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Cheap flights from San Francisco to Belfast from £368

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 18/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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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
19:30 - 20:35
SFO
-
BHD
17h 05m
1 stop
British Airways Logo
20:35 - 13:50
BHD
-
SFO
25h 15m
1 stop
£640British Airways
Sun, 13 Sep - Wed, 23 Sep
British Airways Logo
07:40 - 10:30
SFO
-
BHD
18h 50m
2 stops
British Airways Logo
20:35 - 13:50
BHD
-
SFO
25h 15m
1 stop
£647British Airways
Sun, 13 Sep - Wed, 23 Sep
American Airlines Logo
15:45 - 17:40
SFO
-
BHD
17h 55m
2 stops
American Airlines Logo
10:05 - 20:54
BHD
-
SFO
18h 49m
2 stops
£662American Airlines
Sun, 13 Sep - Wed, 23 Sep
Multiple Airlines Logo
08:10 - 18:25
SFO
-
BFS
26h 15m
2 stops
Multiple Airlines Logo
20:15 - 15:50
BFS
-
SFO
27h 35m
2 stops
£792Multiple Airlines
Sun, 13 Sep - Wed, 23 Sep
Multiple Airlines Logo
13:35 - 18:45
SFO
-
BFS
21h 10m
2 stops
Multiple Airlines Logo
06:15 - 20:50
BFS
-
SFO
22h 35m
1 stop
£845Multiple Airlines
Sun, 13 Sep - Wed, 23 Sep
KLM Logo
13:45 - 09:20
SFO
-
BHD
35h 35m
1 stop
KLM Logo
09:50 - 20:57
BHD
-
SFO
19h 07m
2 stops
£849KLM
Wed, 22 Jul - Wed, 29 Jul
KLM Logo
07:00 - 09:20
SFO
-
BHD
18h 20m
2 stops
KLM Logo
09:50 - 20:57
BHD
-
SFO
19h 07m
2 stops
£852KLM
Wed, 22 Jul - Wed, 29 Jul
Delta Logo
13:45 - 09:20
SFO
-
BHD
35h 35m
1 stop
Delta Logo
09:50 - 10:15
BHD
-
SFO
32h 25m
2 stops
£857Delta
Thu, 30 Jul - Thu, 6 Aug
British Airways Logo
19:30 - 18:45
SFO
-
BHD
15h 15m
1 stop
British Airways Logo
09:35 - 22:59
BHD
-
SFO
21h 24m
2 stops
£863British Airways
Thu, 30 Jul - Thu, 6 Aug
British Airways Logo
15:52 - 18:45
SFO
-
BHD
18h 53m
2 stops
British Airways Logo
09:35 - 22:59
BHD
-
SFO
21h 24m
2 stops
£865British Airways
Thu, 30 Jul - Thu, 6 Aug

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KLM flights from San Francisco to Belfast

Our best KLM deals on San Francisco to Belfast flight tickets
KLM
22 Jul
SFO13:45San Francisco
35h 35m
1 stop
BHD09:20Belfast City
29 Jul
BHD09:50Belfast City
19h 07m
2 stops
SFO20:57San Francisco
£849
KLM
22 Jul
SFO07:00San Francisco
18h 20m
2 stops
BHD09:20Belfast City
29 Jul
BHD09:50Belfast City
19h 07m
2 stops
SFO20:57San Francisco
£852
KLM
22 Jun
SFO13:20San Francisco
19h 35m
2 stops
BHD16:55Belfast City
4 Aug
BHD17:30Belfast City
29h 54m
2 stops
SFO15:24San Francisco
£1,012

Aer Lingus flights from San Francisco to Belfast

Our best Aer Lingus deals on San Francisco to Belfast flight tickets
Aer Lingus
5 Jul
SFO17:40San Francisco
16h 05m
2 stops
BHD17:45Belfast City
10 Jul
BHD06:30Belfast City
17h 20m
2 stops
SFO15:50San Francisco
£1,039
Aer Lingus
5 Jul
SFO17:40San Francisco
16h 05m
2 stops
BHD17:45Belfast City
10 Jul
BHD06:30Belfast City
15h 20m
1 stop
SFO13:50San Francisco
£1,106
Aer Lingus
31 Jul
SFO17:35San Francisco
19h 20m
2 stops
BHD20:55Belfast City
8 Aug
BHD07:00Belfast City
16h 55m
2 stops
SFO15:55San Francisco
£1,114

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 11 June 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

Cheapest return flight

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 13/9

19:30-20:35

1 stop17h 05m

Belfast City

Wed 23/9

20:35-13:50

1 stop25h 15m

£640

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 13/9

07:40-10:30

2 stops18h 50m

Belfast City

Wed 23/9

20:35-13:50

1 stop25h 15m

£647

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 13/9

15:45-17:40

2 stops17h 55m

Belfast City

Wed 23/9

10:05-20:54

2 stops18h 49m

£662

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 13/9

08:10-18:25

2 stops26h 15m

Belfast Intl

Wed 23/9

20:15-15:50

2 stops27h 35m

£792

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 13/9

13:35-18:45

2 stops21h 10m

Belfast Intl

Wed 23/9

06:15-20:50

1 stop22h 35m

£845

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 22/7

13:45-09:20

1 stop35h 35m

Belfast City

Wed 29/7

09:50-20:57

2 stops19h 07m

£849

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 22/7

07:00-09:20

2 stops18h 20m

Belfast City

Wed 29/7

09:50-20:57

2 stops19h 07m

£852

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 30/7

13:45-09:20

1 stop35h 35m

Belfast City

Thu 6/8

09:50-10:15

2 stops32h 25m

£857
Fastest return journey

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 30/7

19:30-18:45

1 stop15h 15m

Belfast City

Thu 6/8

09:35-22:59

2 stops21h 24m

£863

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 30/7

15:52-18:45

2 stops18h 53m

Belfast City

Thu 6/8

09:35-22:59

2 stops21h 24m

£865

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 airline that flies from San Francisco to Belfast?

British Airways, Delta, and Air France are the most popular carriers operating from San Francisco to Belfast

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

15h 15m

Direct flights

None
The fastest flight from San Francisco to Belfast takes 15h 15m
There are no direct flights from San Francisco to Belfast. There are no popular flight routes from San Francisco to Belfast.
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Frequently asked questions about flying from San Francisco to Belfast

  • How far is San Francisco to Belfast by plane?

    The straight-line distance from San Francisco to Belfast is 5028.4 mi. A reasonable flight in good conditions will take 15h 15m.

  • 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