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

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Flight deals from Portland to San Diego

Looking for a cheap last-minute deal or the best return flight from Portland Airport to San Diego? If you want to travel next month, return fares start from $262. Find the lowest prices on one-way and return tickets right here.
San Diego.$238 per passenger.Departing Mon, 28 Sep, returning Wed, 30 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Mon, 28 Sep, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Wed, 30 Sep, arriving in Portland.Price includes taxes and charges.From $238, select.
San Diego.$246 per passenger.Departing Wed, 19 Aug, returning Tue, 25 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Wed, 19 Aug, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Tue, 25 Aug, arriving in Portland.Price includes taxes and charges.From $246, select.
San Diego.$246 per passenger.Departing Wed, 14 Oct, returning Wed, 21 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Portland on Wed, 14 Oct, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Wed, 21 Oct, arriving in Portland.Price includes taxes and charges.From $246, select.
San Diego.$262 per passenger.Departing Mon, 1 Mar, returning Fri, 5 Mar.Return flight with United.Outbound indirect flight with United, departs from Portland on Mon, 1 Mar, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Fri, 5 Mar, arriving in Portland.Price includes taxes and charges.From $262, select.
San Diego.$262 per passenger.Departing Sun, 26 Jul, returning Tue, 28 Jul.Return flight with United.Outbound indirect flight with United, departs from Portland on Sun, 26 Jul, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Tue, 28 Jul, arriving in Portland.Price includes taxes and charges.From $262, select.
San Diego.$262 per passenger.Departing Tue, 29 Sep, returning Sat, 3 Oct.Return flight with United.Outbound indirect flight with United, departs from Portland on Tue, 29 Sep, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sat, 3 Oct, arriving in Portland.Price includes taxes and charges.From $262, select.
San Diego.$263 per passenger.Departing Wed, 17 Jun, returning Sat, 11 Jul.Return flight with United.Outbound indirect flight with United, departs from Portland on Wed, 17 Jun, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sat, 11 Jul, arriving in Portland.Price includes taxes and charges.From $263, select.
San Diego.$263 per passenger.Departing Fri, 20 Nov, returning Sun, 22 Nov.Return flight with United.Outbound indirect flight with United, departs from Portland on Fri, 20 Nov, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sun, 22 Nov, arriving in Portland.Price includes taxes and charges.From $263, select.
San Diego.$263 per passenger.Departing Sat, 16 Jan, returning Sat, 23 Jan.Return flight with United.Outbound indirect flight with United, departs from Portland on Sat, 16 Jan, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sat, 23 Jan, arriving in Portland.Price includes taxes and charges.From $263, select.
San Diego.$274 per passenger.Departing Sat, 31 Oct, returning Sat, 7 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Portland on Sat, 31 Oct, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Sat, 7 Nov, arriving in Portland.Price includes taxes and charges.From $274, select.
San Diego.$307 per passenger.Departing Sat, 26 Sep, returning Thu, 1 Oct.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 Thu, 1 Oct, arriving in Portland.Price includes taxes and charges.From $307, select.
San Diego.$308 per passenger.Departing Sat, 31 Oct, returning Sat, 7 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 Sat, 7 Nov, arriving in Portland.Price includes taxes and charges.From $308, select.
San Diego.$309 per passenger.Departing Thu, 10 Dec, returning Tue, 15 Dec.Return flight with United.Outbound indirect flight with United, departs from Portland on Thu, 10 Dec, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Tue, 15 Dec, arriving in Portland.Price includes taxes and charges.From $309, select.
San Diego.$321 per passenger.Departing Tue, 23 Jun, returning Tue, 30 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Portland on Tue, 23 Jun, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Tue, 30 Jun, arriving in Portland.Price includes taxes and charges.From $321, select.
San Diego.$338 per passenger.Departing Tue, 9 Feb, returning Tue, 16 Feb.Return flight with United.Outbound indirect flight with United, departs from Portland on Tue, 9 Feb, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Tue, 16 Feb, arriving in Portland.Price includes taxes and charges.From $338, select.
San Diego.$339 per passenger.Departing Wed, 27 Jan, returning Thu, 4 Feb.Return flight with United.Outbound indirect flight with United, departs from Portland on Wed, 27 Jan, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Thu, 4 Feb, arriving in Portland.Price includes taxes and charges.From $339, select.

Find the cheapest month to fly from Portland to San Diego

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to San Diego flights are currently cheapest in September.
Jun
from $321
Jul
from $262
Aug
from $246
Sep
from $238
Oct
from $246
Nov
from $263
Dec
from $309
Jan
from $263
Feb
from $338
Mar
from $262
Apr
Find prices
May
Find prices

Direct flights from Portland to San Diego

Alternative Portland to San Diego routes

Looking for the cheapest, fastest or easiest route from Portland to San Diego? You could fly into the following airports instead.

