How long is the flight from Boise to San Antonio?

Delta, United Airlines, and Alaska Airlines can get you from Boise to San Antonio in just under 6h 45m. Your travel time can differ by up to 6h 04m. Boise and San Antonio are separated by a distance of 1376 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Boise to San Antonio round-trip?

Flying on Spirit Airlines is currently your cheapest option to San Antonio, with prices starting at $110. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $233 and $280, respectively. You may be able to fly from Boise to San Antonio for 70% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Boise to San Antonio one-way?

$99 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on United Airlines and Spirit Airlines, with prices starting from $110 and $130, respectively.

What is the cheapest day to fly from Boise to San Antonio?

Travelers seeking maximum savings on their Boise to San Antonio flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular airlines that fly from Boise to San Antonio?

Before booking your flight from Boise to San Antonio check out the most popular airlines for this route: American Airlines, Delta or Spirit Airlines.

What is the cheapest day to fly round-trip from Boise to San Antonio?

Sunday flights are generally found to be more expensive for flights from Boise to San Antonio. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Antonio.

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

To save on the cost of your flight from Boise to San Antonio, book at least 18 days before your planned departure. Booking around this time can save you about 66% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $330 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $758.

What is the cheapest month to fly from Boise to San Antonio?

August can be a great time to fly to San Antonio from Boise with a flight ticket averaging about $370. Cheapflights users have found deals in the month of August for as cheap as $211. The most expensive prices can be found in the month of June.

Can I find deals for flights from Boise to San Antonio that include hotel bookings?

Yes. In addition to deals on Boise to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Boise to San Antonio?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to San Antonio.

Can I find deals for business class flights from Boise to San Antonio?

Yes. Cheapflights offers flight deals from Boise to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$99+ Flights from Boise to San Antonio

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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to San Antonio are usually found in August or September, booked 17 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Boise to San Antonio

Round-trip from	$207 (Delta)
One-way from	$99 (Southwest)
Popular in	June
Cheapest in	August
Average price	$278

From Boise Air Term. Gowen Fld to San Antonio

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One-way flight from Boise Air Term. Gowen Fld to San Antonio

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Highest demand for flights based on searches. 13% potential increase in price ($56 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Boise to San Antonio

Cheapest flights from Boise to San Antonio
Explore the most affordable flight options available from Boise to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Wed 12/245:30 amBOI - SAT

1 stop6h 40mDelta

Tue 12/307:14 pmSAT - BOI

1 stop5h 59mDelta

Deal found 9/11

$207

Thu 10/22:16 pmBOI - SAT

1 stop22h 00mMultiple Airlines

Fri 10/39:47 pmSAT - BOI

1 stop16h 34mMultiple Airlines

Deal found 9/10

$225

Fri 10/245:25 pmBOI - SAT

1 stop5h 15mSouthwest

Wed 10/297:15 amSAT - BOI

1 stop7h 30mSouthwest

Deal found 9/8

$226

Fri 11/74:00 pmBOI - SAT

1 stop6h 46mDelta

Mon 11/105:54 pmSAT - BOI

1 stop7h 41mDelta

Deal found 9/11

$233

Thu 10/95:00 amBOI - SAT

1 stop6h 45mUnited Airlines

Fri 10/101:41 pmSAT - BOI

1 stop5h 07mUnited Airlines

Deal found 9/10

$246

Wed 10/1510:15 amBOI - SAT

2 stops12h 49mAlaska Airlines

Sat 10/186:40 amSAT - BOI

1 stop7h 30mAlaska Airlines

Deal found 9/11

$254

Fri 10/311:35 pmBOI - SAT

1 stop8h 57mDelta

Fri 10/244:51 pmSAT - BOI

1 stop7h 01mDelta

Deal found 9/10

$259

Fri 10/172:07 pmBOI - SAT

1 stop8h 20mAmerican Airlines

Sat 10/256:05 amSAT - BOI

1 stop7h 41mAmerican Airlines

Deal found 9/9

$278

Wed 10/154:15 pmBOI - SAT

1 stop5h 05mSouthwest

Fri 10/178:25 pmSAT - BOI

1 stop4h 55mSouthwest

Deal found 9/9

$291

Sat 10/115:55 pmBOI - SAT

1 stop5h 36mDelta

Fri 10/176:07 pmSAT - BOI

1 stop6h 52mDelta

Deal found 9/9

$301

Best flights from Boise to San Antonio
Discover carefully curated flight deals from Boise to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Thu 10/22:16 pmBOI - SAT

