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Cheap flights from San Antonio to Idaho Falls from $347

This is the cheapest round-trip 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 10/21. 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 San Antonio to Idaho Falls

Cheap round-trip flights

Alaska Airlines Logo
7:56 pm - 3:38 pmSAT-IDA
20h 42m1 stop
Alaska Airlines Logo
3:50 pm - 12:05 amIDA-SAT
7h 15m1 stop
$347Alaska Airlines
Find Deal
Tue, Oct 21 - Mon, Oct 27
Alaska Airlines Logo
6:27 am - 10:39 pmSAT-IDA
17h 12m1 stop
Alaska Airlines Logo
6:13 am - 6:57 pmIDA-SAT
11h 44m1 stop
$362Alaska Airlines
Find Deal
Sat, Sep 27 - Wed, Oct 1
Hawaiian Airlines Logo
6:40 am - 3:38 pmSAT-IDA
9h 58m1 stop
Hawaiian Airlines Logo
3:50 pm - 12:05 amIDA-SAT
7h 15m1 stop
$367Hawaiian Airlines
Find Deal
Thu, Oct 23 - Sun, Oct 26
Delta Logo
12:15 pm - 10:25 pmSAT-IDA
11h 10m2 stops
Delta Logo
6:51 pm - 12:19 amIDA-SAT
4h 28m1 stop
$370Delta
Find Deal
Sat, Sep 27 - Wed, Oct 1
Delta Logo
12:15 pm - 10:25 pmSAT-IDA
11h 10m2 stops
Delta Logo
6:51 pm - 12:19 amIDA-SAT
4h 28m1 stop
$377Delta
Find Deal
Sat, Sep 27 - Wed, Oct 1
Delta Logo
12:15 pm - 10:25 pmSAT-IDA
11h 10m2 stops
Delta Logo
6:51 pm - 12:19 amIDA-SAT
4h 28m1 stop
$390Delta
Find Deal
Sat, Sep 27 - Wed, Oct 1
American Airlines Logo
5:00 am - 12:25 pmSAT-IDA
8h 25m1 stop
American Airlines Logo
1:11 pm - 11:43 pmIDA-SAT
9h 32m2 stops
$400American Airlines
Find Deal
Tue, Oct 21 - Mon, Oct 27
United Airlines Logo
4:30 pm - 10:51 pmSAT-IDA
7h 21m1 stop
United Airlines Logo
10:56 am - 4:51 pmIDA-SAT
4h 55m1 stop
$423United Airlines
Find Deal
Fri, Aug 15 - Fri, Aug 22
Delta Logo
8:00 am - 6:11 pmSAT-IDA
11h 11m2 stops
Delta Logo
1:06 pm - 11:52 pmIDA-SAT
9h 46m2 stops
$426Delta
Find Deal
Sat, Sep 27 - Wed, Oct 1
United Airlines Logo
2:18 pm - 10:51 pmSAT-IDA
9h 33m2 stops
United Airlines Logo
10:56 am - 4:51 pmIDA-SAT
4h 55m1 stop
$428United Airlines
Find Deal
Fri, Aug 15 - Fri, Aug 22

Delta flights from San Antonio to Idaho Falls

Our best Delta deals on San Antonio to Idaho Falls flight tickets
Delta
Sep 27
SAT12:15 pmSan Antonio
11h 10m
2 stops
IDA10:25 pmIdaho Falls Fanning Field
Oct 1
IDA6:51 pmIdaho Falls Fanning Field
4h 28m
1 stop
SAT12:19 amSan Antonio
$370
Find similar
Delta
Sep 27
SAT12:15 pmSan Antonio
11h 10m
2 stops
IDA10:25 pmIdaho Falls Fanning Field
Oct 1
IDA6:51 pmIdaho Falls Fanning Field
4h 28m
1 stop
SAT12:19 amSan Antonio
$377
Find similar
Delta
Sep 27
SAT12:15 pmSan Antonio
11h 10m
2 stops
IDA10:25 pmIdaho Falls Fanning Field
Oct 1
IDA6:51 pmIdaho Falls Fanning Field
4h 28m
1 stop
SAT12:19 amSan Antonio
$390
Find similar

