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Cheap flights from Boise to San Antonio from $148

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 1/6. 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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Cheap round-trip flights

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Frontier Logo
12:07 pm - 3:00 pmBOI-SAT
25h 53m1 stop
Frontier Logo
4:53 pm - 11:17 amSAT-BOI
19h 24m2 stops
$223Frontier
Find Deal
Fri, Jan 9 - Sun, Jan 11
Multiple Airlines Logo
12:07 pm - 3:00 pmBOI-SAT
25h 53m1 stop
Multiple Airlines Logo
4:53 pm - 9:20 amSAT-BOI
17h 27m1 stop
$232Multiple Airlines
Find Deal
Fri, Jan 9 - Sun, Jan 11
Frontier Logo
12:44 pm - 6:58 pmBOI-SAT
5h 14m1 stop
Frontier Logo
6:45 am - 11:43 amSAT-BOI
5h 58m1 stop
$282Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 21
Delta Logo
7:15 am - 2:46 pmBOI-SAT
6h 31m1 stop
Delta Logo
7:00 am - 8:12 pmSAT-BOI
14h 12m2 stops
$289Delta
Find Deal
Sat, Feb 21 - Wed, Feb 25
Hawaiian Airlines Logo
6:28 am - 5:10 pmBOI-SAT
9h 42m1 stop
Hawaiian Airlines Logo
6:06 pm - 11:59 pmSAT-BOI
6h 53m1 stop
$290Hawaiian Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
7:00 am - 2:18 pmBOI-SAT
6h 18m1 stop
American Airlines Logo
6:00 am - 1:47 pmSAT-BOI
8h 47m1 stop
$291American Airlines
Find Deal
Sat, Feb 21 - Wed, Mar 4
Multiple Airlines Logo
12:44 pm - 7:00 pmBOI-SAT
5h 16m1 stop
Multiple Airlines Logo
6:00 am - 12:45 pmSAT-BOI
7h 45m1 stop
$294Multiple Airlines
Find Deal
Fri, Dec 5 - Tue, Dec 9
United Airlines Logo
2:40 pm - 8:56 pmBOI-SAT
5h 16m1 stop
United Airlines Logo
11:43 am - 8:55 pmSAT-BOI
10h 12m2 stops
$296United Airlines
Find Deal
Sat, Feb 21 - Wed, Mar 4
Delta Logo
1:46 pm - 12:41 amBOI-SAT
9h 55m2 stops
Delta Logo
6:30 am - 4:26 pmSAT-BOI
10h 56m2 stops
$303Delta
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Wed, Mar 4 - Wed, Mar 18
Alaska Airlines Logo
6:23 am - 5:45 pmBOI-SAT
10h 22m1 stop
Alaska Airlines Logo
6:46 pm - 3:10 pmSAT-BOI
21h 24m1 stop
$304Alaska Airlines
Find Deal
Fri, Jan 16 - Thu, Jan 22

American Airlines flights from Boise to San Antonio

Our best American Airlines deals on Boise to San Antonio flight tickets
American Airlines
Feb 21
BOI7:00 amBoise Air Term. Gowen Fld
6h 18m
1 stop
SAT2:18 pmSan Antonio
Mar 4
SAT6:00 amSan Antonio
8h 47m
1 stop
BOI1:47 pmBoise Air Term. Gowen Fld
$291
Find similar
American Airlines
Feb 23
BOI11:35 amBoise Air Term. Gowen Fld
7h 35m
1 stop
SAT8:10 pmSan Antonio
Feb 26
SAT6:00 amSan Antonio
6h 01m
1 stop
BOI11:01 amBoise Air Term. Gowen Fld
$348
Find similar
American Airlines
Dec 16
BOI6:39 amBoise Air Term. Gowen Fld
5h 21m
1 stop
SAT1:00 pmSan Antonio
Dec 19
SAT3:00 pmSan Antonio
8h 02m
1 stop
BOI10:02 pmBoise Air Term. Gowen Fld
$438
Find similar

United Airlines flights from Boise to San Antonio

Our best United Airlines deals on Boise to San Antonio flight tickets
United Airlines
Feb 21
BOI2:40 pmBoise Air Term. Gowen Fld
5h 16m
1 stop
SAT8:56 pmSan Antonio
Mar 4
SAT11:43 amSan Antonio
10h 12m
2 stops
BOI8:55 pmBoise Air Term. Gowen Fld
$296
Find similar
United Airlines
Dec 8
BOI6:20 amBoise Air Term. Gowen Fld
5h 46m
1 stop
SAT1:06 pmSan Antonio
Dec 10
SAT8:39 amSan Antonio
6h 00m
1 stop
BOI1:39 pmBoise Air Term. Gowen Fld
$419
Find similar
United Airlines
Dec 8
BOI6:20 amBoise Air Term. Gowen Fld
5h 46m
1 stop
SAT1:06 pmSan Antonio
Dec 10
SAT5:20 amSan Antonio
9h 15m
2 stops
BOI1:35 pmBoise Air Term. Gowen Fld
$424
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 November 20, 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

Fri 1/9

12:07 pm-3:00 pm

1 stop25h 53m

San Antonio

Sun 1/11

4:53 pm-11:17 am

2 stops19h 24m

$223

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 1/9

12:07 pm-3:00 pm

1 stop25h 53m

San Antonio

Sun 1/11

4:53 pm-9:20 am

1 stop17h 27m

$232

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Thu 12/4

12:44 pm-6:58 pm

1 stop5h 14m

San Antonio

Sun 12/21

6:45 am-11:43 am

1 stop5h 58m

$282

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Sat 2/21

7:15 am-2:46 pm

1 stop6h 31m

San Antonio

Wed 2/25

7:00 am-8:12 pm

2 stops14h 12m

$289

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Sat 2/21

6:28 am-5:10 pm

1 stop9h 42m

San Antonio

Wed 2/25

6:06 pm-11:59 pm

1 stop6h 53m

$290

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Sat 2/21

7:00 am-2:18 pm

1 stop6h 18m

San Antonio

Wed 3/4

6:00 am-1:47 pm

1 stop8h 47m

$291

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 12/5

12:44 pm-7:00 pm

1 stop5h 16m

San Antonio

Tue 12/9

6:00 am-12:45 pm

1 stop7h 45m

$294

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Sat 2/21

2:40 pm-8:56 pm

1 stop5h 16m

San Antonio

Wed 3/4

11:43 am-8:55 pm

2 stops10h 12m

$296

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Wed 3/4

1:46 pm-12:41 am

2 stops9h 55m

San Antonio

Wed 3/18

6:30 am-4:26 pm

2 stops10h 56m

$303

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 1/16

6:23 am-5:45 pm

1 stop10h 22m

San Antonio

Thu 1/22

6:46 pm-3:10 pm

1 stop21h 24m

$304

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 typical price of a round-trip flight between Boise and San Antonio?

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 $390 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 November 2025, prices for Boise to San Antonio flights are approximately 43% more expensive 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

Direct flights

None
There are no direct flights from Boise to San Antonio. There are no popular flight routes from Boise to San Antonio.
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  • 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 4h 46m.

  • 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
9,028 reviews
Search United Airlines flights
DeltaPriceFrom $244Free CancellationRating
7.9
8,002 reviews
Search Delta flights
SouthwestPriceFrom $248Free CancellationRating
8.0
4,251 reviews
Search Southwest flights
American AirlinesPriceFrom $261Free CancellationRating
7.2
11,047 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
Boerne
Kerrville
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.

An easier way to manage your San Antonio trip

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