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Cheap flights from San Antonio to Idaho Falls from $356

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Idaho Falls departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Antonio to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:35 am - 10:47 am
SAT
-
IDA
5h 12m
1 stop
Delta Logo
6:00 am - 1:37 pm
IDA
-
SAT
6h 37m
1 stop
$474Delta
Thu, May 21 - Tue, May 26
Delta Logo
7:35 am - 12:22 pm
SAT
-
IDA
5h 47m
1 stop
Delta Logo
6:55 pm - 12:16 am
IDA
-
SAT
4h 21m
1 stop
$499Delta
Thu, Mar 5 - Sun, Mar 8
United Airlines Logo
4:40 pm - 9:06 pm
SAT
-
IDA
5h 26m
1 stop
United Airlines Logo
5:30 pm - 11:32 pm
IDA
-
SAT
5h 02m
1 stop
$535United Airlines
Fri, Mar 13 - Mon, Mar 16
United Airlines Logo
5:47 am - 9:56 am
SAT
-
IDA
5h 09m
1 stop
United Airlines Logo
2:35 pm - 11:32 pm
IDA
-
SAT
7h 57m
1 stop
$539United Airlines
Fri, Mar 6 - Tue, Mar 10
United Airlines Logo
8:53 am - 1:25 pm
SAT
-
IDA
5h 32m
1 stop
United Airlines Logo
10:35 am - 10:42 pm
IDA
-
SAT
11h 07m
2 stops
$540United Airlines
Thu, May 21 - Tue, May 26
Delta Logo
1:13 pm - 5:49 pm
SAT
-
IDA
5h 36m
1 stop
Delta Logo
6:35 pm - 12:41 am
IDA
-
SAT
5h 06m
1 stop
$544Delta
Thu, Feb 26 - Sun, Mar 1
Delta Logo
5:59 pm - 10:16 pm
SAT
-
IDA
5h 17m
1 stop
Delta Logo
6:55 pm - 12:16 am
IDA
-
SAT
4h 21m
1 stop
$545Delta
Mon, Mar 9 - Tue, Mar 10
Delta Logo
5:59 pm - 10:16 pm
SAT
-
IDA
5h 17m
1 stop
Delta Logo
1:10 pm - 11:29 pm
IDA
-
SAT
9h 19m
2 stops
$550Delta
Mon, Mar 9 - Tue, Mar 10
Delta Logo
6:35 am - 10:47 am
SAT
-
IDA
5h 12m
1 stop
Delta Logo
11:30 am - 5:05 pm
IDA
-
SAT
4h 35m
1 stop
$564Delta
Thu, May 21 - Tue, May 26
Delta Logo
6:35 am - 10:47 am
SAT
-
IDA
5h 12m
1 stop
Delta Logo
11:30 am - 12:44 am
IDA
-
SAT
12h 14m
2 stops
$569Delta
Thu, May 21 - Tue, May 26

Delta flights from San Antonio to Idaho Falls

Our best Delta deals on San Antonio to Idaho Falls flight tickets
Delta
May 21
SAT6:35 amSan Antonio
5h 12m
1 stop
IDA10:47 amIdaho Falls Fanning Field
May 26
IDA6:00 amIdaho Falls Fanning Field
6h 37m
1 stop
SAT1:37 pmSan Antonio
$474
Delta
Mar 5
SAT7:35 amSan Antonio
5h 47m
1 stop
IDA12:22 pmIdaho Falls Fanning Field
Mar 8
IDA6:55 pmIdaho Falls Fanning Field
4h 21m
1 stop
SAT12:16 amSan Antonio
$499
Delta
Feb 26
SAT1:13 pmSan Antonio
5h 36m
1 stop
IDA5:49 pmIdaho Falls Fanning Field
Mar 1
IDA6:35 pmIdaho Falls Fanning Field
5h 06m
1 stop
SAT12:41 amSan Antonio
$544

