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Idaho Falls

$197+ Cheap flights from San Antonio to Idaho Falls (SAT - IDA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — IDA
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheap flight deals from San Antonio to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) 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 July 1, 2025.

Round-trip from

$341
(Delta)

One-way from

$197
(Delta)

Popular in

March

Cheapest in

January

Average price

$448
From San Antonio to Idaho Falls Fanning Field
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One-way flight from San Antonio to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 10% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from San Antonio to Idaho Falls

Cheapest flights from San Antonio to Idaho Falls
Explore the most affordable flight options available from San Antonio to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

This Delta deal was found by Cheapflights users on 6/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2712:40 pmSAT - IDA
1 stop6h 31mDelta
Wed 10/16:51 pmIDA - SAT
1 stop4h 28mDelta
Deal found 6/29$341
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Tue 7/294:36 pmSAT - IDA
1 stop7h 15mUnited Airlines
Tue 8/56:03 pmIDA - SAT
1 stop4h 56mUnited Airlines
Deal found 7/1$351

Cheapflights Fare Finder

Customize your flight search to find flights from San Antonio 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 July 1, 2025.
Use the filters below to find and compare flights from San Antonio to Idaho Falls that are best for you.

Fly from

San Antonio

Fly to

Idaho Falls

Route

Depart

Return

Price

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sat 9/27

12:40 pm-6:11 pm

1 stop6h 31m

Idaho Falls Fanning Field

Wed 10/1

6:51 pm-12:19 am

1 stop4h 28m

$341

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 7/29

4:36 pm-10:51 pm

1 stop7h 15m

Idaho Falls Fanning Field

Tue 8/5

6:03 pm-11:59 pm

1 stop4h 56m

$351

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 7/22

6:03 pm-10:29 pm

1 stop5h 26m

$197

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Mon 7/21

4:36 pm-10:51 pm

1 stop7h 15m

$206

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Fri 7/11

7:00 am-3:22 pm

1 stop9h 22m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from San Antonio to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from San Antonio 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 San Antonio to Idaho Falls

What is the cheapest month to book a flight from San Antonio to Idaho Falls?

Currently, October is the cheapest month in which you can book a flight from San Antonio to Idaho Falls (average of $380). Flying from San Antonio 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.

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 July 1, 2025.
Read through reviews of airlines operating flights from San Antonio to Idaho Falls, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,858 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

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

  • What are the cheapest airlines flying from San Antonio to Idaho Falls round-trip?

    Currently priced at $341, Delta will fly you from San Antonio to Idaho Falls and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $351. Delta is 35% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Antonio to Idaho Falls one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $197. However, be on the lookout for offers from United Airlines and Alaska Airlines, as they are both options that can get you from San Antonio to Idaho Falls for a low price.

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

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

  • How can I find direct flights from San Antonio to Idaho Falls?

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

  • Can I find deals for business class flights from San Antonio to Idaho Falls?

    Yes. Cheapflights offers flight deals from San Antonio 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 San Antonio to Idaho Falls?

    Currently, October is the cheapest month in which you can book a flight from San Antonio to Idaho Falls (average of $380). Flying from San Antonio 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 San Antonio?

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Top 2 airlines flying from San Antonio to Idaho Falls

Discover the top 2 airlines that operate flights from San Antonio 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$314Average$499FlexibilityNo cancel feeOn-time69%
DeltaCheapest$371Average$575FlexibilityNo cancel feeOn-timeN/A

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