159 € Cheap Flights from Portland 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.

Find the cheapest month to fly from Portland to San Antonio International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to San Antonio International flights are currently cheapest in April.

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 found159 €
Cheapest month to flyApril

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 159 €. 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 159 €.
As of February 2026, there are no flights flying from Portland to San Antonio International.
The cheapest month to fly from Portland to San Antonio International is usually April.
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 Friday, 10 April 2026.
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, Frontier Airlines offers the cheapest flight tickets to San Antonio International.

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

  • San Antonio is two hours ahead of Portland and observes the UTC-5 timezone.

  • To ensure you get on your PDX to SAT flight, allow plenty of time to check in and drop off your luggage. Arriving two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • Flying during a peak time such as July? Public holidays and other high seasons can lead to longer queues and delays at security. Play things extra safe and arrive up to four hours ahead of an international flight and two hours before domestic departures.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from Portland International Airport to San Antonio International Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to explore your chosen city. Popular stopovers between PDX and SAT include:

    • Dallas Love Field Airport

    • Denver International Airport

    • Phoenix Sky Harbour International Airport

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

  • The lowest price we've found for a one-way Portland International Airport to San Antonio International Airport flight is 84 €. A round-trip plane ticket is currently 159 €. Depending on the availability when you book, these fares could change.

  • To get your hands on cheap tickets from PDX to SAT, book ahead. Airlines generally offer lower fares when flights are first released.

  • The 'Whole month' search function shows you the cheapest flights from Portland International Airport to San Antonio International Airport throughout the entire month. It's an easy way to snap up a bargain if your travel dates are flexible.

  • Landing cheap flights from PDX to SAT couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you as soon as there's a better deal.

  • Lock in the right flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Portland International Airport to San Antonio International Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about Portland International Airport (PDX)

  • The address for PDX is 7000 NE Airport Way.

  • 83.65% of flights leaving Portland International Airport touch down at their destination as planned. With its strong on-time performance, disruptions are unlikely when flying out of PDX.

  • Central Portland to Portland International Airport is approximately 19 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're catching a cab, ride-sharing or driving.

  • Planning to catch public transport? You can expect a journey time of around 45 minutes.

  • Need a convenient hotel close to PDX? If you've booked an early flight from Portland International Airport to San Antonio International Airport, these stays will have you moments from check-in:

Arriving at San Antonio International Airport (SAT)

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

  • You'll find SAT at 9800 Airport Boulevard.

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

  • Getting to the centre by public transport typically takes 1 hour 30 minutes.

When to fly to San Antonio International Airport (SAT)

  • July is the busiest month for flights from Portland International Airport to San Antonio International Airport. To steer clear of the crowds, head to San Antonio in April.

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

  • Look for cheap tickets from PDX to SAT in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 3ºC (37ºF) and 20ºC (68ºF) on average.

Explore more of United States

  • San Antonio has its own special appeal, but there are so many other parts of United States you should also see. Around 306 kilometres east of San Antonio, a visit to Houston will keep you on the move. Start with popular sights like The Houston Museum of Natural Science, The Museum of Fine Arts, Houston, Beck Building and Hermann Park.

  • If you're looking to explore another major destination in 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.