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Cheap flights from San Antonio to Idaho Falls from $186

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 11/27. 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.
Multiple Airlines Logo
6:22 pm - 5:57 pmSAT-IDA
24h 35m1 stop
Multiple Airlines Logo
7:58 pm - 1:17 pmIDA-SAT
16h 19m1 stop
$346Multiple Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 1
Multiple Airlines Logo
7:37 pm - 4:03 pmSAT-IDA
45h 26m2 stops
Multiple Airlines Logo
7:58 pm - 1:17 pmIDA-SAT
16h 19m1 stop
$356Multiple Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 1
Alaska Airlines Logo
7:00 am - 3:20 pmSAT-IDA
9h 20m1 stop
Alaska Airlines Logo
4:00 pm - 11:45 pmIDA-SAT
6h 45m1 stop
$391Alaska Airlines
Find Deal
Tue, Apr 28 - Sat, May 2
Alaska Airlines Logo
6:00 am - 11:59 pmSAT-IDA
18h 59m1 stop
Alaska Airlines Logo
5:07 pm - 5:59 pmIDA-SAT
23h 52m1 stop
$392Alaska Airlines
Find Deal
Fri, Dec 12 - Sat, Dec 13
Delta Logo
2:00 pm - 10:14 pmSAT-IDA
9h 14m2 stops
Delta Logo
6:50 pm - 12:44 amIDA-SAT
4h 54m1 stop
$397Delta
Find Deal
Tue, Apr 28 - Sat, May 2
Delta Logo
10:45 am - 10:14 pmSAT-IDA
12h 29m2 stops
Delta Logo
6:10 am - 5:16 pmIDA-SAT
10h 06m2 stops
$402Delta
Find Deal
Tue, Apr 28 - Sat, May 2
Delta Logo
8:00 am - 12:31 pmSAT-IDA
5h 31m1 stop
Delta Logo
6:45 pm - 12:45 amIDA-SAT
5h 00m1 stop
$411Delta
Find Deal
Thu, Mar 12 - Wed, Mar 18
United Airlines Logo
5:00 am - 1:34 pmSAT-IDA
9h 34m2 stops
United Airlines Logo
2:35 pm - 9:07 pmIDA-SAT
5h 32m1 stop
$466United Airlines
Find Deal
Thu, Mar 12 - Wed, Mar 18
United Airlines Logo
4:30 pm - 9:03 pmSAT-IDA
5h 33m1 stop
United Airlines Logo
10:50 am - 4:58 pmIDA-SAT
5h 08m1 stop
$556United Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
American Airlines Logo
6:00 pm - 12:46 pmSAT-IDA
19h 46m1 stop
American Airlines Logo
2:07 pm - 10:58 pmIDA-SAT
7h 51m1 stop
$625American Airlines
Find Deal
Mon, Dec 29 - Thu, Jan 8

Delta flights from San Antonio to Idaho Falls

Our best Delta deals on San Antonio to Idaho Falls flight tickets
Delta
Apr 28
SAT2:00 pmSan Antonio
9h 14m
2 stops
IDA10:14 pmIdaho Falls Fanning Field
May 2
IDA6:50 pmIdaho Falls Fanning Field
4h 54m
1 stop
SAT12:44 amSan Antonio
$397
Find similar
Delta
Apr 28
SAT10:45 amSan Antonio
12h 29m
2 stops
IDA10:14 pmIdaho Falls Fanning Field
May 2
IDA6:10 amIdaho Falls Fanning Field
10h 06m
2 stops
SAT5:16 pmSan Antonio
$402
Find similar
Delta
Mar 12
SAT8:00 amSan Antonio
5h 31m
1 stop
IDA12:31 pmIdaho Falls Fanning Field
Mar 18
IDA6:45 pmIdaho Falls Fanning Field
5h 00m
1 stop
SAT12:45 amSan Antonio
$411
Find similar

United Airlines flights from San Antonio to Idaho Falls

Our best United Airlines deals on San Antonio to Idaho Falls flight tickets
United Airlines
Mar 12
SAT5:00 amSan Antonio
9h 34m
2 stops
IDA1:34 pmIdaho Falls Fanning Field
Mar 18
IDA2:35 pmIdaho Falls Fanning Field
5h 32m
1 stop
SAT9:07 pmSan Antonio
$466
Find similar
United Airlines
Nov 19
SAT4:30 pmSan Antonio
5h 33m
1 stop
IDA9:03 pmIdaho Falls Fanning Field
Nov 23
IDA10:50 amIdaho Falls Fanning Field
5h 08m
1 stop
SAT4:58 pmSan Antonio
$556
Find similar
United Airlines
Nov 19
SAT4:30 pmSan Antonio
5h 33m
1 stop
IDA9:03 pmIdaho Falls Fanning Field
Nov 23
IDA2:45 pmIdaho Falls Fanning Field
7h 11m
2 stops
SAT10:56 pmSan Antonio
$561
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 November 5, 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

Mon 11/24

6:22 pm-5:57 pm

1 stop24h 35m

Idaho Falls Fanning Field

Mon 12/1

7:58 pm-1:17 pm

1 stop16h 19m

$346

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Mon 11/24

7:37 pm-4:03 pm

2 stops45h 26m

Idaho Falls Fanning Field

Mon 12/1

7:58 pm-1:17 pm

1 stop16h 19m

$356

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 4/28

7:00 am-3:20 pm

1 stop9h 20m

Idaho Falls Fanning Field

Sat 5/2

4:00 pm-11:45 pm

1 stop6h 45m

$391

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Fri 12/12

6:00 am-11:59 pm

1 stop18h 59m

Idaho Falls Fanning Field

Sat 12/13

5:07 pm-5:59 pm

1 stop23h 52m

$392

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 4/28

2:00 pm-10:14 pm

2 stops9h 14m

Idaho Falls Fanning Field

Sat 5/2

6:50 pm-12:44 am

1 stop4h 54m

$397

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 4/28

10:45 am-10:14 pm

2 stops12h 29m

Idaho Falls Fanning Field

Sat 5/2

6:10 am-5:16 pm

2 stops10h 06m

$402

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Thu 3/12

8:00 am-12:31 pm

1 stop5h 31m

Idaho Falls Fanning Field

Wed 3/18

6:45 pm-12:45 am

1 stop5h 00m

$411

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Thu 3/12

5:00 am-1:34 pm

2 stops9h 34m

Idaho Falls Fanning Field

Wed 3/18

2:35 pm-9:07 pm

1 stop5h 32m

$466

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Wed 11/19

4:30 pm-9:03 pm

1 stop5h 33m

Idaho Falls Fanning Field

Sun 11/23

10:50 am-4:58 pm

1 stop5h 08m

$556

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Mon 12/29

6:00 pm-12:46 pm

1 stop19h 46m

Idaho Falls Fanning Field

Thu 1/8

2:07 pm-10:58 pm

1 stop7h 51m

$625

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $420.

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

Direct flights

None
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 31m.

  • 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
DeltaPriceFrom $370Free CancellationRating
7.9
8,004 reviews
Search Delta flights
United AirlinesPriceFrom $375Free CancellationRating
7.4
9,002 reviews
Search United Airlines 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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