easy, thank you so much for everything

Everyone was so kind, flight was wonderful, check in and baggage were easy. Thank you guys so much for a great trip

Flight delayed no communication. The gate was changed so many times.

For such a long flight, Tampa to Seattle, was shocked to learn that no food was served. Also, there were no TV monitors to be able to watch a movie.

It departed an hour and a half late because the crew got in late the previous night due to weather related problems. So we got into LA later than anticipated and traffic was much worse.

The staff at the check-in counter was responsive to the long queue and intervened to redirect the traffic: foreigners can't complete check-in without human agents; that is the real line which moves quickly enough. On-boarding and off-boarding were smooth and civilized. Overall the operations were efficient and the experience was pleasant.

Good. I didn’t order food and there was no entertainment available.

Ok, but nothing special. Long flight with no blanket/pillow set.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Late plane. Only one crew on the ground so we b had to wait for Denver flight to come in, board, and depart. At 78 yrs of age I was not pleased trying to get my connection. What really made me angry was the notification you sent me to hurry up or I would miss my connection. Why tell me to hurry up when you got me in late. It was not a good way of treating customers.

No complaints other than luggage carousel was incorrectly guiding passengers to the wrong carousel on the screen.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

No screens or meal options. Freezing cold. Dirty seats. Left late.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Seats were very uncomfortable and being charged for snacks and water.........

Allegiant actually impressed me, original inbound flight from PBG was so late they gave us a bird inbound from Des Moines and only left 1h late and gained 40 minutes back in the air. Comfortable flight with no frills but no complaints.

Flight was delayed. Crew was good but hot coffee was not available.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

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.

The wifi experience is awful. I had to try again and again, taking over 30 minutes, to connect to the wifi. I had to watch the same two ads over and over until I was finally successful. Once connected, it was anything but "high speed" and disconnected at least three times during the flight.

Fine. Nothing to write home about. The plane left on time, and arrived on time.

I was downgraded from first class to coach due to an airplane change. They pulled me out of line and I was the very last person to board the plane stuck in the middle seat with no overhead place to put my carry-.on. Very poor customer service.

Seat comfort was poor (no lumbar or lower back support).

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

We had several flights and they were all on-time and flawless

My Frequent Flyer nber wasn't put on as I was told it was..... This resulted in a last group boarding and no priority tags on My bags.

Terrible steward... Plane was quite empty... I asked to move "back" in the plane and the steward said no... Unnecessary power trip of mediocre people.

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

Information on your arrival and departure airports