Find cheap flights from Belfast to San Francisco - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Nonstop flights
Not available
There are currently no direct flights between Belfast and San Francisco. You'll need to take a connecting flight to reach the destination.
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When to travel
May
Cheapest • 27% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Amsterdam Schiphol (AMS)
Cheapest • Avg $913 (round-trip)
London Heathrow (LHR)
Shortest trip • 14h 39m (one-way)
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Cheap Flights from Belfast to San Francisco

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Belfast to San Francisco

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BF1  Bere Ferrers-SFO San Francisco Airport
5037 mimulti-stop
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SFO  San Francisco Airport-BF1 Bere Ferrers
5037 mimulti-stop
Multiple Airlines
Booking Insights

Price, demand and travel trends for Belfast 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's the cheapest day of the week to fly from Belfast to San Francisco?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Belfast to San Francisco. It’s 18% cheaper than the average day, while Sunday is the most expensive, with prices 77% higher.

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Key details for Belfast to San Francisco flights

Low season

December
Beat the crowds with an average 53% drop in travelers.

When to book flights from Belfast to San Francisco

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

Your Belfast to San Francisco flight questions, answered

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

  • What cabin classes can I book on flights from Belfast to San Francisco?

    Only Economy Class is available on flights from Belfast to San Francisco.

  • How long is a flight from Belfast to San Francisco?

    A nonstop flight from Belfast to San Francisco takes 00m, covering 5,037 miles.

  • Do I need a passport to fly from Belfast 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.

  • How much should I expect to pay for a Belfast to San Francisco flight?

    Round-trip flights from Belfast to San Francisco range from $826 to $1,190, with an average of $961 over the past 12 months. Anything below $826 counts as a good deal.

  • What car rental options are available at San Francisco Airport (SFO)?

    San Francisco Airport (SFO) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:

    • Thrifty
    • Europcar
    • Dollar
    • Hertz
    • Fox

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

    Flights from Belfast to San Francisco may depart from several airports in Belfast area, including Belfast Intl (BFS) and Belfast City (BHD). Flights usually arrive at San Francisco (SFO).

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

    Connecting flights from Belfast to San Francisco most commonly pass through:

    • London Heathrow (LHR) - 87% of one-stop connections
    • Amsterdam Schiphol (AMS) - 13% of one-stop connections

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

    Yes. Flexible dates can save you up to 54% on flights from Belfast to San Francisco. Wednesday is the cheapest departure day at $792 round-trip on average, while Sunday is the most expensive at $1,709, a difference of $917.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Belfast to San Francisco?

    Flying via London Heathrow (LHR) gives the shortest average 1-stop total travel time at 14h 39m, compared with 17h 56m via Amsterdam Schiphol (AMS).

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

    San Francisco is 8 hours behind Belfast (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 Fisherman's Wharf, Union Square and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

Your guide to booking Belfast 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 Sunday. On this route, Wednesday flights average $792, about $917 less than Sunday fares (54% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Belfast to San Francisco trip for May. Fares historically average $700 round-trip in that month - typically $1,042 less than the most expensive month, which is March (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 Belfast to San Francisco

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

Car rentals in San Francisco
Hotels in San Francisco
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