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Cheap flights from Boise to San Antonio from $142

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to San Antonio departing on 3/2. 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 Boise to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:38 pm - 12:17 am
BOI
-
SAT
10h 39m1 stop
Frontier Logo
6:45 am - 11:43 am
SAT
-
BOI
5h 58m1 stop
$208Frontier
Sun, Dec 21 - Thu, Jan 1
Alaska Airlines Logo
9:55 am - 6:37 pm
BOI
-
SAT
7h 42m1 stop
Alaska Airlines Logo
6:46 pm - 10:52 am
SAT
-
BOI
17h 06m1 stop
$293Alaska Airlines
Tue, Jan 6 - Tue, Jan 13
Delta Logo
5:40 am - 5:25 pm
BOI
-
SAT
10h 45m2 stops
Delta Logo
1:03 pm - 9:58 pm
SAT
-
BOI
9h 55m2 stops
$294Delta
Tue, Jan 6 - Tue, Jan 13
American Airlines Logo
12:37 pm - 8:04 pm
BOI
-
SAT
6h 27m1 stop
American Airlines Logo
6:14 am - 2:22 pm
SAT
-
BOI
9h 08m2 stops
$299American Airlines
Tue, Jan 6 - Tue, Jan 13
Delta Logo
12:51 pm - 9:28 pm
BOI
-
SAT
7h 37m1 stop
Delta Logo
5:30 am - 12:28 pm
SAT
-
BOI
7h 58m1 stop
$302Delta
Sat, Feb 14 - Fri, Feb 20
Alaska Airlines Logo
6:00 pm - 5:10 pm
BOI
-
SAT
22h 10m1 stop
Alaska Airlines Logo
6:06 pm - 11:59 pm
SAT
-
BOI
6h 53m1 stop
$304Alaska Airlines
Mon, Feb 23 - Sat, Feb 28
Multiple Airlines Logo
10:41 pm - 11:21 am
BOI
-
SAT
35h 40m2 stops
Multiple Airlines Logo
3:55 pm - 11:17 am
SAT
-
BOI
20h 22m1 stop
$307Multiple Airlines
Fri, Dec 19 - Sat, Jan 10
Delta Logo
1:51 pm - 12:41 am
BOI
-
SAT
9h 50m2 stops
Delta Logo
7:35 am - 12:01 pm
SAT
-
BOI
5h 26m1 stop
$315Delta
Mon, Feb 23 - Sat, Feb 28
Alaska Airlines Logo
9:02 am - 5:45 pm
BOI
-
SAT
7h 43m1 stop
Alaska Airlines Logo
6:46 pm - 10:52 am
SAT
-
BOI
17h 06m1 stop
$324Alaska Airlines
Fri, Jan 23 - Sun, Jan 25
Delta Logo
1:40 pm - 12:41 am
BOI
-
SAT
10h 01m2 stops
Delta Logo
1:03 pm - 11:59 pm
SAT
-
BOI
11h 56m2 stops
$334Delta
Mon, Feb 2 - Fri, Feb 6

Delta flights from Boise to San Antonio

Our best Delta deals on Boise to San Antonio flight tickets
Delta
Dec 24
BOI1:00 pmBoise Air Term. Gowen Fld
7h 26m
1 stop
SAT9:26 pmSan Antonio
Dec 25
SAT5:10 amSan Antonio
8h 35m
1 stop
BOI12:45 pmBoise Air Term. Gowen Fld
$255
Find similar
Delta
Jan 6
BOI5:40 amBoise Air Term. Gowen Fld
10h 45m
2 stops
SAT5:25 pmSan Antonio
Jan 13
SAT1:03 pmSan Antonio
9h 55m
2 stops
BOI9:58 pmBoise Air Term. Gowen Fld
$294
Find similar
Delta
Feb 14
BOI12:51 pmBoise Air Term. Gowen Fld
7h 37m
1 stop
SAT9:28 pmSan Antonio
Feb 20
SAT5:30 amSan Antonio
7h 58m
1 stop
BOI12:28 pmBoise Air Term. Gowen Fld
$302
Find similar