Alaska Airlines flights from San Antonio to Idaho Falls

Our best Alaska Airlines deals on San Antonio to Idaho Falls flight tickets
Alaska Airlines
Oct 21
SAT7:56 pmSan Antonio
20h 42m
1 stop
IDA3:38 pmIdaho Falls Fanning Field
Oct 27
IDA3:50 pmIdaho Falls Fanning Field
7h 15m
1 stop
SAT12:05 amSan Antonio
$347
Find similar
Alaska Airlines
Sep 27
SAT6:27 amSan Antonio
17h 12m
1 stop
IDA10:39 pmIdaho Falls Fanning Field
Oct 1
IDA6:13 amIdaho Falls Fanning Field
11h 44m
1 stop
SAT6:57 pmSan Antonio
$362
Find similar
Alaska Airlines
Oct 21
SAT10:11 amSan Antonio
13h 27m
2 stops
IDA10:38 pmIdaho Falls Fanning Field
Oct 27
IDA3:50 pmIdaho Falls Fanning Field
20h 02m
2 stops
SAT12:52 pmSan Antonio
$539
Find similar

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 July 31, 2025.
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

Tue 10/21

7:56 pm-3:38 pm

1 stop20h 42m

Idaho Falls Fanning Field

Mon 10/27

3:50 pm-12:05 am

1 stop7h 15m

$347

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sat 9/27

6:27 am-10:39 pm

1 stop17h 12m

Idaho Falls Fanning Field

Wed 10/1

6:13 am-6:57 pm

1 stop11h 44m

$362

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Thu 10/23

6:40 am-3:38 pm

1 stop9h 58m

Idaho Falls Fanning Field

Sun 10/26

3:50 pm-12:05 am

1 stop7h 15m

$367

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sat 9/27

12:15 pm-10:25 pm

2 stops11h 10m

Idaho Falls Fanning Field

Wed 10/1

6:51 pm-12:19 am

1 stop4h 28m

$370

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sat 9/27

12:15 pm-10:25 pm

2 stops11h 10m

Idaho Falls Fanning Field

Wed 10/1

6:51 pm-12:19 am

1 stop4h 28m

$377

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sat 9/27

12:15 pm-10:25 pm

2 stops11h 10m

Idaho Falls Fanning Field

Wed 10/1

6:51 pm-12:19 am

1 stop4h 28m

$390

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 10/21

5:00 am-12:25 pm

1 stop8h 25m

Idaho Falls Fanning Field

Mon 10/27

1:11 pm-11:43 pm

2 stops9h 32m

$400

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Fri 8/15

4:30 pm-10:51 pm

1 stop7h 21m

Idaho Falls Fanning Field

Fri 8/22

10:56 am-4:51 pm

1 stop4h 55m

$423

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sat 9/27

8:00 am-6:11 pm

2 stops11h 11m

Idaho Falls Fanning Field

Wed 10/1

1:06 pm-11:52 pm

2 stops9h 46m

$426

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Fri 8/15

2:18 pm-10:51 pm

2 stops9h 33m

Idaho Falls Fanning Field

Fri 8/22

10:56 am-4:51 pm

1 stop4h 55m

$428

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $431.

What is the cheapest day to depart on your flight to Idaho Falls?

Our data shows that Tuesday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $387. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Monday is $647.

What is the cheapest time of day to depart on your flight to Idaho Falls?

Our most recent data shows that the best time of day to fly to Idaho Falls is in the morning. Flights from San Antonio to Idaho Falls during this time can be as low as $478. Try not to purchase tickets at noon because they tend to be around $541. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Best Price Found

$347

Fastest flight time

5h 08m

Direct flights

None

Airports in Idaho Falls

1 airport
The best flight deal from San Antonio to Idaho Falls found on momondo in the last 72 hours is $347
The fastest flight from San Antonio to Idaho Falls takes 5h 08m
There are no direct flights from San Antonio to Idaho Falls. Popular non-direct route for this connection is San Antonio Airport - Idaho Falls Fanning Field Airport.
There is 1 airport near Idaho Falls: Idaho Falls Fanning Field (IDA)
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 08m.

  • 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 $314Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
DeltaPriceFrom $371Free CancellationRating
8.0
7,981 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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