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$29+ Cheap flights from Gilbert, AZ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SAT
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Find cheap flights from Gilbert to San Antonio with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Gilbert to San Antonio are usually found in October or August, booked 53 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Gilbert to San Antonio

Cheapest flights from Gilbert to San Antonio
Explore the most affordable flight options available from Gilbert to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This CheapOair deal was found by Cheapflights users on 12/17. 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 12/256:15 amPHX - SAT
Nonstop2h 08mFrontier
Thu 1/16:45 amSAT - PHX
1 stop26h 36mFrontier
Deal found 12/17$122
This Super.com deal was found by Cheapflights users on 12/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:15 amPHX - SAT
Nonstop2h 08mFrontier
Thu 1/110:18 amSAT - PHX
Nonstop2h 34mFrontier
Deal found 12/16$162
This Frontier deal was found by Cheapflights users on 12/16. 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 12/256:15 amPHX - SAT
Nonstop2h 08mFrontier
Tue 12/3010:18 amSAT - PHX
Nonstop2h 34mFrontier
Deal found 12/16$164
This Super.com deal was found by Cheapflights users on 12/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/203:43 pmPHX - SAT
1 stop7h 34mFrontier
Thu 12/2510:18 amSAT - PHX
Nonstop2h 34mFrontier
Deal found 12/16$167
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/256:15 amPHX - SAT
Nonstop2h 08mFrontier
Mon 12/2912:18 pmSAT - PHX
1 stop13h 11mFrontier
Deal found 12/17$178
This Frontier deal was found by Cheapflights users on 12/17. 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.
Mon 12/2910:31 pmPHX - SAT
1 stop11h 50mFrontier
Thu 1/110:18 amSAT - PHX
Nonstop2h 34mFrontier
Deal found 12/17$187

Find flight deals from Gilbert to San Antonio

Keep the following information in mind while searching for Gilbert to San Antonio flight deals. Data was last updated December 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$100
(Kiwi.com)

One-way from

$29
(Frontier)

Popular in

May

Cheapest in

October

Average price

$282
Provider with most accurate pricing for Phoenix-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Phoenix-San Antonio flights.
Search Deals
From Gilbert to San Antonio
Search Deals
One-way flight from Gilbert to San Antonio
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Gilbert 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 December 18, 2025.
Use the filters below to find and compare flights from Gilbert to San Antonio that are best for you.

