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Cheap Flights from Portland (PDX) to San Diego (SAN)

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      Travellers and cabin class, 1 Adult, Economy
      Alaska Airlines
      Southwest Airlines
      Japan Airlines
      Condor
      Icelandair

      Compare Portland to San Diego International flight deals

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

      Book the best San Diego International fare with no extra fees

      Flight deals from Portland to San Diego International

      Looking for a cheap last-minute deal or the best return flight from Portland Airport to San Diego International Airport? If you want to travel next month, return fares start from $162. Find the lowest prices on one-way and return tickets right here.
      San Diego.$162 per passenger.Departing Mon, 11 Jan, returning Wed, 13 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Mon, 11 Jan, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Wed, 13 Jan, arriving in Portland.Price includes taxes and charges.From $162, select.
      San Diego.$162 per passenger.Departing Sat, 3 Oct, returning Sat, 3 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Sat, 3 Oct, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Sat, 3 Oct, arriving in Portland.Price includes taxes and charges.From $162, select.
      San Diego.$162 per passenger.Departing Sat, 26 Sep, returning Tue, 29 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Sat, 26 Sep, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Tue, 29 Sep, arriving in Portland.Price includes taxes and charges.From $162, select.
      San Diego.$162 per passenger.Departing Thu, 12 Nov, returning Thu, 12 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Thu, 12 Nov, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Thu, 12 Nov, arriving in Portland.Price includes taxes and charges.From $162, select.
      San Diego.$162 per passenger.Departing Thu, 3 Dec, returning Mon, 7 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Thu, 3 Dec, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Mon, 7 Dec, arriving in Portland.Price includes taxes and charges.From $162, select.
      San Diego.$185 per passenger.Departing Tue, 23 Feb, returning Fri, 26 Feb.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Tue, 23 Feb, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Fri, 26 Feb, arriving in Portland.Price includes taxes and charges.From $185, select.
      San Diego.$186 per passenger.Departing Tue, 29 Sep, returning Fri, 2 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Tue, 29 Sep, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Fri, 2 Oct, arriving in Portland.Price includes taxes and charges.From $186, select.
      San Diego.$190 per passenger.Departing Wed, 23 Sep, returning Wed, 16 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Wed, 23 Sep, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Wed, 16 Dec, arriving in Portland.Price includes taxes and charges.From $190, select.
      San Diego.$190 per passenger.Departing Sat, 31 Oct, returning Thu, 5 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Sat, 31 Oct, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Thu, 5 Nov, arriving in Portland.Price includes taxes and charges.From $190, select.
      San Diego.$212 per passenger.Departing Thu, 25 Feb, returning Fri, 5 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Thu, 25 Feb, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Fri, 5 Mar, arriving in Portland.Price includes taxes and charges.From $212, select.
      San Diego.$244 per passenger.Departing Mon, 25 Jan, returning Mon, 1 Feb.Return flight with United.Outbound indirect flight with United, departs from Portland on Mon, 25 Jan, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Mon, 1 Feb, arriving in Portland.Price includes taxes and charges.From $244, select.
      San Diego.$272 per passenger.Departing Fri, 27 Nov, returning Tue, 1 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Portland on Fri, 27 Nov, arriving in San Diego International.Inbound indirect flight with Southwest Airlines, departs from San Diego International on Tue, 1 Dec, arriving in Portland.Price includes taxes and charges.From $272, select.
      San Diego.$276 per passenger.Departing Thu, 31 Dec, returning Wed, 6 Jan.Return flight with United.Outbound indirect flight with United, departs from Portland on Thu, 31 Dec, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Wed, 6 Jan, arriving in Portland.Price includes taxes and charges.From $276, select.
      San Diego.$301 per passenger.Departing Tue, 24 Nov, returning Tue, 1 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Tue, 24 Nov, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Tue, 1 Dec, arriving in Portland.Price includes taxes and charges.From $301, select.
      San Diego.$343 per passenger.Departing Wed, 27 Jan, returning Thu, 4 Feb.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Wed, 27 Jan, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Thu, 4 Feb, arriving in Portland.Price includes taxes and charges.From $343, select.
      San Diego.$377 per passenger.Departing Mon, 8 Mar, returning Fri, 19 Mar.Return flight with United.Outbound indirect flight with United, departs from Portland on Mon, 8 Mar, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Fri, 19 Mar, arriving in Portland.Price includes taxes and charges.From $377, select.

