IDA - SGU

$258 Find Cheap Flights from Idaho Falls to Saint George - Compare and Save

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 Saint George departing on 9/8. 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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Everything you should know

Cheapest round-trip
$328
Typical prices: $228-$1,409
Delta
Wed 10/21Wed 10/28
IDA - SGU • 1 stop
Cheapest one-way
$258
United Airlines
Tue 9/8
IDA - SGU • 1 stop
Top airlines
Cheapest • from $328 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Idaho Falls and Saint George. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $434 (round-trip)
Shortest trip • 3h 35m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
+1
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We hope you love your trip to Saint George!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Idaho Falls to Saint George (IDA-SGU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Saint George 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 Saint George

Wed, Oct 21 - Wed, Oct 28
Delta Logo
1:05 pm - 4:56 pmIDA  Idaho Falls Fanning Field-SGU Saint George
3h 51m1 stop Salt Lake City
Delta Logo
5:31 pm - 10:10 pmSGU  Saint George-IDA Idaho Falls Fanning Field
4h 39m1 stop Salt Lake City
$328Delta
Wed, Sep 2 - Wed, Sep 9
United Airlines Logo
7:00 am - 1:15 pmIDA  Idaho Falls Fanning Field-SGU Saint George
6h 15m1 stop Denver Intl
United Airlines Logo
8:34 am - 3:23 pmSGU  Saint George-IDA Idaho Falls Fanning Field
6h 49m1 stop Denver Intl
$338United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
10:35 am - 6:12 pmIDA  Idaho Falls Fanning Field-SGU Saint George
7h 37m1 stop Denver Intl
United Airlines Logo
10:55 am - 3:23 pmSGU  Saint George-IDA Idaho Falls Fanning Field
4h 28m1 stop Denver Intl
$373United Airlines
Fri, Dec 11 - Mon, Dec 14
Delta Logo
1:11 pm - 6:35 pmIDA  Idaho Falls Fanning Field-SGU Saint George
5h 24m1 stop Salt Lake City
Delta Logo
3:20 pm - 6:16 pmSGU  Saint George-IDA Idaho Falls Fanning Field
2h 56m1 stop Salt Lake City
$387Delta
Fri, Dec 11 - Mon, Dec 14
Delta Logo
1:11 pm - 6:35 pmIDA  Idaho Falls Fanning Field-SGU Saint George
5h 24m1 stop Salt Lake City
Delta Logo
3:20 pm - 6:16 pmSGU  Saint George-IDA Idaho Falls Fanning Field
2h 56m1 stop Salt Lake City
$387Delta
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
7:00 am - 1:15 pmIDA  Idaho Falls Fanning Field-SGU Saint George
6h 15m1 stop Denver Intl
United Airlines Logo
10:55 am - 5:16 pmSGU  Saint George-IDA Idaho Falls Fanning Field
6h 21m1 stop Denver Intl
$459United Airlines
Fri, Aug 28 - Mon, Aug 31
United Airlines Logo
5:53 pm - 10:20 amIDA  Idaho Falls Fanning Field-SGU Saint George
16h 27m1 stop Denver Intl
United Airlines Logo
5:00 am - 9:51 amSGU  Saint George-IDA Idaho Falls Fanning Field
4h 51m1 stop Denver Intl
$472United Airlines
Tue, Sep 1 - Mon, Sep 7
Delta Logo
7:00 pm - 9:56 pmIDA  Idaho Falls Fanning Field-SGU Saint George
2h 56m1 stop Salt Lake City
Delta Logo
11:27 am - 2:35 pmSGU  Saint George-IDA Idaho Falls Fanning Field
3h 08m1 stop Salt Lake City
$623Delta
Fri, Sep 18 - Sun, Sep 20
Delta Logo
6:57 pm - 9:57 pmIDA  Idaho Falls Fanning Field-SGU Saint George
3h 00m1 stop Salt Lake City
Delta Logo
5:50 am - 12:15 pmSGU  Saint George-IDA Idaho Falls Fanning Field
6h 25m1 stop Salt Lake City
$682Delta
Tue, Nov 24 - Sun, Nov 29
American Airlines Logo
6:45 am - 11:17 amIDA  Idaho Falls Fanning Field-SGU Saint George
4h 32m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:01 pm - 10:28 pmSGU  Saint George-IDA Idaho Falls Fanning Field
4h 27m1 stop Phoenix Sky Harbor Intl
$1,034American Airlines
Booking Insights

KAYAK's insights & trends for Idaho Falls to Saint George flights

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

What is the cheapest month to fly from Idaho Falls to Saint George?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Idaho Falls to Saint George, 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 Saint George is April, where tickets cost $0 (return) on average. On the other hand, the most expensive months are October and March, where the average cost of round-trip tickets is $1,409 and $599 respectively.

Good to know

Cheapest flight

$258
Most popular time to fly and prices are also 45% lower on average.
Flight from Idaho Falls to Saint George

When to book flights from Idaho Falls to Saint George

Are your dates flexible? Find out the best times to travel from Idaho Falls to Saint George based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Idaho Falls to Saint George

  • What is the cheapest flight from Idaho Falls to Saint George?

