Cheap Flights from Portland (PWM) to San Antonio (SAT)

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Compare Portland 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 Portland to San Antonio International

Looking for a cheap last-minute deal or the best return flight from Portland to San Antonio International? Find the lowest prices on one-way and return tickets right here.

The cheapest month to fly from Portland Airport to San Antonio International Airport

We’re always keeping an eye on fares, to help you find the lowest one in seconds. Check out the Portland Airport to San Antonio International Airport flight prices forecast over the next 12 months.

Portland to San Antonio International: Alternative routes

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

Portland to San Antonio: Flight information

The things to know before you go.
Cheapest flight found$638
Cheapest month to flyJuly

Finding cheap flights from Portland to San Antonio International: Frequently asked questions

The best price we found for a return flight from Portland to San Antonio International is $638. 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.
Currently, there are no airlines that fly direct from Portland to San Antonio International. But we found flights with one or more stops from $638.
As of May 2025, there are no flights flying from Portland to San Antonio International.
The cheapest month to fly from Portland to San Antonio International is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to San Antonio International Airport on Saturday, 12 July 2025.
No airlines currently offer direct flights between Portland Airport and San Antonio International Airport. Most routes have one or more stops.
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, United offers the cheapest flight tickets to San Antonio International.

Flying from Portland International Jetport Airport (PWM) to San Antonio International Airport (SAT): what you need to know

  • San Antonio is one hour behind Portland and follows the UTC-5 timezone.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This way, you'll have plenty of time to catch your PWM to SAT flight.

  • Flying during a peak time such as August? Major public holidays and other popular seasons can mean longer lines and delays at check-in and security. Be extra cautious and get there up to four hours before international flights and two hours before a domestic departure.

  • We make it simple to book a flight with a stopover. To see your options for tickets from Portland International Jetport Airport to San Antonio International Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to tour your chosen city. Some great stopovers between PWM and SAT include:

    • Washington Dulles International Airport

    • Dallas/Fort Worth International Airport

    • Detroit Metropolitan Wayne County Airport

How to find the cheapest flights from Portland International Jetport Airport (PWM) to San Antonio International Airport (SAT)

  • The lowest price we've seen for a one-way Portland International Jetport Airport to San Antonio International Airport flight is $271. A return fare right now is $638. Depending on the availability when you book, these fares can change.

  • Don't wait until the last minute. You're more likely to get cheap tickets from PWM to SAT if you book in advance. Airlines often have some great early bird discounts.

  • Finding cheap flights from Portland International Jetport Airport to San Antonio International Airport is easier if you're flexible with your dates. Use the 'Whole month' tool to see the lowest prices throughout the month and bag a great deal.

  • Never miss a deal on cheap flights from PWM to SAT by setting up a Price Alert. You'll get an email or notification through the app when a new low fare is offered.

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

Handy information about Portland International Jetport Airport (PWM)

  • PWM's address is 1001 Westbrook Street.

  • Portland International Jetport Airport maintains a solid on-time performance, so flight disruptions are less likely. Departures from PWM arrive at their destination as scheduled 82.15% of the time.

  • To reach Portland International Jetport Airport from central Portland, it'll take around 15 minutes if you're travelling by car. This depends on traffic though. It's approximately 8 kilometres from the airport to the city centre.

  • You can expect a trip time of around 40 minutes on public transport.

  • Need a handy hotel near PWM? If you've booked an early flight from Portland International Jetport Airport to San Antonio International Airport, these accommodation options will put you moments from check-in:

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.

  • From San Antonio International Airport, San Antonio is approximately 19 kilometres away. It takes around 20 minutes to get to the centre driving.

  • Getting there on public transport will take you around 1 hour 30 minutes.

When to fly to San Antonio International Airport (SAT)

  • July is the busiest month for flights from Portland International Jetport Airport to San Antonio International Airport. For smaller crowds, visit San Antonio in April.

  • Lock in your flight from Portland International Jetport Airport to San Antonio International Airport for August if you'd like to explore San Antonio during its warmest month. Expect temperatures of between 23ºC (73ºF) and 40ºC (104ºF).

  • January sees average temperatures of between 3ºC (37ºF) and 20ºC (68ºF). Search for cheap tickets from PWM to SAT around that time if you want to travel in cooler conditions.

Explore more of United States

  • You've done San Antonio, now it's time to discover other corners of United States. Journey about 306 kilometres east to Houston to check off its leading attractions. From The Houston Museum of Natural Science to The Museum of Fine Arts, Houston, Beck Building and Hermann Park, you'll have a packed itinerary ahead.

  • If there's time to check out another side of United States, consider Dallas, roughly 402 kilometres north-east of San Antonio. Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.