$133 Find Cheap Flights from San Antonio to Idaho - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to Idaho departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from San Antonio to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boise1 stop$282
Idaho Falls
Idaho Falls1 stop$301
Spokane
Spokane2 stops$305
Boise
Boise1 stop$282
Idaho Falls
Idaho Falls1 stop$301
Spokane
Spokane2 stops$305

Book Cheap San Antonio to Idaho Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to Idaho that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to Idaho

Sat, Sep 19 - Mon, Sep 21
Frontier Logo
2:47 pm - 1:55 pm
SAT
-
BOI
24h 08m
1 stop
Frontier Logo
2:50 pm - 2:20 pm
BOI
-
SAT
22h 30m
1 stop
$246Frontier
Sat, Sep 19 - Mon, Sep 21
Frontier Logo
2:47 pm - 1:55 pm
SAT
-
BOI
24h 08m
1 stop
Frontier Logo
2:50 pm - 7:25 pm
BOI
-
SAT
27h 35m
2 stops
$280Frontier
Wed, Nov 4 - Wed, Nov 11
Southwest Logo
6:25 am - 12:55 pm
SAT
-
GEG
8h 30m
1 stop
Southwest Logo
7:40 am - 3:30 pm
GEG
-
SAT
5h 50m
1 stop
$323Southwest
Wed, Sep 16 - Sat, Sep 19
Southwest Logo
6:30 pm - 10:30 pm
SAT
-
GEG
6h 00m
1 stop
Southwest Logo
1:40 pm - 9:45 pm
GEG
-
SAT
6h 05m
1 stop
$323Southwest
Mon, Aug 24 - Sat, Sep 5
Alaska Airlines Logo
5:11 pm - 10:25 pm
SAT
-
GEG
7h 14m
1 stop
Alaska Airlines Logo
7:03 am - 4:13 pm
GEG
-
SAT
7h 10m
1 stop
$323Alaska Airlines
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
6:00 am - 11:54 am
SAT
-
GEG
7h 54m
1 stop
American Airlines Logo
6:30 am - 4:36 pm
GEG
-
SAT
8h 06m
1 stop
$323American Airlines
Wed, Nov 4 - Wed, Nov 11
United Airlines Logo
2:20 pm - 9:11 pm
SAT
-
GEG
8h 51m
2 stops
United Airlines Logo
5:00 am - 12:46 pm
GEG
-
SAT
5h 46m
1 stop
$328United Airlines
Sat, Sep 26 - Tue, Sep 29
Alaska Airlines Logo
5:29 pm - 10:25 pm
SAT
-
GEG
6h 56m
1 stop
Alaska Airlines Logo
5:52 am - 4:19 pm
GEG
-
SAT
8h 27m
1 stop
$335Alaska Airlines
Wed, Aug 26 - Wed, Sep 2
United Airlines Logo
4:39 pm - 10:40 pm
SAT
-
BOI
7h 01m
1 stop
United Airlines Logo
10:31 am - 7:58 pm
BOI
-
SAT
8h 27m
2 stops
$348United Airlines
Fri, Oct 23 - Sat, Oct 31
American Airlines Logo
7:00 am - 11:59 am
SAT
-
GEG
6h 59m
1 stop
American Airlines Logo
6:30 am - 5:46 pm
GEG
-
SAT
9h 16m
2 stops
$375American Airlines
Booking Insights

KAYAK's insights & trends for San Antonio to Idaho flights

Get data-powered insights and trends into flights from San Antonio to Idaho to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Antonio to Idaho?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Antonio to Idaho departing in September.

Flight prices are typical for this route right now.

Flights to Idaho from San Antonio usually cost between $281 and $426 in September.
The lowest price found in the past 5 days was $282 on Frontier (Sep 17-Sep 25).

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to Idaho, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Antonio to Idaho is January, when tickets cost $322 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $545 and $472 respectively.

Find deals

Good to know

Low season

January

Cheapest flight

$133
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from San Antonio to Spokane

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from San Antonio to Idaho?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Antonio to Idaho.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Antonio to Idaho?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Antonio to Idaho is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Antonio to Idaho?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Antonio to Idaho with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Antonio to Idaho?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Antonio to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from San Antonio to Idaho

Information on your arrival and departure airports

San Antonio (SAT)