$535 Find Cheap Flights from Belfast to San Francisco - Compare and Save

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Everything you should know

Cheapest round-trip
$770
Typical prices: $826-$1,190
Delta
Mon 9/24Mon 10/1
BHD - SFO • 2 stops
Cheapest one-way
$535
Typical prices: $542-$791
Multiple Airlines
Sun 9/30
BFS - SFO • 3 stops
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.
Insights
Insights
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)
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

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

Thu, Sep 24 - Thu, Oct 1
Delta Logo
9:50 am - 12:34 amBHD  Belfast City-SFO San Francisco
22h 44m2 stops Amsterdam Schiphol New York John F Kennedy Intl
Delta Logo
10:29 am - 4:55 pmSFO  San Francisco-BHD Belfast City
22h 26m2 stops Seattle/Tacoma Intl Amsterdam Schiphol
$770Delta
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
6:40 am - 3:24 pmBFS  Belfast Intl-SFO San Francisco
16h 44m2 stops Edinburgh Turnhouse Toronto Pearson Intl
Multiple Airlines Logo
8:30 am - 6:55 pmSFO  San Francisco-BFS Belfast Intl
26h 25m2 stops Toronto Pearson Intl Edinburgh Turnhouse
$770Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
6:40 am - 8:47 pmBFS  Belfast Intl-SFO San Francisco
22h 07m3 stops Edinburgh Turnhouse Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
8:30 am - 6:55 pmSFO  San Francisco-BFS Belfast Intl
26h 25m2 stops Toronto Pearson Intl Edinburgh Turnhouse
$773Multiple Airlines
Mon, Oct 12 - Mon, Oct 19
Multiple Airlines Logo
9:40 am - 1:50 pmBHD  Belfast City-SFO San Francisco
36h 10m1 stop London Heathrow
Multiple Airlines Logo
7:30 pm - 8:35 pmSFO  San Francisco-BHD Belfast City
17h 05m1 stop London Heathrow
$774Multiple Airlines
Mon, Oct 12 - Mon, Oct 19
Multiple Airlines Logo
11:35 am - 12:30 amBHD  Belfast City-SFO San Francisco
20h 55m2 stops London Heathrow Chicago O'Hare Intl
Multiple Airlines Logo
4:35 pm - 3:30 pmSFO  San Francisco-BHD Belfast City
14h 55m1 stop London Heathrow
$780Multiple Airlines
Thu, Jan 21 - Mon, Jan 25
British Airways Logo
11:05 am - 6:45 pmBHD  Belfast City-SFO San Francisco
15h 40m1 stop London Heathrow
British Airways Logo
7:04 am - 10:50 amSFO  San Francisco-BHD Belfast City
19h 46m2 stops New York John F Kennedy Intl London Heathrow
$784British Airways
Thu, Jan 21 - Mon, Jan 25
British Airways Logo
11:05 am - 6:45 pmBHD  Belfast City-SFO San Francisco
15h 40m1 stop London Heathrow
British Airways Logo
5:25 pm - 4:05 pmSFO  San Francisco-BHD Belfast City
14h 40m1 stop London Heathrow
$786British Airways
Thu, Sep 24 - Thu, Oct 1
Delta Logo
5:30 pm - 11:45 amBHD  Belfast City-SFO San Francisco
26h 15m1 stop Amsterdam Schiphol
Delta Logo
10:29 am - 4:55 pmSFO  San Francisco-BHD Belfast City
22h 26m2 stops Seattle/Tacoma Intl Amsterdam Schiphol
$892Delta
Tue, Sep 22 - Tue, Sep 29
KLM Logo
5:30 pm - 11:45 amBHD  Belfast City-SFO San Francisco
26h 15m1 stop Amsterdam Schiphol
KLM Logo
7:00 am - 9:20 amSFO  San Francisco-BHD Belfast City
18h 20m2 stops New York John F Kennedy Intl Amsterdam Schiphol
$908KLM
Tue, Sep 22 - Tue, Sep 29
Delta Logo
9:50 am - 11:51 pmBHD  Belfast City-SFO San Francisco
22h 01m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
Delta Logo
10:29 am - 4:55 pmSFO  San Francisco-BHD Belfast City
22h 26m2 stops Seattle/Tacoma Intl Amsterdam Schiphol
$915Delta
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 from Belfast to San Francisco with more confidence.

How much is a round-trip flight from Belfast to San Francisco?

Round-trip flights from Belfast to San Francisco start at $770. Prices are below average for this route right now, with typical round-trip fares ranging from $826 to $1,190. The lowest price found in the past 5 days was $770 on Delta.

What's the cheapest day of the week to fly from Belfast to San Francisco?

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

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Key details for Belfast to San Francisco flights

Low season

December

Cheapest flight

$535
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Belfast Intl Airport to San Francisco

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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

  • 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.

  • 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
    Together, these airports account for 100% of one-stop bookings on this route.

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

    Yes. Being flexible with your travel dates can save you up to 54% on the Belfast to San Francisco route. 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.

  • 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.

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

    A nonstop flight from Belfast to San Francisco takes 0h 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.

  • Have flight prices from Belfast to San Francisco changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $770 to $1,933. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from Belfast to San Francisco looking right now?

    One-way fares from Belfast to San Francisco are currently lower than usual. Average one-way flight prices are about $570, which is 23% below the typical average for this route.

  • 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 58m 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 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

  • 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.

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 can be flexible, aim for a Wednesday departure instead of Sunday. On this route, Wednesday flights average $792 - about $917 less than Sunday (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

Everything you need to know for your flight from Belfast to San Francisco

Information on your arrival and departure airports

San Francisco (SFO)