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

Alaska Airlines and Delta can get you from Idaho Falls to San Antonio in just under 5h 06m. Your travel time can differ by up to 2h 39m. There are 1222 mi between Idaho Falls and San Antonio. Both multi-stop and nonstop flights can be found to your destination and back.

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

According to our current data, Delta ($230), and United Airlines ($370) offers the cheapest pricing from Idaho Falls to San Antonio. These flights start at 51% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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

When flying from Idaho Falls to San Antonio, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Idaho Falls-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Idaho Falls-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Idaho Falls-San Antonio flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Idaho Falls-San Antonio flights, Cheapflights users trust eDreams the most. eDreams 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 Idaho Falls-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

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

$186+ Flights from Idaho Falls to San Antonio

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Cheap flight deals from Idaho Falls to San Antonio

Cheapest flights from Idaho Falls to San Antonio
Explore the most affordable flight options available from Idaho Falls to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 29, 2025.

Mon 12/292:30 pmIDA - SAT

1 stop5h 30mUnited Airlines

Sat 1/104:43 pmSAT - IDA

1 stop5h 33mUnited Airlines

Deal found 12/29

$895

Best flights from Idaho Falls to San Antonio
Discover carefully curated flight deals from Idaho Falls to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 29, 2025.

Thu 1/229:00 amIDA - SAT

1 stop7h 45mAlaska Airlines

Tue 1/276:46 pmSAT - IDA

1 stop24h 32mAlaska Airlines

Deal found 12/26

$359

Thu 2/126:35 pmIDA - SAT

1 stop5h 06mDelta

Mon 2/165:59 pmSAT - IDA

1 stop5h 22mDelta

Deal found 12/27

$371

Sat 3/215:30 pmIDA - SAT

1 stop5h 02mUnited Airlines

Thu 3/265:47 amSAT - IDA

1 stop5h 09mUnited Airlines

Deal found 12/28

$392

Wed 2/185:20 pmIDA - SAT

1 stop22h 54mAlaska Airlines

Mon 3/26:06 pmSAT - IDA

1 stop23h 37mAlaska Airlines

Deal found 12/27

$371

Tue 2/36:35 pmIDA - SAT

1 stop5h 06mDelta

Fri 2/66:20 pmSAT - IDA

1 stop5h 37mDelta

Deal found 12/28

$392

Tue 1/276:58 pmIDA - SAT

1 stop21h 47mAlaska Airlines

Sat 1/316:46 pmSAT - IDA

1 stop24h 32mAlaska Airlines

Deal found 12/26

$373

Last-minute flights from Idaho Falls to San Antonio
Discover last-minute flight deals from Idaho Falls to San Antonio. Data last updated December 29, 2025 and is based on user searches.

Mon 1/510:52 pmIDA - SAT

2 stops13h 52mMultiple Airlines

Thu 1/811:55 amSAT - IDA

1 stop27h 24mMultiple Airlines

Deal found 12/27

$509

Mon 1/52:30 pmIDA - SAT

1 stop5h 30mUnited Airlines

Thu 1/84:43 pmSAT - IDA

1 stop5h 31mUnited Airlines

Deal found 12/27

$581

Tue 1/66:00 amIDA - SAT

1 stop11h 37mAlaska Airlines

Sat 1/106:46 pmSAT - IDA

1 stop24h 32mAlaska Airlines

Deal found 12/27

$565

Tue 1/66:30 amIDA - SAT

1 stop5h 39mUnited Airlines

Sat 1/1011:43 amSAT - IDA

2 stops10h 33mUnited Airlines

Deal found 12/27

$601

Thu 1/86:58 pmIDA - SAT

1 stop21h 47mAlaska Airlines

Sun 1/116:46 pmSAT - IDA

1 stop24h 32mAlaska Airlines

Deal found 12/27

$515

Thu 1/81:15 pmIDA - SAT

1 stop7h 13mDelta

Sun 1/117:00 amSAT - IDA

2 stops11h 51mDelta

Deal found 12/27

$604

One-way flights from Idaho Falls to San Antonio
Search for one-way flight options from Idaho Falls to San Antonio. Find affordable one-way fares based on user searches. Data last updated December 29, 2025.

Thu 2/126:35 pmIDA - SAT

1 stop5h 06mDelta

Deal found 12/27

$186

Thu 2/122:40 pmIDA - SAT

3 stops19h 07mUnited Airlines

Deal found 12/27

$497

Find flight deals from Idaho Falls to San Antonio

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$359 (Alaska Airlines)
One-way from	$186 (Delta)
Popular in	March
Cheapest in	November
Average price	$549

Provider with most accurate pricing for Idaho Falls Fanning Field-San Antonio flight deals.