    In the last 5 days, the lowest price for a flight from Idaho Falls to Saint George was $258 for a one-way ticket and $328 for a round-trip.

  • Do I need a passport to fly between Idaho Falls and Saint George?

    No, a passport isn't needed to fly from Idaho Falls to Saint George. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Idaho Falls to Saint George?

    When flying out of Idaho Falls you will be using Idaho Falls Fanning Field. You will be landing at Saint George, also known as Saint George.

  • Which aircraft models fly most regularly from Idaho Falls to Saint George?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Idaho Falls to Saint George?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Idaho Falls and Saint George, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Idaho Falls to Saint George, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Idaho Falls to Saint George are Delta and United Airlines. With an average price for the route of $389 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $278 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Idaho Falls to Saint George?

    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 Saint George.

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

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

    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 to Saint George with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and SGU can sometimes prove cheaper using this method.

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

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

Reviews of the top airlines flying from Idaho Falls to Saint George

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Saint George. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Idaho Falls to Saint George? 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.
7.8
DeltaOverall score based on 8499 reviews
7.8Comfort
8.1Boarding
7.2Food
7.8Entertainment
8.5Crew
Airline reviews

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

10.0 ExcellentJon, Jul 2026
Read more Delta reviews

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

We had a terrible experience. The flight was delayed several hours, so we missed our connection. We were told to wait at the airport. At around 11:00 pm, the flight was cancelled. There were no available seats out of Jackson for the next two days. Fortunately, we had the foresight to rebook on United for the next day. However, we had to spend a long day at the airport and an overnight at a mediocre hotel. It was a miserable way to spend part of our vacation. We also sacrificed our $450 deposit on our California hotel because we could not get there.

Crew was absolutely fantastic and we’re so welcoming and friendly ❤️

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

I specifically picked out right side aisle seats because my left knee sometimes needs to be stretched. But my experience this trip was that the seats were shuffled and I lost those assigned seats, resulting in me having to sit in a much less desirable position for my comfort.

Other airlines were canceling flights but Delta got us home. Crew was friendly and professional. It would have been nice to have had a little more notice about the delays because we had already arrived at the airport when the first of several delays were communicated but I understand that storm forecasting isn’t simple and we were grateful that Delta didn’t just cancel the flight.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

On time departure and early arrival. Kind and professional service from flight crew

Flight was 2.5 late. Maybe not United’s fault but late none the less. We were late as well on the first leg. WiFi quit working with an hour left.

Old 757 with poor entertainment system. United no longer partners with United for free text and email. O'Hara an absolute disaster! Limited gates clauses two hour delay. Unfortunately this appears to be the norm.

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

It was a good experience, unfortunately my checked baggages were come late and not arrived on time.

Very stressful to locate United Airline boarding area, delayed flight, changing boarding area again to another location with all tiredness 😩. But flying was fine.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

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.

United Airlines was fantastic, however, UnderPricer was a nightmare. I got to the airport 4 hours before my flight. We are moving to New Zealand so had quite a bit of baggage (16 checked items) and so wanted to have plenty of time to get everything taken care of properly. When I went to check in they (United) could only find a ticket for me. The 5 tickets for my children were never officially ticketed. I called Underpricer and they told me it was United's fault and United told me that Underpricer just needs to reissue the tickets, but they refused to. I asked the Underpricer agent to transfer me to his supervisor as I was not getting the help I needed. He told me the supervisor was busy but that he would call me back in 30 minutes. 30 minutes came and went with no phone call. After an hour I called Underpricer back but they would not let me talk to the person I had talked to before, just told me that he was talking with the supervisor and technical support. I called again an hour later, was told the same thing. I tried again later, with only about 30 minutes until my flight was scheduled to leave (meaning I had been at the airport for more than 3 hours with my 5 children trying to get ticketed and board the flight). Also, my husband had moved to New Zealand 3 months prior, I haven't seen him in 3 months, my children hadn't seen their dad in 3 months, we were all extremely eager to get on that flight and get to New Zealand. The situation with the tickets did not get resolved until after it was too late to check our luggage and board our flight. We were devastated. My 11 year old son was in tears at not being able to be on his way to see his dad. Thankfully we were rebooked for the next evening, but that night it felt devastating. We'd been at the airport for 4 hours waiting. My in-laws waited with me and then helped me reload all our baggage and took us home to stay with them for the night. On the newly booked flights we could not sit together - my children were spread throughout the plane. So, even though I had paid extra to select our seats after buying my seats from Underpricer only two of us were able to sit together (thankful that my 11 year old wasn't all by himself, but not happy that my 14 & 16 year old daughters were seated by strangers). I really feel that Underpricer should refund me what I paid for the seating ($120 USD). It was a very frustrating situation and I plan on never using Kayak or Underpricer ever again.

737 Max was leaking water into the cabin through the windows. Overhead bins opened on landing. Bad bad plane.

Everything you need to know for your flight from Idaho Falls to Saint George

Information on your arrival and departure airports