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Idaho

$69+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — BOI
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
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 November 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$135
(Frontier)

One-way from

$69
(Frontier)

Popular in

March

Cheapest in

August

Average price

$538
Provider with most accurate pricing for San Antonio-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Boise Air Term. Gowen Fld flights.
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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. 3% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 5, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/273:23 pmSAT - GEG
1 stop22h 02mFrontier
Thu 12/412:08 pmGEG - SAT
1 stop28h 52mFrontier
Deal found 11/4$135
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.
Thu 11/273:23 pmSAT - GEG
1 stop22h 02mMultiple Airlines
Thu 12/49:13 pmGEG - SAT
2 stops19h 47mMultiple Airlines
Deal found 11/4$240
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/272:46 pmSAT - GEG
2 stops19h 50mDelta
Thu 12/411:19 amGEG - SAT
2 stops10h 30mDelta
Deal found 11/4$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.
Mon 12/11:50 pmSAT - GEG
1 stop7h 14mMultiple Airlines
Thu 12/412:08 pmGEG - SAT
1 stop28h 52mMultiple Airlines
Deal found 11/3$287
This Delta deal was found by Cheapflights users on 11/2. 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.
Thu 12/256:40 amSAT - GEG
1 stop7h 26mDelta
Tue 1/1312:55 pmGEG - SAT
1 stop8h 35mDelta
Deal found 11/2$288
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:46 pmSAT - BOI
2 stops10h 30mDelta
Sun 12/71:54 pmBOI - SAT
2 stops9h 43mDelta
Deal found 11/4$294
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.
Thu 12/2510:18 amSAT - BOI
2 stops29h 46mMultiple Airlines
Mon 1/59:46 pmBOI - SAT
1 stop6h 49mMultiple Airlines
Deal found 11/3$301
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.
Thu 11/273:23 pmSAT - BOI
1 stop21h 30mMultiple Airlines
Sun 11/309:22 pmBOI - SAT
2 stops11h 48mMultiple Airlines
Deal found 11/4$306
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:34 pmSAT - JAC
1 stop5h 03mUnited Airlines
Wed 12/102:49 pmJAC - SAT
1 stop5h 04mUnited Airlines
Deal found 11/4$309
This Alaska Airlines deal was found by Cheapflights users on 11/2. 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 12/56:55 pmSAT - GEG
1 stop7h 29mAlaska Airlines
Tue 12/98:47 pmGEG - SAT
1 stop19h 12mAlaska Airlines
Deal found 11/2$314
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:00 amSAT - BOI
1 stop16h 45mAlaska Airlines
Fri 12/58:26 pmBOI - SAT
1 stop20h 33mAlaska Airlines
Deal found 11/4$324
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:05 amSAT - BOI
1 stop6h 45mSouthwest
Mon 1/55:40 pmBOI - SAT
1 stop4h 50mSouthwest
Deal found 11/3$325

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 November 5, 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 AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Thu 11/27

3:23 pm-11:25 am

1 stop22h 02m

Spokane

Thu 12/4

12:08 pm-7:00 pm

1 stop28h 52m

$135

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Fri 12/12

9:25 pm-11:13 am

2 stops39h 48m

Spokane

Sat 12/20

12:02 pm-12:17 am

1 stop10h 15m

$232

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Thu 11/27

2:46 pm-8:36 am

2 stops19h 50m

Spokane

Thu 12/4

11:19 am-11:49 pm

2 stops10h 30m

$274

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Wed 12/3

4:59 pm-12:11 am

2 stops9h 12m

Spokane

Wed 12/10

11:19 am-11:49 pm

2 stops10h 30m

$274

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Sat 12/13

7:00 am-11:13 am

2 stops30h 13m

Spokane

Sat 12/20

12:02 pm-11:21 am

1 stop21h 19m

$282

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 1/15

6:46 pm-10:52 am

1 stop17h 06m

Boise Air Term. Gowen Fld

Thu 1/22

9:02 am-5:45 pm

1 stop7h 43m

$285

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Thu 1/15

6:06 am-1:45 pm

1 stop8h 39m

Boise Air Term. Gowen Fld

Thu 1/22

1:58 pm-8:50 pm

1 stop5h 52m

$285

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Tue 3/3

5:21 am-12:31 pm

1 stop8h 10m

Boise Air Term. Gowen Fld

Wed 3/4

1:41 pm-12:36 am

1 stop9h 55m

$285

San AntonioSpokane

SAT - GEG

SATGEG

San Antonio

Fri 12/12

9:25 pm-11:13 am

2 stops39h 48m

Spokane

Sun 12/21

12:02 pm-12:17 am

1 stop10h 15m

$293

San AntonioBoise

SAT - BOI

SATBOI

San Antonio

Wed 12/3

12:46 pm-10:16 pm

2 stops10h 30m

Boise Air Term. Gowen Fld

Sun 12/7

1:54 pm-12:37 am

2 stops9h 43m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 59 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, 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 July is currently the most expensive (average of $260). 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 November 5, 2025.

A simple way to save on the total cost of your ticket is to fly from San Antonio to Idaho in the evening. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from San Antonio to Idaho?

Use this chart to determine the cheapest time to fly round-trip from San Antonio to Idaho. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Antonio to Idaho flight should consider departing on Wednesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 5, 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
4,240 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

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
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

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
7.9
Good
8,004 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

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
9,002 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

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
11,042 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

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
8,115 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

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 $285, Frontier can have you in Idaho from San Antonio in 17h 06m. 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 $69. American Airlines flights start at $135 while deals on Delta start at $136 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 - Boise Air Term. Gowen Fld, San Antonio - Jackson Hole and San Antonio - Spokane.

  • 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 July is currently the most expensive (average of $260). 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 November 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$79Average$248FlexibilityNo cancel feeOn-time65%
DeltaCheapest$194Average$420FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$244Average$406FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$274Average$427FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$286Average$465FlexibilityNo cancel feeOn-time69%

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