$65 Cheap Flights from Boise (BOI) to San Antonio (SAT)

View $65 flight on Thu, Dec 11, 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to San Antonio International Airport (SAT)

Cheap Flights from Boise to San Antonio (BOI-SAT)

Prices were available within the past 7 days and start at $65 for one-way flights and $140 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Jan 29 - Wed, Feb 18
BOI
Boise
SAT
San Antonio
$140 Roundtrip, found 1 day ago
$140
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Jan 29 from Boise to San Antonio, returning Wed, Feb 18, priced at $140 found 1 day ago
Frontier Airlines
Fri, Nov 21 - Fri, Nov 28
BOI
Boise
SAT
San Antonio
$141 Roundtrip, just found
$141
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Nov 21 from Boise to San Antonio, returning Fri, Nov 28, priced at $141 just found
Frontier Airlines
Fri, Nov 21 - Sun, Nov 23
BOI
Boise
SAT
San Antonio
$144 Roundtrip, just found
$144
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Nov 21 from Boise to San Antonio, returning Sun, Nov 23, priced at $144 just found
Frontier Airlines
Tue, Nov 25 - Thu, Dec 4
BOI
Boise
SAT
San Antonio
$147 Roundtrip, found 1 hour ago
$147
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, Nov 25 from Boise to San Antonio, returning Thu, Dec 4, priced at $147 found 1 hour ago
Frontier Airlines
Thu, Dec 4 - Thu, Dec 11
BOI
Boise
SAT
San Antonio
$148 Roundtrip, just found
$148
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Dec 4 from Boise to San Antonio, returning Thu, Dec 11, priced at $148 just found
Frontier Airlines
Tue, Nov 25 - Fri, Nov 28
BOI
Boise
SAT
San Antonio
$151 Roundtrip, found 1 hour ago
$151
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, Nov 25 from Boise to San Antonio, returning Fri, Nov 28, priced at $151 found 1 hour ago
Southwest Airlines
Fri, Jan 23 - Mon, Jan 26
BOI
Boise
SAT
San Antonio
$280 Roundtrip, found 2 days ago
$280
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Fri, Jan 23 from Boise to San Antonio, returning Mon, Jan 26, priced at $280 found 2 days ago
Alaska Airlines
Sat, Jan 24 - Sun, Feb 1
BOI
Boise
SAT
San Antonio
$285 Roundtrip, found 18 hours ago
$285
Roundtrip
found 18 hours ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Boise to San Antonio, returning Sun, Feb 1, priced at $285 found 18 hours ago
Delta
Sat, Jan 17 - Sun, Jan 18
BOI
Boise
SAT
San Antonio
$285 Roundtrip, found 1 hour ago
$285
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Jan 17 from Boise to San Antonio, returning Sun, Jan 18, priced at $285 found 1 hour ago
American Airlines
Tue, Jan 13 - Sat, Jan 17
BOI
Boise
SAT
San Antonio
$289 Roundtrip, found 8 hours ago
$289
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Tue, Jan 13 from Boise to San Antonio, returning Sat, Jan 17, priced at $289 found 8 hours ago

Find the cheapest month to fly from Boise (BOI) to San Antonio (SAT)

August is typically the cheapest month to fly

From $158 - $545 per traveler.

Alternative airports near San Antonio

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Antonio Intl. SAT. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $313
SAT
San Antonio Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $313

Frequently asked questions

How much does a flight from Boise Airport (BOI) to San Antonio Intl. Airport (SAT) cost?
Grab a cheap one-way flight from $65 or cheap return flight from $140 from Boise Airport (BOI) to San Antonio Intl. Airport (SAT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Boise Airport (BOI) to San Antonio Intl. Airport (SAT)?
The cheapest month to fly from BOI to SAT is January, when there's less demand. Off-peak season is generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Boise Airport (BOI) to San Antonio Intl. Airport (SAT)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BOI to SAT flight.
How many flights per day from Boise Airport (BOI) to San Antonio Intl. Airport (SAT)?
Nonstop flights from Boise Airport (BOI) to San Antonio Intl. Airport (SAT) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BOI to SAT?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to San Antonio Intl. Airport (SAT)?
Select a flight from Boise Airport (BOI) to San Antonio Intl. Airport (SAT) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to San Antonio Intl. Airport (SAT) last-minute?
Holding off until right before your break to book a flight from BOI to SAT often results in higher prices. While you may come across some last-minute discounts, they're not always guaranteed. Keep your travel plans flexible to maximize your chances of getting a bargain.
Is it cheaper to book a BOI to SAT flight and hotel package?
Compared with arranging hotels and flights separately, booking a BOI to SAT flight and hotel package with Expedia could result in significant savings. Better still, having everything in one convenient place takes the hassle out of planning your trip. Just secure your flights and choose from our extensive range of hotels, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Boise Airport (BOI) to San Antonio Intl. Airport (SAT)?
It's generally possible to reschedule or cancel your BOI to SAT flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Boise
Destination airport
San Antonio Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$140
Distance
1376 mi

Book with confidence

Boise to San Antonio Flights

The cheapest times to fly from Boise to San Antonio

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boise to San Antonio are during the month of January. You can find some of the cheapest flights from Boise to San Antonio with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to San Antonio

Sunday is one of the best days to book for cheap flights from Boise to San Antonio: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boise to San Antonio

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boise to San Antonio in 2025. You can also book with separate airlines for your outbound and return journeys, from $65 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boise to San Antonio flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boise to San Antonio airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boise to San Antonio Flights

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*Available to One Key members.