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Everything you should know

Cheapest round-trip
$81
Typical prices: $380-$668
Allegiant Air
Tue 11/13Fri 11/16
LAS - IDA • Non-stop
Cheapest one-way
$69
Typical prices: $216-$398
Allegiant Air
Thu 1/25
LAS - IDA • Non-stop
Nonstop flights
You can fly direct with United Airlines, American Airlines and others. Average duration is 1h 58m.
FAQs
FAQs
Top airlines
Most flights • 28 per week
Best reviews • 7.9 score
Airline reviews
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Airline reviews
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Top routes
Cheapest • 65% average savings
Most popular
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
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Good to know
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We hope you love your trip to Idaho Falls!
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Expert advice
Flight Deals

Cheap Flights to Idaho Falls

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals to Idaho Falls

Fri, Nov 13 - Mon, Nov 16
Allegiant Air Logo
10:41 am - 1:30 pmLAS  Las Vegas Harry Reid Intl-IDA Idaho Falls Fanning Field
1h 49mnonstop
Allegiant Air Logo
7:47 pm - 8:32 pmIDA  Idaho Falls Fanning Field-LAS Las Vegas Harry Reid Intl
1h 45mnonstop
$81Allegiant Air
Fri, Nov 13 - Mon, Nov 16
Allegiant Air Logo
10:41 am - 1:30 pmLAS  Las Vegas Harry Reid Intl-IDA Idaho Falls Fanning Field
1h 49mnonstop
Allegiant Air Logo
7:47 pm - 8:32 pmIDA  Idaho Falls Fanning Field-LAS Las Vegas Harry Reid Intl
1h 45mnonstop
$85Allegiant Air
Thu, Dec 10 - Mon, Dec 14
Multiple Airlines Logo
12:24 pm - 3:15 pmLAS  Las Vegas Harry Reid Intl-IDA Idaho Falls Fanning Field
1h 51mnonstop
Multiple Airlines Logo
1:41 pm - 8:45 amIDA  Idaho Falls Fanning Field-LAS Las Vegas Harry Reid Intl
20h 04m1 stop Santa Ana J. Wayne/Orange Cnty
$187Multiple Airlines
Fri, Dec 4 - Mon, Dec 7
Multiple Airlines Logo
10:00 am - 12:51 pmLAS  Las Vegas Harry Reid Intl-IDA Idaho Falls Fanning Field
1h 51mnonstop
Multiple Airlines Logo
1:41 pm - 8:45 amIDA  Idaho Falls Fanning Field-LAS Las Vegas Harry Reid Intl
20h 04m1 stop Santa Ana J. Wayne/Orange Cnty
$201Multiple Airlines
Wed, Dec 9 - Mon, Dec 14
Alaska Airlines Logo
10:30 am - 1:17 pmPDX  Portland-IDA Idaho Falls Fanning Field
1h 47mnonstop
Alaska Airlines Logo
3:44 pm - 4:48 pmIDA  Idaho Falls Fanning Field-PDX Portland
2h 04mnonstop
$252Alaska Airlines
Fri, Dec 4 - Mon, Dec 7
Alaska Airlines Logo
10:30 am - 1:17 pmPDX  Portland-IDA Idaho Falls Fanning Field
1h 47mnonstop
Alaska Airlines Logo
3:44 pm - 4:48 pmIDA  Idaho Falls Fanning Field-PDX Portland
2h 04mnonstop
$257Alaska Airlines
Tue, Dec 22 - Sun, Dec 27
United Airlines Logo
11:45 am - 1:28 pmDEN  Denver Intl-IDA Idaho Falls Fanning Field
1h 43mnonstop
United Airlines Logo
2:37 pm - 4:20 pmIDA  Idaho Falls Fanning Field-DEN Denver Intl
1h 43mnonstop
$319United Airlines
Thu, Nov 26 - Sat, Nov 28
United Airlines Logo
8:00 am - 9:53 amDEN  Denver Intl-IDA Idaho Falls Fanning Field
1h 53mnonstop
United Airlines Logo
9:40 pm - 11:30 pmIDA  Idaho Falls Fanning Field-DEN Denver Intl
1h 50mnonstop
$319United Airlines
Tue, Jan 12 - Tue, Jan 19
Delta Logo
5:35 am - 12:24 pmSEA  Seattle/Tacoma Intl-IDA Idaho Falls Fanning Field
5h 49m1 stop Salt Lake City
Delta Logo
6:59 pm - 12:23 amIDA  Idaho Falls Fanning Field-SEA Seattle/Tacoma Intl
6h 24m1 stop Salt Lake City
$337Delta
Wed, Dec 9 - Mon, Dec 14
Delta Logo
5:45 am - 12:17 pmPDX  Portland-IDA Idaho Falls Fanning Field
5h 32m1 stop Salt Lake City
Delta Logo
6:59 pm - 11:59 pmIDA  Idaho Falls Fanning Field-PDX Portland
6h 00m1 stop Salt Lake City
$338Delta
Booking Insights

