How does KAYAK find such low prices on flights from Northern Ireland 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 Northern Ireland to San Francisco. Visit our flight page for the latest deals!>/a>

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Northern Ireland is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Northern Ireland 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 Northern Ireland with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Northern Ireland 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 Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$419 CHEAP FLIGHTS from Northern Ireland to San Francisco

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

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Cheapest round-trip

$722

American Airlines

Thu 1/15Mon 1/19

BHD - SFO • 1 stop

Cheapest one-way

$419

Multiple Airlines

Thu 1/15

BFS - SFO • 3 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to San Francisco!

Flight Deals

Cheap Flights from Northern Ireland to San Francisco

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Northern Ireland 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.

Round-trip

One-way

Recent round-trip flight deals from Northern Ireland to San Francisco

Thu, Jan 15 - Mon, Jan 19

10:40 am - 6:45 pmBHD-SFO

16h 05m1 stop

8:40 pm - 6:35 pmSFO-BHD

13h 55m1 stop

$722American Airlines

Find Deal

Thu, Jan 15 - Mon, Jan 19

6:35 am - 6:45 pmBHD-SFO

20h 10m1 stop

8:40 pm - 8:15 pmSFO-BHD

15h 35m1 stop

$725American Airlines

Find Deal

Thu, Jan 15 - Mon, Jan 19

6:35 am - 6:45 pmBHD-SFO

20h 10m1 stop

8:40 pm - 8:15 pmSFO-BHD

15h 35m1 stop

$727American Airlines

Find Deal

Thu, Jan 15 - Mon, Jan 19

6:35 am - 6:45 pmBHD-SFO

20h 10m1 stop

7:00 am - 10:40 amSFO-BHD

19h 40m2 stops

$756American Airlines

Find Deal

Thu, Jan 15 - Mon, Jan 19

9:05 am - 3:00 pmBHD-SFO

13h 55m1 stop

10:11 am - 2:15 pmSFO-BHD

20h 04m2 stops

$759American Airlines

Find Deal

Thu, Jan 15 - Mon, Jan 19

9:05 am - 6:45 pmBHD-SFO

17h 40m1 stop

11:15 am - 6:35 pmSFO-BHD

23h 20m2 stops

$761American Airlines

Find Deal

Thu, Jan 15 - Mon, Jan 19

6:35 am - 6:30 pmBHD-SFO

19h 55m2 stops

10:11 am - 2:15 pmSFO-BHD

20h 04m2 stops

$764American Airlines

Find Deal

Thu, Jan 15 - Sun, Mar 15

9:05 am - 8:10 pmBHD-SFO

19h 05m2 stops

4:35 pm - 4:50 pmSFO-BHD

17h 15m2 stops

$771British Airways

Find Deal

Thu, Jan 15 - Sun, Feb 15

8:00 pm - 3:00 pmBHD-SFO

27h 00m1 stop

11:59 pm - 10:40 amSFO-BHD

26h 41m2 stops

$774British Airways

Find Deal

Thu, Jan 15 - Sun, Feb 15

2:25 pm - 4:30 pmBFS-SFO

34h 05m2 stops

6:20 pm - 10:10 pmSFO-BFS

19h 50m2 stops

$970Multiple Airlines

Find Deal

Useful Info

High season	August
Cheapest flight	$419

Most popular time to fly and prices are also 8% lower on average.

Flight from Belfast Intl Airport to San Francisco

How does KAYAK find such low prices on flights from Northern Ireland 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 Northern Ireland to San Francisco.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Northern Ireland to San Francisco?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Northern Ireland 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 Northern Ireland 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 Northern Ireland with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Northern Ireland 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 Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Calistoga

Marina

Rohnert Park

Capitola

Emeryville

Pacifica

Millbrae

Campbell

Mill Valley

Newark

Novato

Windsor

Belmont

Union City

Richmond

West Sacramento

Los Altos

Corte Madera

Jenner

American Canyon

Everything you need to know for your flight to San Francisco

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Information on the airport you'll fly into in San Francisco

San Francisco (SFO)

$419 Find Cheap Flights from Northern Ireland to San Francisco

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

Everything you should know

Cheap Flights from Northern Ireland to San Francisco

Recent round-trip flight deals from Northern Ireland to San Francisco

Recent one-way flight deals from Northern Ireland to San Francisco

Good to know

FAQs for booking flights from Northern Ireland to San Francisco

How does KAYAK find such low prices on flights from Northern Ireland 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 Northern Ireland to San Francisco.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Northern Ireland 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 Northern Ireland 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 Northern Ireland with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Northern Ireland 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 Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near San Francisco?

Everything you need to know for your flight to San Francisco

Information on the airport you'll fly into in San Francisco

Cabin class types available on flights to Northern Ireland

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

Find direct flights for San Francisco

Flights to other popular destinations

Flights from domestic origins to San Francisco

Choose which airport to fly into in San Francisco

Find deals for your return flight