Fly from

Gilbert

Fly to

San Antonio

Route

Depart

Return

Price

PhoenixSan Antonio

PHX - SAT

PHXSAT

Phoenix Sky Harbor Intl

Thu 1/15

9:18 am-3:14 pm

1 stop4h 56m

San Antonio

Sun 1/18

5:02 pm-6:42 pm

Nonstop2h 40m

$110

PhoenixSan Antonio

PHX - SAT

PHXSAT

Phoenix Sky Harbor Intl

Thu 1/8

1:00 pm-4:08 pm

Nonstop2h 08m

San Antonio

Thu 1/15

4:06 pm-12:59 am

1 stop9h 53m

$121

PhoenixSan Antonio

PHX - SAT

PHXSAT

Phoenix Sky Harbor Intl

Thu 1/8

1:00 pm-4:08 pm

Nonstop2h 08m

San Antonio

Mon 1/12

12:21 pm-9:30 pm

1 stop10h 09m

$121

PhoenixSan Antonio

PHX - SAT

PHXSAT

Phoenix Sky Harbor Intl

Thu 1/1

6:15 am-9:23 am

Nonstop2h 08m

San Antonio

Thu 1/8

10:13 am-8:13 pm

1 stop11h 00m

$136

PhoenixSan Antonio

PHX - SAT

PHXSAT

Phoenix Sky Harbor Intl

Tue 2/17

6:29 pm-4:17 pm

1 stop20h 48m

San Antonio

Sat 2/21

7:56 pm-6:31 pm

1 stop23h 35m

$146

PhoenixSan Antonio

PHX - SAT

PHXSAT

Phoenix Sky Harbor Intl

Thu 1/8

1:00 pm-4:08 pm

Nonstop2h 08m

San Antonio

Fri 1/9

10:13 am-8:13 pm

1 stop11h 00m

$156

PhoenixSan Antonio

PHX - SAT

PHXSAT

Phoenix Sky Harbor Intl

Sat 2/14

6:00 am-7:01 pm

1 stop12h 01m

San Antonio

Mon 2/16

9:33 am-11:16 am

Nonstop2h 43m

$161

PhoenixSan Antonio

PHX - SAT

PHXSAT

Phoenix Sky Harbor Intl

Thu 1/8

5:33 pm-11:49 am

1 stop17h 16m

San Antonio

Sun 1/11

7:14 pm-3:13 pm

2 stops20h 59m

$167

PhoenixSan Antonio

PHX - SAT

PHXSAT

Phoenix Sky Harbor Intl

Sat 1/10

1:49 pm-4:56 pm

Nonstop2h 07m

San Antonio

Sat 1/24

6:00 am-7:45 am

Nonstop2h 45m

$169

PhoenixSan Antonio

PHX - SAT

PHXSAT

Phoenix Sky Harbor Intl

Sat 2/14

10:00 am-1:06 pm

Nonstop2h 06m

San Antonio

Mon 2/16

6:00 am-7:37 am

Nonstop2h 37m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 19 results
1
2

Best time to book a flight from Gilbert to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Gilbert 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 Gilbert to San Antonio

How far ahead should I book a flight from Gilbert to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from Gilbert to San Antonio. Price data was last updated on December 12, 2025.

Booking 53 days in advance of your planned departure date is, on average, the best time to get cheap flights from Gilbert to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Gilbert to San Antonio?

Currently, December is the cheapest month in which you can book a flight from Gilbert to San Antonio (average of $58). Flying from Gilbert to San Antonio in March is currently the most expensive (average of $118). 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 G1L to SAT?

Find hourly flight availability from Gilbert 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 December 18, 2025.

One of the essential ways to save on airfare from Gilbert to San Antonio is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 23% on airfare.

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

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

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

Weekly flight availability from Gilbert to San Antonio

Explore weekly flight availability from Gilbert to San Antonio. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 18, 2025.

The most flights from G1L to SAT are scheduled on a Thursday (16 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (4 on average).

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 December 18, 2025.
Read through reviews of airlines operating flights from Gilbert to San Antonio, such as Southwest, American Airlines, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,249 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

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
7.9
Good
4,249 reviews
Southwest
7.9
Good
4,249 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

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
11,054 reviews
Southwest
7.9
Good
4,249 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

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
Frontier
5.8
Fair
3,082 reviews
Southwest
7.9
Good
4,249 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

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 Gilbert 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 Gilbert?

    San Antonio (SAT) is the airport you will fly into if you book a flight from Gilbert to San Antonio. You should not have trouble finding flights to San Antonio from Gilbert; the airport handles an average of 8 inbound flights from Gilbert per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the San Antonio airport from Gilbert. It is only a 7.6 mi journey from San Antonio (SAT) to San Antonio’s city center.

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

    A quick flight from Gilbert to San Antonio can take about 4h 56m. Frontier provides one of the quickest options available for as low as $110. The distance from Gilbert to San Antonio is about 840 mi.

  • What are the cheapest airlines to fly from Gilbert to San Antonio one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $39. Users have also found prices from $74 and $79 on Southwest and American Airlines, respectively.

  • What are the most reliable airlines from Gilbert to San Antonio?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Gilbert to San Antonio on time: Frontier (92%), Southwest (73%), Alaska Airlines (72%).

  • What are the cheapest flights from Gilbert to San Antonio?

    On average you can expect to pay $154 for a flight from Gilbert to San Antonio. The cheapest flight overall is $40 while the most popular route, (Phoenix Sky Harbor Intl - San Antonio) is currently priced at $127.

  • Can I find deals for flights from Gilbert to San Antonio that include hotel bookings?

    Yes. In addition to deals on Gilbert to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Gilbert to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gilbert to San Antonio.

  • Can I find deals for business class flights from Gilbert to San Antonio?

    Yes. Cheapflights offers flight deals from Gilbert 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 Gilbert to San Antonio?

    Currently, December is the cheapest month in which you can book a flight from Gilbert to San Antonio (average of $58). Flying from Gilbert to San Antonio in March is currently the most expensive (average of $118). 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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Top 4 airlines flying from Gilbert to San Antonio

Discover the top 4 airlines that operate flights from Gilbert 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$83Average$199FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$158Average$361FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$161Average$370FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$366FlexibilityNo cancel feeOn-time69%

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