Cheap flights from Belfast to San Francisco

from as little as £450

7 nights in San Francisco, departing George Best Belfast City Airport on 02 / Sep / 2025 with British Airways (price found 42 hours ago)

Subject to availability, prices correct of the last 24 hours
San Francisco

The Belfast / San Francisco route

All 8100 km of it

Cheap flight deals for this route

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No deals available at this time.

San Francisco flight facts

What you need to know

Alternative flights from the UK to San Francisco

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San Francisco

02 / Sep / 2025 is currently the lowest priced day of the year to fly the Belfast/San Francisco route. There are around 231 flights on any given week from the UK to San Francisco and the cheapest month to fly right now is September.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

8 °C

AVG

14 °C

HIGHEST

21 °C

Rainfall (mm)
LOWEST

0 mm

AVG

44.8 mm

HIGHEST

112 mm

Key facts about San Francisco

How to get cheap flights from Belfast to San Francisco

Tips and advice from our flight experts

Find a good deal on your flight from Belfast to San Francisco with Netflights. 231 flights go via this route every week, and we've collected them all to help you find the best flight deal. If you want to keep your options open, take a look at flights from another airport in Belfast.

Generally, George Best Belfast City Airport (BHD) is the most popular choice for flights to San Francisco. And the most popular airlines are Virgin Atlantic, Aer Lingus & British Airways. But when you fly is just as important as who you fly with. If you're flexible on dates, try searching by month to see when the cheapest flights are.

Last-minute deals can be cheaper, but it's risky. It's best to book flights to San Francisco in advance to avoid disappointment. British Airways usually have the lowest prices, so keep an eye out for their flights. Flights from Belfast to San Francisco generally take about 14 hrs 5 mins.

You can also compare the prices of hotels and hire cars for your stay in the USA. Simply use the tabs above, or add them to your booking once you’ve chosen your flight.

Other popular destinations near San Francisco

Where other people are flying to

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