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

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      Travellers and cabin class, 1 Adult, Economy

      Compare San Antonio International to Portland flight deals

      Find the cheapest month or even day of the year to fly to Portland

      Book the best Portland fare with no extra fees

      Flight deals from San Antonio International to Portland

      Looking for a cheap last-minute deal or the best return flight from San Antonio International Airport to Portland Airport? If you want to travel next month, return fares start from $289. Find the lowest prices on one-way and return tickets right here.
      Portland.$289 per passenger.Departing Fri, 25 Sep, returning Mon, 28 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Antonio International on Fri, 25 Sep, arriving in Portland.Inbound indirect flight with Frontier Airlines, departs from Portland on Mon, 28 Sep, arriving in San Antonio International.Price includes taxes and charges.From $289, select.
      Portland.$376 per passenger.Departing Fri, 2 Oct, returning Mon, 5 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Antonio International on Fri, 2 Oct, arriving in Portland.Inbound indirect flight with Frontier Airlines, departs from Portland on Mon, 5 Oct, arriving in San Antonio International.Price includes taxes and charges.From $376, select.
      Portland.$376 per passenger.Departing Wed, 30 Sep, returning Fri, 9 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Antonio International on Wed, 30 Sep, arriving in Portland.Inbound indirect flight with Frontier Airlines, departs from Portland on Fri, 9 Oct, arriving in San Antonio International.Price includes taxes and charges.From $376, select.
      Portland.$389 per passenger.Departing Tue, 3 Nov, returning Tue, 17 Nov.Return flight with United.Outbound indirect flight with United, departs from San Antonio International on Tue, 3 Nov, arriving in Portland.Inbound indirect flight with United, departs from Portland on Tue, 17 Nov, arriving in San Antonio International.Price includes taxes and charges.From $389, select.
      Portland.$407 per passenger.Departing Thu, 27 Aug, returning Wed, 2 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Antonio International on Thu, 27 Aug, arriving in Portland.Inbound indirect flight with Frontier Airlines, departs from Portland on Wed, 2 Sep, arriving in San Antonio International.Price includes taxes and charges.From $407, select.
      Portland.$415 per passenger.Departing Thu, 29 Oct, returning Thu, 5 Nov.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Antonio International on Thu, 29 Oct, arriving in Portland.Inbound indirect flight with Frontier Airlines, departs from Portland on Thu, 5 Nov, arriving in San Antonio International.Price includes taxes and charges.From $415, select.
      Portland.$507 per passenger.Departing Wed, 2 Dec, returning Sun, 6 Dec.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Antonio International on Wed, 2 Dec, arriving in Portland.Inbound indirect flight with Frontier Airlines, departs from Portland on Sun, 6 Dec, arriving in San Antonio International.Price includes taxes and charges.From $507, select.
      Portland.$532 per passenger.Departing Tue, 5 Jan, returning Tue, 12 Jan.Return flight with United.Outbound indirect flight with United, departs from San Antonio International on Tue, 5 Jan, arriving in Portland.Inbound indirect flight with United, departs from Portland on Tue, 12 Jan, arriving in San Antonio International.Price includes taxes and charges.From $532, select.
      Portland.$532 per passenger.Departing Thu, 31 Dec, returning Thu, 7 Jan.Return flight with United.Outbound indirect flight with United, departs from San Antonio International on Thu, 31 Dec, arriving in Portland.Inbound indirect flight with United, departs from Portland on Thu, 7 Jan, arriving in San Antonio International.Price includes taxes and charges.From $532, select.
      Portland.$605 per passenger.Departing Tue, 23 Mar, returning Tue, 30 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Tue, 23 Mar, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Tue, 30 Mar, arriving in San Antonio International.Price includes taxes and charges.From $605, select.
      Portland.$633 per passenger.Departing Thu, 27 Aug, returning Sun, 30 Aug.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Thu, 27 Aug, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Sun, 30 Aug, arriving in San Antonio International.Price includes taxes and charges.From $633, select.
      Portland.$645 per passenger.Departing Sat, 10 Jul, returning Tue, 13 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from San Antonio International on Sat, 10 Jul, arriving in Portland.Inbound indirect flight with Delta, departs from Portland on Tue, 13 Jul, arriving in San Antonio International.Price includes taxes and charges.From $645, select.
      Portland.$1,036 per passenger.Departing Sat, 28 Nov, returning Sat, 5 Dec.Return flight with United.Outbound indirect flight with United, departs from San Antonio International on Sat, 28 Nov, arriving in Portland.Inbound indirect flight with United, departs from Portland on Sat, 5 Dec, arriving in San Antonio International.Price includes taxes and charges.From $1,036, select.

