SFO

Find Cheap Flights from Portsmouth to San Francisco – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Price, demand, and travel trends for Portsmouth to San Francisco flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What is the cheapest stopover airport when flying from Portsmouth to San Francisco?

Flights via Dublin (DUB) offer the most affordable fares, with an average return price of £843. Based on KAYAK data over the past 3 months.

When flying from Portsmouth to San Francisco, which airport offers the shortest stopover?

Dublin (DUB) had the shortest average connection time for Portsmouth to San Francisco stopovers at 8h 59m over the past 3 months.

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When to book flights from Portsmouth to San Francisco

Are your dates flexible? Find out the best times to travel from Portsmouth to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Portsmouth to San Francisco flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Do I need a passport to fly from Portsmouth to San Francisco?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Which airports can I use when flying from Portsmouth to San Francisco?

    Flights from Portsmouth to San Francisco usually depart from Southampton Eastleigh (SOU) and arrive at San Francisco (SFO).

  • Which airports do connecting flights from Portsmouth to San Francisco pass through?

    Most connecting flights from Portsmouth to San Francisco pass through Dublin (DUB), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Portsmouth to San Francisco?

    Yes. Flexible dates can save you up to 26% on flights from Portsmouth to San Francisco. Wednesday is the cheapest departure day at £719 return on average, while Monday is the most expensive at £966, a difference of £248.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Portsmouth and San Francisco?

    San Francisco is 7 hours behind Portsmouth (Pacific Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in San Francisco?

    Some of the most popular sights in San Francisco are Union Square, Fisherman's Wharf, and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

Your guide to booking Portsmouth to San Francisco flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Monday. On this route, Wednesday flights average £719, about £248 less than Monday fares (26% savings) based on the last 12 months.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to San Francisco Airport.

    • Grand Hyatt At Sfo

More options for your flight from Portsmouth to San Francisco

Complete your trip to San Francisco with a hotel stay or car hire

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