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Idaho Falls

$329+ Cheap flights from San Antonio to Idaho Falls (SAT - 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — IDA
Jul 31 — Aug 71
Fri 7/31
Fri 8/7
1 adult, Economy
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Cheap 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, 2026.

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 8/156:50 am
SAT
-
IDA
1 stop5h 00m
Delta
Fri 8/287:00 pm
IDA
-
SAT
1 stop4h 26m
Delta
Deal found 6/29$329
This Delta deal was found by Cheapflights users on 6/26. 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.
Thu 8/207:30 am
SAT
-
IDA
2 stops11h 50m
Delta
Tue 8/2511:35 am
IDA
-
SAT
2 stops11h 21m
Delta
Deal found 6/26$339
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:21 pm
SAT
-
IDA
1 stop7h 21m
Alaska Airlines
Sat 11/76:04 am
IDA
-
SAT
1 stop9h 21m
Alaska Airlines
Deal found 6/30$399
This United Airlines deal was found by Cheapflights users on 6/30. 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 11/38:55 am
SAT
-
IDA
1 stop5h 36m
United Airlines
Sat 11/72:32 pm
IDA
-
SAT
2 stops7h 19m
United Airlines
Deal found 6/30$424
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Sat 9/195:30 am
SAT
-
IDA
1 stop5h 23m
United Airlines
Sat 9/264:05 pm
IDA
-
SAT
1 stop6h 53m
United Airlines
Deal found 6/30$454
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:40 am
SAT
-
IDA
1 stop5h 10m
United Airlines
Wed 7/224:14 pm
IDA
-
SAT
1 stop6h 41m
United Airlines
Deal found 6/29$489
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:40 am
SAT
-
IDA
1 stop5h 10m
United Airlines
Sat 7/412:30 pm
IDA
-
SAT
1 stop9h 27m
United Airlines
Deal found 6/29$493

Find 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, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(Delta)

Popular in

December

Cheapest in

February

Average price

$451
Provider with most accurate pricing for San Antonio-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Idaho Falls Fanning Field flights.
Search Deals
From San Antonio to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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, 2026.
Use the filters below to find and compare flights from San Antonio to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sat 7/25

6:30 am-10:43 am

1 stop5h 13m

Idaho Falls Fanning Field

Mon 7/27

7:00 pm-12:26 am

1 stop4h 26m

$329

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Thu 8/20

7:30 am-6:20 pm

2 stops11h 50m

Idaho Falls Fanning Field

Tue 8/25

6:00 am-1:31 pm

1 stop6h 31m

$334

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sun 9/13

7:20 am-6:17 pm

2 stops11h 57m

Idaho Falls Fanning Field

Sun 9/20

6:57 pm-12:31 am

1 stop4h 34m

$334

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sat 8/15

7:30 am-2:35 pm

2 stops8h 05m

Idaho Falls Fanning Field

Fri 8/28

7:00 pm-12:26 am

1 stop4h 26m

$334

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 11/3

5:21 pm-11:42 pm

1 stop7h 21m

Idaho Falls Fanning Field

Sat 11/7

6:04 am-4:25 pm

1 stop9h 21m

$399

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 11/3

8:55 am-1:31 pm

1 stop5h 36m

Idaho Falls Fanning Field

Sat 11/7

2:32 pm-10:51 pm

2 stops7h 19m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Sorted by cheapest first

Compare providers for flights from San Antonio to Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Idaho Falls in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

How much does it cost to fly round-trip from San Antonio to Idaho Falls?

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, 2026.
Read through reviews of airlines operating flights from San Antonio to Idaho Falls, such as Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,452 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
Delta
7.8
Good
8,452 reviews
Delta
7.8
Good
8,452 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.
United Airlines
7.4
Good
9,909 reviews
Delta
7.8
Good
8,452 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.8

Overall

7.8

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Stacey-Ann,Aug 2023

IAH - ATL

The staff made boarding as easy as possible. Although it was a full flight, everyone was seated in a timely manner and we arrived early.

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.

  • How long is the flight from San Antonio to Idaho Falls?

    A quick flight from San Antonio to Idaho Falls can take about 5h 13m. Delta provides one of the quickest options available for as low as $329. There are 1222 mi between San Antonio and Idaho Falls.

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

    Currently priced at $328, 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 $357. Delta is 36% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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.

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 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, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$328Average$404FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$357Average$460FlexibilityNo cancel feeOn-time69%

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