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$121+ Cheap flights from San Antonio to Boise (SAT - BOI)

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOI
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to Boise Air Term. Gowen Fld are usually found in January or February, booked 73 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from San Antonio to Boise

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$165
(FlightHub)

One-way from

$121
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$323
From San Antonio to Boise Air Term. Gowen Fld
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One-way flight from San Antonio to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 16% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from San Antonio to Boise

Cheapest flights from San Antonio to Boise
Explore the most affordable flight options available from San Antonio to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This FlightHub deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/238:26 pmSAT - BOI
1 stop16h 17mFrontier
Sun 10/2612:28 pmBOI - SAT
1 stop6h 13mFrontier
Deal found 8/14$165
This FlightHub deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:20 pmSAT - BOI
1 stop16h 17mMultiple Airlines
Sat 10/42:16 pmBOI - SAT
1 stop5h 36mMultiple Airlines
Deal found 8/14$187
This CheapOair deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/119:47 pmSAT - BOI
1 stop23h 44mSpirit Airlines
Thu 9/182:16 pmBOI - SAT
1 stop5h 36mSpirit Airlines
Deal found 8/12$223
This FlightHub deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:23 pmSAT - BOI
1 stop18h 00mMultiple Airlines
Sun 11/912:33 pmBOI - SAT
1 stop29h 57mMultiple Airlines
Deal found 8/14$226
This Orbitz deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:00 amSAT - BOI
1 stop8h 30mMultiple Airlines
Tue 10/214:25 pmBOI - SAT
1 stop6h 39mMultiple Airlines
Deal found 8/12$227
This CheapOair deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:47 pmSAT - BOI
1 stop16h 34mSpirit Airlines
Sun 9/212:16 pmBOI - SAT
1 stop5h 36mSpirit Airlines
Deal found 8/11$229
This FlightHub deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/98:26 pmSAT - BOI
1 stop16h 17mMultiple Airlines
Mon 10/138:58 pmBOI - SAT
1 stop6h 57mMultiple Airlines
Deal found 8/12$243
This FlightHub deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:23 pmSAT - BOI
1 stop18h 00mSpirit Airlines
Sun 11/912:48 pmBOI - SAT
1 stop21h 24mSpirit Airlines
Deal found 8/12$257
This Alaska Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:27 amSAT - BOI
1 stop9h 33mAlaska Airlines
Tue 10/76:30 amBOI - SAT
1 stop11h 26mAlaska Airlines
Deal found 8/12$268

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Boise 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, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from San Antonio to Boise that are best for you.

Fly from

San Antonio

Fly to

Boise

Route

Depart

Return

Price

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 10/23

8:26 pm-11:43 am

1 stop16h 17m

Boise Air Term. Gowen Fld

Sun 10/26

12:28 pm-7:41 pm

1 stop6h 13m

$165

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 9/25

8:20 pm-11:37 am

1 stop16h 17m

Boise Air Term. Gowen Fld

Sat 10/4

2:16 pm-8:52 pm

1 stop5h 36m

$187

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Wed 9/17

9:47 pm-1:21 pm

1 stop16h 34m

Boise Air Term. Gowen Fld

Sun 9/21

2:16 pm-4:47 pm

1 stop25h 31m

$224

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 11/6

6:23 pm-11:23 am

1 stop18h 00m

Boise Air Term. Gowen Fld

Sun 11/9

12:33 pm-7:30 pm

1 stop29h 57m

$226

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Sat 10/18

6:00 am-1:30 pm

1 stop8h 30m

Boise Air Term. Gowen Fld

Tue 10/21

4:25 pm-12:04 am

1 stop6h 39m

$227

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 9/11

9:47 pm-8:31 pm

1 stop23h 44m

Boise Air Term. Gowen Fld

Thu 9/18

2:16 pm-8:52 pm

1 stop5h 36m

$233

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Fri 9/19

9:47 pm-1:21 pm

1 stop16h 34m

Boise Air Term. Gowen Fld

Sun 9/21

2:16 pm-4:47 pm

1 stop25h 31m

$233

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 11/6

6:23 pm-11:23 am

1 stop18h 00m

Boise Air Term. Gowen Fld

Sun 11/9

12:48 pm-11:12 am

1 stop21h 24m

$257

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Tue 9/23

6:40 am-11:45 am

1 stop6h 05m

Boise Air Term. Gowen Fld

Tue 9/23

12:45 pm-10:50 pm

1 stop9h 05m

$270

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 10/23

6:00 am-1:30 pm

1 stop8h 30m

Boise Air Term. Gowen Fld

Sun 10/26

2:25 pm-2:00 pm

2 stops22h 35m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 20 results
1
2

Best time to book a flight from San Antonio to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from San Antonio 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 San Antonio to Boise

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Boise. Price data was last updated on August 8, 2025.

The price you pay for your flight from San Antonio to Boise may vary depending on when you book. For the best chance of a lower fare, look to book 73 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 San Antonio to Boise?

Currently, October is the cheapest month in which you can book a flight from San Antonio to Boise (average of $314). Flying from San Antonio to Boise in June is currently the most expensive (average of $399). 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 SAT to BOI?

Find hourly flight availability from San Antonio to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

It’s typically best to fly out from San Antonio to Boise at noon. Doing so could potentially save you 21% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

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

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

What’s the top layover airport for flights from San Antonio to Boise?

Share of 1-stop round-trip flights from San Antonio to Boise chosen by Cheapflights users in the past 12 months, using the same layover each way.

Las Vegas (LAS) – chosen by Cheapflights users on 75% of 1-stop itineraries from San Antonio to Boise on Cheapflights.

What’s the cheapest layover airport for flights from San Antonio to Boise?

Average round-trip fare for 1-stop flights from San Antonio to Boise, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Phoenix (PHX) is the most affordable 1-stop option, with an average round-trip price of $306.

What’s the fastest layover option from San Antonio to Boise?

Shortest average travel time for 1-stop one-way flights from San Antonio to Boise, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 5h 15m.

Which airport typically offers the quickest layover for flights from San Antonio to Boise?

Average layover duration for 1-stop one-way flights from San Antonio to Boise, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 1h 05m.

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boise. Reviews last updated August 14, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from San Antonio to Boise have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,045 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Boise. 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 San Antonio to Boise round-trip?

    Cheapflights users have booked flights from San Antonio to Boise round-trip from $116. Other airlines that can offer you cheap pricing are Delta, from $204, and American Airlines, from $244. These flights start at 71% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio to Boise 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 San Antonio to Boise?

    Currently, October is the cheapest month in which you can book a flight from San Antonio to Boise (average of $314). Flying from San Antonio to Boise in June is currently the most expensive (average of $399). 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

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Ontario
Meridian
Nampa
Caldwell
McCall

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Top 5 airlines flying from San Antonio to Boise

Discover the top 5 airlines that operate flights from San Antonio to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$116Average$199FlexibilityNo cancel feeOn-time65%
DeltaCheapest$204Average$384FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$244Average$386FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$286Average$449FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$286Average$461FlexibilityNo cancel feeOn-time69%

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