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 $2,808 for a one-way ticket and $795 for a round-trip. Visit our flight page for the latest deals!>/a>

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

Yes Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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

We unfortunately don’t have that data for this specific 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. 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 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. Visit our flight page for the latest deals!>/a>

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. 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 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. Visit our flight page for the latest deals!>/a>

$795 CHEAP FLIGHTS from Belfast to San Francisco (BF1 - SFO)

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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.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Belfast to San Francisco

Thu, Mar 5 - Mon, Mar 9

9:05 am - 3:00 pmBHD-SFO

13h 55m1 stop

10:24 am - 2:15 pmSFO-BHD

20h 51m2 stops

$795American Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

6:35 am - 3:00 pmBHD-SFO

16h 25m1 stop

10:24 am - 10:40 amSFO-BHD

17h 16m2 stops

$800American Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

11:05 am - 10:18 pmBHD-SFO

19h 13m2 stops

9:32 am - 10:40 amSFO-BHD

18h 08m2 stops

$801American Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

9:05 am - 3:00 pmBHD-SFO

13h 55m1 stop

9:40 pm - 8:15 pmSFO-BHD

15h 35m1 stop

$802American Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

10:40 am - 10:25 pmBHD-SFO

19h 45m2 stops

1:25 pm - 2:15 pmSFO-BHD

17h 50m2 stops

$806American Airlines

Find Deal

Thu, Mar 5 - Mon, Mar 9

6:35 am - 5:47 pmBHD-SFO

19h 12m2 stops

1:25 pm - 2:15 pmSFO-BHD

17h 50m2 stops

$807American Airlines

Find Deal

Thu, Mar 26 - Mon, Mar 30

6:30 am - 12:50 pmBHD-SFO

13h 20m1 stop

1:45 pm - 4:55 pmSFO-BHD

19h 10m1 stop

$1,090Delta

Find Deal

Thu, Mar 26 - Mon, Mar 30

6:30 am - 11:15 pmBHD-SFO

23h 45m2 stops

2:20 pm - 4:55 pmSFO-BHD

18h 35m2 stops

$1,095Delta

Find Deal

Thu, Mar 26 - Mon, Mar 30

5:20 pm - 12:50 pmBHD-SFO

26h 30m1 stop

1:59 pm - 9:20 pmSFO-BHD

23h 21m2 stops

$1,096Delta

Find Deal

Thu, Mar 26 - Mon, Mar 30

5:20 pm - 12:50 pmBHD-SFO

26h 30m1 stop

1:45 pm - 4:55 pmSFO-BHD

19h 10m1 stop

$1,098Virgin Atlantic

Find Deal

Cheapest round-trip

$795

American Airlines

Thu 3/5Mon 3/9

BHD - SFO • 1 stop

Cheapest one-way

$2,808

British Airways

Mon 1/5

BHD - SFO • 1 stop

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!

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?

In the past 3 days, the cheapest round-trip tickets from Belfast to San Francisco were found on American Airlines ($795) and Delta ($1,090).

Find deals

Cheapest flight	$795

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.

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 $2,808 for a one-way ticket and $795 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.
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

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

San Francisco (SFO)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

$795 Find Cheap Flights from Belfast to San Francisco

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

Cheap Flights from Belfast to San Francisco

Recent round-trip flight deals from Belfast to San Francisco

Recent one-way flight deals from Belfast to San Francisco

Recent last minute flight deals from Belfast to San Francisco

Everything you should know

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?

In the past 3 days, the cheapest round-trip tickets from Belfast to San Francisco were found on American Airlines ($795) and Delta ($1,090).

Good to know

When to book flights from Belfast to San Francisco

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 $2,808 for a one-way ticket and $795 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.

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

Cabin class types available on flights from Belfast to San Francisco

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

Find direct flights to and from Belfast and 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