Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to San Antonio International Airport (SAT)

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Cheap Flights from Phoenix to San Antonio (PHX-SAT)

Prices were available within the past 7 days and start at $87 for one-way flights and $158 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Oct 20 - Mon, Nov 3
PHX
Phoenix
SAT
San Antonio
$158 Roundtrip, found 3 days ago
$158
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, Oct 20 from Phoenix to San Antonio, returning Mon, Nov 3, priced at $158 found 3 days ago
Frontier Airlines
Fri, Oct 17 - Mon, Oct 20
PHX
Phoenix
SAT
San Antonio
$163 Roundtrip, found 11 hours ago
$163
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Fri, Oct 17 from Phoenix to San Antonio, returning Mon, Oct 20, priced at $163 found 11 hours ago
Frontier Airlines
Mon, Oct 13 - Mon, Oct 20
PHX
Phoenix
SAT
San Antonio
$166 Roundtrip, found 3 hours ago
$166
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Mon, Oct 13 from Phoenix to San Antonio, returning Mon, Oct 20, priced at $166 found 3 hours ago
Frontier Airlines
Fri, Oct 31 - Mon, Nov 3
PHX
Phoenix
SAT
San Antonio
$171 Roundtrip, found 2 hours ago
$171
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Fri, Oct 31 from Phoenix to San Antonio, returning Mon, Nov 3, priced at $171 found 2 hours ago
Frontier Airlines
Fri, Oct 24 - Sun, Nov 2
PHX
Phoenix
SAT
San Antonio
$176 Roundtrip, just found
$176
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 24 from Phoenix to San Antonio, returning Sun, Nov 2, priced at $176 just found
Frontier Airlines
Sat, Oct 25 - Mon, Nov 3
PHX
Phoenix
SAT
San Antonio
$200 Roundtrip, just found
$200
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Oct 25 from Phoenix to San Antonio, returning Mon, Nov 3, priced at $200 just found
Southwest Airlines
Sat, Oct 25 - Mon, Oct 27
PHX
Phoenix
SAT
San Antonio
$216 Roundtrip, found 15 hours ago
$216
Roundtrip
found 15 hours ago
Select Southwest Airlines flight, departing Sat, Oct 25 from Phoenix to San Antonio, returning Mon, Oct 27, priced at $216 found 15 hours ago
American Airlines
Wed, Jan 7 - Sat, Jan 10
PHX
Phoenix
SAT
San Antonio
$217 Roundtrip, found 1 hour ago
$217
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Jan 7 from Phoenix to San Antonio, returning Sat, Jan 10, priced at $217 found 1 hour ago
United
Sat, Sep 20 - Wed, Sep 24
PHX
Phoenix
SAT
San Antonio
$228 Roundtrip, found 1 hour ago
$228
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Sep 20 from Phoenix to San Antonio, returning Wed, Sep 24, priced at $228 found 1 hour ago
Delta
Wed, Jan 7 - Sat, Jan 10
PHX
Phoenix
SAT
San Antonio
$237 Roundtrip, found 1 hour ago
$237
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Jan 7 from Phoenix to San Antonio, returning Sat, Jan 10, priced at $237 found 1 hour ago

Find the cheapest month to fly from Phoenix (PHX) to San Antonio (SAT)

September is typically the cheapest month to fly

From $73 - $174 per traveler.

Graph displaying average flight prices per month

Alternative airports near San Antonio

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Antonio Intl. SAT. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $369
SAT
San Antonio Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $369
Flights from Phoenix (PHX) to San Antonio (SAT)
Origin airport
Sky Harbor Intl.
Destination airport
San Antonio Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$102
Distance
841 mi
Average flight time
4 hours 11 mins

Phoenix to San Antonio Flights

The cheapest times to fly from Phoenix to San Antonio

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phoenix to San Antonio are during the month of October. You can find some of the cheapest flights from Phoenix to San Antonio with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to San Antonio

Sunday is one of the best days to book for cheap flights from Phoenix to San Antonio: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Phoenix to San Antonio

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phoenix to San Antonio in 2025. You can also book with separate airlines for your outbound and return journeys, from $87 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phoenix to San Antonio flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phoenix to San Antonio airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT) cost?
Pick up cheap return fares starting at $217 from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving PHX on August 18 2025 and touching down at SAT. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from PHX to SAT?
The cheapest flights from PHX to SAT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT)?
Take a nonstop flight with Southwest Airlines and travel straight from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT).
What is the cheapest airline that flies from PHX to SAT?
Currently, the cheapest carrier operating one-way flights from PHX to SAT is Southwest Airlines. You can jet off on this route from $109. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PHX on October 15 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT)?
Each day on average, 7 direct flights operate from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT). Choose the departure date that best fits your itinerary.
What are the most popular departure times for flights from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT)?
The 10 AM departures from PHX to SAT see the highest demand. These flights can come with a higher price due to their popularity. If you want to save on your trip, choose a less crowded time to fly.
What day of the week has the most flights from PHX to SAT?
Fly on a Sunday if you're searching for the biggest selection of flights from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT).
What is the earliest flight from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT)?
Catch the earliest flight at around 6:15AM UTC-7, heading out of Sky Harbor Intl. Airport (PHX). You'll be flying for roughly 2h, reaching San Antonio Intl. Airport (SAT) at approximately 9:15AM UTC-6.
How long does it take to fly from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT)?
It takes approximately 2 hours and 7 minutes to fly the 840 mi from PHX to SAT.
What airline has the least delays from PHX to SAT?
American Airlines has the best track record for on-time direct flights from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT), with an on-time rating of 89%. Use the Expedia App to see your journey status before you head off and get immediate updates about any trip changes.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT)?
To avoid possible delays on the Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT) route, travel before 3 PM. Later flights have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Antonio from Sky Harbor Intl. Airport (PHX)?
If you're traveling on a direct flight from Sky Harbor Intl. Airport (PHX) to San Antonio, San Antonio Intl. Airport (SAT) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT) last-minute?
Last-minute fares from PHX to SAT are usually more expensive. To lock in the best rates, start looking for flights as early as possible. That being said, if you're flexible with your travel plans, it's possible to score a cheap ticket right before you leave.
Is it cheaper to book a PHX to SAT flight and hotel package?
Securing a PHX to SAT flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our extensive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to San Antonio Intl. Airport (SAT)?
If you booked your PHX to SAT flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

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