San Diego International

4km from central San Diego
ClosestCheapest
from $238
Search flights

McClellan-Palomar

48km from central San Diego
from $437
Search flights

Portland to San Diego: Flight information

The things to know before you go.
Cheapest flight found$238
Cheapest month to flySeptember
Average flight time2 hrs, 32 mins
Most popular airlineAlaska Airlines
Average flights per week71

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

There are 2 airports in San Diego: San Diego International and McClellan-Palomar.
The best price we found for a return flight from Portland to San Diego is $238. 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 32 minutes is the average flight time from Portland to San Diego.
Alaska Airlines, Southwest Airlines and Japan Airlines fly direct from Portland to San Diego.
As of June 2026, there are 79 flights per week flying from Portland to San Diego.
The cheapest month to fly from Portland to San Diego is usually September.
If you're flying from Portland Airport, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the centre of San Diego. We've found flights into this airport from $238.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to San Diego on Monday, 28 September 2026.
Yes – the average flight time is 2 hours and 32 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 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.
In June, the average temperature is usually around 19°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
Currently, Southwest Airlines offers the cheapest flight tickets to San Diego.

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

  • Around 2 hours 40 minutes is how long you'll be travelling on a direct flight from Portland International Airport to San Diego.

  • San Diego and Portland (where Portland International Airport is located) are both in the UTC-8 timezone. That means there's no time difference to adjust for.

  • The busiest route is from Portland International Airport (PDX) to San Diego International Airport (SAN). You can choose from 35 weekly services between these two airports. If you want to get on your way as soon as you can, the earliest flight from PDX to SAN is the 07:00 Alaska Airlines service. If you prefer to travel later, the last departure is at 21:30 with Alaska Airlines.

  • Give yourself enough time to get on your PDX to San Diego flight. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • You'll likely experience bigger queues in popular months like July. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a smart move.

  • Start your trip at PDX and fly straight to San Diego International Airport (SAN). That will be your arrival point when searching for Portland International Airport to San Diego tickets.

  • Book your favourite seat with Alaska Airlines. This popular carrier operates direct flights from Portland International Airport to San Diego.

  • Located around 10 kilometres from the centre of Portland, PDX can be reached in about 20 minutes by car, depending on traffic. Travelling on public transport takes roughly 40 minutes.

  • Searching for a hotel near PDX? If you're boarding an early flight from Portland International Airport to San Diego, these accommodation options set you up for a seamless send-off:

  • Portland International Airport scores top marks for on-time performance. 83% of flights that take off from PDX land on time.

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

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

  • The lowest price we've seen for a one-way Portland International Airport to San Diego flight is $99. The cheapest price for a return flight is $238. Bear in mind fares may change due to demand at the time of booking.

  • Don't leave everything to the last moment. You're more likely to land cheap flights from PDX to San Diego if you book ahead. Airlines often have some great early bird deals.

  • If you're willing to be flexible with your trip dates, make the most of the 'Whole month' search tool. It'll show you the lowest price across every month when looking for your Portland International Airport to San Diego ticket.

  • Picking up a cheap flight from PDX to San Diego is easy with Price Alerts. Simply create one of these automatic notifications and we'll let you know as soon as a deal gets even better.

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

Airports in San Diego

San Diego International Airport (SAN)

  • San Diego International Airport (SAN) is around 5 kilometres from central San Diego. If you're catching a taxi or a ride-share, the drive takes about 15 minutes.

  • Getting to the centre on public transport takes about 25 minutes.

  • Look into staying at a hotel near SAN if you have a late flight from Portland International Airport to San Diego. Check in to one of these accommodation options and skip the long transfer:

  • Reserving your vehicle from San Diego International Airport about two weeks ahead of your flight from PDX to San Diego can help you lock in the best possible rate.

  • SAN is located at N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • Central San Diego is around 48 kilometres from McClellan-Palomar Airport (CLD). Disembark your flight from Portland International Airport to San Diego and then be on the lookout for any airport signs directing you to the city centre.

  • You'll find some comfortable places to drop your things at near CLD. Tuck yourself in and get cosy after your PDX to San Diego flight at one of these perfectly located options:

  • Save time at the rental desk by having everything prearranged. Secure your ride from CLD in advance so you can just get the keys and go.

Best time to go to San Diego

  • December is the quietest month for flights from Portland International Airport to San Diego, while July is the most popular. Figure out the ideal time to go to San Diego based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Book a Portland International Airport to San Diego plane ticket with a departure in August if you want to visit the city during its warmest month. You can expect temperatures to range from 16ºC (61ºF) to 27ºC (81ºF).

  • Search for cheap tickets from PDX to San Diego in February if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 8ºC (46ºF) and 22ºC (72ºF) on average.

More about San Diego

  • When it comes to looking for somewhere to rest your head, you'll find the best places to stay in San Diego right here. Explore these hotels once you've booked your flight from Portland International Airport to San Diego:

  • There are so many things to see and do in this city it can be difficult to know where to start. San Diego Balboa Park, San Diego Zoo and USS Midway Museum are highlights which should feature on any well-planned San Diego itinerary.

Explore more of the United States

  • San Diego has plenty to offer, but there are so many other corners of the United States you'll want to see. About 177 kilometres northwest of San Diego, a visit to Los Angeles will keep you busy. Don't miss top attractions like Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

  • If you want to check out another corner of the United States, consider Phoenix, about 483 kilometres east of San Diego. Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum are among its highlights.

Plan the rest of your trip from Portland to San Diego

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