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

Currently priced at $398, 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. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $461 and $473, respectively. Delta is 24% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest day to fly from San Antonio to Idaho Falls?

Travelers seeking maximum savings on their San Antonio to Idaho Falls flight should consider departing on Tuesday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from San Antonio to Idaho Falls?

Sunday flights are found to be more expensive to fly from San Antonio to Idaho Falls. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Idaho Falls.

What is the cheapest month to fly from San Antonio to Idaho Falls?

January is one of the best times of the year to fly to Idaho Falls from San Antonio. Prices for January average $526 per person but you can even find prices for as low as $332. The most expensive prices can be found in the month of March. Opting for a January flight can save you 27% on your journey compared to booking in March

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

One of the essential ways to save on airfare from San Antonio to Idaho Falls is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 12% on airfare.

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 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 San Antonio-Idaho Falls 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 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.

$281+ Flights from San Antonio to Idaho Falls - Compare & Save Big

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1. Tell us where you want to go

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Cheap flight deals from San Antonio to Idaho Falls

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$398 (Delta)
One-way from	$281 (Delta)
Popular in	March
Cheapest in	January
Average price	$608

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

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

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From San Antonio to Idaho Falls Fanning Field

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

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($43 potential increase over avg. RT price).

Search Deals

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 April 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 April 30, 2025.

Mon 6/26:10 pmSAT - IDA

1 stop5h 41mDelta

Sat 6/76:00 amIDA - SAT

1 stop6h 45mDelta

Deal found 4/29

$398

Wed 5/148:00 amSAT - IDA

1 stop5h 27mAmerican Airlines

Sun 5/187:00 amIDA - SAT

1 stop7h 49mAmerican Airlines

Deal found 4/29

$461

Fri 7/185:15 amSAT - IDA

1 stop5h 29mUnited Airlines

Fri 7/254:13 pmIDA - SAT

1 stop6h 46mUnited Airlines

Deal found 4/29

$473

Best flights from San Antonio to Idaho Falls
Discover carefully curated flight deals from San Antonio to Idaho Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Mon 6/26:10 pmSAT - IDA

1 stop5h 41mDelta

Sat 6/76:00 amIDA - SAT

1 stop6h 45mDelta

Deal found 4/29

$398

Wed 5/148:00 amSAT - IDA

1 stop5h 27mAmerican Airlines

Sun 5/187:00 amIDA - SAT

1 stop7h 49mAmerican Airlines

Deal found 4/29

$461

Fri 7/185:15 amSAT - IDA

1 stop5h 29mUnited Airlines

Fri 7/254:13 pmIDA - SAT

1 stop6h 46mUnited Airlines

Deal found 4/29

$473

Last-minute flights from San Antonio to Idaho Falls
Discover last-minute flight deals from San Antonio to Idaho Falls. Data last updated April 30, 2025 and is based on user searches.

Wed 5/77:45 amSAT - IDA

1 stop5h 05mDelta

Wed 5/146:50 pmIDA - SAT

1 stop4h 49mDelta

Deal found 4/28

$541

Wed 5/72:25 pmSAT - IDA

2 stops9h 20mUnited Airlines

Wed 5/145:00 amIDA - SAT

2 stops7h 18mUnited Airlines

Deal found 4/28

$601

Wed 5/148:00 amSAT - IDA

1 stop5h 27mAmerican Airlines

Sun 5/187:00 amIDA - SAT

1 stop7h 49mAmerican Airlines

Deal found 4/29

$461

Wed 5/145:30 amSAT - IDA

1 stop5h 02mUnited Airlines

Sun 5/185:00 amIDA - SAT

2 stops9h 46mUnited Airlines

Deal found 4/29

$508

Wed 5/146:25 amSAT - IDA

2 stops12h 45mDelta

Sun 5/1812:30 pmIDA - SAT

2 stops10h 12mDelta

Deal found 4/29

$610

One-way flights from San Antonio to Idaho Falls
Search for one-way flight options from San Antonio to Idaho Falls. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Tue 5/68:00 amSAT - IDA

1 stop5h 26mDelta

Deal found 4/28

$281

Tue 5/67:00 amSAT - IDA

3 stops15h 04mUnited Airlines

Deal found 4/28

$1,051

Cheapflights Fare Finder

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

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Mon 6/2

6:10 pm-10:51 pm

1 stop5h 41m

Idaho Falls Fanning Field

Sat 6/7

6:00 am-1:45 pm

1 stop6h 45m

$398

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Wed 5/14

8:00 am-12:27 pm

1 stop5h 27m

Idaho Falls Fanning Field

Sun 5/18

7:00 am-3:49 pm

1 stop7h 49m

$461

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Fri 7/18

5:15 am-9:44 am

1 stop5h 29m

Idaho Falls Fanning Field

Fri 7/25

4:13 pm-11:59 pm

1 stop6h 46m

$473

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 5/6

8:00 am-12:26 pm

1 stop5h 26m

$281

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 5/6

7:00 am-9:04 pm

3 stops15h 04m

$1,051

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Compare providers for flights from San Antonio to Idaho Falls

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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust 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 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 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

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 July is currently the most expensive (average of $628). 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.

Rainfall in Idaho Falls by month

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

If weather is an important factor for your trip to Idaho Falls, 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown Delta, United Airlines and American Airlines from San Antonio to Idaho Falls. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,936 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,936 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines flying from San Antonio to Idaho Falls round-trip?
Currently priced at $398, 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. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $461 and $473, respectively. Delta is 24% 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.
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 July is currently the most expensive (average of $628). 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 San Antonio to Idaho Falls

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$314	Average$513	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$392	Average$575	FlexibilityNo cancel fee	On-timeN/A

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$281+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio to Idaho Falls with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Antonio to Idaho Falls

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Antonio to Idaho Falls

Cheapest flights from San Antonio to Idaho FallsExplore 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 April 30, 2025.

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 April 30, 2025.

Cheapflights Fare Finder

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

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 April.

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.

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?

Rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average rainfall totals by month.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals by month.

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown Delta, United Airlines and American Airlines from San Antonio to Idaho Falls. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

Traveling to a place near San Antonio?

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Alternative routes for San Antonio to Idaho Falls

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Top 2 airlines flying from San Antonio to Idaho Falls

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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 April 30, 2025.