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$121+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — SAT
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
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Cheap flight deals from Idaho Falls to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to San Antonio (SAT). 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 septiembre 16, 2025.

Round-trip from

$284
(Kiwi.com)

One-way from

$121
(Trip.com)

Popular in

March

Cheapest in

November

Average price

$485
From Idaho Falls Fanning Field to San Antonio
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One-way flight from Idaho Falls Fanning Field to San Antonio
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($10 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 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 septiembre 16, 2025.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/207:40 pmIDA - SAT
1 stop27h 00mMultiple Airlines
mié. 10/297:00 amSAT - IDA
2 stops39h 23mMultiple Airlines
Deal found 9/14$284
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/204:15 pmIDA - SAT
1 stop6h 49mAlaska Airlines
mié. 10/296:32 amSAT - IDA
1 stop9h 41mAlaska Airlines
Deal found 9/14$355
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/204:15 pmIDA - SAT
1 stop6h 49mHawaiian Airlines
mié. 10/296:32 amSAT - IDA
1 stop9h 41mHawaiian Airlines
Deal found 9/14$370
This Delta deal was found by Cheapflights users on 9/15. 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.
vie. 10/176:53 pmIDA - SAT
1 stop4h 38mDelta
mié. 10/227:30 amSAT - IDA
1 stop6h 03mDelta
Deal found 9/15$371
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/174:15 pmIDA - SAT
1 stop6h 49mHawaiian Airlines
mié. 10/226:40 amSAT - IDA
1 stop9h 58mHawaiian Airlines
Deal found 9/14$376
This United Airlines deal was found by Cheapflights users on 9/16. 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.
jue. 12/42:45 pmIDA - SAT
1 stop5h 08mUnited Airlines
lun. 12/84:34 pmSAT - IDA
1 stop5h 38mUnited Airlines
Deal found 9/16$398
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/188:43 pmIDA - SAT
2 stops21h 17mMultiple Airlines
jue. 10/29:47 pmSAT - IDA
1 stop19h 27mMultiple Airlines
Deal found 9/16$450
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.
mié. 11/128:30 amIDA - SAT
1 stop7h 28mUnited Airlines
lun. 11/174:24 pmSAT - IDA
2 stops7h 28mUnited Airlines
Deal found 9/14$456
This Delta deal was found by Cheapflights users on 9/16. 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.
jue. 10/166:53 pmIDA - SAT
1 stop4h 38mDelta
jue. 10/237:30 amSAT - IDA
1 stop6h 03mDelta
Deal found 9/16$460

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to San Antonio 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 septiembre 16, 2025.
Use the filters below to find and compare flights from Idaho Falls to San Antonio that are best for you.

Fly from

Idaho Falls

Fly to

San Antonio

Route

Depart

Return

Price

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

lun. 10/20

7:40 pm-11:40 pm

1 stop27h 00m

San Antonio

mié. 10/29

7:00 am-9:23 pm

2 stops39h 23m

$284

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

lun. 10/20

4:15 pm-12:04 am

1 stop6h 49m

San Antonio

mié. 10/29

6:32 am-3:13 pm

1 stop9h 41m

$355

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

lun. 10/20

4:15 pm-12:04 am

1 stop6h 49m

San Antonio

mié. 10/29

6:32 am-3:13 pm

1 stop9h 41m

$370

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

mié. 11/12

6:57 pm-12:35 am

1 stop4h 38m

San Antonio

lun. 11/17

5:54 pm-10:19 pm

1 stop5h 25m

$371

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

vie. 10/17

6:53 pm-12:31 am

1 stop4h 38m

San Antonio

mié. 10/22

7:30 am-12:33 pm

1 stop6h 03m

$371

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

mar. 3/10

6:45 pm-12:45 am

1 stop5h 00m

San Antonio

mié. 3/11

6:05 pm-10:21 pm

1 stop5h 16m

$371

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

vie. 10/17

4:15 pm-12:04 am

1 stop6h 49m

San Antonio

mié. 10/22

6:40 am-3:38 pm

1 stop9h 58m

$376

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

jue. 12/4

2:45 pm-8:53 pm

1 stop5h 08m

San Antonio

lun. 12/8

4:34 pm-9:12 pm

1 stop5h 38m

$398

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

lun. 10/6

7:40 pm-11:40 pm

1 stop27h 00m

$121

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

mié. 11/12

6:57 pm-12:35 am

1 stop4h 38m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 12 results
1
2

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, August is the cheapest month in which you can book a flight from Idaho Falls to San Antonio (average of $295). Flying from Idaho Falls to San Antonio in March is currently the most expensive (average of $376). 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.

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

Find hourly flight availability from Idaho Falls to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 16, 2025.

It’s optimal to fly from Idaho Falls to San Antonio in the afternoon. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated septiembre 16, 2025.
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
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

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 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?

    Alaska Airlines and Hawaiian Airlines can get you from Idaho Falls to San Antonio in just under 6h 49m. Your travel time can differ by up to . There are 1222 mi between Idaho Falls and San Antonio.

  • 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, August is the cheapest month in which you can book a flight from Idaho Falls to San Antonio (average of $295). Flying from Idaho Falls to San Antonio in March is currently the most expensive (average of $376). 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?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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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

Discover the top 2 airlines that operate flights from Idaho Falls to San Antonio. 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 septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$230Average$392FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$370Average$485FlexibilityNo cancel feeOn-time69%

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