Price, demand and travel trends for flights to Idaho Falls

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What is the cheapest flight to Idaho Falls?

Las Vegas to Idaho Falls is the cheapest route at $81 round-trip, found in the past 5 days on KAYAK. Denver to Idaho Falls is the most popular connection with round-trip deals from $319.

How much is a flight to Idaho Falls?

On average, a round-trip flight from the United States to Idaho Falls costs $505, based on KAYAK data over the past 12 months. Round-trip fares from Las Vegas average $153, while Portland runs a bit higher at $269.

What is the cheapest day to fly to Idaho Falls?

Friday is the cheapest day to fly to Idaho Falls at $479 round-trip on average over the past 12 months on KAYAK. Sunday is the most expensive at $579.

What’s the cheapest month to fly to Idaho Falls?

•November is the cheapest month to fly to Idaho Falls with an average price of $448 round-trip.
•June ($543) and July ($542) are the most expensive.

Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Idaho Falls?

Night flights to Idaho Falls are the cheapest at $410 round-trip on average. Morning flights are the most expensive at $531.

What is a good deal for flights to Idaho Falls?

Flights under $380 are considered a good deal. 25% of KAYAK users found round-trip flights to Idaho Falls at or below these prices, with the lowest fares from:
•Las Vegas $106
•Portland $159
•Phoenix $203.

Expert advice

Expert advice for your flight to Idaho Falls

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines and Alaska Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Daniel Scheffler

Daniel Scheffler

Expert on Allegiant Air

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Key details for flights to Idaho Falls

Low season

February

Cheapest flight

$69
Beat the crowds with an average 43% drop in travelers.
The most popular month to fly with an average 58% increase in travelers.
One-way flight from Las Vegas to Idaho Falls

When to book flights to Idaho Falls

Are your dates flexible? Find out the best times to travel 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

Your questions about flights to Idaho Falls, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • How do I know if a flight to Idaho Falls is a good deal?

    A good deal on a flight to Idaho Falls is around $380 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • How long are nonstop flights to Idaho Falls from different departure cities?

    Nonstop flight time to Idaho Falls varies depending on your departure city:

    • From Portland: 1h 45m
    • From Seattle: 1h 46m
    • From Santa Ana: 2h 06m
    • From Dallas: 3h 13m
    • From Chicago: 3h 50m

  • What is the difference between the most popular and the most frequent airline at Idaho Falls?

    United Airlines operates the most flights from the United States to Idaho Falls at 28 per week, and for this route United Airlines is also the airline most often selected by KAYAK users searching for flights from the United States to Idaho Falls. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.

  • Which airlines should I consider for flights to Idaho Falls?

  • How many flights serve Idaho Falls?

    Idaho Falls receives 14 flights per day and 100 per week from across the world. Denver has the most flights to Idaho Falls, with 28 weekly flights.

  • Is it possible to rent a car at this airport and if so, where will I find the rental car companies when I land?

    What you might find surprising about this small regional airport is that there are six national rental car chains that offer service at the airport. All of the rental car agencies have customer service counters in the terminal building near the baggage claim area and all the cars for rent sit on-site in the parking lot adjacent to the terminal building.

  • Does this airport offer any public bus or train options that are available from the airport to the center of Idaho Falls?

    While the city of Idaho Falls does not have a public transportation system to speak of there are shuttle bus services that will take you from the airport to the center of town in around 5min. The fare to ride on these buses is around $20.

  • Can you get a taxi from Idaho Falls Fanning Field to Idaho Falls?

    There is generally plenty of taxi service available from a local Idaho Falls taxi company to take you from the airport into the center of town. The journey will generally take about 9min and you can expect to pay a taxi fare of around $25.

  • Are there any rideshare services that have an operation at Idaho Falls Fanning Field?