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

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to San Diego International flights are currently cheapest in September.
      Sep
      from $162
      Oct
      from $162
      Nov
      from $162
      Dec
      from $162
      Jan
      from $162
      Feb
      from $185
      Mar
      from $377
      Apr
      from $439
      May
      from $439
      Jun
      Find prices
      Jul
      from $384
      Aug
      Find prices

      Direct flights from Portland to San Diego International

      Alaska Airlines
      Condor
      Icelandair
      Japan Airlines
      Southwest Airlines

      Portland to San Diego International: Alternative routes

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

      San Diego International

      4km from central San Diego
      ClosestCheapest
      from $162
      Search flights

      McClellan-Palomar

      48km from central San Diego
      from $438
      Search flights

      Portland to San Diego: Flight information

      The things to know before you go.
      Cheapest flight found$162
      Cheapest month to flyNovember
      Average flight time2 hrs, 31 mins
      Most popular airlineAlaska Airlines
      Average flights per week74

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

      The best price we found for a return flight from Portland to San Diego International is $162. 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 31 minutes is the average flight time from Portland to San Diego International.
      Alaska Airlines, Southwest Airlines and Japan Airlines fly direct from Portland to San Diego International.
      As of September 2026, there are 74 flights per week flying from Portland to San Diego International.
      The cheapest month to fly from Portland to San Diego International is usually November.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to San Diego International Airport on Thursday, 12 November 2026.
      Yes – the average flight time is 2 hours and 31 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 Diego 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 Diego is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Southwest Airlines offers the cheapest flight tickets to San Diego International.

      Flying from Portland Airport (PDX) to San Diego International Airport (SAN): what you need to know

      • Take a direct flight from Portland Airport to San Diego International Airport and you'll be in the air for an average of 2 hours 35 minutes.

      • San Diego's timezone is UTC-8, which is the same as Portland.

      • You can choose from 36 weekly Portland Airport to San Diego International Airport flights. The 07:00 departure with Alaska Airlines is the earliest flight you can take. Alaska Airlines operates the last service of the day at 21:30.

      • To ensure you catch your PDX to SAN flight, allow plenty of time for things like check-in and baggage drop. Turning up two hours ahead of international departures and an hour before domestic flights is the standard rule.

      • During popular months like July, you'll want to get to the airport earlier than usual. Plan to arrive two hours before a domestic departure and four hours ahead for an international flight whenever you're travelling during a peak period in general.

      • Alaska Airlines offers direct flights from Portland Airport to San Diego International Airport. Book with this popular airline, then get ready to discover the sights in San Diego — and maybe even more of the United States if time allows.

      • The airline most travellers prefer to fly with on this route is Alaska Airlines.

      • The most punctual carrier that operates PDX to SAN flights is Alaska Airlines. Its services arrive as scheduled 74.09% of the time.

      • If you'd like to include a stop along the way, just uncheck 'Direct flights only' when searching for your ticket from Portland Airport to San Diego International Airport. Here are the most popular stopovers between PDX and SAN:

        • Sacramento International Airport

        • San Jose International Airport

        • Oakland Metropolitan Oak Airport

      How to find the cheapest flights from Portland Airport (PDX) to San Diego International Airport (SAN)

      • The cheapest price we've found for a one-way Portland Airport to San Diego International Airport flight is $81. A round-trip ticket is currently $162. Depending on the availability and when you book, these fares could change.

      • It's usually best to book ahead of time if you want to get cheap tickets from PDX to SAN. That's because flight prices are based on demand, which tends to rise closer to the date of departure.

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

      • Landing cheap flights from PDX to SAN is a cinch with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you as soon as a new deal comes up.

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

      Handy information about Portland Airport (PDX)

      • You'll find PDX at 7000 NE Airport Way.

      • Portland Airport scores high marks for on-time performance. 83% of flights that depart PDX land on time.

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

      • Expect a trip time of around 40 minutes when using public transport.

      • Have an early flight from Portland Airport to San Diego International Airport? Avoid the stress of rushing to the terminal (and catch some extra z's) by choosing one of these stays near PDX:

      Arriving at San Diego International Airport (SAN)

      Getting from San Diego International Airport (SAN) to central San Diego

      • The address for SAN is N Harbour Dr.

      • San Diego International Airport is approximately 5 kilometres from the centre of San Diego. The drive time takes around 15 minutes.

      • It typically takes 25 minutes if you're travelling on public transport.

      When to fly to San Diego International Airport (SAN)

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

      • Lock in your flight from Portland Airport to San Diego International Airport for August if you want to explore San Diego during its warmest month. You can expect temperatures of between 16ºC (61ºF) and 27ºC (81ºF).

      • February has average temperatures of between 8ºC (46ºF) and 22ºC (72ºF). Search for cheap tickets from PDX to SAN sometime then if you want to travel in cooler conditions.

      Explore more of the United States

      • You've visited San Diego, now it's time to discover more of the United States. Travel around 177 kilometres north-west to Los Angeles to tick off its top attractions. From Hollywood Sign to Universal Studios Hollywood and Hollywood Bowl, you'll have a packed itinerary ahead.

      • If there's time to check out another major destination in the United States, head for Phoenix, about 483 kilometres east of San Diego. Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum are key highlights.

      Plan smart, explore more

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