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$154+ 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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAT
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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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 May 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$188
(CheapOair)

One-way from

$154
(Delta)

Popular in

December

Cheapest in

September

Average price

$382
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San Antonio flights.
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From Idaho to San Antonio
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One-way flight from Idaho to San Antonio
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Highest demand for flights based on searches. 12% potential increase in price ($50 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 May 2025
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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 May 1, 2025.

This CheapOair deal was found by Cheapflights users on 4/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/152:57 pmBOI - SAT
1 stop22h 20mFrontier
Mon 5/193:22 pmSAT - BOI
1 stop23h 15mFrontier
Deal found 4/30$188
This Mytrip deal was found by Cheapflights users on 4/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/135:57 pmGEG - SAT
2 stops15h 40mMultiple Airlines
Sun 6/1510:57 pmSAT - GEG
2 stops20h 10mMultiple Airlines
Deal found 4/28$261
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/142:41 pmBOI - SAT
1 stop8h 18mMultiple Airlines
Sun 5/1810:51 pmSAT - BOI
1 stop13h 30mMultiple Airlines
Deal found 4/29$263
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 7/153:35 pmBOI - SAT
1 stop7h 23mAmerican Airlines
Tue 7/225:00 amSAT - BOI
1 stop6h 54mAmerican Airlines
Deal found 4/30$287
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/145:00 amBOI - SAT
2 stops7h 18mUnited Airlines
Sat 5/171:10 pmSAT - BOI
1 stop5h 50mUnited Airlines
Deal found 4/30$292
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:30 amBOI - SAT
1 stop11h 07mAlaska Airlines
Wed 5/146:35 amSAT - BOI
1 stop6h 41mAlaska Airlines
Deal found 4/28$301
This Delta deal was found by Cheapflights users on 4/28. 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 10/45:45 amGEG - SAT
1 stop5h 47mDelta
Sat 10/46:10 pmSAT - GEG
1 stop7h 29mDelta
Deal found 4/28$307
This Hawaiian Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/82:41 pmBOI - SAT
1 stop8h 18mHawaiian Airlines
Sun 5/116:35 amSAT - BOI
1 stop8h 12mHawaiian Airlines
Deal found 4/29$316
This Delta deal was found by Cheapflights users on 4/29. 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.
Sat 5/311:18 pmBOI - SAT
1 stop7h 38mDelta
Sat 6/148:00 amSAT - BOI
2 stops12h 06mDelta
Deal found 4/29$317
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/221:22 pmGEG - SAT
1 stop7h 40mAmerican Airlines
Sun 5/258:53 amSAT - GEG
1 stop6h 44mAmerican Airlines
Deal found 4/29$325
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/243:21 pmSUN - SAT
1 stop5h 24mDelta
Tue 6/36:10 pmSAT - SUN
1 stop4h 38mDelta
Deal found 4/30$337
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Mon 5/51:52 pmBOI - SAT
2 stops34h 18mSpirit Airlines
Thu 5/810:51 pmSAT - BOI
1 stop13h 30mSpirit Airlines
Deal found 4/29$363

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 May 1, 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

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Thu 5/15

2:57 pm-2:17 pm

1 stop22h 20m

San Antonio

Mon 5/19

3:22 pm-1:37 pm

1 stop23h 15m

$188

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

Fri 6/13

5:57 pm-11:37 am

2 stops15h 40m

San Antonio

Sun 6/15

10:57 pm-5:07 pm

2 stops20h 10m

$261

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Wed 5/14

2:41 pm-11:59 pm

1 stop8h 18m

San Antonio

Sun 5/18

10:51 pm-11:21 am

1 stop13h 30m

$263

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Tue 7/15

7:16 am-2:31 pm

1 stop6h 15m

San Antonio

Tue 7/22

6:55 pm-11:33 pm

1 stop5h 38m

$287

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Wed 5/14

5:00 am-1:18 pm

2 stops7h 18m

San Antonio

Sat 5/17

1:10 pm-6:00 pm

1 stop5h 50m

$292

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Tue 5/6

6:30 am-6:37 pm

1 stop11h 07m

San Antonio

Wed 5/14

6:35 am-12:16 pm

1 stop6h 41m

$301

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

Wed 5/21

6:00 am-1:45 pm

1 stop5h 45m

San Antonio

Tue 5/27

6:10 pm-11:38 pm

1 stop7h 28m

$307

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Thu 5/8

2:41 pm-11:59 pm

1 stop8h 18m

San Antonio

Sun 5/11

6:35 am-1:47 pm

1 stop8h 12m

$316

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

Sat 5/31

1:18 pm-9:56 pm

1 stop7h 38m

San Antonio

Sat 6/14

8:00 am-7:06 pm

2 stops12h 06m

$317

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

Thu 5/22

1:22 pm-11:02 pm

1 stop7h 40m

San Antonio

Sun 5/25

8:53 am-1:37 pm

1 stop6h 44m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 27 results
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2
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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 May 1, 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.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 May 1, 2025.
Read through reviews of airlines operating flights from Idaho to San Antonio, such as Alaska Airlines, Southwest and Delta. 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
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,408 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $154 on Delta. Other airlines that offer cheap prices include American Airlines from $230 and United Airlines from $243 one-way.

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

    When deciding which route to take from Idaho to San Antonio consider Boise Air Term. Gowen Fld - San Antonio, Spokane - San Antonio or Idaho Falls Fanning Field - San Antonio as they are the most popular.

  • 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 Idaho?

Book flights to Idaho if you plan to visit one of these locations
New Braunfels

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Alternative routes for Idaho to San Antonio

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Top 6 airlines flying from Idaho to San Antonio

Discover the top 6 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$140Average$222FlexibilityNo cancel feeOn-time65%
DeltaCheapest$230Average$363FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$387FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$272Average$456FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$282Average$550FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$354Average$548FlexibilityNo cancel feeOn-time75%

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