    Travelers to this airport will be happy to learn that both of the major rideshare companies have an operation at this airport. Because this is a smaller regional airport there are no specific pickup locations for rideshare vehicles. Your best choice when booking a vehicle like this is to collect all your baggage then head outside the terminal and set your pick up location for your ride.

  • What are the top domestic destinations served by Idaho Falls Regional Airport?

    The most common domestic destination to and from Idaho Falls Airport is to and from Salt Lake City in Utah by Delta Airline. Other domestic destinations include Denver by United Airlines, Dallas-Fort Worth and Phoenix-Sky Harbor by American Airlines, Seattle and Boise by Alaska, and Phoenix-Mesa, Las Vegas, Portland, and Santa Ana by Allegiant Air.

  • What accessibility services does Idaho Falls Regional Airport offer?

    All the entry and exit doorways of IDA have oversized doors for passenger access using wheelchairs. The airport has an elevator in the southern vestibule past security for access to all the floors within the airport. Airlines flying in and out of IDA provide wheelchairs to passengers needing them and luggage assistance services. IDA has at least one stall equipped for passengers with special needs in all the airport restrooms.

  • Is Idaho Falls Regional Airport an airline hub?

    IDA is the hub for United Airlines. The airline has one terminal, the Idaho Falls Regional Airport Terminal, with over ten customer service counters. Frequent United Airlines flyers become MileagePlus Premier members, which benefits them by granting access to upgrades on select flights by the airline. You can also conveniently connect to other cities within the State from Idaho Falls Airport through the airline.

  • What are the eco-friendly practices of Idaho Falls Regional Airport?

    IDA uses energy-efficient lighting, including LED and natural lighting, to minimize energy consumption. The airport also uses proper waste management systems to implement a recycling program that reduces landfill waste within the airport. IDA partakes in environmental programs, including community tree planting. The airport conserves water through low-flow toilets and faucets. Idaho Falls Airport also has eco-friendly materials for its buildings.

Your guide to booking Idaho Falls flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to Idaho Falls, a good round-trip fare is around $380. If you find a fare below that, you're getting a strong deal.
  • If your travel dates are flexible, consider flying to Idaho Falls in November. Round-trip fares historically average $448, making November the cheapest month to travel based on KAYAK data from the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat-selection costs on budget carriers.
    • Verify whether you need any travel documents beyond ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to evening to save up to $121 per round-trip. Evening flights to Idaho Falls average $410 compared to $531 for morning flights.
  • Bag allowances vary by airline, fare type, cabin class and route. On flights to Idaho Falls, some airlines may include bags at no extra cost. For example, Alaska Airlines includes a cabin bag and a checked bag in Economy Class, United Airlines includes a cabin bag and a checked bag in Economy Class and American Airlines includes a cabin bag and a checked bag in Economy Class. Always check the fare details before booking, since bag policies can change by ticket type.
  • If you have someone coming to pick you up at Idaho Falls Fanning Field (IDA) you should let them know that they can park in any of the airport's parking lots for up to 30min free of charge to meet you after your flight.
  • If you have just landed in Idaho Falls and realize you don't have any cash on hand you will find an ATM in the airport lobby quite close to the restaurant.
  • One of the great things about this airport is that they take travelers’ needs into consideration. As such there are a number of electronic charging stations that you will find throughout the terminal building to charge up any electronic devices you have that are low on battery.
  • If you are someone who travels with a pet or an assistance animal, you will find that this airport has two different pet relief areas. One of them is just outside of the check-in area and there is a second one that is has a location outside of the baggage claim area.
  • One reason that many travelers visit Idaho Falls Fanning Field is the fact that the airport has such close proximity to so many outdoor wonders. This includes relatively short trips from the airport to places like Grand Teton National Park, Jackson Hole, Wyoming, Yellowstone National Park, and Sun Valley, Idaho.
  • Idaho Falls Regional Airport (IDA) is the domestic airport serving Idaho Falls and the only airport in the city. The airport also serves nearby cities without airports, including Ammon and Rexburg.
  • Unaccompanied minors between 5 to 12 years old flying into Idaho Falls Airport must have an adult pick them up at the airport with necessary identification documents.

