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Cheap flights from Idaho Falls to San Antonio from $226

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to San Antonio departing on 2/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Idaho Falls to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:31 pm - 8:49 pm
IDA
-
SAT
5h 18m
1 stop
United Airlines Logo
5:30 am - 9:28 am
SAT
-
IDA
4h 58m
1 stop
$289United Airlines
Sat, May 16 - Sat, May 23
Delta Logo
6:35 pm - 12:41 am
IDA
-
SAT
5h 06m
1 stop
Delta Logo
7:00 am - 5:49 pm
SAT
-
IDA
11h 49m
2 stops
$294Delta
Tue, Feb 24 - Tue, Mar 3
Delta Logo
6:35 pm - 12:41 am
IDA
-
SAT
5h 06m
1 stop
Delta Logo
5:59 pm - 10:21 pm
SAT
-
IDA
5h 22m
1 stop
$301Delta
Mon, Feb 23 - Mon, Mar 2
Delta Logo
1:09 pm - 9:25 pm
IDA
-
SAT
7h 16m
1 stop
Delta Logo
7:35 am - 6:17 pm
SAT
-
IDA
11h 42m
2 stops
$334Delta
Sat, Apr 18 - Sat, Apr 25
Delta Logo
6:58 pm - 9:46 am
IDA
-
SAT
13h 48m
2 stops
Delta Logo
7:35 am - 6:17 pm
SAT
-
IDA
11h 42m
2 stops
$340Delta
Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
6:45 am - 1:00 pm
IDA
-
SAT
5h 15m
1 stop
United Airlines Logo
4:45 pm - 9:00 pm
SAT
-
IDA
5h 15m
1 stop
$349United Airlines
Sat, Apr 18 - Sat, Apr 25
United Airlines Logo
2:31 pm - 8:49 pm
IDA
-
SAT
5h 18m
1 stop
United Airlines Logo
5:45 am - 1:31 pm
SAT
-
IDA
8h 46m
2 stops
$354United Airlines
Sat, May 16 - Sat, May 23
Delta Logo
1:10 pm - 11:43 pm
IDA
-
SAT
9h 33m
2 stops
Delta Logo
7:00 am - 5:49 pm
SAT
-
IDA
11h 49m
2 stops
$371Delta
Tue, Feb 24 - Tue, Mar 3
Delta Logo
6:50 pm - 12:44 am
IDA
-
SAT
4h 54m
1 stop
Delta Logo
6:05 pm - 10:14 pm
SAT
-
IDA
5h 09m
1 stop
$400Delta
Wed, May 13 - Sun, May 17
Delta Logo
1:05 pm - 11:18 pm
IDA
-
SAT
9h 13m
2 stops
Delta Logo
6:05 pm - 10:14 pm
SAT
-
IDA
5h 09m
1 stop
$405Delta
Wed, May 13 - Sun, May 17

Delta flights from Idaho Falls to San Antonio

Our best Delta deals on Idaho Falls to San Antonio flight tickets
Delta
Feb 24
IDA6:35 pmIdaho Falls Fanning Field
5h 06m
1 stop
SAT12:41 amSan Antonio
Mar 3
SAT7:00 amSan Antonio
11h 49m
2 stops
IDA5:49 pmIdaho Falls Fanning Field
$294
Delta
Feb 23
IDA6:35 pmIdaho Falls Fanning Field
5h 06m
1 stop
SAT12:41 amSan Antonio
Mar 2
SAT5:59 pmSan Antonio
5h 22m
1 stop
IDA10:21 pmIdaho Falls Fanning Field
$301
Delta
Apr 18
IDA1:09 pmIdaho Falls Fanning Field
7h 16m
1 stop
SAT9:25 pmSan Antonio
Apr 25
SAT7:35 amSan Antonio
11h 42m
2 stops
IDA6:17 pmIdaho Falls Fanning Field
$334

American Airlines flights from Idaho Falls to San Antonio

Our best American Airlines deals on Idaho Falls to San Antonio flight tickets
American Airlines
Feb 12
IDA2:18 pmIdaho Falls Fanning Field
7h 49m
1 stop
SAT11:07 pmSan Antonio
Feb 16
SAT5:00 amSan Antonio
9h 48m
1 stop
IDA1:48 pmIdaho Falls Fanning Field
$505
American Airlines
Feb 12
IDA2:18 pmIdaho Falls Fanning Field
7h 49m
1 stop
SAT11:07 pmSan Antonio
Feb 16
SAT7:00 amSan Antonio
7h 48m
1 stop
IDA1:48 pmIdaho Falls Fanning Field
$539
American Airlines
Feb 23
IDA6:03 amIdaho Falls Fanning Field
16h 37m
1 stop
SAT11:40 pmSan Antonio
Mar 2
SAT7:00 amSan Antonio
7h 48m
1 stop
IDA1:48 pmIdaho Falls Fanning Field
$839

momondo 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, momondo users made 832,500 searches. Data last updated January 26, 2026.
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