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

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Antonio International to Portland flights are currently cheapest in September.
      Aug
      from $633
      Sep
      from $289
      Oct
      from $376
      Nov
      from $389
      Dec
      from $507
      Jan
      from $532
      Feb
      Find prices
      Mar
      from $605
      Apr
      Find prices
      May
      Find prices
      Jun
      Find prices
      Jul
      from $645

      San Antonio International to Portland: Alternative routes

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

      Portland

      10km from central Portland
      ClosestCheapest
      from $289
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      San Antonio to Portland: Flight information

      The things to know before you go.
      Cheapest flight found$289
      Cheapest month to flySeptember

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

      The best price we found for a return flight from San Antonio International to Portland is $289. 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 San Antonio International to Portland. But we found flights with one or more stops from $289.
      As of August 2026, there are no flights flying from San Antonio International to Portland.
      The cheapest month to fly from San Antonio International to Portland is usually September.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Antonio International Airport to Portland Airport on Friday, 25 September 2026.
      No airlines currently offer direct flights between San Antonio International Airport and Portland 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 Portland 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 Portland 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 Portland.

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

      • Portland is two hours behind San Antonio and observes the UTC-8 timezone.

      • Your SAT to PDX flight won't wait if you're running late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

      • Be prepared for bigger queues in popular months such as July. Arriving up to four hours in advance for an international flight and two hours for a domestic departure will give you ample time for security and boarding.

      • If you want to split up your journey, just uncheck 'Direct flights only' when searching for your ticket from San Antonio International Airport to Portland Airport. Here are the top stopovers between SAT and PDX:

        • Denver International Airport

        • Phoenix Sky Harbour Airport

        • Harry Reid International Airport

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

      • $172 is the best price for a one-way San Antonio International Airport to Portland Airport flight. A return flight starts at $288. These fares can change depending on availability.

      • Don't leave things to the last moment. You're more likely to get cheap tickets from SAT to PDX if you book early. Airlines often have some great early bird rates.

      • Getting cheap flights from San Antonio International Airport to Portland Airport is easy if you can be flexible with your dates. Use the 'Whole month' function to see the best prices across the month and bag a great deal.

      • There's no need to check back in every day to see if fares have dropped when you set up a Price Alert. We'll send you an update as soon as a special offer becomes available on cheap flights from SAT to PDX.

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

      Handy information about San Antonio International Airport (SAT)

      • You'll find SAT at 9800 Airport Boulevard.

      • San Antonio International Airport scores high marks for on-time performance. 82% of flights that depart SAT arrive at their destination without delay.

      • Central San Antonio to San Antonio International Airport is approximately 14 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're catching a taxi, ride-sharing or driving.

      • The trip on public transport takes about 50 minutes.

      • Taking an early flight from San Antonio International Airport to Portland Airport? Avoid the last-minute rush to the terminal (and enjoy a little extra shut-eye) by choosing one of these hotels close to SAT:

      Arriving at Portland Airport (PDX)

      When to fly to Portland Airport (PDX)

      • The quietest month for a flight from San Antonio International Airport to Portland Airport is March, while July is the most popular. Choose the ideal time to visit Portland based on whether you prefer a faster pace or a more relaxed vibe.

      • Lock in your flight from San Antonio International Airport to Portland Airport for August if you want to explore Portland during its warmest month. You can expect temperatures of between 12ºC (54ºF) and 31ºC (88ºF).

      • Search for cheap tickets from SAT to PDX in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between -2ºC (28ºF) and 10ºC (50ºF) on average.

      Explore more of the United States

      • You've done Portland, now it's time to discover other parts of the United States. Travel about 241 kilometres north to Seattle to check off its leading attractions. From Space Needle to Pike Place Market and Seattle Skyline, your itinerary will be busy.

      • If you're interested in discovering another major stop in the United States, head for Spokane, roughly 467 kilometres north-east of Portland. Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes are among the biggest draws.

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      Plan the rest of your trip from San Antonio to Portland

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