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

Flying on Frontier is currently your cheapest option to San Antonio, with prices starting at $188. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $287 and $292, respectively. You may be able to fly from Boise to San Antonio for 48% less than the average price by searching for these airlines.

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, Alaska Airlines or Delta.

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 53 days before your planned departure. Booking around this time can save you about 113% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $558 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $723.

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

September can be a great time to fly to San Antonio from Boise with a flight ticket averaging about $367. Cheapflights users have found deals in the month of September for as cheap as $268. The most expensive prices can be found in the month of December.

Most accurate provider : When it comes to deals on Boise-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-San Antonio flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Boise-San Antonio flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$188+ Flights from Boise to San Antonio - Compare & Save Big

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Find cheap flights from Boise to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to San Antonio are usually found in September or July, booked 52 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Boise to San Antonio

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$188 (CheapOair)
Popular in	December
Cheapest in	September
Average price	$382

Provider with most accurate pricing for Boise Air Term. Gowen Fld-San Antonio flight deals.

Search Deals

Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San Antonio flights.

Search Deals

From Boise Air Term. Gowen Fld to San Antonio

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($50 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 2025

Search Deals

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 May 1, 2025.

Thu 5/152:57 pmBOI - SAT

1 stop22h 20mFrontier

Mon 5/193:22 pmSAT - BOI

1 stop23h 15mFrontier

Deal found 4/30

$188

Wed 5/142:41 pmBOI - SAT

1 stop8h 18mMultiple Airlines

Sun 5/1810:51 pmSAT - BOI

1 stop13h 30mMultiple Airlines

Deal found 4/29

$263

Tue 7/153:35 pmBOI - SAT

1 stop7h 23mAmerican Airlines

Tue 7/225:00 amSAT - BOI

1 stop6h 54mAmerican Airlines

Deal found 4/30

$287

Wed 5/145:00 amBOI - SAT

2 stops7h 18mUnited Airlines

Sat 5/171:10 pmSAT - BOI

1 stop5h 50mUnited Airlines

Deal found 4/30

$292

Tue 5/66:30 amBOI - SAT

1 stop11h 07mAlaska Airlines

Wed 5/146:35 amSAT - BOI

1 stop6h 41mAlaska Airlines

Deal found 4/28

$301

Thu 5/82:41 pmBOI - SAT

1 stop8h 18mHawaiian Airlines

Sun 5/116:35 amSAT - BOI

1 stop8h 12mHawaiian Airlines

Deal found 4/29

$316

Sat 5/311:18 pmBOI - SAT

1 stop7h 38mDelta

Sat 6/148:00 amSAT - BOI

2 stops12h 06mDelta

Deal found 4/29

$317

Mon 5/51:52 pmBOI - SAT

2 stops34h 18mSpirit Airlines

Thu 5/810:51 pmSAT - BOI

1 stop13h 30mSpirit Airlines

Deal found 4/29

$363

Thu 7/176:40 amBOI - SAT

2 stops7h 20mSouthwest

Mon 7/2111:15 amSAT - BOI

2 stops7h 25mSouthwest

Deal found 4/29

$443

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 May 1, 2025.

Thu 5/152:57 pmBOI - SAT

1 stop22h 20mFrontier

Mon 5/193:22 pmSAT - BOI

1 stop23h 15mFrontier

Deal found 4/30

$188

Wed 5/142:41 pmBOI - SAT

1 stop8h 18mMultiple Airlines

Sun 5/1810:51 pmSAT - BOI

1 stop13h 30mMultiple Airlines

Deal found 4/29

$263

Tue 7/153:35 pmBOI - SAT

1 stop7h 23mAmerican Airlines

Tue 7/225:00 amSAT - BOI

1 stop6h 54mAmerican Airlines

Deal found 4/30

$287

Wed 5/145:00 amBOI - SAT

2 stops7h 18mUnited Airlines

Sat 5/171:10 pmSAT - BOI

1 stop5h 50mUnited Airlines

Deal found 4/30

$292

Tue 5/66:30 amBOI - SAT

1 stop11h 07mAlaska Airlines

Wed 5/146:35 amSAT - BOI

1 stop6h 41mAlaska Airlines

Deal found 4/28

$301

Thu 5/82:41 pmBOI - SAT

1 stop8h 18mHawaiian Airlines

Sun 5/116:35 amSAT - BOI

1 stop8h 12mHawaiian Airlines

Deal found 4/29

$316

Sat 5/311:18 pmBOI - SAT

1 stop7h 38mDelta

Sat 6/148:00 amSAT - BOI

2 stops12h 06mDelta

Deal found 4/29

$317

Mon 5/51:52 pmBOI - SAT

2 stops34h 18mSpirit Airlines

Thu 5/810:51 pmSAT - BOI

1 stop13h 30mSpirit Airlines

Deal found 4/29

$363

Thu 7/176:40 amBOI - SAT

2 stops7h 20mSouthwest

Mon 7/2111:15 amSAT - BOI

2 stops7h 25mSouthwest

Deal found 4/29

$443

Last-minute flights from Boise to San Antonio
Discover last-minute flight deals from Boise to San Antonio. Data last updated May 1, 2025 and is based on user searches.