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Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-San Antonio flights.

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From Idaho Falls Fanning Field to San Antonio

Search Deals

One-way flight from Idaho Falls Fanning Field to San Antonio

Search Deals

Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 1/22

9:00 am-5:45 pm

1 stop7h 45m

San Antonio

Tue 1/27

6:46 pm-6:18 pm

1 stop24h 32m

$359

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 2/12

6:35 pm-12:41 am

1 stop5h 06m

San Antonio

Mon 2/16

5:59 pm-10:21 pm

1 stop5h 22m

$371

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Wed 2/18

5:20 pm-5:14 pm

1 stop22h 54m

San Antonio

Mon 3/2

6:06 pm-4:43 pm

1 stop23h 37m

$371

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Tue 1/27

6:58 pm-5:45 pm

1 stop21h 47m

San Antonio

Sat 1/31

6:46 pm-6:18 pm

1 stop24h 32m

$373

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Sat 3/21

5:30 pm-11:32 pm

1 stop5h 02m

San Antonio

Thu 3/26

5:47 am-9:56 am

1 stop5h 09m

$392

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Tue 2/3

6:35 pm-12:41 am

1 stop5h 06m

San Antonio

Fri 2/6

6:20 pm-10:57 pm

1 stop5h 37m

$392

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 2/12

2:02 pm-11:03 pm

1 stop8h 01m

$186

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 2/12

6:35 pm-12:41 am

1 stop5h 06m

$186

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 2/12

2:40 pm-10:47 am

3 stops19h 07m

$497

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Compare providers for flights from Idaho Falls to San Antonio

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls to San Antonio in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

*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 Idaho Falls-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Idaho Falls-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Idaho Falls-San Antonio flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Idaho Falls-San Antonio flights, Cheapflights users trust eDreams the most. eDreams 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 Idaho Falls-San Antonio 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 Idaho Falls to San Antonio

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

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

Currently, May is the cheapest month in which you can book a flight from Idaho Falls to San Antonio (average of $184). Flying from Idaho Falls to San Antonio in July is currently the most expensive (average of $430). 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 San Antonio

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

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,017 reviews

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,122 reviews

Delta

7.9

Good

8,017 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

How long is the flight from Idaho Falls to San Antonio?
Alaska Airlines and Delta can get you from Idaho Falls to San Antonio in just under 5h 06m. Your travel time can differ by up to 2h 39m. There are 1222 mi between Idaho Falls and San Antonio. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Idaho Falls to San Antonio round-trip?
According to our current data, Delta ($230), and United Airlines ($370) offers the cheapest pricing from Idaho Falls to San Antonio. These flights start at 51% lower than the current average price 3 months from now.
Can I find deals for flights from Idaho Falls to San Antonio that include hotel bookings?
Yes. In addition to deals on Idaho Falls to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Idaho Falls to San Antonio?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to San Antonio.
Can I find deals for business class flights from Idaho Falls to San Antonio?
Yes. Cheapflights offers flight deals from Idaho Falls to San Antonio 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 Idaho Falls to San Antonio?
Currently, May is the cheapest month in which you can book a flight from Idaho Falls to San Antonio (average of $184). Flying from Idaho Falls to San Antonio in July is currently the most expensive (average of $430). 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

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Top 2 airlines flying from Idaho Falls to San Antonio

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$316	Average$418	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$370	Average$485	FlexibilityNo cancel fee	On-time69%

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$186+ Cheap flights from Idaho Falls to San Antonio (IDA - SAT)

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Idaho Falls to San Antonio with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Idaho Falls to San Antonio

Cheapest flights from Idaho Falls to San AntonioExplore the most affordable flight options available from Idaho Falls to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 29, 2025.

Explore the most affordable flight options available from Idaho Falls to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 29, 2025.

Find flight deals from Idaho Falls to San Antonio

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Compare providers for flights from Idaho Falls to San Antonio

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 Idaho Falls to San Antonio in December.

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

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Idaho Falls with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Idaho Falls to San Antonio

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

Reviews of airlines servicing San Antonio

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

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to San Antonio. 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 Idaho Falls to San Antonio?

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

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

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

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

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

Traveling to a place near San Antonio?

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Alternative routes for Idaho Falls to San Antonio

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Top 2 airlines flying from Idaho Falls to San Antonio

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Cheapest flights from Idaho Falls to San Antonio
Explore the most affordable flight options available from Idaho Falls to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 29, 2025.