Reviews of the top 5 airlines flying to Idaho Falls

 
Need help choosing which airline to fly with 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 verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 13135 reviews
7.0Food
7.0Entertainment
8.1Boarding
8.5Crew
7.8Comfort
Airline reviews

It's no surprise that bigger overhead space would be nice, but they are super convenient and helpful with the baggage claim stuff.

8.0 ExcellentGriffin, Oct 2026
Read more Alaska Airlines reviews

It's no surprise that bigger overhead space would be nice, but they are super convenient and helpful with the baggage claim stuff.

My bag was gate checked in Seattle and I was told it would be at the end of the walkway when I arrived in Idaho. It was not and I had to get it from baggage claim. Southwest Airlines will gate check a bag even if they have room for it in the cabin. I like that a lot. Seattle Airport is not that easy to maneuver. Indianapolis is one of the easiest airports to navigate.

Uneventful, which is perfection in airline travel. Everything happened as it should and when it should. Flight was short so no food. I could have used the App to watch something but took a nap.

Stop with the fake cheerfulness and the too often expressed sentiment that all you care about is our safety. Bull…. You use that as an excuse to keep us cowering in our seats. How about you go back to the old standby of telling the truth… like why you overbook, why you are delayed, why we don’t get vouchers for your screwups.

Healthier snack options in first class. Offer fruits, proteins, etc

Last minute change in gate to satellite N a bit of a hassle since I needed a wheelchair . Someone did come and get me to the gate but it was close. Then plane late. It’s hard on older passengers and families to have to trek from one gate to another.

Still seems like Alaska Airlines is not doing a very good job of anticipating the number of carry on’s going in the overhead bins. I was asked to check mine not to find out there was actually(surprisingly)enough room for my small luggage in the overhead bins. In the past, I’ve seen PLENTY of items in the overhead bins that should be underneath peoples seats.

It seems like most of the time theres no room for my allowed carry on bag. People are putting their things in the overhead compartment that belong under the seat in front of them. Getting tired of that!

The crew was great and everything went smoothly coming and going.

Nobody’s fault but turbulence all the way meant no service and no access to the bathroom,

Love Delta. I'll take connections to stay on Delta even if another airline has a direct flight.

The main issue was the quantity of the drink. The hostess gave only half cup full of the soft drink. I was thirsty and was expecting full glass like every other time.

Delta always provides stellar service. I am always impressed and will try my best to travel via Delta if I can afford it.

This flight was the flight we missed due to deltas delay at our first airport going TO Atlanta.

Wi-fi was out for the whole flight. I pay a premium to fly Delta because it has wifi and because it was out I didn’t get to work on anything I wanted to. I’ll have to make it up later this week by spending less time with my family.

I enjoyed the whole flight and the crew was amazing i dont usually fly delta

Very nice the whole crew was amazing and very professional. I had an offer for a drink it was handled great and amazing crew and nice flight.

I just wish the boarding process/time to take off after boarding was quicker and more efficient. I also wish that the overhead luggage was managed better. almost every time i fly there is no space for carry ons and they are either checked or I end up having to store it several rows back from my seat. Delta should not offer carryons for all customers if there is not actually space for everyone

I missed the flight because the Minneapolis flight was 49 minutes LATE, and the Boise flight LEFT 24 minutes EARLY!

Having to up charge for a seat assignment is not good. Delta can do better

I need to note that this flight experience was generally fine but the boarding situation was absolutely a mess and there wasn’t any actual priority boarding. I rated the experience poorly because I’m am genuinely so frustrated with the crew on United taking the baggage space in first class. This flight it didn’t happen, but the last few flights (when I ironically don’t get an opportunity to provide feedback) have been spoiled because upon entering the first class cabin as one of the first few seated passengers, the overhead bins are full and ‘crew’’ tags are on the bags of those taking space. I don’t intend to infer some sort of a class or caste system but it’s absolutely ridiculous that the crew takes the overhead storage above and beyond their most loyal and lucrative customers. They should not even have economy space IMO. And I’ve gotten grief when I’ve noted to the crew the ridiculousness of the notion that the crew (who are the last off the plane) should have priority over flyers who pay. I hope you find a way to convey this message to United because it’s happening with increasing frequency and I intend to find a way to expose the specific crew members who are doing this on a flight by flight basis. (And I have a day job)

Great flight and crew. Need more legroom and DO NOT allow seats to recline.

Flight and crew were great. Need more legroom and do not allow seats to recline.

