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Cheap flights from San Francisco to Belfast from £151

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Belfast departing on 20/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Francisco to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
21:45 - 08:40
SFO
-
BHD
26h 55m
2 stops
British Airways Logo
15:20 - 13:50
BHD
-
SFO
30h 30m
1 stop
£478British Airways
Sat, 8 Aug - Mon, 7 Sep
British Airways Logo
21:45 - 08:40
SFO
-
BHD
26h 55m
2 stops
British Airways Logo
19:35 - 18:34
BHD
-
SFO
54h 59m
2 stops
£484British Airways
Sat, 8 Aug - Mon, 7 Sep
British Airways Logo
19:30 - 20:35
SFO
-
BHD
17h 05m
1 stop
British Airways Logo
06:30 - 13:50
BHD
-
SFO
15h 20m
1 stop
£485British Airways
Sun, 10 May - Tue, 19 May
British Airways Logo
11:15 - 14:35
SFO
-
BHD
19h 20m
2 stops
British Airways Logo
19:30 - 13:50
BHD
-
SFO
26h 20m
1 stop
£486British Airways
Sun, 10 May - Tue, 19 May
British Airways Logo
16:35 - 15:40
SFO
-
BHD
15h 05m
1 stop
British Airways Logo
19:30 - 13:50
BHD
-
SFO
26h 20m
1 stop
£490British Airways
Wed, 5 Aug - Thu, 3 Sep
British Airways Logo
12:31 - 12:55
SFO
-
BHD
40h 24m
2 stops
British Airways Logo
06:30 - 21:57
BHD
-
SFO
23h 27m
2 stops
£493British Airways
Sun, 10 May - Tue, 19 May
British Airways Logo
21:45 - 08:40
SFO
-
BHD
26h 55m
2 stops
British Airways Logo
06:30 - 13:50
BHD
-
SFO
15h 20m
1 stop
£503British Airways
Sat, 8 Aug - Sun, 6 Sep
British Airways Logo
19:30 - 18:15
SFO
-
BHD
14h 45m
1 stop
British Airways Logo
18:30 - 13:50
BHD
-
SFO
27h 20m
1 stop
£505British Airways
Sat, 8 Aug - Mon, 7 Sep
Multiple Airlines Logo
19:35 - 23:35
SFO
-
BFS
20h 00m
2 stops
Multiple Airlines Logo
14:45 - 20:50
BFS
-
SFO
38h 05m
1 stop
£646Multiple Airlines
Sun, 10 May - Tue, 19 May
Multiple Airlines Logo
19:50 - 09:05
SFO
-
BFS
29h 15m
1 stop
Multiple Airlines Logo
21:05 - 16:20
BFS
-
SFO
27h 15m
2 stops
£686Multiple Airlines
Sat, 8 Aug - Mon, 7 Sep

British Airways flights from San Francisco to Belfast

Our best British Airways deals on San Francisco to Belfast flight tickets
British Airways
8 Aug
SFO21:45San Francisco
26h 55m
2 stops
BHD08:40Belfast City
7 Sept
BHD15:20Belfast City
30h 30m
1 stop
SFO13:50San Francisco
£478
British Airways
8 Aug
SFO21:45San Francisco
26h 55m
2 stops
BHD08:40Belfast City
7 Sept
BHD19:35Belfast City
54h 59m
2 stops
SFO18:34San Francisco
£484
British Airways
10 May
SFO19:30San Francisco
17h 05m
1 stop
BHD20:35Belfast City
19 May
BHD06:30Belfast City
15h 20m
1 stop
SFO13:50San Francisco
£485

KLM flights from San Francisco to Belfast

Our best KLM deals on San Francisco to Belfast flight tickets
KLM
7 Aug
SFO13:45San Francisco
35h 35m
1 stop
BHD09:20Belfast City
7 Sept
BHD09:50Belfast City
23h 34m
2 stops
SFO01:24San Francisco
£621
KLM
7 Aug
SFO13:05San Francisco
19h 50m
2 stops
BHD16:55Belfast City
5 Sept
BHD17:30Belfast City
32h 20m
2 stops
SFO17:50San Francisco
£843
KLM
7 Aug
SFO14:25San Francisco
18h 30m
2 stops
BHD16:55Belfast City
7 Sept
BHD09:50Belfast City
23h 34m
2 stops
SFO01:24San Francisco
£877

momondo Fare Finder

 
Customise your flight search to find flights from San Francisco to Belfast that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 9 February 2026.
Use the filters below to find and compare flights from San Francisco to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 8/8

21:45-08:40

2 stops26h 55m

Belfast City

Mon 7/9

15:20-13:50

1 stop30h 30m

£478

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 8/8

21:45-08:40

2 stops26h 55m

Belfast City

Mon 7/9

19:35-18:34

2 stops54h 59m

£484

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 10/5

19:30-20:35

1 stop17h 05m

Belfast City

Tue 19/5

06:30-13:50

1 stop15h 20m

£485

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 10/5

11:15-14:35

2 stops19h 20m

Belfast City

Tue 19/5

19:30-13:50

1 stop26h 20m

£486

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 5/8

16:35-15:40

1 stop15h 05m

Belfast City

Thu 3/9

19:30-13:50

1 stop26h 20m

£490

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 10/5

12:31-12:55

2 stops40h 24m

Belfast City

Tue 19/5

06:30-21:57

2 stops23h 27m

£493

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 8/8

21:45-08:40

2 stops26h 55m

Belfast City

Sun 6/9

06:30-13:50

1 stop15h 20m

£503

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 8/8

19:30-18:15

1 stop14h 45m

Belfast City

Mon 7/9

18:30-13:50

1 stop27h 20m

£505

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 10/5

19:35-23:35

2 stops20h 00m

Belfast Intl

Tue 19/5

14:45-20:50

1 stop38h 05m

£646

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sat 8/8

19:50-09:05

1 stop29h 15m

Belfast Intl

Mon 7/9

21:05-16:20

2 stops27h 15m

£686

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

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

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

What is the cheapest month to fly to Belfast?

The cheapest month to fly to Belfast from San Francisco is in October. Flight prices, which tend to average around £478, are often lower during this time because this is during the off-season. If you aren’t able to travel to Belfast during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £487.

Cheap San Francisco to Belfast flight deals and tips

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

Fastest flight time

14h 30m

Direct flights

None
The fastest flight from San Francisco to Belfast takes 14h 30m
There are no direct flights from San Francisco to Belfast. There are no popular flight routes from San Francisco to Belfast.
Search flight deals

  • How far is San Francisco to Belfast by plane?

    The straight-line distance from San Francisco to Belfast is 5028.1 mi. A reasonable flight in good conditions will take 14h 30m.

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

    Prices for flights from San Francisco Airport to Belfast refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The travel and health documents you'll need for your trip to Belfast may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to Belfast. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Belfast from San Francisco with this policy.

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

momondo helps you find the best flight between San Francisco and Belfast by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Belfast from San Francisco are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport