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 return 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>

£444 CHEAP FLIGHTS from Northern Ireland to San Francisco

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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 return 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 return flight deals from Northern Ireland to San Francisco

Fri, 12 Sep - Fri, 19 Sep

19:30 - 13:50BHD-SFO

26h 20m1 stop

22:30 - 10:10SFO-BHD

27h 40m2 stops

£444British Airways

Find Deal

Fri, 12 Sep - Fri, 19 Sep

20:05 - 18:35BHD-SFO

30h 30m2 stops

22:30 - 10:10SFO-BHD

27h 40m2 stops

£500

Find Deal

Fri, 12 Sep - Fri, 19 Sep

06:30 - 11:45BHD-SFO

13h 15m1 stop

13:45 - 21:15SFO-BHD

23h 30m1 stop

£522KLM

Find Deal

Wed, 20 Aug - Fri, 5 Sep

06:50 - 18:10BHD-SFO

19h 20m2 stops

10:22 - 10:10SFO-BHD

39h 48m2 stops

£543

Find Deal

Wed, 20 Aug - Fri, 5 Sep

06:30 - 11:45BHD-SFO

13h 15m1 stop

13:45 - 21:15SFO-BHD

23h 30m1 stop

£545KLM

Find Deal

Wed, 2 Jul - Wed, 9 Jul

16:05 - 09:27BHD-SFO

25h 22m2 stops

19:20 - 18:40SFO-BHD

15h 20m1 stop

£549British Airways

Find Deal

Wed, 20 Aug - Fri, 5 Sep

06:30 - 17:59BHD-SFO

19h 29m2 stops

13:45 - 21:15SFO-BHD

23h 30m1 stop

£550Delta

Find Deal

Wed, 20 Aug - Fri, 5 Sep

16:05 - 22:57BHD-SFO

38h 52m2 stops

10:22 - 10:10SFO-BHD

39h 48m2 stops

£573Finnair

Find Deal

Wed, 20 Aug - Fri, 5 Sep

16:05 - 18:12BHD-SFO

34h 07m2 stops

10:22 - 10:10SFO-BHD

39h 48m2 stops

£573Finnair

Find Deal

Wed, 20 Aug - Fri, 5 Sep

06:30 - 15:55BHD-SFO

17h 25m2 stops

13:45 - 21:15SFO-BHD

23h 30m1 stop

£589Delta

Find Deal

Useful Info

Low season	January
High season	July
Cheapest flight	£433

Best time to beat the crowds (8% less expensive on average)

Most popular time to fly (33% more expensive 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 return 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.

Carmel-by-the-Sea

Berkeley

Palo Alto

Newark

Redwood City

Scotts Valley

Roseville

San Lorenzo

Union City

San Ramon

Tiburon

Guerneville

Martinez

Hollister

San Carlos

Dixon

Cupertino

Los Banos

Woodland

Pleasant Hill

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)

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SFO

£444 Find Cheap Flights from Northern Ireland to San Francisco

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

Cheap Flights from Northern Ireland to San Francisco

Recent return flight deals from Northern Ireland to San Francisco

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

Good to know - Cheap tickets from Northern Ireland to San Francisco

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 return 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.

Travelling 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 hire

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