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Idaho

$156+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOI
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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 September 15, 2025.

Round-trip from

$207
(Delta)

One-way from

$156
(Kiwi.com)

Popular in

November

Cheapest in

August

Average price

$550
From San Antonio to Idaho
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One-way flight from San Antonio to Idaho
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($103 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 15, 2025.

This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/28:20 pmSAT - GEG
1 stop16h 38mFrontier
Thu 10/912:03 pmGEG - SAT
1 stop5h 38mFrontier
Deal found 9/15$210
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/259:33 pmSAT - BOI
2 stops15h 04mFrontier
Thu 10/212:22 pmBOI - SAT
1 stop5h 53mFrontier
Deal found 9/13$239
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/289:47 pmSAT - BOI
1 stop23h 44mMultiple Airlines
Thu 10/212:22 pmBOI - SAT
1 stop22h 24mMultiple Airlines
Deal found 9/13$240
This Frontier deal was found by Cheapflights users on 9/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/84:20 pmSAT - BOI
2 stops20h 28mFrontier
Thu 11/1312:33 pmBOI - SAT
1 stop6h 10mFrontier
Deal found 9/15$245
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 10/177:56 pmSAT - GEG
1 stop6h 31mAlaska Airlines
Tue 10/211:31 pmGEG - SAT
1 stop8h 33mAlaska Airlines
Deal found 9/12$254
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/184:10 pmSAT - GEG
1 stop7h 28mDelta
Mon 10/204:50 pmGEG - SAT
1 stop5h 41mDelta
Deal found 9/14$271
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/181:41 pmSAT - GEG
2 stops11h 34mUnited Airlines
Tue 10/211:38 pmGEG - SAT
1 stop5h 17mUnited Airlines
Deal found 9/14$276
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:32 amSAT - BOI
1 stop9h 40mHawaiian Airlines
Mon 11/102:20 pmBOI - SAT
1 stop8h 45mHawaiian Airlines
Deal found 9/14$290
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/28:20 pmSAT - BOI
1 stop16h 17mMultiple Airlines
Tue 10/74:25 pmBOI - SAT
1 stop6h 39mMultiple Airlines
Deal found 9/14$310
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:56 pmSAT - GEG
1 stop6h 31mAlaska Airlines
Tue 10/141:31 pmGEG - SAT
1 stop8h 33mAlaska Airlines
Deal found 9/14$310
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:00 amSAT - GEG
1 stop6h 43mAmerican Airlines
Mon 10/203:10 pmGEG - SAT
1 stop6h 17mAmerican Airlines
Deal found 9/14$311
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:00 amSAT - GEG
2 stops12h 44mDelta
Tue 10/2111:20 amGEG - SAT
2 stops10h 26mDelta
Deal found 9/14$314

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 September 15, 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

Tue 3/3

6:30 am-2:09 pm

1 stop8h 39m

Boise Air Term. Gowen Fld

Wed 3/4

5:45 pm-12:45 am

1 stop6h 00m

$207

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Thu 10/2

8:20 pm-10:58 am

1 stop16h 38m

Spokane

Thu 10/9

12:03 pm-7:41 pm

1 stop5h 38m

$210

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 9/25

9:33 pm-11:37 am

2 stops15h 04m

Boise Air Term. Gowen Fld

Thu 10/2

12:22 pm-7:15 pm

1 stop5h 53m

$239

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Sat 11/8

3:12 pm-11:48 am

1 stop21h 36m

Boise Air Term. Gowen Fld

Thu 11/13

12:33 pm-7:43 pm

1 stop6h 10m

$261

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sat 10/18

7:58 am-11:43 am

1 stop5h 45m

Spokane

Tue 10/21

5:40 am-3:47 pm

1 stop8h 07m

$271

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sat 10/18

4:10 pm-9:38 pm

1 stop7h 28m

Spokane

Mon 10/20

4:50 pm-12:31 am

1 stop5h 41m

$271

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sat 10/18

1:41 pm-11:15 pm

2 stops11h 34m

Spokane

Tue 10/21

1:38 pm-8:55 pm

1 stop5h 17m

$276

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 11/6

6:32 am-3:12 pm

1 stop9h 40m

Boise Air Term. Gowen Fld

Mon 11/10

2:20 pm-12:05 am

1 stop8h 45m

$290

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Tue 10/7

7:56 pm-12:27 am

1 stop6h 31m

Spokane

Tue 10/14

1:31 pm-12:04 am

1 stop8h 33m

$310

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sat 10/18

7:00 am-11:43 am

1 stop6h 43m

Spokane

Mon 10/20

3:10 pm-11:27 pm

1 stop6h 17m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 44 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 September 15, 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 September 15, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines 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.
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,015 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from San Antonio to Idaho?

    For as low as $271, Delta can have you in Idaho from San Antonio in 5h 45m. Airlines will cover a distance of 1609 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $186. Spirit Airlines flights start at $206 while deals on Alaska Airlines start at $226 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 - Jackson Hole and San Antonio - Boise Air Term. Gowen Fld.

  • 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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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$79Average$233FlexibilityNo cancel feeOn-time65%
DeltaCheapest$204Average$450FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$244Average$396FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$286Average$446FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$286Average$483FlexibilityNo cancel feeOn-time69%

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