What is the cheapest airline that flies from San Antonio to Idaho?

Delta, United Airlines, and Alaska Airlines are the most popular carriers operating from San Antonio to Idaho

What airlines fly to Idaho?

Delta, United Airlines and American Airlines are the top three most popular airlines that fly to Idaho from San Antonio according to our data. Delta is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 6 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

How many flights depart from San Antonio to Idaho on average per week?

The number of flights available between San Antonio and Idaho is 4 per week as of February 2025. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.

When did momondo last update prices for flights from San Antonio Airport to Idaho?

Prices for flights from San Antonio Airport to Idaho are updated daily.

How many operators does momondo search for flights from San Antonio Airport to Idaho?

The number of operators available for flights from San Antonio Airport to Idaho is 6 as of February 2025.

How old do you have to be to fly from San Antonio Airport to Idaho?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Idaho.

What documentation or ID do you need to fly to Idaho?

The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$125 Discover Cheap Flights from San Antonio to Idaho in 2025

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Find the cheapest flights from San Antonio to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

These are some of the best round-trip flight deals from San Antonio to Idaho that have been recently found on momondo from popular airlines, departing in the coming months.

9:35 pm - 12:36 pmSAT-BOI

16h 01m1 stop

1:31 pm - 8:30 pmBOI-SAT

5h 59m1 stop

$192Spirit Airlines

Find Deal

Tue, Apr 1 - Fri, Apr 4

6:15 pm - 12:05 amSAT-BOI

6h 50m1 stop

5:59 pm - 12:20 amBOI-SAT

5h 21m1 stop

$205Delta

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Fri, Apr 11 - Tue, Apr 22

6:50 am - 6:24 pmSAT-BOI

12h 34m2 stops

1:45 pm - 12:30 amBOI-SAT

9h 45m1 stop

$250Delta

Find Deal

Tue, Apr 1 - Fri, Apr 4

6:58 am - 12:33 pmSAT-BOI

6h 35m1 stop

1:51 pm - 10:57 pmBOI-SAT

8h 06m2 stops

$267American Airlines

Find Deal

Mon, Apr 21 - Sat, Apr 26

11:00 am - 9:13 pmSAT-GEG

12h 13m1 stop

3:20 pm - 11:13 pmGEG-SAT

5h 53m1 stop

$289American Airlines

Find Deal

Tue, Mar 18 - Wed, Mar 26

4:55 pm - 12:50 amSAT-BOI

8h 55m2 stops

11:45 am - 11:25 pmBOI-SAT

10h 40m2 stops

$350Southwest

Find Deal

Mon, Apr 21 - Sat, Apr 26

7:00 am - 12:50 pmSAT-GEG

7h 50m1 stop

8:40 pm - 5:38 amGEG-SAT

6h 58m1 stop

$391Hawaiian Airlines

Find Deal

Wed, Aug 20 - Sun, Aug 24

5:25 am - 9:43 amSAT-BOI

5h 18m1 stop

10:39 am - 9:32 pmBOI-SAT

9h 53m2 stops

$432United Airlines

Find Deal

Wed, Jul 9 - Tue, Jul 15

5:30 am - 4:00 pmSAT-BOI

11h 30m2 stops

10:39 am - 9:32 pmBOI-SAT

9h 53m2 stops

$463United Airlines

Find Deal

Wed, Jul 9 - Tue, Jul 15

9:15 pm - 9:45 amSAT-GEG

14h 30m2 stops

5:00 am - 12:30 pmGEG-SAT

5h 30m1 stop

$473Southwest

Find Deal

Fri, Jun 27 - Thu, Jul 3

Spirit Airlines flights from San Antonio to Idaho

Our best Spirit Airlines deals on San Antonio to Idaho flight tickets

Spirit Airlines

Apr 1

SAT9:35 pmSan Antonio

16h 01m

1 stop

BOI12:36 pmBoise Air Term. Gowen Fld

Apr 4

BOI1:31 pmBoise Air Term. Gowen Fld

5h 59m

1 stop

SAT8:30 pmSan Antonio

$192

Find similar

Spirit Airlines

Feb 27

SAT5:45 amSan Antonio

14h 01m

1 stop

BOI6:46 pmBoise Air Term. Gowen Fld

Mar 3

BOI7:41 pmBoise Air Term. Gowen Fld

7h 55m

1 stop

SAT4:36 amSan Antonio

$371

Find similar

Spirit Airlines

Mar 9

SAT8:29 pmSan Antonio

17h 03m

1 stop

BOI12:32 pmBoise Air Term. Gowen Fld

Mar 13

BOI1:31 pmBoise Air Term. Gowen Fld

14h 06m

1 stop

SAT4:37 amSan Antonio

$388

Find similar

Delta flights from San Antonio to Idaho

Our best Delta deals on San Antonio to Idaho flight tickets

Delta

Apr 11

SAT6:15 pmSan Antonio

6h 50m

1 stop

BOI12:05 amBoise Air Term. Gowen Fld

Apr 22

BOI5:59 pmBoise Air Term. Gowen Fld

5h 21m

1 stop

SAT12:20 amSan Antonio

$205

Find similar

Delta

Apr 1

SAT6:50 amSan Antonio

12h 34m