Frontier flights from Boise to San Antonio

Our best Frontier deals on Boise to San Antonio flight tickets
Frontier
Dec 21
BOI12:38 pmBoise Air Term. Gowen Fld
10h 39m
1 stop
SAT12:17 amSan Antonio
Jan 1
SAT6:45 amSan Antonio
5h 58m
1 stop
BOI11:43 amBoise Air Term. Gowen Fld
$208
Find similar
Frontier
Dec 20
BOI12:54 pmBoise Air Term. Gowen Fld
10h 23m
1 stop
SAT12:17 amSan Antonio
Dec 25
SAT6:45 amSan Antonio
5h 58m
1 stop
BOI11:43 amBoise Air Term. Gowen Fld
$232
Find similar
Frontier
Dec 20
BOI12:54 pmBoise Air Term. Gowen Fld
10h 23m
1 stop
SAT12:17 amSan Antonio
Dec 28
SAT6:45 amSan Antonio
5h 58m
1 stop
BOI11:43 amBoise Air Term. Gowen Fld
$367
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boise to San Antonio 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 December 11, 2025.
Use the filters below to find and compare flights from Boise to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Sun 12/21

12:38 pm-12:17 am

1 stop10h 39m

San Antonio

Thu 1/1

6:45 am-11:43 am

1 stop5h 58m

$208

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Tue 1/6

9:55 am-6:37 pm

1 stop7h 42m

San Antonio

Tue 1/13

6:46 pm-10:52 am

1 stop17h 06m

$293

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Tue 1/6

5:40 am-5:25 pm

2 stops10h 45m

San Antonio

Tue 1/13

1:03 pm-9:58 pm

2 stops9h 55m

$294

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Tue 1/6

12:37 pm-8:04 pm

1 stop6h 27m

San Antonio

Tue 1/13

6:14 am-2:22 pm

2 stops9h 08m

$299

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Sat 2/14

12:51 pm-9:28 pm

1 stop7h 37m

San Antonio

Fri 2/20

5:30 am-12:28 pm

1 stop7h 58m

$302

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Mon 2/23

6:00 pm-5:10 pm

1 stop22h 10m

San Antonio

Sat 2/28

6:06 pm-11:59 pm

1 stop6h 53m

$304

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 12/19

10:41 pm-11:21 am

2 stops35h 40m

San Antonio

Sat 1/10

3:55 pm-11:17 am

1 stop20h 22m

$307

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Mon 2/23

1:51 pm-12:41 am

2 stops9h 50m

San Antonio

Sat 2/28

7:35 am-12:01 pm

1 stop5h 26m

$315

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 1/23

9:02 am-5:45 pm

1 stop7h 43m

San Antonio

Sun 1/25

6:46 pm-10:52 am

1 stop17h 06m

$324

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Mon 2/2

1:40 pm-12:41 am

2 stops10h 01m

San Antonio

Fri 2/6

1:03 pm-11:59 pm

2 stops11h 56m

$334

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 San Antonio from

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

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 San Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from Boise during September instead. Flights to San Antonio in September, while not as cheap as those in August, still average around $278.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Wednesday when prices can be found for as low as $329. This is often the case because there is less demand to fly during this day of the week. 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 San Antonio on Monday is $445.

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

According to our data, the cheapest time of day to fly to San Antonio is in the evening. momondo users have found flights departing from Boise to San Antonio in the evening for as low as $272. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly at noon, with an average ticket price of $443. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to San Antonio?

You are more likely to see cheaper flights to San Antonio from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $385 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Boise for as low as $244 on momondo.

How have Boise to San Antonio flight prices changed over time?

As of December 2025, prices for Boise to San Antonio flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from Boise to San Antonio

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

Cheap Boise to San Antonio (BOI to SAT) flight deals and tips

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

Fastest flight time

5h 07m

Direct flights

None
The fastest flight from Boise to San Antonio takes 5h 07m
There are no direct flights from Boise to San Antonio. There are no popular flight routes from Boise to San Antonio.
Search flight deals

  • How far is Boise Air Term. Gowen Fld to San Antonio by plane?

    There are 1381.9 mi between Boise Air Term. Gowen Fld and San Antonio. In terms of flight time, this usually takes a little over 5h 07m.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to San Antonio Airport?

    Prices for flights from Boise Air Term. Gowen Fld Airport to San Antonio Airport refresh daily.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to San Antonio Airport?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to San Antonio Airport?

    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 Boise Air Term. Gowen Fld Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The necessary travel and health documents for your San Antonio 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 Boise to San Antonio?

Best airlines flying from Boise to San Antonio

Compare and see reviews for airlines that fly from Boise to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $226Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
SouthwestPriceFrom $230Free CancellationRating
7.9
4,253 reviews
Search Southwest flights
DeltaPriceFrom $244Free CancellationRating
7.9
8,008 reviews
Search Delta flights
American AirlinesPriceFrom $259Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Boerne
Schertz
Pleasanton

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Antonio from Boise.

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

Flights from Boise to San Antonio with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Boise and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to San Antonio, momondo offers a useful price alert feature which will track prices for flights to San Antonio from Boise and alert you when they change.

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