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

Compare Phoenix Sky Harbor to San Antonio International flight deals

Find the cheapest month or even day of the year to fly to San Antonio International

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Flight deals from Phoenix Sky Harbor to San Antonio International

Looking for a cheap last-minute deal or the best return flight from Phoenix Sky Harbor Airport to San Antonio International Airport? If you want to travel next month, return fares start from $342. Find the lowest prices on one-way and return tickets right here.
San Antonio.$341 per passenger.Departing Mon, 7 Sep, returning Mon, 14 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Mon, 7 Sep, arriving in San Antonio International.Inbound indirect flight with Frontier Airlines, departs from San Antonio International on Mon, 14 Sep, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $341, select.
San Antonio.$342 per passenger.Departing Thu, 27 Aug, returning Thu, 27 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Thu, 27 Aug, arriving in San Antonio International.Inbound indirect flight with Frontier Airlines, departs from San Antonio International on Thu, 27 Aug, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $342, select.
San Antonio.$342 per passenger.Departing Tue, 25 Aug, returning Tue, 1 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Tue, 25 Aug, arriving in San Antonio International.Inbound indirect flight with Frontier Airlines, departs from San Antonio International on Tue, 1 Sep, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $342, select.
San Antonio.$343 per passenger.Departing Thu, 8 Oct, returning Thu, 15 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Thu, 8 Oct, arriving in San Antonio International.Inbound indirect flight with Frontier Airlines, departs from San Antonio International on Thu, 15 Oct, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $343, select.
San Antonio.$345 per passenger.Departing Wed, 11 Nov, returning Fri, 13 Nov.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Wed, 11 Nov, arriving in San Antonio International.Inbound indirect flight with Frontier Airlines, departs from San Antonio International on Fri, 13 Nov, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $345, select.
San Antonio.$346 per passenger.Departing Wed, 28 Oct, returning Mon, 2 Nov.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Phoenix Sky Harbor on Wed, 28 Oct, arriving in San Antonio International.Inbound indirect flight with Frontier Airlines, departs from San Antonio International on Mon, 2 Nov, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $346, select.
San Antonio.$351 per passenger.Departing Sat, 5 Sep, returning Sun, 6 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Sat, 5 Sep, arriving in San Antonio International.Inbound direct flight with Southwest Airlines departs from San Antonio International on Sun, 6 Sep, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $351, select.
San Antonio.$351 per passenger.Departing Tue, 1 Dec, returning Sat, 5 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Tue, 1 Dec, arriving in San Antonio International.Inbound direct flight with Southwest Airlines departs from San Antonio International on Sat, 5 Dec, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $351, select.
San Antonio.$352 per passenger.Departing Wed, 7 Oct, returning Sat, 10 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Wed, 7 Oct, arriving in San Antonio International.Inbound direct flight with Southwest Airlines departs from San Antonio International on Sat, 10 Oct, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $352, select.
San Antonio.$352 per passenger.Departing Wed, 12 Aug, returning Thu, 13 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Wed, 12 Aug, arriving in San Antonio International.Inbound direct flight with Southwest Airlines departs from San Antonio International on Thu, 13 Aug, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $352, select.
San Antonio.$352 per passenger.Departing Thu, 26 Nov, returning Thu, 3 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Thu, 26 Nov, arriving in San Antonio International.Inbound direct flight with Southwest Airlines departs from San Antonio International on Thu, 3 Dec, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $352, select.
San Antonio.$352 per passenger.Departing Fri, 30 Oct, returning Mon, 2 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Fri, 30 Oct, arriving in San Antonio International.Inbound direct flight with Southwest Airlines departs from San Antonio International on Mon, 2 Nov, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $352, select.
San Antonio.$352 per passenger.Departing Thu, 19 Nov, returning Thu, 26 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Thu, 19 Nov, arriving in San Antonio International.Inbound direct flight with Southwest Airlines departs from San Antonio International on Thu, 26 Nov, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $352, select.
San Antonio.$354 per passenger.Departing Thu, 10 Sep, returning Sat, 10 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Thu, 10 Sep, arriving in San Antonio International.Inbound direct flight with Southwest Airlines departs from San Antonio International on Sat, 10 Oct, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $354, select.
San Antonio.$383 per passenger.Departing Tue, 25 Aug, returning Tue, 1 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Tue, 25 Aug, arriving in San Antonio International.Inbound direct flight with Southwest Airlines departs from San Antonio International on Tue, 1 Sep, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $383, select.
San Antonio.$383 per passenger.Departing Thu, 14 Jan, returning Thu, 21 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Phoenix Sky Harbor on Thu, 14 Jan, arriving in San Antonio International.Inbound direct flight with Southwest Airlines departs from San Antonio International on Thu, 21 Jan, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $383, select.

Find the cheapest month to fly from Phoenix Sky Harbor to San Antonio International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Phoenix Sky Harbor to San Antonio International flights are currently cheapest in September.
Jul
from $495
Aug
from $342
Sep
from $341
Oct
from $343
Nov
from $345
Dec
from $351
Jan
from $383
Feb
from $881
Mar
Find prices
Apr
from $577
May
Find prices
Jun
from $511

Direct flights from Phoenix Sky Harbor to San Antonio International

Phoenix Sky Harbor to San Antonio International: Alternative routes

Compare routes from Phoenix Sky Harbor to San Antonio below. You may find an airport to fly into that's cheaper, faster, or easier than San Antonio International.