Sat 5/16

2:31 pm-8:49 pm

1 stop5h 18m

San Antonio

Sat 5/23

5:30 am-9:28 am

1 stop4h 58m

$289

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Tue 2/24

6:35 pm-12:41 am

1 stop5h 06m

San Antonio

Tue 3/3

7:00 am-5:49 pm

2 stops11h 49m

$294

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Mon 2/23

6:35 pm-12:41 am

1 stop5h 06m

San Antonio

Mon 3/2

5:59 pm-10:21 pm

1 stop5h 22m

$301

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Sat 4/18

1:09 pm-9:25 pm

1 stop7h 16m

San Antonio

Sat 4/25

7:35 am-6:17 pm

2 stops11h 42m

$334

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Sat 4/18

6:58 pm-9:46 am

2 stops13h 48m

San Antonio

Sat 4/25

7:35 am-6:17 pm

2 stops11h 42m

$340

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Sat 4/18

6:45 am-1:00 pm

1 stop5h 15m

San Antonio

Sat 4/25

4:45 pm-9:00 pm

1 stop5h 15m

$349

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Sat 5/16

2:31 pm-8:49 pm

1 stop5h 18m

San Antonio

Sat 5/23

5:45 am-1:31 pm

2 stops8h 46m

$354

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Tue 2/24

1:10 pm-11:43 pm

2 stops9h 33m

San Antonio

Tue 3/3

7:00 am-5:49 pm

2 stops11h 49m

$371

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Wed 5/13

6:50 pm-12:44 am

1 stop4h 54m

San Antonio

Sun 5/17

6:05 pm-10:14 pm

1 stop5h 09m

$400

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Wed 5/13

1:05 pm-11:18 pm

2 stops9h 13m

San Antonio

Sun 5/17

6:05 pm-10:14 pm

1 stop5h 09m

$405

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Idaho Falls to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of April, then book flights to San Antonio from Idaho Falls during November instead. Flights to San Antonio in November, while not as cheap as those in April, still average around $370.

When to book flights from Idaho Falls to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Idaho Falls to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Idaho Falls to San Antonio (IDA to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho Falls to San Antonio

Fastest flight time

5h 02m

Direct flights

None
The fastest flight from Idaho Falls to San Antonio takes 5h 02m
There are no direct flights from Idaho Falls to San Antonio. There are no popular flight routes from Idaho Falls to San Antonio.
Search flight deals

  • How far is Idaho Falls Fanning Field to San Antonio by plane?

    A flight from Idaho Falls Fanning Field to San Antonio will travel around 1223.6 mi. By plane, this route typically takes 5h 02m.

  • When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to San Antonio Airport?

    Prices for flights from Idaho Falls Fanning Field Airport to San Antonio Airport are updated daily.

  • How many operators does momondo search for flights from Idaho Falls Fanning Field Airport to San Antonio Airport?

  • How old do you have to be to fly from Idaho Falls Fanning Field Airport to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The necessary travel and health documents for your San Antonio Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Idaho Falls to San Antonio?

Best airlines flying from Idaho Falls to San Antonio

Compare and see reviews for airlines that fly from Idaho Falls to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $229Free CancellationRating
7.9
8,111 reviews
Search Delta flights
United AirlinesPriceFrom $387Free CancellationRating
7.4
9,199 reviews
Search United Airlines flights

Traveling to a place near San Antonio?

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

Why use momondo?

Why should I use momondo to find a flight deal from Idaho Falls to San Antonio?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Idaho Falls to San Antonio. momondo saves you time and could save you money on your trip.

Can I find flights from Idaho Falls to San Antonio with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Idaho Falls to San Antonio flights to just show those with flexible booking policies.

How can momondo help me find flights from Idaho Falls to San Antonio?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho Falls to San Antonio.

I’m not ready to book a flight from Idaho Falls to San Antonio right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Antonio, momondo offers a useful price alert feature which will track prices for flights to San Antonio from Idaho Falls and alert you when they change.

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