Bathrooms broken, Wifi not working, Direct TV stuck in a United credit card loop for whole flight

We arrived to Chicago nearly 30 minutes early, which was great, but then was on the ground for over an hour because the gate was not available. The issue I had was the pilot estimation was frustrating. First he said he was informed it would be 20 minutes but he said "it will probably be more like 10 minutes". After 30 minutes he came back on the comm and said it would be another 10 minutes, maybe 20. I understand he was only giving estimates but he also layered in his own gut feel. We were never told why we didn't have a gate even after our scheduled entry.

Just sat on the run way after we arrived early

New Max 10, first class seats have been shrunk. End of a 20 hour journey, it was United not Lufthansa, just glad to get home

Worst boarding experience, flight extremely delayed causing super tight connect and deplaning was a disaster as ppl were pushing and shoving to get off. Then after flying over 8 hours had to get off a job to next flight. Limited beverage service in Business class (water or white wine) no food. The plane was very cold (temperature) so uncomfortable

Stored my cloth purse under seat in front off me as instructed. When I retrieved it, half of it was soaked, along with everything inside it. I don’t really know how that could have been prevented because the area did not look wet, but I was not happy about it.

Seats needs to be wirer and food is very poor

Terrible. We needed to change return flights due to an incoming hurricane. They would not refund our return flight.

The employees at Sioux Falls airport were friendly and helpful. As a veteran/retired military Allegiant allows two checked bags, one carry on bag and a seat on the plane all at no cost. The flight crew and pilots were friendly and very competent.

The check-in and flight crew employees are excellent. The flight was good and the seats were adequate.

The flights to and from Cincinnati were great at being on time for both, departures and arrivals. The planes could use some updating.

It was a dismal experience. The flight was delayed for 4 hours, and we spent hours in the plane, without air, during the summer. We were not provided with water, and the medical assistance was inadequate when it arose.

The landing the pilot was very smooth. The flight attendant was kind of rude.The boarding the plane in punta Gorda was not great made us wait out in the heat 😞

My exit seat was very comfortable Coffee was to be purchased but sodas free 😏

It was poor a four hour delay and no explanation for the delay. What’s a 35 dollars going to do. It also made me miss my car rental,

It was on time. Flight was comfortable. Staff was nice. It was the way a flight should always be.

The price was the only good thing about this flight. It was scary during takeoff when the plane tilted side to side. It made me feel very nervous as I have never had a take-off that unsmooth. There was no on-flight movie or music options and the only complimentary option was water. Other airlines offer trail mix or a caramel cookie and pop options as complimentary. This flight was a 2.5 hour flight. I understand for shorter flights not having options, but a flight 2 hours or longer should offer more complimentary options and in flight entertainment. Also the seats did not recline and for a longer flight reclining seats are a must for comfort.

Cabin staff were very disengaged, spoke with no eye contact, dismissive. Disappointing compared to my United experiences.

awful delay, awful communication, zero updates throughout the experience of a giant delay

It was decent, there was no WiFi on the flight but the FA’s gave everyone a warning once we boarded the plane. Unfortunately it didn't give me enough time to download my entertainment content.

On Time. AA is late due to maintenance all the time.

Seats were very tight for a 17 hour flight. Baby cried for 15 out of 17 hours.

Flight attendant super rude demanding I remove my carry on baggage from overhead and place under seat. I stated I am an ADA passenger and need the leg room as the seats are very tight. That’s why I boarded early for the extra time to get situated. She said, we need the space. I replied “How can that be as only a few passengers have boarded so far? I am executive platinum status so I understand the rules and you are discriminating against ADA federal law. Please stop”. Her answer… then you should find another flight! Not ok. Addressed with senior flight attendant. So unprofessional and discriminatory.

Perfect from check in at the airport to the flight all staff were very friendly The plane was nice and clean and modern Because I’m here in the UK to visit my Dad who’s critically ill the details of me getting here were very important and nice to see staff being pleasant and professional

Both departure and return flights had mechanical delays. Their planes are antiquated resulting in a two hour flight taking almost four hours to complete.

Flight delays for communication overall not a good experience uncomfortable on the plane. Person in front of me reclined his seat, putting them inches from my lap.

the plane was so hot!! the air-conditioning was barely blowing. The flight was delayed, and we had to sit on the hot plane before take off for an extended amount of time, waiting on international passengers. Would not have been so bad if it was not so hot. They said it would get better after take off, but it did not.

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