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Philadelphia San Diego - Cheap flights

Special flight deals from Philadelphia 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 316 USD

  • Cheapest month to travel

    October

  • The cheapest day to fly

    Monday

  • Lowest prices

    7 days before
Sep
317 USD
Oct
316 USD
Nov
390 USD
Dec
436 USD
Jan
??
Feb
??
Mar
??
Apr
??
May
??
Jun
??
Jul
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Aug
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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

    957 USD

  • 3 months before

    from

    649 USD

  • 30 days before

    from

    802 USD

  • 7 days before

    from

    563 USD

  • 1 day before

    from

    771 USD

Discover the cheapest day to fly

Discover on which day of the week flights are usually the most affordable.
403 USD
Mon
784 USD
Tue
607 USD
Wed
646 USD
Thu
779 USD
Fri
932 USD
Sat
644 USD
Sun

General information

  • Local time (UTC-8)

  • Flight time from Philadelphia

  • 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.