Cheap Flights from Portland to San Diego International

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

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 May.

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.

Portland to San Diego: Flight information

The things to know before you go.
Cheapest flight foundR 2,616
Cheapest month to flyMay

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 R 5,751. 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 Diego International. But we found flights with one or more stops from R 5,751.
As of February 2026, there are no flights flying from Portland to San Diego International.
The cheapest month to fly from Portland to San Diego 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 Diego International Airport on Tuesday, 21 April 2026.
No airlines currently offer direct flights between Portland Airport and San Diego 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 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, United offers the cheapest flight tickets to San Diego International.

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

  • San Diego's timezone is UTC-7, which makes San Diego three hours behind Portland.

  • Get to the airport on time so you don't miss your PWM to SAN flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.

  • During popular months such as August, you'll want to get to the airport earlier. Arrive two hours before a domestic departure and four hours ahead for international flights when you fly during a high season in general.

  • We make it a piece of cake to book a flight with a stopover. To see all your options for tickets from Portland International Jetport Airport to San Diego International Airport, deselect 'Direct flights only.' Then, choose a flight that has a stop long enough to explore the city of your choice. Stopovers between PWM and SAN include:

    • O'Hare International Airport

    • Washington Dulles International Airport

    • Philadelphia International Airport

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

  • R 2,616 is currently the best price for a one-way Portland International Jetport Airport to San Diego International Airport flight. A return flight starts from R 5,751. These prices may change depending on demand and availability.

  • It's usually smart to book early if you want to get cheap tickets from PWM to SAN. That's because flight prices are based on demand, which tends to increase closer to the date of departure.

  • The 'Whole month' search tool shows you the cheapest flights from Portland International Jetport Airport to San Diego International Airport across each month. It's a great way to find a bargain if your plans are flexible.

  • Landing cheap flights from PWM to SAN is a cinch with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when a new discounted fare appears.

  • Lock in the perfect flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Portland International Jetport Airport to San Diego International Airport, use the 'Sort by' tool. You can also filter results by arrival and departure times, airline, and number of stops.

Handy information about Portland International Jetport Airport (PWM)

  • You'll find PWM at 1001 Westbrook Street.

  • Portland International Jetport Airport scores high marks for on-time performance. 82.15% of flights that take off from PWM arrive at their destination on time.

  • To get to Portland International Jetport Airport from central Portland, it takes about 15 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 8 kilometres from the airport to the city centre.

  • The journey when using public transport will take about 40 minutes.

  • Looking for a handy hotel near PWM? If you're boarding an early flight from Portland International Jetport Airport to San Diego International Airport, these accommodation options will have you sleeping moments from your departure lounge:

Arriving at San Diego International Airport (SAN)

  • If you're coming in on a late Portland International Jetport Airport to San Diego International Airport flight, nothing tops the convenience of being near the terminal. Grab your suitcases from the carousel and then be showered and resting shortly after at one of these hotels near SAN:

  • Pick up a San Diego International Airport rental car and explore San Diego and beyond with your own wheels. Thrifty, Dollar and Budget are popular outlets to choose from here.

  • Booking your vehicle from San Diego International Airport about two weeks ahead boosts your odds of scoring a great price.

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

  • You'll find SAN at Airport Drive.

  • San Diego International Airport to the centre of San Diego has a drive time of around 10 minutes. It's approximately 5 kilometres away.

  • If you're travelling by public transport, expect a journey time of roughly 20 minutes.

When to fly to San Diego International Airport (SAN)

  • The quietest month for a flight from Portland International Jetport Airport to San Diego International Airport is May, while July is the busiest. Choose the best time to go to San Diego based on whether you prefer a more fast-paced or easygoing experience.

  • The warmest month in San Diego is August, with temperatures ranging between 17ºC (63ºF) and 28ºC (82ºF). Lock in your flights from Portland International Jetport Airport to San Diego International Airport in this month if this is the kind of weather you like.

  • February sees average temperatures of between 7ºC (45ºF) and 23ºC (73ºF). Look for cheap tickets from PWM to SAN around that time if you like travelling in cooler conditions.

Explore more of United States

  • You've visited San Diego, now it's time to explore other parts of United States. Travel around 177 kilometres north-west to Los Angeles to tick off its leading attractions. From Griffith Observatory to The Broad and La Brea Tar Pits & Museum, you'll have a packed itinerary ahead.

  • If there's time to check out another well-known destination in United States, head for Phoenix, roughly 483 kilometres east of San Diego. Desert Botanical Garden, Heard Museum and Papago Park are key highlights.

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