San Antonio International

13km from central San Antonio
ClosestCheapest
from $341
Search flights

Phoenix to San Antonio: Flight information

The things to know before you go.
Cheapest flight found$341
Cheapest month to flySeptember
Average flight time2 hrs, 11 mins
Most popular airlineSouthwest Airlines
Average flights per week81

Finding cheap flights from Phoenix Sky Harbor to San Antonio International: Frequently asked questions

The best price we found for a return flight from Phoenix Sky Harbor to San Antonio International is $341. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 11 minutes is the average flight time from Phoenix Sky Harbor to San Antonio International.
Southwest Airlines, American Airlines and Alaska Airlines fly direct from Phoenix Sky Harbor to San Antonio International.
As of July 2026, there are 81 flights per week flying from Phoenix Sky Harbor to San Antonio International.
The cheapest month to fly from Phoenix Sky Harbor to San Antonio International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Phoenix Sky Harbor Airport to San Antonio International Airport on Monday, 7 September 2026.
Yes – the average flight time is 2 hours and 11 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Antonio International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Antonio is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to San Antonio International.

Travelling from Phoenix Sky Harbour Airport (PHX) to San Antonio International Airport (SAT): what you need to know

  • Around 2 hours 10 minutes is how long you can expect to be in the air on a direct flight from Phoenix Sky Harbour Airport to San Antonio International Airport.

  • San Antonio's timezone is UTC-6, which makes San Antonio one hour ahead of Phoenix.

  • You can take your pick of 40 weekly Phoenix Sky Harbour Airport to San Antonio International Airport flights.

  • To ensure you catch your PHX to SAT flight, leave enough time to navigate the airport and find your gate. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • Travelling during a peak time such as April? Major public holidays and other high seasons can lead to longer lines and delays at airport checkpoints. Be extra cautious and arrive up to four hours before international flights and two hours before domestic departures.

  • A variety of airlines operate direct flights from Phoenix Sky Harbour Airport to San Antonio International Airport, so jetting to San Antonio (and then seeing more parts of the United States!) is easy. Popular carriers that fly nonstop include:

  • American Airlines is the top choice for travellers on this route.

  • Frontier Airlines is the most punctual carrier that offers PHX to SAT flights. A reliable 91.67% of its departures on this route arrive without delay.

  • If you want to break up your flight, just uncheck 'Direct flights only' when searching for your ticket from Phoenix Sky Harbour Airport to San Antonio International Airport. Here are the top stopovers between PHX and SAT:

    • Dallas Fort Worth International Airport

    • Houston Hobby Airport

    • El Paso International Airport

How to find the cheapest flights from Phoenix Sky Harbour Airport (PHX) to San Antonio International Airport (SAT)

  • The lowest price we've found for a one-way Phoenix Sky Harbour Airport to San Antonio International Airport flight is $151. A round-trip plane ticket is currently $341. Depending on the availability when you book, these fares can change.

  • It's usually best to book as early as possible if you want to find cheap tickets from PHX to SAT. That's because airlines adjust prices based on demand, which tends to rise closer to departure.

  • The cheapest month for flights from Phoenix Sky Harbour Airport to San Antonio International Airport is May. Use the 'Whole month' tool to find the lowest prices if you have flexible dates.

  • Picking up cheap flights from PHX to SAT is a breeze with Price Alerts. Simply set up one of these automatic alerts and we'll let you know as soon as a lower fare pops up.

  • Tailor your flights with filters. Select your preferred arrival and departure times, airlines and total journey duration. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from Phoenix Sky Harbour Airport to San Antonio International Airport.

Handy information about Phoenix Sky Harbour Airport (PHX)

  • PHX is located at 3400 Sky Harbour Boulevard.

  • Phoenix Sky Harbour Airport scores high marks for its on-time performance. 80% of flights that take off from PHX arrive at their destination as scheduled.

  • Central Phoenix to Phoenix Sky Harbour Airport is around 5 kilometres. Depending on traffic, it'll take you about 10 minutes to get there if you're catching a taxi, ride-sharing or driving.

  • The journey on public transport will take about 25 minutes.

  • Taking an early flight from Phoenix Sky Harbour Airport to San Antonio International Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra precious sleep) by picking one of these stays near PHX:

Arriving at San Antonio International Airport (SAT)

Getting from San Antonio International Airport (SAT) to central San Antonio

  • SAT is located at 9800 Airport Boulevard.

  • San Antonio International Airport is roughly 14 kilometres from central San Antonio. Driving there takes about 20 minutes.

  • Getting to the centre on public transport typically takes 50 minutes.

When to fly to San Antonio International Airport (SAT)

  • July is the busiest month for flights from Phoenix Sky Harbour Airport to San Antonio International Airport. To avoid the crowds, head to San Antonio in March.

  • The warmest month in San Antonio is August, with temperatures ranging between 24ºC (75ºF) and 40ºC (104ºF). Lock in your flights from Phoenix Sky Harbour Airport to San Antonio International Airport in this month if this is the kind of weather you like.

  • Look for cheap tickets from PHX to SAT in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 4ºC (39ºF) and 20ºC (68ºF) on average.

Explore more of the United States

  • You've done San Antonio, now it's time to discover other corners of the United States. Travel about 306 kilometres east to Houston to tick off its must-visit sights. From The Museum of Fine Arts, Houston, Beck Building to Houston Museum of Natural Science and The Menil Collection, you'll have a full itinerary ahead.

  • Around 402 kilometres north-east of San Antonio, Dallas is another essential stop in the United States. Get a taste of what this destination has to offer at Meyerson Symphony Centre, Winspear Opera House and Dallas Museum of Art.

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Prices shown on this page are estimated lowest prices only. Found in the last 12 days.