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Idaho Falls

$278+ Cheap flights from Saint George to Idaho Falls (SGU - IDA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SGU — IDA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Saint George to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Saint George (SGU) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$278
(United Airlines)

Popular in

April

Cheapest in

February

Average price

$378
From Saint George to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Saint George to Idaho Falls

Cheapest flights from Saint George to Idaho Falls
Explore the most affordable flight options available from Saint George to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/145:30 pmSGU - IDA
1 stop5h 22mUnited Airlines
Sun 11/165:00 amIDA - SGU
1 stop5h 07mUnited Airlines
Deal found 9/14$278
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/105:18 amSGU - IDA
1 stop4h 30mUnited Airlines
Sun 10/125:56 pmIDA - SGU
1 stop16h 00mUnited Airlines
Deal found 9/13$392
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/195:18 amSGU - IDA
1 stop4h 29mUnited Airlines
Sat 9/204:00 pmIDA - SGU
1 stop6h 54mUnited Airlines
Deal found 9/14$524
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:33 pmSGU - IDA
1 stop5h 15mUnited Airlines
Fri 9/194:15 pmIDA - SGU
2 stops24h 06mUnited Airlines
Deal found 9/13$689
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:30 pmSGU - IDA
1 stop5h 19mUnited Airlines
Fri 10/35:56 pmIDA - SGU
1 stop5h 00mUnited Airlines
Deal found 9/14$695

Cheapflights Fare Finder

 
Customize your flight search to find flights from Saint George to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Saint George to Idaho Falls that are best for you.

Fly from

Saint George

Fly to

Idaho Falls

Route

Depart

Return

Price

Saint GeorgeIdaho Falls

SGU - IDA

SGUIDA

Saint George

Fri 11/14

5:30 pm-10:52 pm

1 stop5h 22m

Idaho Falls Fanning Field

Sun 11/16

5:00 am-10:07 am

1 stop5h 07m

$278

Saint GeorgeIdaho Falls

SGU - IDA

SGUIDA

Saint George

Fri 10/10

5:18 am-9:48 am

1 stop4h 30m

Idaho Falls Fanning Field

Sun 10/12

5:56 pm-9:56 am

1 stop16h 00m

$392

Saint GeorgeIdaho Falls

SGU - IDA

SGUIDA

Saint George

Mon 9/29

5:30 pm-10:49 pm

1 stop5h 19m

Idaho Falls Fanning Field

Fri 10/3

5:56 pm-10:56 pm

1 stop5h 00m

$695

Saint GeorgeIdaho Falls

SGU - IDA

SGUIDA

Saint George

Thu 9/25

5:18 am-9:48 am

1 stop4h 30m

$338

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Saint George to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Saint George with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest time of day to fly from SGU to IDA?

Find hourly flight availability from Saint George to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

One of the essential ways to save on airfare from Saint George to Idaho Falls is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 10% on airfare.

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho Falls. Reviews last updated September 15, 2025.
Peruse reviews from past customers who have flown with Delta from Saint George to Idaho Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,956 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Food

7.3

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Saint George to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Saint George to Idaho Falls?

    Departing from Saint George to Idaho Falls will take you 5h 22m. There are 451 mi between Saint George and Idaho Falls.

  • What is the cheapest airline to fly from Saint George to Idaho Falls round-trip?

    Flying on Delta is currently your cheapest option to Idaho Falls, with prices starting at $218. You may be able to fly from Saint George to Idaho Falls for 46% less than the average price by searching for this airline.

  • Can I find deals for flights from Saint George to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on Saint George to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Saint George to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Saint George to Idaho Falls.

  • Can I find deals for business class flights from Saint George to Idaho Falls?

    Yes. Cheapflights offers flight deals from Saint George to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, October is the cheapest month in which you can book a flight from Saint George to Idaho Falls (average of $380). Flying from Saint George to Idaho Falls in December is currently the most expensive (average of $578). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

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Top airline flying from Saint George to Idaho Falls

Discover the top airline that operate flights from Saint George to Idaho Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$218Average$466FlexibilityNo cancel feeOn-timeN/A

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