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San Antonio

$69+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — SAT
dic. 5 — dic. 121
vie. 12/5
vie. 12/12
1 adult, Economy
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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 noviembre 5, 2025.

This Frontier deal was found by Cheapflights users on 11/3. 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.
vie. 11/2112:20 pmGEG - SAT
1 stop10h 00mFrontier
vie. 11/287:00 amSAT - GEG
1 stop6h 25mFrontier
Deal found 11/3$141
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
jue. 12/412:08 pmGEG - SAT
1 stop28h 52mMultiple Airlines
mié. 12/106:10 pmSAT - GEG
1 stop28h 13mMultiple Airlines
Deal found 11/4$200
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
jue. 12/412:08 pmGEG - SAT
1 stop28h 52mMultiple Airlines
jue. 12/111:51 pmSAT - GEG
1 stop8h 32mMultiple Airlines
Deal found 11/4$229
This Delta deal was found by Cheapflights users on 11/3. 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.
jue. 11/271:15 pmGEG - SAT
1 stop5h 57mDelta
vie. 12/56:00 pmSAT - GEG
2 stops18h 39mDelta
Deal found 11/3$272
This Delta deal was found by Cheapflights users on 11/3. 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.
lun. 11/249:20 amGEG - SAT
2 stops13h 15mDelta
mié. 12/312:46 pmSAT - GEG
2 stops12h 03mDelta
Deal found 11/3$274
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
dom. 11/234:57 pmGEG - SAT
1 stop18h 08mMultiple Airlines
jue. 12/41:51 pmSAT - GEG
1 stop8h 32mMultiple Airlines
Deal found 11/3$275
This Delta deal was found by Cheapflights users on 11/3. 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.
mié. 12/1011:10 amBOI - SAT
1 stop5h 00mDelta
lun. 12/156:00 pmSAT - BOI
1 stop7h 42mDelta
Deal found 11/3$285
This Delta deal was found by Cheapflights users on 11/3. 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.
jue. 11/271:15 pmGEG - SAT
1 stop5h 57mDelta
mié. 12/312:46 pmSAT - GEG
1 stop7h 51mDelta
Deal found 11/3$288
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
sáb. 12/2712:54 pmBOI - SAT
1 stop21h 27mFrontier
mié. 12/312:09 pmSAT - BOI
1 stop22h 34mFrontier
Deal found 11/4$289
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
dom. 11/234:57 pmGEG - SAT
1 stop18h 08mMultiple Airlines
vie. 12/59:25 pmSAT - GEG
2 stops39h 48mMultiple Airlines
Deal found 11/3$289
This Delta deal was found by Cheapflights users on 11/5. 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.
mié. 12/37:30 amSUN - SAT
1 stop5h 17mDelta
mar. 12/96:00 pmSAT - SUN
1 stop5h 04mDelta
Deal found 11/5$291
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
mar. 11/2511:45 amGEG - SAT
1 stop23h 20mMultiple Airlines
jue. 12/41:51 pmSAT - GEG
1 stop8h 32mMultiple Airlines
Deal found 11/3$291

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 noviembre 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$141
(Frontier)

One-way from

$69
(Priceline)

Popular in

December

Cheapest in

August

Average price

$429
Provider with most accurate pricing for Boise Air Term. Gowen Fld-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-San Antonio flights.
Search Deals
From Idaho to San Antonio
Search Deals
One-way flight from Idaho to San Antonio
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 noviembre 5, 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

vie. 11/21

12:20 pm-12:20 am

1 stop10h 00m

San Antonio

vie. 11/28

7:00 am-11:25 am

1 stop6h 25m

$141

BoiseSan Antonio

BOI - SAT

BOISAT

Boise Air Term. Gowen Fld

jue. 1/1

12:38 pm-12:17 am

1 stop10h 39m

San Antonio

dom. 1/4

6:45 am-11:43 am

1 stop5h 58m

$159

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

jue. 1/22

12:23 pm-12:29 pm

2 stops22h 06m

San Antonio

dom. 1/25

1:24 pm-8:08 pm

1 stop8h 44m

$219

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

jue. 12/4

12:08 pm-7:00 pm

1 stop28h 52m

San Antonio

jue. 12/11

1:51 pm-8:23 pm

1 stop8h 32m

$229

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

sáb. 1/17

6:35 am-4:30 pm

1 stop7h 55m

San Antonio

mar. 1/20

6:15 pm-9:45 pm

1 stop5h 30m

$271

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

dom. 2/15

5:51 am-2:18 pm

1 stop6h 27m

San Antonio

jue. 2/19

7:10 pm-11:12 pm

1 stop6h 02m

$271

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

jue. 11/27

1:15 pm-9:12 pm

1 stop5h 57m

San Antonio

mié. 12/3

12:46 pm-12:11 am

2 stops13h 25m

$272

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

lun. 11/24

9:20 am-12:35 am

2 stops13h 15m

San Antonio

vie. 12/5

6:00 pm-8:33 am

2 stops16h 33m

$274

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

jue. 12/4

9:25 am-11:49 pm

2 stops12h 24m

San Antonio

mié. 12/10

6:25 am-2:55 pm

2 stops10h 30m

$274

SpokaneSan Antonio

GEG - SAT

GEGSAT

Spokane

jue. 11/27

9:20 am-9:12 pm

2 stops9h 52m

San Antonio

jue. 12/4

7:05 am-6:56 pm

2 stops13h 51m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 60 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, March is the cheapest month in which you can book a flight from Idaho to San Antonio (average of $116). Flying from Idaho to San Antonio in January is currently the most expensive (average of $244). 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 noviembre 5, 2025.

It’s typically best to fly out from Idaho to San Antonio in the evening. Doing so could potentially save you 44% on the flight price compared to flying in the morning, which is usually more expensive.

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

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.

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

    Frontier, Southwest, and Delta can get you from Idaho to San Antonio in just under 5h. Your travel time can differ by up to 5h. There are 1376 mi between Idaho and San Antonio. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $69 on Frontier. Other airlines that offer cheap prices include Delta from $177 and American Airlines from $189 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 Spokane - San Antonio, Boise Air Term. Gowen Fld - 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, March is the cheapest month in which you can book a flight from Idaho to San Antonio (average of $116). Flying from Idaho to San Antonio in January is currently the most expensive (average of $244). 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

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Top 4 airlines flying from Idaho to San Antonio

Discover the top 4 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 noviembre 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$226Average$476FlexibilityNo cancel feeOn-time69%
DeltaCheapest$230Average$362FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$248Average$459FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$261Average$472FlexibilityNo cancel feeOn-time71%

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