Idaho

$117+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOI
Apr 27 — May 41
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Cheap 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 March 28, 2026.

This Frontier deal was found by Cheapflights users on 3/25. 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 4/96:45 am
SAT
-
BOI
1 stop5h 23m
Frontier
Sun 4/1212:03 pm
BOI
-
SAT
1 stop11h 16m
Frontier
Deal found 3/25$200
This CheapOair deal was found by Cheapflights users on 3/26. 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 4/154:49 pm
SAT
-
BOI
1 stop19h 19m
Frontier
Sun 4/1911:53 am
BOI
-
SAT
1 stop25h 22m
Frontier
Deal found 3/26$236
This Kiwi.com deal was found by Cheapflights users on 3/25. 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.
Wed 4/87:45 am
SAT
-
BOI
1 stop28h 23m
Frontier
Thu 4/1611:53 am
BOI
-
SAT
1 stop25h 22m
Frontier
Deal found 3/25$238
This Southwest deal was found by Cheapflights users on 3/23. 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.
Tue 6/26:55 pm
SAT
-
BOI
1 stop5h 35m
Southwest
Tue 6/93:15 pm
BOI
-
SAT
1 stop8h 00m
Southwest
Deal found 3/23$264
This Southwest deal was found by Cheapflights users on 3/25. 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 4/297:15 am
SAT
-
BOI
1 stop7h 05m
Southwest
Sat 5/26:05 am
BOI
-
SAT
1 stop5h 00m
Southwest
Deal found 3/25$290
This Southwest deal was found by Cheapflights users on 3/25. 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.
Tue 4/288:20 am
SAT
-
BOI
2 stops8h 05m
Southwest
Sat 5/26:05 am
BOI
-
SAT
2 stops7h 45m
Southwest
Deal found 3/25$300
This Delta deal was found by Cheapflights users on 3/25. 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 5/166:35 am
SAT
-
GEG
1 stop7h 26m
Delta
Wed 5/2012:27 pm
GEG
-
SAT
1 stop10h 17m
Delta
Deal found 3/25$311
This Southwest deal was found by Cheapflights users on 3/23. 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.
Sat 5/95:40 am
SAT
-
GEG
1 stop6h 45m
Southwest
Tue 5/122:40 pm
GEG
-
SAT
1 stop6h 50m
Southwest
Deal found 3/23$312
This United Airlines deal was found by Cheapflights users on 3/25. 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.
Tue 4/284:45 pm
SAT
-
BOI
1 stop5h 37m
United Airlines
Fri 5/16:30 am
BOI
-
SAT
1 stop5h 26m
United Airlines
Deal found 3/25$317
This United Airlines deal was found by Cheapflights users on 3/23. 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 5/92:25 pm
SAT
-
GEG
2 stops8h 51m
United Airlines
Tue 5/126:00 am
GEG
-
SAT
2 stops12h 49m
United Airlines
Deal found 3/23$327
This Southwest deal was found by Cheapflights users on 3/25. 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 5/206:50 am
SAT
-
GEG
1 stop8h 15m
Southwest
Wed 5/202:40 pm
GEG
-
SAT
1 stop6h 50m
Southwest
Deal found 3/25$333
This Delta deal was found by Cheapflights users on 3/25. 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 9/196:05 pm
SAT
-
IDA
1 stop5h 09m
Delta
Sat 9/266:50 pm
IDA
-
SAT
1 stop4h 54m
Delta
Deal found 3/25$339

Find 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 March 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$200
(Frontier)

One-way from

$117
(CheapOair)

Popular in

March

Cheapest in

September

Average price

$653
Provider with most accurate pricing for San Antonio-Boise Air Term. Gowen Fld flight deals.
Provider most trusted by Cheapflights users for San Antonio-Boise Air Term. Gowen Fld flights.
From San Antonio to Idaho
One-way flight from San Antonio to Idaho
Highest demand for flights based on searches. 12% potential increase in price ($56 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).
Average for round-trip flights in March 2026

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 March 28, 2026.
Use the filters below to find and compare flights from San Antonio to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Wed 6/3

4:55 pm-11:20 pm

2 stops7h 25m

Boise Air Term. Gowen Fld

Wed 6/10

11:45 am-12:30 am

2 stops11h 45m

$281

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sat 5/16

6:35 am-12:01 pm

1 stop7h 26m

Spokane

Wed 5/20

12:27 pm-12:44 am

1 stop10h 17m

$311

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sat 5/9

5:40 am-10:25 am

1 stop6h 45m

Spokane

Tue 5/12

2:40 pm-11:30 pm

1 stop6h 50m

$312

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sat 5/9

2:25 pm-9:16 pm

2 stops8h 51m

Spokane

Tue 5/12

6:00 am-8:49 pm

2 stops12h 49m

$327

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Wed 5/20

6:20 am-1:05 pm

2 stops8h 45m

Spokane

Wed 5/20

2:40 pm-11:30 pm

1 stop6h 50m

$338

San AntonioIdaho Falls

SAT - IDA

SATIDA

San Antonio

Sat 9/19

6:05 pm-10:14 pm

1 stop5h 09m

Idaho Falls Fanning Field

Sat 9/26

6:50 pm-12:44 am

1 stop4h 54m

$339

San AntonioJackson

SAT - JAC

SATJAC

San Antonio

Sat 4/11

11:46 am-8:53 pm

2 stops10h 07m

Jackson Hole

Wed 4/15

10:40 am-7:48 pm

2 stops8h 08m

$369

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Wed 4/15

4:45 pm-10:35 pm

1 stop6h 50m

Boise Air Term. Gowen Fld

Sat 4/18

7:11 am-8:42 pm

2 stops12h 31m

$385

San AntonioJackson

SAT - JAC

SATJAC

San Antonio

Wed 5/6

7:00 am-12:14 pm

1 stop6h 14m

Jackson Hole

Sun 5/10

7:00 am-5:20 pm

1 stop9h 20m

$391

San AntonioJackson

SAT - JAC

SATJAC

San Antonio

Fri 6/12

6:31 am-12:15 pm

1 stop6h 44m

Jackson Hole

Tue 6/16

6:06 pm-12:16 am

1 stop5h 10m

$391

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 48 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from San Antonio to Idaho (average of $108). Flying from San Antonio to Idaho in March is currently the most expensive (average of $276). 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.

How much does it cost to fly round-trip from San Antonio to Idaho?

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 March 28, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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.

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 $281, Southwest can have you in Idaho from San Antonio in 7h 25m. Airlines will cover a distance of 1376 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 Frontier, which is currently one of the cheapest options available, starting at $81. United Airlines flights start at $127 while deals on Southwest start at $139 one-way.

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

  • 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, September is the cheapest month in which you can book a flight from San Antonio to Idaho (average of $108). Flying from San Antonio to Idaho in March is currently the most expensive (average of $276). 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.

Top 4 airlines flying from San Antonio to Idaho

Discover the top 4 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 March 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$194Average$403FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$244Average$406FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$271Average$374FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$286Average$458FlexibilityNo cancel feeOn-time69%

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