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Cheap flights from San Antonio to Idaho from $183

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 departing on 1/10. 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

Cheap round-trip flights

Delta Logo
7:30 am - 12:01 pmSAT-GEG
6h 31m1 stop
Delta Logo
4:50 pm - 12:31 amGEG-SAT
5h 41m1 stop
$271Delta
Find Deal
Tue, Oct 14 - Wed, Oct 15
Alaska Airlines Logo
6:32 am - 12:36 pmSAT-BOI
7h 04m1 stop
Alaska Airlines Logo
11:43 am - 12:05 amBOI-SAT
11h 22m1 stop
$290Alaska Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
United Airlines Logo
8:35 am - 1:29 pmSAT-BOI
5h 54m1 stop
United Airlines Logo
6:20 am - 4:58 pmBOI-SAT
9h 38m2 stops
$296United Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 4
Multiple Airlines Logo
7:00 am - 8:18 pmSAT-GEG
15h 18m1 stop
Multiple Airlines Logo
9:08 pm - 5:10 pmGEG-SAT
18h 02m1 stop
$315Multiple Airlines
Find Deal
Thu, Oct 16 - Sun, Oct 19
Southwest Logo
8:25 pm - 11:50 pmSAT-GEG
5h 25m1 stop
Southwest Logo
10:20 am - 9:55 pmGEG-SAT
9h 35m2 stops
$316Southwest
Find Deal
Thu, Oct 30 - Tue, Nov 4
Multiple Airlines Logo
5:32 pm - 11:08 amSAT-GEG
19h 36m1 stop
Multiple Airlines Logo
9:08 pm - 5:10 pmGEG-SAT
18h 02m1 stop
$318Multiple Airlines
Find Deal
Sat, Oct 11 - Thu, Oct 16
Southwest Logo
5:45 am - 9:35 amSAT-GEG
5h 50m1 stop
Southwest Logo
7:40 am - 4:45 pmGEG-SAT
7h 05m1 stop
$355Southwest
Find Deal
Tue, Oct 14 - Sat, Oct 18
American Airlines Logo
7:58 am - 12:43 pmSAT-JAC
5h 45m1 stop
American Airlines Logo
1:11 pm - 9:26 pmJAC-SAT
7h 15m1 stop
$383American Airlines
Find Deal
Wed, Oct 22 - Mon, Oct 27
American Airlines Logo
2:32 pm - 9:48 pmSAT-IDA
8h 16m1 stop
American Airlines Logo
12:55 pm - 9:48 pmIDA-SAT
7h 53m1 stop
$383American Airlines
Find Deal
Sat, Oct 18 - Sat, Oct 25
United Airlines Logo
5:45 pm - 11:44 pmSAT-BOI
6h 59m1 stop
United Airlines Logo
6:20 am - 1:06 pmBOI-SAT
5h 46m1 stop
$439United Airlines
Find Deal
Fri, Dec 5 - Tue, Dec 9

Alaska Airlines flights from San Antonio to Idaho

Our best Alaska Airlines deals on San Antonio to Idaho flight tickets
Alaska Airlines
Nov 6
SAT6:32 amSan Antonio
7h 04m
1 stop
BOI12:36 pmBoise Air Term. Gowen Fld
Nov 10
BOI11:43 amBoise Air Term. Gowen Fld
11h 22m
1 stop
SAT12:05 amSan Antonio
$290
Find similar
Alaska Airlines
Oct 20
SAT6:40 amSan Antonio
8h 56m
1 stop
BOI2:36 pmBoise Air Term. Gowen Fld
Oct 27
BOI8:50 pmBoise Air Term. Gowen Fld
20h 05m
1 stop
SAT5:55 pmSan Antonio
$318
Find similar
Alaska Airlines
Oct 17
SAT7:56 pmSan Antonio
6h 31m
1 stop
GEG12:27 amSpokane
Oct 21
GEG3:40 pmSpokane
6h 24m
1 stop
SAT12:04 amSan Antonio
$321
Find similar

