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Cheap flights from San Antonio to Idaho from $64

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 3/4. 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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
6:06 pm - 9:40 am
SAT
-
BOI
16h 34m
1 stop
Alaska Airlines Logo
6:00 pm - 5:10 pm
BOI
-
SAT
22h 10m
1 stop
$197Alaska Airlines
Tue, Feb 24 - Tue, Mar 3
United Airlines Logo
5:47 am - 10:06 am
SAT
-
BOI
5h 19m
1 stop
United Airlines Logo
5:00 am - 1:00 pm
BOI
-
SAT
7h 00m
1 stop
$237United Airlines
Tue, Mar 24 - Tue, Mar 31
United Airlines Logo
4:45 pm - 9:32 pm
SAT
-
BOI
5h 47m
1 stop
United Airlines Logo
5:00 am - 1:08 pm
BOI
-
SAT
7h 08m
2 stops
$242United Airlines
Tue, Feb 24 - Tue, Mar 3
Frontier Logo
7:56 pm - 2:16 pm
SAT
-
GEG
20h 20m
1 stop
Frontier Logo
8:12 pm - 8:45 am
GEG
-
SAT
10h 33m
1 stop
$272Frontier
Sat, Feb 14 - Sun, Feb 15
Frontier Logo
6:45 am - 10:21 am
SAT
-
GEG
5h 36m
1 stop
Frontier Logo
11:06 am - 12:19 am
GEG
-
SAT
11h 13m
1 stop
$281Frontier
Thu, Apr 9 - Sun, Apr 12
Delta Logo
7:00 am - 5:49 pm
SAT
-
IDA
11h 49m
2 stops
Delta Logo
1:10 pm - 9:28 pm
IDA
-
SAT
7h 18m
1 stop
$294Delta
Tue, Mar 3 - Sat, Mar 7
Delta Logo
5:30 am - 1:25 pm
SAT
-
JAC
8h 55m
1 stop
Delta Logo
5:50 pm - 12:16 am
JAC
-
SAT
5h 26m
1 stop
$299Delta
Mon, Mar 2 - Mon, Mar 9
American Airlines Logo
5:17 am - 11:44 am
SAT
-
GEG
8h 27m
1 stop
American Airlines Logo
3:10 pm - 11:39 pm
GEG
-
SAT
6h 29m
1 stop
$312American Airlines
Sun, Mar 1 - Tue, Mar 10
Southwest Logo
8:25 pm - 12:40 am
SAT
-
GEG
6h 15m
1 stop
Southwest Logo
6:00 am - 5:30 pm
GEG
-
SAT
9h 30m
2 stops
$379Southwest
Sun, Mar 1 - Tue, Mar 10
Southwest Logo
4:25 pm - 11:25 pm
SAT
-
GEG
9h 00m
2 stops
Southwest Logo
2:30 pm - 1:10 am
GEG
-
SAT
8h 40m
2 stops
$395Southwest
Wed, Apr 8 - Sun, Apr 12

Delta flights from San Antonio to Idaho

Our best Delta deals on San Antonio to Idaho flight tickets
Delta
Mar 3
SAT7:00 amSan Antonio
11h 49m
2 stops
IDA5:49 pmIdaho Falls Fanning Field
Mar 7
IDA1:10 pmIdaho Falls Fanning Field
7h 18m
1 stop
SAT9:28 pmSan Antonio
$294
Delta
Mar 2
SAT5:30 amSan Antonio
8h 55m
1 stop
JAC1:25 pmJackson Hole
Mar 9
JAC5:50 pmJackson Hole
5h 26m
1 stop
SAT12:16 amSan Antonio
$299
Delta
Mar 2
SAT7:00 amSan Antonio
10h 19m
2 stops
JAC4:19 pmJackson Hole
Mar 9
JAC5:50 pmJackson Hole
5h 26m
1 stop
SAT12:16 amSan Antonio
$304

United Airlines flights from San Antonio to Idaho

Our best United Airlines deals on San Antonio to Idaho flight tickets
United Airlines
Mar 24
SAT5:47 amSan Antonio
5h 19m
1 stop
BOI10:06 amBoise Air Term. Gowen Fld
Mar 31
BOI5:00 amBoise Air Term. Gowen Fld
7h 00m
1 stop
SAT1:00 pmSan Antonio
$237
United Airlines
Feb 24
SAT4:45 pmSan Antonio
5h 47m
1 stop
BOI9:32 pmBoise Air Term. Gowen Fld
Mar 3
BOI5:00 amBoise Air Term. Gowen Fld
7h 08m
2 stops
SAT1:08 pmSan Antonio
$242
United Airlines
Feb 24
SAT2:10 pmSan Antonio
8h 22m
2 stops
BOI9:32 pmBoise Air Term. Gowen Fld
Mar 3
BOI5:00 amBoise Air Term. Gowen Fld
7h 08m
2 stops
SAT1:08 pmSan Antonio
$290

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 February 4, 2026.
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 AntonioBoise

SAT - BOI

SATBOI

San Antonio

Tue 2/24

6:06 pm-9:40 am

1 stop16h 34m

Boise Air Term. Gowen Fld

Tue 3/3

6:00 pm-5:10 pm

1 stop22h 10m

$197

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Tue 3/24

5:47 am-10:06 am

1 stop5h 19m

Boise Air Term. Gowen Fld

Tue 3/31

5:00 am-1:00 pm

1 stop7h 00m

$237

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Tue 2/24

4:45 pm-9:32 pm

1 stop5h 47m

Boise Air Term. Gowen Fld

Tue 3/3

5:00 am-1:08 pm

2 stops7h 08m

$242

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sat 2/14

7:56 pm-2:16 pm

1 stop20h 20m

Spokane

Sun 2/15

8:12 pm-8:45 am

1 stop10h 33m

$272

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Thu 4/9

6:45 am-10:21 am

1 stop5h 36m

Spokane

Sun 4/12

11:06 am-12:19 am

1 stop11h 13m

$281

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Tue 3/3

7:00 am-5:49 pm

2 stops11h 49m

Idaho Falls Fanning Field

Sat 3/7

1:10 pm-9:28 pm

1 stop7h 18m

$294

San AntonioJackson

SAT - JAC

SATJAC

San Antonio

Mon 3/2

5:30 am-1:25 pm

1 stop8h 55m

Jackson Hole

Mon 3/9

5:50 pm-12:16 am

1 stop5h 26m

$299

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sun 3/1

5:17 am-11:44 am

1 stop8h 27m

Spokane

Tue 3/10

3:10 pm-11:39 pm

1 stop6h 29m

$312

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sun 3/1

8:25 pm-12:40 am

1 stop6h 15m

Spokane

Tue 3/10

6:00 am-5:30 pm

2 stops9h 30m

$379

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Wed 4/8

4:25 pm-11:25 pm

2 stops9h 00m

Spokane

Sun 4/12

2:30 pm-1:10 am

2 stops8h 40m

$395

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 September to fly from San Antonio, when ticket prices are also cheap, with an average price of $300.

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

You could potentially save up to 15% 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

Fastest flight time

4h 30m

Direct flights

None
The fastest flight from San Antonio to Idaho takes 4h 30m
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 $77Free CancellationRating
6.3
8,407 reviews
Search Spirit Airlines flights
DeltaPriceFrom $194Free CancellationRating
7.9
8,138 reviews
Search Delta flights
American AirlinesPriceFrom $244Free CancellationRating
7.2
11,216 reviews
Search American Airlines flights
SouthwestPriceFrom $262Free CancellationRating
8.0
4,272 reviews
Search Southwest flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
9,236 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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