1 stop22h 00mMultiple Airlines

Fri 10/39:47 pmSAT - BOI

1 stop16h 34mMultiple Airlines

Deal found 9/10

$225

Fri 11/74:00 pmBOI - SAT

1 stop6h 46mDelta

Mon 11/105:54 pmSAT - BOI

1 stop7h 41mDelta

Deal found 9/11

$233

Thu 10/95:00 amBOI - SAT

1 stop6h 45mUnited Airlines

Fri 10/101:41 pmSAT - BOI

1 stop5h 07mUnited Airlines

Deal found 9/10

$246

Wed 10/1510:15 amBOI - SAT

2 stops12h 49mAlaska Airlines

Sat 10/186:40 amSAT - BOI

1 stop7h 30mAlaska Airlines

Deal found 9/11

$254

Fri 10/172:07 pmBOI - SAT

1 stop8h 20mAmerican Airlines

Sat 10/252:58 pmSAT - BOI

1 stop5h 39mAmerican Airlines

Deal found 9/10

$304

Fri 11/71:40 pmBOI - SAT

2 stops8h 35mSouthwest

Mon 11/105:30 pmSAT - BOI

1 stop8h 15mSouthwest

Deal found 9/11

$322

Sat 10/115:55 pmBOI - SAT

1 stop5h 36mDelta

Fri 10/176:07 pmSAT - BOI

1 stop6h 52mDelta

Deal found 9/9

$301

Fri 10/39:26 pmBOI - SAT

1 stop17h 24mMultiple Airlines

Fri 10/2410:54 amSAT - BOI

2 stops11h 15mMultiple Airlines

Deal found 9/10

$322

Wed 10/1511:41 amBOI - SAT

2 stops11h 05mDelta

Sat 10/186:00 amSAT - BOI

2 stops11h 06mDelta

Deal found 9/9

$312

Wed 10/1511:41 amBOI - SAT

2 stops11h 05mDelta

Fri 10/176:07 pmSAT - BOI

1 stop6h 52mDelta

Deal found 9/9

$322

Last-minute flights from Boise to San Antonio
Discover last-minute flight deals from Boise to San Antonio. Data last updated September 11, 2025 and is based on user searches.

Wed 10/15:43 pmBOI - SAT

1 stop5h 36mDelta

Sat 10/412:40 pmSAT - BOI

1 stop7h 24mDelta

Deal found 9/11

$208

Wed 10/12:39 pmBOI - SAT

1 stop5h 16mUnited Airlines

Sat 10/45:30 amSAT - BOI

2 stops9h 13mUnited Airlines

Deal found 9/11

$214

Thu 10/22:16 pmBOI - SAT

1 stop22h 00mMultiple Airlines

Fri 10/39:47 pmSAT - BOI

1 stop16h 34mMultiple Airlines

Deal found 9/10

$225

Fri 10/311:35 pmBOI - SAT

1 stop8h 57mDelta

Fri 10/244:51 pmSAT - BOI

1 stop7h 01mDelta

Deal found 9/10

$259

Thu 10/95:00 amBOI - SAT

1 stop6h 45mUnited Airlines

Fri 10/101:41 pmSAT - BOI

1 stop5h 07mUnited Airlines

Deal found 9/10

$246

Wed 10/1510:15 amBOI - SAT

2 stops12h 49mAlaska Airlines

Sat 10/186:40 amSAT - BOI

1 stop7h 30mAlaska Airlines

Deal found 9/11

$254

Wed 10/1511:41 amBOI - SAT

2 stops11h 05mDelta

Sat 10/186:00 amSAT - BOI

2 stops11h 06mDelta

Deal found 9/11

$316

Fri 10/172:07 pmBOI - SAT

1 stop8h 20mAmerican Airlines

Sat 10/256:05 amSAT - BOI

1 stop7h 41mAmerican Airlines

Deal found 9/11

$278

One-way flights from Boise to San Antonio
Search for one-way flight options from Boise to San Antonio. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Sat 11/812:40 pmBOI - SAT