Delta flights from San Antonio to Idaho

Our best Delta deals on San Antonio to Idaho flight tickets
Delta
Oct 14
SAT7:30 amSan Antonio
6h 31m
1 stop
GEG12:01 pmSpokane
Oct 15
GEG4:50 pmSpokane
5h 41m
1 stop
SAT12:31 amSan Antonio
$271
Find similar
Delta
Nov 1
SAT12:40 pmSan Antonio
7h 27m
1 stop
BOI7:07 pmBoise Air Term. Gowen Fld
Nov 4
BOI1:39 pmBoise Air Term. Gowen Fld
9h 41m
1 stop
SAT12:20 amSan Antonio
$291
Find similar
Delta
Oct 13
SAT7:30 amSan Antonio
6h 31m
1 stop
GEG12:01 pmSpokane
Oct 21
GEG6:10 amSpokane
16h 21m
2 stops
SAT12:31 amSan Antonio
$292
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Idaho 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 September 23, 2025.
Use the filters below to find and compare flights from San Antonio to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Tue 10/14

7:30 am-12:01 pm

1 stop6h 31m

Spokane

Wed 10/15

4:50 pm-12:31 am

1 stop5h 41m

$271

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 11/6

6:32 am-12:36 pm

1 stop7h 04m

Boise Air Term. Gowen Fld

Mon 11/10

11:43 am-12:05 am

1 stop11h 22m

$290

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Sat 11/1

8:35 am-1:29 pm

1 stop5h 54m

Boise Air Term. Gowen Fld

Tue 11/4

6:20 am-4:58 pm

2 stops9h 38m

$296

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Thu 10/16

7:00 am-8:18 pm

1 stop15h 18m

Spokane

Sun 10/19

9:08 pm-5:10 pm

1 stop18h 02m

$315

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Thu 10/30

8:25 pm-11:50 pm

1 stop5h 25m

Spokane

Tue 11/4

10:20 am-9:55 pm

2 stops9h 35m

$316

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sat 10/11

5:32 pm-11:08 am

1 stop19h 36m

Spokane

Thu 10/16

9:08 pm-5:10 pm

1 stop18h 02m

$318

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Tue 10/14

5:45 am-9:35 am

1 stop5h 50m

Spokane

Sat 10/18

7:40 am-4:45 pm

1 stop7h 05m

$355

San AntonioJackson

SAT - JAC

SATJAC

San Antonio

Wed 10/22

7:58 am-12:43 pm

1 stop5h 45m

Jackson Hole

Mon 10/27

1:11 pm-9:26 pm

1 stop7h 15m

$383

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sat 10/18

2:32 pm-9:48 pm

1 stop8h 16m

Idaho Falls Fanning Field

Sat 10/25

12:55 pm-9:48 pm

1 stop7h 53m

$383

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Fri 12/5

5:45 pm-11:44 pm

1 stop6h 59m

Boise Air Term. Gowen Fld

Tue 12/9

6:20 am-1:06 pm

1 stop5h 46m

$439

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 from

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

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?

In general, August is the cheapest month to fly from San Antonio to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $286. If you don’t want to visit Idaho in August, then you should wait until January to fly from San Antonio, when ticket prices are also cheap, with an average price of $308.

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

Our data shows that Wednesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $310. On the other hand, Sunday is the most expensive day to depart from San Antonio because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $505.

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

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from San Antonio to Idaho at noon for as low as $369. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $466 per ticket.

Can stopping save me money on San Antonio to Idaho flights?

You could potentially save up to 32% on your flight if you consider stops on a San Antonio to Idaho flight.

Cheap San Antonio to Idaho flight deals and tips

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

Direct flights

None
There are no direct flights from San Antonio to Idaho. There are no popular flight routes from San Antonio to Idaho.
Search flight deals

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

    Prices for flights from San Antonio Airport to Idaho are updated daily.

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

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

    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 San Antonio Airport to Idaho.

  • What documentation or ID do you need to fly to Idaho?

    The necessary travel and health documents for your Idaho 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.

Best airlines flying from San Antonio to Idaho

Compare and see reviews for airlines that fly from San Antonio to Idaho with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $79Free CancellationRating
6.3
8,041 reviews
Search Spirit Airlines flights
DeltaPriceFrom $204Free CancellationRating
7.9
7,974 reviews
Search Delta flights
American AirlinesPriceFrom $244Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $286Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Antonio to Idaho. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Idaho from San Antonio which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Idaho from San Antonio. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from San Antonio to Idaho 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 and let you know when they change.

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