Alaska Airlines flights from San Antonio to Idaho Falls

Our best Alaska Airlines deals on San Antonio to Idaho Falls flight tickets
Alaska Airlines
May 22
SAT5:57 pmSan Antonio
22h 29m
1 stop
IDA3:26 pmIdaho Falls Fanning Field
May 26
IDA1:54 pmIdaho Falls Fanning Field
14h 46m
1 stop
SAT5:40 amSan Antonio
$525
Alaska Airlines
Jun 17
SAT7:00 amSan Antonio
9h 40m
1 stop
IDA3:40 pmIdaho Falls Fanning Field
Jun 22
IDA4:14 pmIdaho Falls Fanning Field
11h 59m
2 stops
SAT5:13 amSan Antonio
$566
Alaska Airlines
Feb 24
SAT1:36 pmSan Antonio
28h 07m
2 stops
IDA4:43 pmIdaho Falls Fanning Field
Feb 26
IDA5:20 pmIdaho Falls Fanning Field
20h 51m
2 stops
SAT3:11 pmSan Antonio
$610

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Idaho Falls 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 February 22, 2026.
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

Thu 5/21

6:35 am-10:47 am

1 stop5h 12m

Idaho Falls Fanning Field

Tue 5/26

6:00 am-1:37 pm

1 stop6h 37m

$474

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Thu 3/5

7:35 am-12:22 pm

1 stop5h 47m

Idaho Falls Fanning Field

Sun 3/8

6:55 pm-12:16 am

1 stop4h 21m

$499

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Fri 3/13

4:40 pm-9:06 pm

1 stop5h 26m

Idaho Falls Fanning Field

Mon 3/16

5:30 pm-11:32 pm

1 stop5h 02m

$535

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Fri 3/6

5:47 am-9:56 am

1 stop5h 09m

Idaho Falls Fanning Field

Tue 3/10

2:35 pm-11:32 pm

1 stop7h 57m

$539

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Thu 5/21

8:53 am-1:25 pm

1 stop5h 32m

Idaho Falls Fanning Field

Tue 5/26

10:35 am-10:42 pm

2 stops11h 07m

$540

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Thu 2/26

1:13 pm-5:49 pm

1 stop5h 36m

Idaho Falls Fanning Field

Sun 3/1

6:35 pm-12:41 am

1 stop5h 06m

$544

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Mon 3/9

5:59 pm-10:16 pm

1 stop5h 17m

Idaho Falls Fanning Field

Tue 3/10

6:55 pm-12:16 am

1 stop4h 21m

$545

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Mon 3/9

5:59 pm-10:16 pm

1 stop5h 17m

Idaho Falls Fanning Field

Tue 3/10

1:10 pm-11:29 pm

2 stops9h 19m

$550

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Thu 5/21

6:35 am-10:47 am

1 stop5h 12m

Idaho Falls Fanning Field

Tue 5/26

11:30 am-5:05 pm

1 stop4h 35m

$564

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Thu 5/21

6:35 am-10:47 am

1 stop5h 12m

Idaho Falls Fanning Field

Tue 5/26

11:30 am-12:44 am

2 stops12h 14m

$569

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Idaho Falls from

How to get the cheapest flight ticket from San Antonio to Idaho Falls

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 airline that flies from San Antonio to Idaho Falls Fanning Field?

United Airlines is the most popular carrier operating from San Antonio to Idaho Falls Fanning Field

What airlines fly to Idaho Falls?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Idaho Falls from San Antonio according to our data. United Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Idaho Falls. Keep in mind that there are 3 different airlines that fly to Idaho Falls on a routine basis, so you have a few additional options to choose from.

When to book flights from San Antonio to Idaho Falls

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

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

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

Fastest flight time

5h 09m

Direct flights

None
The fastest flight from San Antonio to Idaho Falls takes 5h 09m
There are no direct flights from San Antonio to Idaho Falls. There are no popular flight routes from San Antonio to Idaho Falls.
Search flight deals

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

    Idaho Falls Fanning Field is 1223.6 mi away from San Antonio. A reasonable flight in good conditions will take 5h 09m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The necessary travel and health documents for your Idaho Falls Fanning Field 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 San Antonio to Idaho Falls?

Best airlines flying from San Antonio to Idaho Falls

Compare and see reviews for airlines that fly from San Antonio to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $357Free CancellationRating
7.4
9,341 reviews
Search United Airlines flights
DeltaPriceFrom $370Free CancellationRating
7.9
8,241 reviews
Search Delta flights

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

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

It is quick and easy to find San Antonio to Idaho Falls flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho Falls that suits you.

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

All flight searches from San Antonio to Idaho Falls on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Idaho Falls from San Antonio.

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

If you are not ready to book a flight from San Antonio to Idaho Falls now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho Falls and let you know when they change.

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