1 stop7h 35mSouthwest

Deal found 9/10

$99

Sat 11/82:31 pmBOI - SAT

2 stops7h 25mUnited Airlines

Deal found 9/10

$110

Mon 9/299:26 pmBOI - SAT

1 stop22h 26mSpirit Airlines

Deal found 9/9

$130

Mon 12/13:54 pmBOI - SAT

1 stop7h 05mDelta

Deal found 9/10

$234

Mon 9/291:57 pmBOI - SAT

2 stops8h 03mAmerican Airlines

Deal found 9/9

$291

Tue 9/238:00 amBOI - SAT

1 stop9h 57mHawaiian Airlines

Deal found 9/10

$345

Tue 9/231:57 pmBOI - SAT

2 stops7h 16mAmerican Airlines

Deal found 9/10

$351

Mon 12/18:50 pmBOI - SAT

3 stops45h 40mMultiple Airlines

Deal found 9/10

$445

Sat 11/87:45 pmBOI - SAT

3 stops46h 45mMultiple Airlines

Deal found 9/10

$455

Tue 9/238:18 pmBOI - SAT

3 stops43h 02mMultiple Airlines

Deal found 9/10

$502

Mon 9/298:46 pmBOI - SAT

3 stops19h 23mMultiple Airlines

Deal found 9/9

$571

Fly from

Fly to

Route

Depart

Return

Price

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Thu 10/2

2:16 pm-1:16 pm

1 stop22h 00m

San Antonio

Fri 10/3

9:47 pm-1:21 pm

1 stop16h 34m

$225

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 11/7

4:00 pm-11:46 pm

1 stop6h 46m

San Antonio

Mon 11/10

5:54 pm-12:35 am

1 stop7h 41m

$233

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Thu 10/9

5:00 am-12:45 pm

1 stop6h 45m

San Antonio

Fri 10/10

1:41 pm-5:48 pm

1 stop5h 07m

$246

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Wed 10/15

10:15 am-12:04 am

2 stops12h 49m

San Antonio

Sat 10/18

6:40 am-1:10 pm

1 stop7h 30m

$254

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Sat 10/11

5:55 pm-12:31 am

1 stop5h 36m

San Antonio

Fri 10/17

6:07 pm-11:59 pm

1 stop6h 52m

$301

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 10/17

2:07 pm-11:27 pm

1 stop8h 20m

San Antonio

Sat 10/25

2:58 pm-7:37 pm

1 stop5h 39m

$304

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Wed 10/15

11:41 am-11:46 pm

2 stops11h 05m

San Antonio

Sat 10/18

6:00 am-4:06 pm

2 stops11h 06m

$312

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 11/7

1:40 pm-11:15 pm

2 stops8h 35m

San Antonio

Mon 11/10

5:30 pm-12:45 am

1 stop8h 15m

$322

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 10/3

9:26 pm-3:50 pm

1 stop17h 24m

San Antonio

Fri 10/24

10:54 am-9:09 pm

2 stops11h 15m

$322

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Wed 10/15

11:41 am-11:46 pm

2 stops11h 05m

San Antonio

Fri 10/17

6:07 pm-11:59 pm

1 stop6h 52m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 20 results

Best time to book a flight from Boise to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Boise with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boise to San Antonio

How far ahead should I book a flight from Boise to San Antonio?

The price you pay for your flight from Boise to San Antonio may vary depending on when you book. For the best chance of a lower fare, look to book 17 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boise to San Antonio?

Currently, August is the cheapest month in which you can book a flight from Boise to San Antonio (average of $295). Flying from Boise to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOI to SAT?

Unlike at noon, when flights are generally more expensive, you can save up to 39% on flights from Boise to San Antonio by exploring options for tickets in the evening.

Reviews of airlines servicing San Antonio

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Boise to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Southwest

8.0

Very good

4,248 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Delta

8.0

Very good

7,960 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

United Airlines

7.4

Good

8,937 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Spirit Airlines

6.3

Okay

8,023 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

How long is the flight from Boise to San Antonio?
Delta, United Airlines, and Alaska Airlines can get you from Boise to San Antonio in just under 6h 45m. Your travel time can differ by up to 6h 04m. Boise and San Antonio are separated by a distance of 1376 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Boise to San Antonio round-trip?
Flying on Spirit Airlines is currently your cheapest option to San Antonio, with prices starting at $110. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $233 and $280, respectively. You may be able to fly from Boise to San Antonio for 70% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Boise to San Antonio one-way?
$99 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on United Airlines and Spirit Airlines, with prices starting from $110 and $130, respectively.
Can I find deals for flights from Boise to San Antonio that include hotel bookings?
Yes. In addition to deals on Boise to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boise to San Antonio?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to San Antonio.
Can I find deals for business class flights from Boise to San Antonio?
Yes. Cheapflights offers flight deals from Boise to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Boise to San Antonio?
Currently, August is the cheapest month in which you can book a flight from Boise to San Antonio (average of $295). Flying from Boise to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Other flights to San Antonio

Top 5 airlines flying from Boise to San Antonio

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$110	Average$207	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$233	Average$331	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$280	Average$469	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$282	Average$461	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$286	Average$443	FlexibilityNo cancel fee	On-time63%

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$99+ Cheap flights from Boise to San Antonio (BOI - SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boise to San Antonio with Cheapflights

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3. Compare prices and book

Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to San Antonio are usually found in August or September, booked 17 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Boise to San Antonio

Round-trip from

One-way from

Popular in

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Find flight deals from Boise to San Antonio

Cheapest flights from Boise to San AntonioExplore the most affordable flight options available from Boise to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Boise to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boise to San Antonio that are best for you.

Best time to book a flight from Boise to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Boise with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boise to San Antonio

How far ahead should I book a flight from Boise to San Antonio?

What is the cheapest month to book a flight from Boise to San Antonio?

What is the cheapest time of day to fly from BOI to SAT?

Reviews of airlines servicing San Antonio

Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Boise to San Antonio by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boise to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Boise to San Antonio?

What are the cheapest airlines flying from Boise to San Antonio round-trip?

What are the cheapest airlines to fly from Boise to San Antonio one-way?

Can I find deals for flights from Boise to San Antonio that include hotel bookings?

How can I find direct flights from Boise to San Antonio?

Can I find deals for business class flights from Boise to San Antonio?

What is the cheapest month to book a flight from Boise to San Antonio?

Traveling to a place near San Antonio?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boise to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Boise to San Antonio

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Cheapest flights from Boise to San Antonio
Explore the most affordable flight options available from Boise to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.