San Antonio

$92+ Cheap flights from Idaho to San Antonio (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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAT
Aug 12 — Aug 191
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Cheap flight deals from Idaho to San Antonio

Keep the following information in mind while searching for Idaho to San Antonio flight deals. Data was last updated August 7, 2025.

Round-trip from

$181
(Southwest)

One-way from

$92
(Delta)

Popular in

December

Cheapest in

August

Average price

$286
From Idaho to San Antonio
One-way flight from Idaho to San Antonio
Highest demand for flights based on searches. 9% potential increase in price ($39 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find flight deals from Idaho to San Antonio

Cheapest flights from Idaho to San Antonio
Explore the most affordable flight options available from Idaho to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2025.

This Southwest deal was found by Cheapflights users on 8/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:15 amBOI - SAT
1 stop5h 00mSouthwest
Tue 12/95:35 amSAT - BOI
1 stop5h 40mSouthwest
Deal found 8/6$181
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2912:33 pmGEG - SAT
1 stop6h 52mAmerican Airlines
Tue 11/412:55 pmSAT - GEG
1 stop5h 47mAmerican Airlines
Deal found 8/5$183
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/183:45 pmBOI - SAT
1 stop7h 07mDelta
Mon 9/226:02 pmSAT - BOI
1 stop6h 57mDelta
Deal found 8/7$195
This American Airlines deal was found by Cheapflights users on 8/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:35 amBOI - SAT
1 stop9h 23mAmerican Airlines
Tue 9/26:00 amSAT - BOI
1 stop7h 46mAmerican Airlines
Deal found 8/6$198
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/161:57 pmBOI - SAT
2 stops8h 03mAmerican Airlines
Tue 9/232:52 pmSAT - BOI
1 stop6h 10mAmerican Airlines
Deal found 8/5$200
This American Airlines deal was found by Cheapflights users on 8/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/111:30 pmGEG - SAT
1 stop8h 12mAmerican Airlines
Sun 9/146:36 pmSAT - GEG
1 stop6h 01mAmerican Airlines
Deal found 8/6$205
This Southwest deal was found by Cheapflights users on 8/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/114:55 pmBOI - SAT
1 stop5h 20mSouthwest
Mon 9/157:10 pmSAT - BOI
1 stop6h 15mSouthwest
Deal found 8/6$208
This Southwest deal was found by Cheapflights users on 8/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/312:45 pmBOI - SAT
1 stop9h 05mSouthwest
Sun 9/76:30 amSAT - BOI
1 stop6h 05mSouthwest
Deal found 8/6$210
This FlightHub deal was found by Cheapflights users on 8/6. 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.
Fri 10/178:58 pmBOI - SAT
1 stop6h 57mSpirit Airlines
Sat 10/256:00 amSAT - BOI
1 stop8h 21mSpirit Airlines
Deal found 8/6$213
This Alaska Airlines deal was found by Cheapflights users on 8/5. 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.
Fri 10/318:50 amBOI - SAT
1 stop8h 05mAlaska Airlines
Mon 11/36:32 amSAT - BOI
1 stop9h 40mAlaska Airlines
Deal found 8/5$218
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/193:45 pmBOI - SAT
1 stop7h 07mDelta
Thu 9/254:00 pmSAT - BOI
1 stop8h 00mDelta
Deal found 8/5$219
This American Airlines deal was found by Cheapflights users on 8/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/31:57 pmBOI - SAT
2 stops8h 03mAmerican Airlines
Sun 9/76:59 pmSAT - BOI
1 stop5h 36mAmerican Airlines
Deal found 8/6$224

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho 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, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2025.
Use the filters below to find and compare flights from Idaho to San Antonio that are best for you.

Fly from

Idaho

Fly to

San Antonio

Route

Depart

Return

Price

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

Wed 10/29

12:33 pm-9:25 pm

1 stop6h 52m

San Antonio

Tue 11/4

12:55 pm-4:42 pm

1 stop5h 47m

$183

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Thu 9/18

3:45 pm-11:52 pm

1 stop7h 07m

San Antonio

Mon 9/22

6:02 pm-11:59 pm

1 stop6h 57m

$195

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Thu 8/28

6:35 am-4:58 pm

1 stop9h 23m

San Antonio

Tue 9/2

6:00 am-12:46 pm

1 stop7h 46m

$198

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Tue 9/16

1:57 pm-11:00 pm

2 stops8h 03m

San Antonio

Tue 9/23

2:52 pm-8:02 pm

1 stop6h 10m

$200

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

Thu 9/11

1:30 pm-11:42 pm

1 stop8h 12m

San Antonio

Sun 9/14

6:36 pm-10:37 pm

1 stop6h 01m

$205

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Thu 9/11

4:55 pm-11:15 pm

1 stop5h 20m

San Antonio

Mon 9/15

7:10 pm-12:25 am

1 stop6h 15m

$208

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Wed 9/3

12:45 pm-10:50 pm

1 stop9h 05m

San Antonio

Sun 9/7

6:30 am-11:35 am

1 stop6h 05m

$210

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 10/17

8:58 pm-4:55 am

1 stop6h 57m

San Antonio

Sat 10/25

6:00 am-1:21 pm

1 stop8h 21m

$213

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 10/31

8:50 am-5:55 pm

1 stop8h 05m

San Antonio

Sat 11/1

6:32 am-3:12 pm

1 stop9h 40m

$218

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Fri 9/19

5:43 pm-12:19 am

1 stop5h 36m

San Antonio

Mon 9/22

6:05 pm-12:15 am

1 stop7h 10m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/5

Showing 1-10 of 50 results
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Best time to book a flight from Idaho to San Antonio

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

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

Currently, August is the cheapest month in which you can book a flight from Idaho to San Antonio (average of $295). Flying from Idaho 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 ID to SAT?

Find hourly flight availability from Idaho 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 August 7, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to San Antonio as you normally would.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated August 7, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Idaho to San Antonio. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
8.0
Very good

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

Boarding

8.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

Related info for your journey

Find useful and relevant information for your journey from Idaho 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 airport do you fly into for flights to San Antonio from Idaho?

    Most people fly into San Antonio (SAT) if they book a flight to San Antonio from Idaho. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

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

    One-way options have recently been found by users for as low as $92 on Delta. Other airlines that offer cheap prices include Alaska Airlines from $97 and American Airlines from $103 one-way.

  • What are the most popular routes from Idaho to San Antonio?

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Idaho to San Antonio (average of $295). Flying from Idaho 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

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Alternative routes for Idaho to San Antonio

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

Top 5 airlines flying from Idaho to San Antonio

Discover the top 5 airlines that operate flights from Idaho to San Antonio. 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 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$130Average$198FlexibilityNo cancel feeOn-time65%
DeltaCheapest$230Average$361FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$432FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$272Average$446FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$471FlexibilityNo cancel feeOn-time69%

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