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Cheap flights from Idaho Falls to San Antonio from $190

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 8/19. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Idaho Falls to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:00 pm - 12:26 am
IDA
-
SAT
4h 26m
1 stop
Delta Logo
6:30 am - 10:43 am
SAT
-
IDA
5h 13m
1 stop
$329Delta
Thu, Jul 30 - Sun, Aug 2
Delta Logo
3:22 pm - 11:54 pm
IDA
-
SAT
7h 32m
2 stops
Delta Logo
6:30 am - 10:43 am
SAT
-
IDA
5h 13m
1 stop
$334Delta
Thu, Jul 30 - Sun, Aug 2
Delta Logo
6:00 am - 5:44 pm
IDA
-
SAT
10h 44m
2 stops
Delta Logo
12:50 pm - 10:19 pm
SAT
-
IDA
10h 29m
2 stops
$339Delta
Thu, Nov 12 - Mon, Nov 16
Delta Logo
7:00 pm - 12:26 am
IDA
-
SAT
4h 26m
1 stop
Delta Logo
12:39 pm - 6:18 pm
SAT
-
IDA
6h 39m
1 stop
$354Delta
Thu, Jul 30 - Sun, Aug 2
Delta Logo
6:00 am - 2:53 pm
IDA
-
SAT
7h 53m
2 stops
Delta Logo
6:30 am - 10:43 am
SAT
-
IDA
5h 13m
1 stop
$389Delta
Thu, Jul 9 - Wed, Jul 15
United Airlines Logo
2:30 pm - 8:54 pm
IDA
-
SAT
5h 24m
1 stop
United Airlines Logo
5:40 am - 9:50 am
SAT
-
IDA
5h 10m
1 stop
$414United Airlines
Thu, Jul 9 - Wed, Jul 15
United Airlines Logo
4:04 pm - 11:57 pm
IDA
-
SAT
6h 53m
1 stop
United Airlines Logo
5:30 am - 9:53 am
SAT
-
IDA
5h 23m
1 stop
$419United Airlines
Wed, Sep 23 - Sat, Sep 26
United Airlines Logo
4:04 pm - 11:57 pm
IDA
-
SAT
6h 53m
1 stop
United Airlines Logo
5:30 am - 3:24 pm
SAT
-
IDA
10h 54m
2 stops
$424United Airlines
Wed, Sep 23 - Sat, Sep 26
Delta Logo
6:00 am - 1:36 pm
IDA
-
SAT
6h 36m
1 stop
Delta Logo
6:03 pm - 10:32 pm
SAT
-
IDA
5h 29m
1 stop
$428Delta
Thu, Jul 16 - Mon, Jul 20
United Airlines Logo
2:30 pm - 10:42 pm
IDA
-
SAT
7h 12m
2 stops
United Airlines Logo
5:40 am - 9:50 am
SAT
-
IDA
5h 10m
1 stop
$438United Airlines
Thu, Jul 9 - Wed, Jul 15

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United Airlines flights from Idaho Falls to San Antonio

Our best United Airlines deals on Idaho Falls to San Antonio flight tickets
United Airlines
Jul 9
IDA2:30 pmIdaho Falls Fanning Field
5h 24m
1 stop
SAT8:54 pmSan Antonio
Jul 15
SAT5:40 amSan Antonio
5h 10m
1 stop
IDA9:50 amIdaho Falls Fanning Field
$414
United Airlines
Sep 23
IDA4:04 pmIdaho Falls Fanning Field
6h 53m
1 stop
SAT11:57 pmSan Antonio
Sep 26
SAT5:30 amSan Antonio
5h 23m
1 stop
IDA9:53 amIdaho Falls Fanning Field
$419
United Airlines
Sep 23
IDA4:04 pmIdaho Falls Fanning Field
6h 53m
1 stop
SAT11:57 pmSan Antonio
Sep 26
SAT5:30 amSan Antonio
10h 54m
2 stops
IDA3:24 pmIdaho Falls Fanning Field
$424

Alaska Airlines flights from Idaho Falls to San Antonio

Our best Alaska Airlines deals on Idaho Falls to San Antonio flight tickets
Alaska Airlines
Jul 30
IDA4:14 pmIdaho Falls Fanning Field
11h 46m
2 stops
SAT5:00 amSan Antonio
Aug 2
SAT4:44 pmSan Antonio
21h 22m
2 stops
IDA1:06 pmIdaho Falls Fanning Field
$723
Alaska Airlines
Jul 16
IDA4:14 pmIdaho Falls Fanning Field
11h 46m
2 stops
SAT5:00 amSan Antonio
Jul 20
SAT4:44 pmSan Antonio
21h 22m
2 stops
IDA1:06 pmIdaho Falls Fanning Field
$818
Alaska Airlines
Jun 26
IDA7:15 amIdaho Falls Fanning Field
15h 44m
2 stops
SAT11:59 pmSan Antonio
Jun 30
SAT6:01 amSan Antonio
10h 36m
2 stops
IDA3:37 pmIdaho Falls Fanning Field
$994

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 June 14, 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

Cheapest round-trip
Quickest round-trip

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 7/30

7:00 pm-12:26 am

1 stop4h 26m

San Antonio

Sun 8/2

6:30 am-10:43 am

1 stop5h 13m

$329

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 7/30

3:22 pm-11:54 pm

2 stops7h 32m

San Antonio

Sun 8/2

6:30 am-10:43 am

1 stop5h 13m

$334

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 11/12

6:00 am-5:44 pm

2 stops10h 44m

San Antonio

Mon 11/16

12:50 pm-10:19 pm

2 stops10h 29m

$339

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 7/30

7:00 pm-12:26 am

1 stop4h 26m

San Antonio

Sun 8/2

12:39 pm-6:18 pm

1 stop6h 39m

$354

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 7/9

6:00 am-2:53 pm

2 stops7h 53m

San Antonio

Wed 7/15

6:30 am-10:43 am

1 stop5h 13m

$389

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 7/9

2:30 pm-8:54 pm

1 stop5h 24m

San Antonio

Wed 7/15

5:40 am-9:50 am

1 stop5h 10m

$414

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Wed 9/23

4:04 pm-11:57 pm

1 stop6h 53m

San Antonio

Sat 9/26

5:30 am-9:53 am

1 stop5h 23m

$419

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Wed 9/23

4:04 pm-11:57 pm

1 stop6h 53m

San Antonio

Sat 9/26

5:30 am-3:24 pm

2 stops10h 54m

$424

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 7/16

6:00 am-1:36 pm

1 stop6h 36m

San Antonio

Mon 7/20

6:03 pm-10:32 pm

1 stop5h 29m

$428

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Thu 7/9

2:30 pm-10:42 pm

2 stops7h 12m

San Antonio

Wed 7/15

5:40 am-9:50 am

1 stop5h 10m

$438

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 typical price of a round-trip flight between Idaho Falls and San Antonio?

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from Idaho Falls during April instead. Flights to San Antonio in April, while not as cheap as those in August, still average around $368.

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

4h 26m

Direct flights

None
The fastest flight from Idaho Falls to San Antonio takes 4h 26m
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

Frequently asked questions about flying from Idaho Falls to San Antonio

  • 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 4h 26m.

  • 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 $308Free CancellationRating
7.9
8,403 reviews
Search Delta flights
United AirlinesPriceFrom $362Free CancellationRating
7.4
9,818 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
Pleasanton
Boerne
Schertz

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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