What is the cheapest airline that flies from Belfast to San Francisco?

British Airways is the most popular carrier operating from Belfast to San Francisco

When did momondo last update prices for flights from Belfast to San Francisco Airport?

Prices for flights from Belfast to San Francisco Airport are refreshed on a daily basis.

How old do you have to be to fly from Belfast to San Francisco Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£347 Cheap Flights from Belfast to San Francisco in 2026

Find the cheapest flights from Belfast to San Francisco

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

06:30 - 13:50

BHD

SFO

15h 20m

1 stop

13:29 - 15:05

SFO

BHD

17h 36m

2 stops

£647British Airways

Fri, 4 Sep - Sat, 19 Sep

09:35 - 20:23

BHD

SFO

18h 48m

2 stops

13:29 - 15:05

SFO

BHD

17h 36m

2 stops

£651British Airways

Fri, 4 Sep - Sat, 19 Sep

06:30 - 13:50

BHD

SFO

15h 20m

1 stop

13:29 - 15:05

SFO

BHD

17h 36m

2 stops

£653British Airways

Fri, 4 Sep - Sat, 19 Sep

06:30 - 18:00

BHD

SFO

19h 30m

2 stops

09:02 - 10:05

SFO

BHD

17h 03m

2 stops

£654British Airways

Fri, 4 Sep - Sat, 19 Sep

16:20 - 14:30

BFS

SFO

30h 10m

3 stops

08:30 - 21:15

SFO

BFS

28h 45m

3 stops

£676Multiple Airlines

Wed, 16 Sep - Fri, 25 Sep

07:40 - 14:55

BHD

SFO

15h 15m

1 stop

12:39 - 16:05

SFO

BHD

19h 26m

2 stops

£676British Airways

Thu, 19 Nov - Mon, 23 Nov

07:40 - 14:55

BHD

SFO

15h 15m

1 stop

13:10 - 16:05

SFO

BHD

18h 55m

2 stops

£677British Airways

Thu, 19 Nov - Mon, 23 Nov

07:40 - 14:55

BHD

SFO

15h 15m

1 stop

12:39 - 16:05

SFO

BHD

19h 26m

2 stops

£678British Airways

Thu, 19 Nov - Mon, 23 Nov

07:30 - 14:30

BFS

SFO

39h 00m

3 stops

08:30 - 21:15

SFO

BFS

28h 45m

3 stops

£678Multiple Airlines

Wed, 16 Sep - Fri, 25 Sep

07:40 - 14:55

BHD

SFO

15h 15m

1 stop

10:33 - 14:15

SFO

BHD

19h 42m

2 stops

£678British Airways

Thu, 19 Nov - Mon, 23 Nov

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British Airways flights from Belfast to San Francisco

Our best British Airways deals on Belfast to San Francisco flight tickets

British Airways

4 Sept

BHD06:30Belfast City

15h 20m

1 stop

SFO13:50San Francisco

19 Sept

SFO13:29San Francisco

17h 36m

2 stops

BHD15:05Belfast City

£647

British Airways

4 Sept

BHD09:35Belfast City

18h 48m

2 stops

SFO20:23San Francisco

19 Sept

SFO13:29San Francisco

17h 36m

2 stops

BHD15:05Belfast City

£651

British Airways

4 Sept

BHD06:30Belfast City

15h 20m

1 stop

SFO13:50San Francisco

19 Sept

SFO13:29San Francisco

17h 36m

2 stops

BHD15:05Belfast City

£653

KLM flights from Belfast to San Francisco

Our best KLM deals on Belfast to San Francisco flight tickets

KLM

16 Aug

BHD17:30Belfast City

26h 15m

1 stop

SFO11:45San Francisco

20 Aug

SFO13:45San Francisco

19h 10m

1 stop

BHD16:55Belfast City

£2,603

KLM

16 Aug

BHD17:30Belfast City

26h 15m

1 stop

SFO11:45San Francisco

20 Aug

SFO09:30San Francisco

23h 25m

2 stops

BHD16:55Belfast City

£2,659

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

06:30-13:50

1 stop15h 20m

San Francisco

Sat 19/9

13:29-15:05

2 stops17h 36m

£647

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

09:35-20:23

2 stops18h 48m

San Francisco

Sat 19/9

13:29-15:05

2 stops17h 36m

£651

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

06:30-13:50

1 stop15h 20m

San Francisco

Sat 19/9

13:29-15:05

2 stops17h 36m

£653

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

06:30-18:00

2 stops19h 30m

San Francisco

Sat 19/9

09:02-10:05

2 stops17h 03m

£654

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 16/9

16:20-14:30

3 stops30h 10m

San Francisco

Fri 25/9

08:30-21:15

3 stops28h 45m

£676

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 19/11

07:40-14:55

1 stop15h 15m

San Francisco

Mon 23/11

12:39-16:05

2 stops19h 26m

£676

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 19/11

07:40-14:55

1 stop15h 15m

San Francisco

Mon 23/11

13:10-16:05

2 stops18h 55m

£677

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 19/11

07:40-14:55

1 stop15h 15m

San Francisco

Mon 23/11

12:39-16:05

2 stops19h 26m

£678

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 16/9

07:30-14:30

3 stops39h 00m

San Francisco

Fri 25/9

08:30-21:15

3 stops28h 45m

£678

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 19/11

07:40-14:55

1 stop15h 15m

San Francisco

Mon 23/11

10:33-14:15

2 stops19h 42m

£678

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Belfast to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to San Francisco?

The month of November is, on average, the cheapest month to fly to San Francisco from Belfast, with most prices found around £0. If you are unable to visit San Francisco during the month of November, then departing from Belfast during the month January is also very affordable. Most momondo users find prices during this month for around £0.

Cheap Belfast to San Francisco flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast to San Francisco

Fastest flight time	15h 15m
Direct flights	None

The fastest flight from Belfast to San Francisco takes 15h 15m

There are no direct flights from Belfast to San Francisco. There are no popular flight routes from Belfast to San Francisco.

Search flight deals

Frequently asked questions about flying from Belfast to San Francisco

How far is Belfast to San Francisco by plane?
San Francisco is 5028.4 mi away from Belfast. A reasonable flight in good conditions will take 15h 15m.
When did momondo last update prices for flights from Belfast to San Francisco Airport?
Prices for flights from Belfast to San Francisco Airport are refreshed on a daily basis.
How old do you have to be to fly from Belfast to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

South San Francisco

Sunnyvale

Santa Cruz

Rohnert Park

Windsor

Burlingame

Belmont

Big Sur

Capitola

Sausalito

San Bruno

Woodland

Pacific Grove

Aptos

Newark

Mill Valley

Campbell

Palo Alto

Seaside

Roseville

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to San Francisco?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to San Francisco . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Belfast to San Francisco with flexible booking policies on momondo?

All flight searches from Belfast to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Belfast to San Francisco?

momondo provides multiple filters to help you find the best flight to San Francisco from Belfast. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Belfast to San Francisco right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Belfast to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.