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Portland San Diego - Cheap flights

Special flight deals from Portland to San Diego

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Find the best time to book cheap flights to San Diego

Flexible on travel dates? Discover the cheapest month to fly to San Diego

  • Cheapest round-trip flight

    from 117 USD

  • Cheapest month to travel

    January, February, September, October

  • The cheapest day to fly

    Saturday

  • Lowest prices

    6 months before
Sep
117 USD
Oct
117 USD
Nov
??
Dec
128 USD
Jan
117 USD
Feb
117 USD
Mar
522 USD
Apr
??
May
??
Jun
326 USD
Jul
??
Aug
??

When is the best time to buy flight tickets?

Find out how far in advance it's worth booking round-trip flights.

  • 6 months before

    from

    426 USD

  • 3 months before

    from

    437 USD

  • 30 days before

    from

    552 USD

  • 7 days before

    from

    1,014 USD

  • 1 day before

    from

    617 USD

Discover the cheapest day to fly

Discover on which day of the week flights are usually the most affordable.
822 USD
Mon
312 USD
Tue
628 USD
Wed
341 USD
Thu
420 USD
Fri
224 USD
Sat
729 USD
Sun

General information

  • Local time (UTC-8)

  • Flight time from Portland

  • Local currency

    USD
San Diego
San Diego is a city located on the Pacific Ocean at the southwestern tip of California, near the Mexican border. It's the second-largest city in the state and the eighth in the USA. Renowned for its beautiful beaches and mild climate, San Diego attracts tourists year-round. Average temperatures range from 15 °C in winter to 25 °C in summer. Don't miss the historic Old Town park, the zoo, and Balboa Park. Spring and autumn are the ideal seasons to visit when the weather is most pleasant.