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Idaho

$84+ Cheap flights from San Antonio (SAT) to Idaho

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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOI
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from San Antonio to Idaho

Keep the following information in mind while searching for San Antonio to Idaho flight deals. Data was last updated July 30, 2025.

Round-trip from

$224
(FlightHub)

One-way from

$122
(CheapOair)

Popular in

November

Cheapest in

January

Average price

$406
From San Antonio to Idaho
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One-way flight from San Antonio to Idaho
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Highest demand for flights based on searches. 21% potential increase in price ($106 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 July 2025
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Find flight deals from San Antonio to Idaho

Cheapest flights from San Antonio to Idaho
Explore the most affordable flight options available from San Antonio to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This CheapOair deal was found by Cheapflights users on 7/28. 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.
Sat 9/133:22 pmSAT - BOI
1 stop21h 15mMultiple Airlines
Sun 9/212:16 pmBOI - SAT
1 stop5h 36mMultiple Airlines
Deal found 7/28$221
This FlightHub deal was found by Cheapflights users on 7/29. 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 10/178:40 pmSAT - BOI
1 stop17h 41mSpirit Airlines
Mon 10/208:58 pmBOI - SAT
1 stop6h 57mSpirit Airlines
Deal found 7/29$224
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Sat 8/166:59 pmSAT - BOI
1 stop17h 47mFrontier
Sun 8/3112:33 pmBOI - SAT
1 stop6h 00mFrontier
Deal found 7/29$235
This Hawaiian Airlines deal was found by Cheapflights users on 7/29. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:40 amSAT - GEG
1 stop7h 57mHawaiian Airlines
Wed 10/298:45 amGEG - SAT
1 stop7h 10mHawaiian Airlines
Deal found 7/29$258
This Delta deal was found by Cheapflights users on 7/29. 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.
Tue 9/237:45 amSAT - GEG
1 stop6h 10mDelta
Sat 10/45:03 pmGEG - SAT
1 stop5h 16mDelta
Deal found 7/29$259
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 9/176:27 amSAT - GEG
1 stop8h 19mAlaska Airlines
Mon 9/221:40 pmGEG - SAT
1 stop8h 23mAlaska Airlines
Deal found 7/29$264
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/171:44 pmSAT - GEG
1 stop6h 55mAmerican Airlines
Mon 9/227:00 amGEG - SAT
1 stop8h 49mAmerican Airlines
Deal found 7/30$265
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 10/16:27 amSAT - BOI
1 stop9h 33mAlaska Airlines
Thu 10/28:46 pmBOI - SAT
1 stop21h 11mAlaska Airlines
Deal found 7/29$267
This American Airlines deal was found by Cheapflights users on 7/29. 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 10/15:00 amSAT - BOI
2 stops9h 17mAmerican Airlines
Thu 10/21:57 pmBOI - SAT
1 stop8h 15mAmerican Airlines
Deal found 7/29$273
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/142:50 pmSAT - GEG
2 stops20h 15mMultiple Airlines
Mon 8/189:55 amGEG - SAT
1 stop7h 28mMultiple Airlines
Deal found 7/29$279
This Delta deal was found by Cheapflights users on 7/28. 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.
Sat 9/137:15 amSAT - BOI
2 stops9h 25mDelta
Sun 9/213:45 pmBOI - SAT
1 stop7h 07mDelta
Deal found 7/28$309
This Southwest deal was found by Cheapflights users on 7/29. 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.
Fri 8/225:00 pmSAT - BOI
2 stops8h 05mSouthwest
Mon 8/254:30 pmBOI - SAT
1 stop5h 25mSouthwest
Deal found 7/29$323

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Idaho 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 July 30, 2025.
Use the filters below to find and compare flights from San Antonio to Idaho that are best for you.

Fly from

San Antonio

Fly to

Idaho

Route

Depart

Return

Price

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Sat 9/13

3:22 pm-11:37 am

1 stop21h 15m

Boise Air Term. Gowen Fld

Sun 9/21

2:16 pm-8:52 pm

1 stop5h 36m

$221

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Fri 10/17

8:40 pm-1:21 pm

1 stop17h 41m

Boise Air Term. Gowen Fld

Mon 10/20

8:58 pm-4:55 am

1 stop6h 57m

$224

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Sat 8/16

6:59 pm-11:46 am

1 stop17h 47m

Boise Air Term. Gowen Fld

Sun 8/31

12:33 pm-7:33 pm

1 stop6h 00m

$235

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Wed 10/22

6:40 am-12:37 pm

1 stop7h 57m

Spokane

Wed 10/29

8:45 am-5:55 pm

1 stop7h 10m

$258

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Tue 9/23

7:45 am-11:55 am

1 stop6h 10m

Spokane

Sat 10/4

5:03 pm-12:19 am

1 stop5h 16m

$259

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Wed 9/17

6:27 am-12:46 pm

1 stop8h 19m

Spokane

Mon 9/22

1:40 pm-12:03 am

1 stop8h 23m

$264

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Wed 9/17

1:44 pm-6:39 pm

1 stop6h 55m

Spokane

Mon 9/22

7:00 am-5:49 pm

1 stop8h 49m

$265

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Wed 10/1

6:27 am-3:00 pm

1 stop9h 33m

Boise Air Term. Gowen Fld

Thu 10/2

8:46 pm-6:57 pm

1 stop21h 11m

$267

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Wed 10/1

5:00 am-1:17 pm

2 stops9h 17m

Boise Air Term. Gowen Fld

Thu 10/2

1:57 pm-11:12 pm

1 stop8h 15m

$273

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Thu 8/14

2:50 pm-9:05 am

2 stops20h 15m

Spokane

Mon 8/18

9:55 am-7:23 pm

1 stop7h 28m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 37 results
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Best time to book a flight from San Antonio to Idaho

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

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

Currently, October is the cheapest month in which you can book a flight from San Antonio to Idaho (average of $314). Flying from San Antonio to Idaho in June is currently the most expensive (average of $398). 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 ID?

Find hourly flight availability from San Antonio to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2025.

When flying from San Antonio to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated July 30, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from San Antonio to Idaho have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Idaho. 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 from for flights from San Antonio to Idaho?

    For a flight from San Antonio to Idaho, you will be flying from San Antonio. San Antonio (SAT) is just 7.6 mi from the center of the city.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $122. Alaska Airlines flights start at $129 while deals on American Airlines start at $174 one-way.

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

    The most popular flight routes from San Antonio to Idaho are San Antonio - Spokane, San Antonio - Boise Air Term. Gowen Fld and San Antonio - Jackson Hole.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from San Antonio to Idaho (average of $314). Flying from San Antonio to Idaho in June is currently the most expensive (average of $398). 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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Alternative routes for San Antonio to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from San Antonio to Idaho

Discover the top 5 airlines that operate flights from San Antonio to Idaho. 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$116Average$190FlexibilityNo cancel feeOn-time65%
DeltaCheapest$230Average$463FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$244Average$386FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$286Average$450FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$286Average$488FlexibilityNo cancel feeOn-time69%

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