Mon 5/51:52 pmBOI - SAT

2 stops34h 18mSpirit Airlines

Thu 5/810:51 pmSAT - BOI

1 stop13h 30mSpirit Airlines

Deal found 4/29

$363

Tue 5/66:30 amBOI - SAT

1 stop11h 07mAlaska Airlines

Wed 5/146:35 amSAT - BOI

1 stop6h 41mAlaska Airlines

Deal found 4/28

$301

Thu 5/82:41 pmBOI - SAT

1 stop8h 18mHawaiian Airlines

Sun 5/116:35 amSAT - BOI

1 stop8h 12mHawaiian Airlines

Deal found 4/29

$316

Thu 5/82:00 pmBOI - SAT

1 stop7h 15mUnited Airlines

Mon 5/194:53 pmSAT - BOI

1 stop5h 49mUnited Airlines

Deal found 4/29

$382

Fri 5/91:38 pmBOI - SAT

1 stop7h 25mAmerican Airlines

Tue 5/205:00 amSAT - BOI

1 stop8h 45mAmerican Airlines

Deal found 4/29

$350

Fri 5/91:38 pmBOI - SAT

1 stop6h 11mMultiple Airlines

Thu 5/1510:51 pmSAT - BOI

1 stop13h 30mMultiple Airlines

Deal found 4/29

$360

Fri 5/91:50 pmBOI - SAT

1 stop9h 15mSouthwest

Tue 5/208:55 amSAT - BOI

2 stops9h 45mSouthwest

Deal found 4/30

$452

Wed 5/142:41 pmBOI - SAT

1 stop8h 18mMultiple Airlines

Sun 5/1810:51 pmSAT - BOI

1 stop13h 30mMultiple Airlines

Deal found 4/29

$263

Wed 5/142:00 pmBOI - SAT

1 stop7h 15mUnited Airlines

Sat 5/171:10 pmSAT - BOI

1 stop5h 50mUnited Airlines

Deal found 4/30

$287

Thu 5/152:57 pmBOI - SAT

1 stop22h 20mFrontier

Mon 5/193:22 pmSAT - BOI

1 stop23h 15mFrontier

Deal found 4/30

$188

Sat 5/311:18 pmBOI - SAT

1 stop7h 38mDelta

Sat 6/148:00 amSAT - BOI

2 stops12h 06mDelta

Deal found 4/29

$317

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 May 1, 2025.

Sun 5/41:23 pmBOI - SAT

1 stop6h 32mAmerican Airlines

Deal found 4/29

$372

Sun 5/45:00 amBOI - SAT

2 stops9h 46mUnited Airlines

Deal found 4/29

$377

Cheapflights Fare Finder

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

Thu 5/15

2:57 pm-2:17 pm

1 stop22h 20m

San Antonio

Mon 5/19

3:22 pm-1:37 pm

1 stop23h 15m

$188

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Wed 5/14

2:41 pm-11:59 pm

1 stop8h 18m

San Antonio

Sun 5/18

10:51 pm-11:21 am

1 stop13h 30m

$263

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Tue 7/15

7:16 am-2:31 pm

1 stop6h 15m

San Antonio

Tue 7/22

6:55 pm-11:33 pm

1 stop5h 38m

$287

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Wed 5/14

5:00 am-1:18 pm

2 stops7h 18m

San Antonio

Sat 5/17

1:10 pm-6:00 pm

1 stop5h 50m

$292

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Tue 5/6

6:30 am-6:37 pm

1 stop11h 07m

San Antonio

Wed 5/14

6:35 am-12:16 pm

1 stop6h 41m

$301

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Thu 5/8

2:41 pm-11:59 pm

1 stop8h 18m

San Antonio

Sun 5/11

6:35 am-1:47 pm

1 stop8h 12m

$316

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Sat 5/31

1:18 pm-9:56 pm

1 stop7h 38m

San Antonio

Sat 6/14

8:00 am-7:06 pm

2 stops12h 06m

$317

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Mon 5/5

1:52 pm-1:10 am

2 stops34h 18m

San Antonio

Thu 5/8

10:51 pm-11:21 am

1 stop13h 30m

$363

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Thu 7/17

6:40 am-3:00 pm

2 stops7h 20m

San Antonio

Mon 7/21

11:15 am-5:40 pm

2 stops7h 25m

$443

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Sun 5/4

1:23 pm-8:55 pm

1 stop6h 32m

$372

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 11 results

Compare providers for flights from Boise to San Antonio

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to San Antonio in May.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Boise-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-San Antonio flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Boise-San Antonio flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 52 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.

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.

Rainfall in San Antonio by month

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.

Temperature in San Antonio by month

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).

Reviews of airlines servicing San Antonio

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Boise to San Antonio have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,968 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,294 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,934 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,408 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What are the cheapest airlines flying from Boise to San Antonio round-trip?
Flying on Frontier is currently your cheapest option to San Antonio, with prices starting at $188. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $287 and $292, respectively. You may be able to fly from Boise to San Antonio for 48% less than the average price by searching for these airlines.
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 6 airlines flying from Boise to San Antonio

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$140	Average$222	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$253	Average$334	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$268	Average$387	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$272	Average$456	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$282	Average$451	FlexibilityNo cancel fee	On-time69%
Alaska Airlines	Cheapest$354	Average$548	FlexibilityNo cancel fee	On-time75%

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$188+ Cheap flights from Boise to San Antonio (BOI - SAT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to San Antonio are usually found in September or July, booked 52 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from Boise to San Antonio

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

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 May 1, 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 May 1, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Boise to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to San Antonio in May.

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?

Use this chart to determine the optimal time to book a round-trip flight from Boise to San Antonio. Price data was last updated on April 25, 2025.

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?

Find hourly flight availability from Boise to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Boise to San Antonio. Price data was last updated on December 16, 2024.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

Reviews of airlines servicing San Antonio

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Boise to San Antonio have to say. In addition to providing an overall rating, 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.

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

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?

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Alternative routes for Boise to San Antonio

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

Top 6 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 May 1, 2025.