2 stops

BOI6:24 pmBoise Air Term. Gowen Fld

Apr 4

BOI1:45 pmBoise Air Term. Gowen Fld

9h 45m

1 stop

SAT12:30 amSan Antonio

$250

Find similar

Delta

Mar 18

SAT12:35 pmSan Antonio

12h 14m

2 stops

GEG10:49 pmSpokane

Mar 26

GEG5:15 pmSpokane

5h 13m

1 stop

SAT12:28 amSan Antonio

$311

Find similar

How to get the cheapest flight ticket from San Antonio to Idaho

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Idaho?

In general, April is the cheapest month to fly from San Antonio to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $262. If you don’t want to visit Idaho in April, then you should wait until February to fly from San Antonio, when ticket prices are also cheap, with an average price of $280.

What is the cheapest day to depart on your flight to Idaho?

Our data shows that Wednesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $310. On the other hand, Sunday is the most expensive day to depart from San Antonio because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $505.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is at noon. momondo users have found flights departing from San Antonio to Idaho at noon for as low as $369. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $466 per ticket.

How far in advance should I book a flight to Idaho?

You are more likely to see cheaper flights to Idaho from San Antonio when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $401 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from San Antonio for as low as $322 on momondo.

Cheap San Antonio to Idaho flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Idaho

Best Price Found	$125
Fastest flight time	5h 02m
Direct flights	None
Airports in Idaho	4 airports

The best one-way flight to Idaho from San Antonio in the past 72 hours is $125. The best round-trip flight deal from San Antonio to Idaho found on momondo in the last 72 hours is $192.

The fastest flight from San Antonio to Idaho takes 5h 02m

There are no direct flights from San Antonio to Idaho. Popular non-direct routes for this connection are San Antonio Airport - Boise Air Term. Gowen Fld Airport, San Antonio Airport - Spokane Airport and San Antonio Airport - Idaho Falls Fanning Field Airport.

There are 4 airports near Idaho: Idaho Falls Fanning Field (IDA), Spokane (GEG), Boise Air Term. Gowen Fld (BOI), Jackson Hole (JAC)

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When did momondo last update prices for flights from San Antonio Airport to Idaho?
Prices for flights from San Antonio Airport to Idaho are updated daily.
How many operators does momondo search for flights from San Antonio Airport to Idaho?
The number of operators available for flights from San Antonio Airport to Idaho is 6 as of February 2025.
How old do you have to be to fly from San Antonio Airport to Idaho?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from San Antonio to Idaho

Compare and see reviews for airlines that fly from San Antonio to Idaho with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $105	Free Cancellation	Rating 6.3 8,012 reviews	Search Spirit Airlines flights
Delta	PriceFrom $246	Free Cancellation	Rating 8.0 8,203 reviews	Search Delta flights
American Airlines	PriceFrom $280	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $297	Free Cancellation	Rating 7.4 8,754 reviews	Search United Airlines flights
Southwest	PriceFrom $358	Free Cancellation	Rating 8.1 4,395 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to Idaho?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Antonio to Idaho. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from San Antonio to Idaho with flexible booking policies on momondo?

momondo does allow users to show only those flights to Idaho from San Antonio which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Antonio to Idaho?

momondo provides multiple filters to help you find the best flight to Idaho from San Antonio. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from San Antonio to Idaho right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Antonio to Idaho now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho and let you know when they change.