$437 Find Cheap Flights from Belfast to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to San Francisco departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to San Francisco, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Belfast to San Francisco

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Belfast to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Belfast to San Francisco

Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
10:40 am - 6:45 pmBHD-SFO
16h 05m1 stop
American Airlines Logo
10:37 am - 10:40 amSFO-BHD
17h 03m2 stops
$639American Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
10:40 am - 6:45 pmBHD-SFO
16h 05m1 stop
American Airlines Logo
10:24 am - 10:40 amSFO-BHD
17h 16m2 stops
$640American Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
6:35 am - 6:45 pmBHD-SFO
20h 10m1 stop
American Airlines Logo
9:40 pm - 6:35 pmSFO-BHD
13h 55m1 stop
$642American Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
11:05 am - 10:18 pmBHD-SFO
19h 13m2 stops
American Airlines Logo
10:24 am - 2:15 pmSFO-BHD
20h 51m2 stops
$644American Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
6:35 am - 5:14 pmBHD-SFO
18h 39m2 stops
American Airlines Logo
6:09 pm - 6:35 pmSFO-BHD
17h 26m2 stops
$645American Airlines
Find Deal
Thu, Oct 9 - Thu, Oct 16
Delta Logo
6:30 am - 5:45 pmBHD-SFO
19h 15m2 stops
Delta Logo
1:45 pm - 9:15 pmSFO-BHD
23h 30m2 stops
$663Delta
Find Deal
Thu, Oct 9 - Thu, Oct 16
Delta Logo
6:30 am - 5:45 pmBHD-SFO
19h 15m2 stops
Delta Logo
1:45 pm - 4:55 pmSFO-BHD
19h 10m1 stop
$692Delta
Find Deal
Fri, Oct 31 - Fri, Nov 7
Multiple Airlines Logo
8:05 am - 12:50 pmBFS-SFO
35h 45m2 stops
Multiple Airlines Logo
3:40 pm - 10:00 pmSFO-BFS
22h 20m2 stops
$771Multiple Airlines
Find Deal
Thu, Oct 9 - Thu, Oct 16
Multiple Airlines Logo
6:35 am - 1:50 pmBHD-SFO
15h 15m1 stop
Multiple Airlines Logo
4:30 pm - 3:30 pmSFO-BHD
15h 00m1 stop
$825Multiple Airlines
Find Deal
Sat, Sep 27 - Fri, Oct 3
KLM Logo
6:30 am - 11:45 amBHD-SFO
13h 15m1 stop
KLM Logo
1:45 pm - 9:15 pmSFO-BHD
23h 30m1 stop
$1,052KLM
Find Deal

Everything you should know

Cheapest round-trip
$639
American Airlines
Thu 3/5Mon 3/9
BHD - SFO • 1 stop
Cheapest one-way
$437
Multiple Airlines
Thu 10/2
BHD - SFO • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Booking Insights

KAYAK's insights & trends for Belfast to San Francisco flights

Get data-powered insights and trends into flights from Belfast to San Francisco to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Belfast to San Francisco?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Belfast to San Francisco were found on American Airlines ($639) and Delta ($663).

Find deals

Good to know

Cheapest flight$437
Flight from Belfast City 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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Belfast to San Francisco

  • What is the cheapest flight from Belfast to San Francisco?

    In the last 3 days, the lowest price for a flight from Belfast to San Francisco was $437 for a one-way ticket and $639 for a round-trip.

  • Do I need a passport to fly between Belfast and San Francisco?

    Yes

  • Which airports will I be using when flying from Belfast to San Francisco?

    Belfast has 2 major airports: Belfast Intl and Belfast City. San Francisco is the only airport in San Francisco. You’ll usually find the cheapest deals if you fly from Belfast City Airport.

  • Which aircraft models fly most regularly from Belfast to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Belfast to San Francisco?

    oneworld, and SkyTeam are the airline alliances operating flights between Belfast and San Francisco, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Belfast to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Belfast to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Belfast to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Belfast is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Belfast to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Belfast with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Belfast up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

Information on your arrival and departure airports

San Francisco (SFO)

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