How long is the flight from Belfast to San Francisco?

There are many flights that can get you from Belfast to San Francisco in 16h 20m. Fly via KLM, Delta, or British Airways to get the fastest option. Belfast and San Francisco are separated by a distance of 5038 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

What is the cheapest time of day to fly from BFS to SFO?

When flying from Belfast to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to San Francisco from Belfast?

Located just 11.0 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from Belfast. Booking flights from Belfast to San Francisco (SFO) should be relatively easy as there are 0 daily inbound flights from Belfast from 0 different airlines.

Can I find deals for flights from Belfast to San Francisco that include hotel bookings?

Yes. In addition to deals on Belfast to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Belfast to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to San Francisco.

Can I find deals for business class flights from Belfast to San Francisco?

Yes. Cheapflights offers flight deals from Belfast to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£499+ Cheap Flights from Belfast to San Francisco

Cheap flight deals from Belfast to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

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Cheapest flights from Belfast to San Francisco
Explore the most affordable flight options available from Belfast to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Thu 26/1106:30 -

1 stop16h 25m

Thu 3/1217:25 -

1 stop15h 30m

Deal found 29/10£668

Tue 1/1210:15 -

2 stops34h 40m

Tue 8/1215:10 -

2 stops21h 20m

Deal found 1/11£691

Tue 1/1217:15 -

1 stop26h 30m

Tue 8/1207:00 -

2 stops18h 10m

Deal found 1/11£697

Thu 26/1106:30 -

1 stop16h 25m

Thu 3/1220:35 -

1 stop15h 45m

Deal found 29/10£700

Thu 26/1117:15 -

1 stop26h 30m

Thu 3/1210:41 -

2 stops21h 54m

Deal found 29/10£703

Tue 1/1217:15 -

1 stop26h 30m

Tue 8/1213:50 -

1 stop18h 55m

Deal found 1/11£707

Tue 24/1106:35 -

1 stop16h 20m

Mon 14/1214:15 -

2 stops17h 40m

Deal found 28/10£711

Tue 24/1114:20 -

3 stops32h 25m

Mon 14/1206:30 -

3 stops27h 10m

Deal found 28/10£839

Find flight deals from Belfast to San Francisco

Round-trip from	£668
One-way from	£499

Iberia
26/11-3/12
2 total stops
31h 55m total
Belfast to San Francisco

Search Deals

29/11-31/12
3 total stops
57h 45m total
Belfast to San Francisco

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Sun 29/11

20:00-15:35

2 stops51h 35m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£603

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Tue 1/12

10:15-12:55

2 stops34h 40m

San Francisco

Tue 8/12

15:10-20:30

2 stops21h 20m

£691

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Tue 1/12

17:15-11:45

1 stop26h 30m

San Francisco

Tue 8/12

07:00-09:10

2 stops18h 10m

£697

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 26/11

17:15-11:45

1 stop26h 30m

San Francisco

Thu 3/12

10:41-16:35

2 stops21h 54m

£703

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Tue 24/11

06:35-14:55

1 stop16h 20m

San Francisco

Mon 14/12

14:15-15:55

2 stops17h 40m

£711

Fastest return journey

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 21/1

11:05-18:45

1 stop15h 40m

San Francisco

Mon 25/1

17:25-15:55

1 stop14h 30m

£717

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Sorted by cheapest first

Best time to book a flight from Belfast to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Belfast with our price prediction graph.

BF1-SFO

BHD-SFO

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

BF1-SFO

BHD-SFO

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to San Francisco from Belfast?
Located just 11.0 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from Belfast. Booking flights from Belfast to San Francisco (SFO) should be relatively easy as there are 0 daily inbound flights from Belfast from 0 different airlines.
How long is the flight from Belfast to San Francisco?
There are many flights that can get you from Belfast to San Francisco in 16h 20m. Fly via KLM, Delta, or British Airways to get the fastest option. Belfast and San Francisco are separated by a distance of 5038 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Belfast to San Francisco that include hotel bookings?
Yes. In addition to deals on Belfast to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Belfast to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to San Francisco.
Can I find deals for business class flights from Belfast to San Francisco?
Yes. Cheapflights offers flight deals from Belfast to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Why should you use Cheapflights to find cheap flight tickets from Belfast to San Francisco?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Belfast to San Francisco.

Can Cheapflights find flights from Belfast to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from Belfast shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Belfast to San Francisco become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from Belfast today and book when prices fit your budget.

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Cheap flights from Belfast to San Francisco from £499

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Belfast to San Francisco

Cheapest flights from Belfast to San FranciscoExplore the most affordable flight options available from Belfast to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Explore the most affordable flight options available from Belfast to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Best flights from Belfast to San FranciscoDiscover carefully curated flight deals from Belfast to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 November 2026.

Discover carefully curated flight deals from Belfast to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 November 2026.

Last-minute flights from Belfast to San FranciscoDiscover last-minute flight deals from Belfast to San Francisco. Data last updated 2 November 2026 and is based on user searches.

Discover last-minute flight deals from Belfast to San Francisco. Data last updated 2 November 2026 and is based on user searches.

One-way flights from Belfast to San FranciscoSearch for one-way flight options from Belfast to San Francisco. Find affordable one-way fares based on user searches. Data last updated 2 November 2026.

Search for one-way flight options from Belfast to San Francisco. Find affordable one-way fares based on user searches. Data last updated 2 November 2026.

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Use the filters below to find and compare flights from Belfast to San Francisco that are best for you.

Best time to book a flight from Belfast to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Belfast with our price prediction graph.

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Related info for your journey

What airport do you fly into for flights to San Francisco from Belfast?

How long is the flight from Belfast to San Francisco?

Can I find deals for flights from Belfast to San Francisco that include hotel bookings?

How can I find direct flights from Belfast to San Francisco?

Can I find deals for business class flights from Belfast to San Francisco?

Travelling to a place near San Francisco?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast to San Francisco

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Complete your trip

Complete your trip to San Francisco by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

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Search flights from Belfast to San Francisco by cabin class

Find flights from Belfast to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Belfast and San Francisco flights

Browse other Belfast and San Francisco flight options. Last updated on 2 November 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to San Francisco

Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 2 November 2026.

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How does Cheapflights help users find flights from Belfast to San Francisco?

Why should you use Cheapflights to find cheap flight tickets from Belfast to San Francisco?

Can Cheapflights find flights from Belfast to San Francisco with no change fees?

Can Cheapflights notify me if prices for flights from Belfast to San Francisco become cheaper?

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Travel Smart

Cheapest flights from Belfast to San Francisco
Explore the most affordable flight options available from Belfast to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 November 2026.

Best flights from Belfast to San Francisco
Discover carefully curated flight deals from Belfast to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 November 2026.

Last-minute flights from Belfast to San Francisco
Discover last-minute flight deals from Belfast to San Francisco. Data last updated 2 November 2026 and is based on user searches.

One-way flights from Belfast to San Francisco
Search for one-way flight options from Belfast to San Francisco. Find affordable one-way fares based on user searches. Data last updated 2 November 2026.