Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Idaho Falls to San Antonio from $174

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 9/11. 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
1:05 pm - 9:06 pm
IDA
-
SAT
7h 01m
1 stop
Delta Logo
6:01 pm - 10:22 pm
SAT
-
IDA
5h 21m
1 stop
$339Delta
Sat, Sep 19 - Wed, Sep 23
Delta Logo
6:00 am - 1:40 pm
IDA
-
SAT
6h 40m
1 stop
Delta Logo
6:01 pm - 10:22 pm
SAT
-
IDA
5h 21m
1 stop
$339Delta
Fri, Sep 18 - Mon, Sep 21
Delta Logo
6:56 pm - 12:25 am
IDA
-
SAT
4h 29m
1 stop
Delta Logo
12:45 pm - 6:16 pm
SAT
-
IDA
6h 31m
1 stop
$339Delta
Fri, Dec 4 - Mon, Dec 7
Delta Logo
6:56 pm - 12:30 am
IDA
-
SAT
4h 34m
1 stop
Delta Logo
6:35 am - 12:22 pm
SAT
-
IDA
6h 47m
1 stop
$339Delta
Wed, Oct 14 - Sun, Oct 18
United Airlines Logo
4:04 pm - 11:57 pm
IDA
-
SAT
6h 53m
1 stop
United Airlines Logo
5:30 am - 9:51 am
SAT
-
IDA
5h 21m
1 stop
$409United Airlines
Tue, Aug 11 - Sat, Aug 15
United Airlines Logo
4:05 pm - 11:58 pm
IDA
-
SAT
6h 53m
1 stop
United Airlines Logo
9:00 am - 3:24 pm
SAT
-
IDA
7h 24m
1 stop
$449United Airlines
Fri, Sep 25 - Mon, Sep 28
United Airlines Logo
4:05 pm - 11:58 pm
IDA
-
SAT
6h 53m
1 stop
United Airlines Logo
5:30 am - 3:24 pm
SAT
-
IDA
10h 54m
2 stops
$454United Airlines
Fri, Sep 25 - Mon, Sep 28
American Airlines Logo
2:20 pm - 10:50 pm
IDA
-
SAT
7h 30m
1 stop
American Airlines Logo
5:00 am - 11:30 am
SAT
-
IDA
7h 30m
1 stop
$506American Airlines
Fri, Aug 14 - Mon, Aug 17
Alaska Airlines Logo
6:15 am - 6:38 pm
IDA
-
SAT
11h 23m
1 stop
Alaska Airlines Logo
12:55 pm - 10:39 pm
SAT
-
IDA
10h 44m
2 stops
$620Alaska Airlines
Mon, Dec 14 - Wed, Dec 16
Alaska Airlines Logo
4:03 pm - 6:38 pm
IDA
-
SAT
25h 35m
1 stop
Alaska Airlines Logo
7:37 pm - 11:45 pm
SAT
-
IDA
29h 08m
1 stop
$656Alaska Airlines
Mon, Dec 14 - Wed, Dec 16

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Alaska Airlines flights from Idaho Falls to San Antonio

Our best Alaska Airlines deals on Idaho Falls to San Antonio flight tickets
Alaska Airlines
Dec 14
IDA6:15 amIdaho Falls Fanning Field
11h 23m
1 stop
SAT6:38 pmSan Antonio
Dec 16
SAT12:55 pmSan Antonio
10h 44m
2 stops
IDA10:39 pmIdaho Falls Fanning Field
$620
Alaska Airlines
Dec 14
IDA4:03 pmIdaho Falls Fanning Field
25h 35m
1 stop
SAT6:38 pmSan Antonio
Dec 16
SAT7:37 pmSan Antonio
29h 08m
1 stop
IDA11:45 pmIdaho Falls Fanning Field
$656
Alaska Airlines
Oct 9
IDA3:57 pmIdaho Falls Fanning Field
23h 07m
2 stops
SAT4:04 pmSan Antonio
Oct 11
SAT4:34 pmSan Antonio
21h 47m
2 stops
IDA1:21 pmIdaho Falls Fanning Field
$680

Delta flights from Idaho Falls to San Antonio

Our best Delta deals on Idaho Falls to San Antonio flight tickets
Delta
Sep 18
IDA6:00 amIdaho Falls Fanning Field
6h 40m
1 stop
SAT1:40 pmSan Antonio
Sep 21
SAT6:01 pmSan Antonio
5h 21m
1 stop
IDA10:22 pmIdaho Falls Fanning Field
$339
Delta
Sep 18
IDA6:00 amIdaho Falls Fanning Field
7h 49m
2 stops
SAT2:49 pmSan Antonio
Sep 21
SAT6:01 pmSan Antonio
5h 21m
1 stop
IDA10:22 pmIdaho Falls Fanning Field
$344
Delta
Sep 18
IDA6:00 amIdaho Falls Fanning Field
7h 49m
2 stops
SAT2:49 pmSan Antonio
Sep 21
SAT7:20 amSan Antonio
11h 57m
2 stops
IDA6:17 pmIdaho Falls Fanning Field
$349

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 July 31, 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

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Sat 9/19

1:05 pm-9:06 pm

1 stop7h 01m

San Antonio

Wed 9/23

6:01 pm-10:22 pm

1 stop5h 21m

$339

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Fri 9/18

6:00 am-1:40 pm

1 stop6h 40m

San Antonio

Mon 9/21

6:01 pm-10:22 pm

1 stop5h 21m

$339
Quickest round-trip

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Fri 12/4

6:56 pm-12:25 am

1 stop4h 29m

San Antonio

Mon 12/7

12:45 pm-6:16 pm

1 stop6h 31m

$339

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Wed 10/14

6:56 pm-12:30 am

1 stop4h 34m

San Antonio

Sun 10/18

6:35 am-12:22 pm

1 stop6h 47m

$339

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Tue 8/11

4:04 pm-11:57 pm

1 stop6h 53m

San Antonio

Sat 8/15

5:30 am-9:51 am

1 stop5h 21m

$409

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Fri 9/25

4:05 pm-11:58 pm

1 stop6h 53m

San Antonio

Mon 9/28

9:00 am-3:24 pm

1 stop7h 24m

$449

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Fri 9/25

4:05 pm-11:58 pm

1 stop6h 53m

San Antonio

Mon 9/28

5:30 am-3:24 pm

2 stops10h 54m

$454

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Fri 8/14

2:20 pm-10:50 pm

1 stop7h 30m

San Antonio

Mon 8/17

5:00 am-11:30 am

1 stop7h 30m

$506

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Mon 12/14

6:15 am-6:38 pm

1 stop11h 23m

San Antonio

Wed 12/16

12:55 pm-10:39 pm

2 stops10h 44m

$620

Idaho FallsSan Antonio

IDA - SAT

IDASAT

Idaho Falls Fanning Field

Mon 12/14

4:03 pm-6:38 pm

1 stop25h 35m

San Antonio

Wed 12/16

7:37 pm-11:45 pm

1 stop29h 08m

$656

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

See travel insights to San Antonio from

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 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 34m

Direct flights

None
The fastest flight from Idaho Falls to San Antonio takes 4h 34m
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 34m.

  • 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
7.8
8,487 reviews
Search Delta flights
United AirlinesPriceFrom $362Free CancellationRating
7.4
10,046 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
Pleasanton
Kerrville
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.

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 8/30
Sun 9/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States