$90 Cheap Flights from Phoenix (PHX) to San Antonio (SAT)

View $90 flight on Tue, Apr 21, 2026Opens in a new window

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 $90 for one-way flights and $180 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Apr 30 - Sat, May 2
PHX
Phoenix
SAT
San Antonio
$180 Roundtrip, just found
$180
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Apr 30 from Phoenix to San Antonio, returning Sat, May 2, priced at $180 just found
Frontier Airlines
Thu, Apr 9 - Sun, Apr 12
PHX
Phoenix
SAT
San Antonio
$185 Roundtrip, found 1 hour ago
$185
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Apr 9 from Phoenix to San Antonio, returning Sun, Apr 12, priced at $185 found 1 hour ago
Frontier Airlines
Thu, Apr 30 - Sat, May 2
PHX
Phoenix
SAT
San Antonio
$190 Roundtrip, just found
$190
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Apr 30 from Phoenix to San Antonio, returning Sat, May 2, priced at $190 just found
Frontier Airlines
Thu, Apr 30 - Mon, Jun 1
PHX
Phoenix
SAT
San Antonio
$191 Roundtrip, found 10 hours ago
$191
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Thu, Apr 30 from Phoenix to San Antonio, returning Mon, Jun 1, priced at $191 found 10 hours ago
Southwest Airlines
Tue, Apr 7 - Mon, Apr 13
PHX
Phoenix
SAT
San Antonio
$196 Roundtrip, found 19 hours ago
$196
Roundtrip
found 19 hours ago
Select Southwest Airlines flight, departing Tue, Apr 7 from Phoenix to San Antonio, returning Mon, Apr 13, priced at $196 found 19 hours ago
Frontier Airlines
Tue, Mar 31 - Thu, Apr 2
PHX
Phoenix
SAT
San Antonio
$199 Roundtrip, found 3 hours ago
$199
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Tue, Mar 31 from Phoenix to San Antonio, returning Thu, Apr 2, priced at $199 found 3 hours ago
Frontier Airlines
Tue, Apr 21 - Thu, Apr 23
PHX
Phoenix
SAT
San Antonio
$201 Roundtrip, just found
$201
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 21 from Phoenix to San Antonio, returning Thu, Apr 23, priced at $201 just found
American Airlines
Tue, Apr 21 - Thu, Apr 23
PHX
Phoenix
SAT
San Antonio
$319 Roundtrip, just found
$319
Roundtrip
just found
Select American Airlines flight, departing Tue, Apr 21 from Phoenix to San Antonio, returning Thu, Apr 23, priced at $319 just found
United
Mon, Jun 1 - Thu, Jun 4
PHX
Phoenix
SAT
San Antonio
$334 Roundtrip, found 1 hour ago
$334
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Jun 1 from Phoenix to San Antonio, returning Thu, Jun 4, priced at $334 found 1 hour ago
Alaska Airlines
Sat, May 2 - Tue, May 5
PHX
Phoenix
SAT
San Antonio
$383 Roundtrip, found 1 hour ago
$383
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Sat, May 2 from Phoenix to San Antonio, returning Tue, May 5, priced at $383 found 1 hour ago

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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 $225
SAT
San Antonio Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $225

Frequently asked questions

How much does a flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) cost?
You can find cheap one-way flights from $90 and cheap return flights from $180 Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) with Expedia. One-way flights typically cost between $117 and $1161, and return flights often range between $267 and $1656. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
January is the cheapest month to fly from Phoenix, AZ (PHX) to San Antonio, TX (SAT), with average round-trip fares around $288. This is about 14% lower than the average price throughout the year, as January is a quieter month for travel after the holiday season. Other affordable months to consider are September and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
2 airlines operate nonstop service from PHX to SAT:

  • American Airlines operates around 32 direct flights from PHX to SAT every week
  • Frontier Airlines operates around 7 direct flights from PHX to SAT every week

What is the cheapest airline that flies from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
Sun Country Airlines is one of the cheapest airlines offering connecting flights from Sky Harbor Intl. (PHX) to San Antonio Intl. (SAT), with round-trip tickets starting from around $294. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
To find a cheap flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
The best airline to fly with from Phoenix, AZ (PHX) to San Antonio, TX (SAT) will differ from traveler to traveler. If you like to fly early, WN offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. WN offers the most daily flights from Phoenix to San Antonio, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
For flights from Phoenix, AZ (PHX) to San Antonio, TX (SAT), the best times to travel are January and September. You can expect return flights to be around $288 in January, which is a quieter travel month, and September offers similar pricing with pleasant weather. Both months provide a good balance of affordability and flight availability.*Prices based on flights available on Expedia in the last year.
How many flights per day from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
On average, there are around 9 nonstop flights per day from Sky Harbor Intl. (PHX) to San Antonio Intl. (SAT). For more options, look at flights that include layovers.
What is the earliest flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
The earliest flight from Sky Harbor International Airport (PHX) to San Antonio International Airport (SAT) typically departs at around 12:05 AM, operated by Frontier Airlines. This seasonal service is available in March, giving you a chance to start your day early in San Antonio. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
When flying from Phoenix, AZ (PHX) to San Antonio, TX (SAT), the most popular departure times are in the early morning, from 6am to 9am. About 29% of passengers prefer this time window. Major carriers, including United Airlines and Southwest Airlines, operate flights during this period. This timing works well because it allows you to maximize your day in Phoenix before traveling.
How long does it take to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
A nonstop flight from PHX to SAT typically takes around 2 hours 20 minutes, covering approximately 841 miles. Connecting flights on this route usually add 2 hours 40 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
First class is available on flights from PHX to SAT. First class cabins are available on:

  • Delta Air Lines
  • American Airlines
  • United Airlines

How much is a business class flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
A direct, return business class ticket from Phoenix, AZ (PHX) to San Antonio, TX (SAT) typically costs between $1,508 - $2,070. A non-stop, one-way business class flight is usually around $441 - $691 per adult. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight with Expedia?
It's easy to earn miles on a Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for San Antonio from Sky Harbor Intl. (PHX)?
From Sky Harbor Intl. (PHX), you can fly into San Antonio Intl. (SAT) to reach San Antonio. Some flights may connect through major hubs like Denver Intl. (DEN), Portland Intl. (PDX), San Diego Intl. (SAN) before reaching San Antonio. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) at the last minute?
Typically, booking a last minute flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight and hotel package?
Securing a Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) San Antonio Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.)?
If you booked your Phoenix, AZ (PHX-Sky Harbor Intl.) to San Antonio, TX (SAT-San Antonio Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
San Antonio Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$180
Distance
841 mi
Average flight time
4 hours 2 mins

Book with confidence

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 April. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $90 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.

 

Phoenix to San Antonio Flights

*Flight schedules are subject to change.

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*Available to One Key members.