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Cheap Flights from Portland to San Diego starting at S$ 239

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Cheapest time to fly from Portland to San Diego

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.
Cheapest Airlines flying from Portland to San Diego

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From S$ 221
Breeze Airways
From S$ 239
Sun Country Airlines
From S$ 267
United Airlines
From S$ 297
Delta Air Lines
From S$ 475
American Airlines
From S$ 498
ANA airlines

Find more flights and airlines

Alternative Routes from Portland to San Diego

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Portland to San Diego.

  • Cheapest
    Frontier Airlines
    PWM
    13:30
    22h 46m
    2 transfer
    SAN
    09:16
    Portland International Jetport - San Diego International Airport
    Mon, Apr 1Frontier Airlines
    S$ 221
  • Frontier Airlines
    PWM
    13:30
    22h 46m
    2 transfer
    SAN
    09:16
    Portland International Jetport - San Diego International Airport
    Mon, Apr 1Frontier Airlines
    S$ 221
    Find More Flights

Frequently Asked Questions

Find cheapest flight ticket from Portland to San Diego

Cheapest direct flight price

S$ 239

Cheapest month

January

Peak season for travel

June