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Cheap flights from San Francisco to Belfast from £233

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 4/10. 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
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
16:35 - 15:30
SFO
-
BHD
14h 55m
1 stop
British Airways Logo
19:35 - 13:50
BHD
-
SFO
26h 15m
1 stop
£643British Airways
Mon, 17 Aug - Mon, 7 Sep
British Airways Logo
15:46 - 18:45
SFO
-
BHD
18h 59m
2 stops
British Airways Logo
19:35 - 13:50
BHD
-
SFO
26h 15m
1 stop
£658British Airways
Mon, 17 Aug - Mon, 7 Sep
British Airways Logo
15:46 - 20:35
SFO
-
BHD
20h 49m
2 stops
British Airways Logo
19:35 - 22:22
BHD
-
SFO
34h 47m
2 stops
£664British Airways
Mon, 17 Aug - Mon, 7 Sep
British Airways Logo
16:04 - 19:25
SFO
-
BHD
19h 21m
2 stops
British Airways Logo
19:10 - 13:50
BHD
-
SFO
26h 40m
1 stop
£684British Airways
Mon, 3 Aug - Sun, 23 Aug
British Airways Logo
19:30 - 20:35
SFO
-
BHD
17h 05m
1 stop
British Airways Logo
19:10 - 13:50
BHD
-
SFO
26h 40m
1 stop
£686British Airways
Mon, 3 Aug - Sun, 23 Aug
Multiple Airlines Logo
06:00 - 18:50
SFO
-
BFS
28h 50m
3 stops
Multiple Airlines Logo
12:45 - 13:35
BFS
-
SFO
32h 50m
3 stops
£701Multiple Airlines
Sun, 17 May - Thu, 28 May
British Airways Logo
14:35 - 10:45
SFO
-
BHD
36h 10m
2 stops
British Airways Logo
06:30 - 22:18
BHD
-
SFO
23h 48m
2 stops
£721British Airways
Mon, 3 Aug - Sun, 23 Aug
Multiple Airlines Logo
16:30 - 22:25
SFO
-
BFS
21h 55m
2 stops
Multiple Airlines Logo
06:10 - 14:30
BFS
-
SFO
40h 20m
2 stops
£733Multiple Airlines
Mon, 17 Aug - Mon, 7 Sep
Multiple Airlines Logo
06:00 - 19:15
SFO
-
BFS
29h 15m
2 stops
Multiple Airlines Logo
09:55 - 14:30
BFS
-
SFO
36h 35m
3 stops
£751Multiple Airlines
Wed, 10 Jun - Wed, 17 Jun
American Airlines Logo
12:31 - 15:20
SFO
-
BHD
18h 49m
2 stops
American Airlines Logo
13:45 - 00:09
BHD
-
SFO
18h 24m
2 stops
£783American Airlines
Tue, 12 May - Tue, 26 May

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British Airways flights from San Francisco to Belfast

Our best British Airways deals on San Francisco to Belfast flight tickets
British Airways
17 Aug
SFO16:35San Francisco
14h 55m
1 stop
BHD15:30Belfast City
7 Sept
BHD19:35Belfast City
26h 15m
1 stop
SFO13:50San Francisco
£643
British Airways
17 Aug
SFO15:46San Francisco
18h 59m
2 stops
BHD18:45Belfast City
7 Sept
BHD19:35Belfast City
26h 15m
1 stop
SFO13:50San Francisco
£658
British Airways
17 Aug
SFO15:46San Francisco
20h 49m
2 stops
BHD20:35Belfast City
7 Sept
BHD19:35Belfast City
34h 47m
2 stops
SFO22:22San Francisco
£664

American Airlines flights from San Francisco to Belfast

Our best American Airlines deals on San Francisco to Belfast flight tickets
American Airlines
6 May
SFO13:40San Francisco
18h 00m
2 stops
BHD15:40Belfast City
20 May
BHD06:30Belfast City
15h 20m
1 stop
SFO13:50San Francisco
£760
American Airlines
6 May
SFO13:28San Francisco
18h 12m
2 stops
BHD15:40Belfast City
20 May
BHD06:30Belfast City
19h 09m
2 stops
SFO17:39San Francisco
£768
American Airlines
12 May
SFO12:31San Francisco
18h 49m
2 stops
BHD15:20Belfast City
26 May
BHD13:45Belfast City
18h 24m
2 stops
SFO00:09San Francisco
£783

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 27 April 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

Mon 17/8

16:35-15:30

1 stop14h 55m

Belfast City

Mon 7/9

19:35-13:50

1 stop26h 15m

£643

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 17/8

15:46-18:45

2 stops18h 59m

Belfast City

Mon 7/9

19:35-13:50

1 stop26h 15m

£658

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 17/8

15:46-20:35

2 stops20h 49m

Belfast City

Mon 7/9

19:35-22:22

2 stops34h 47m

£664

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 3/8

16:04-19:25

2 stops19h 21m

Belfast City

Sun 23/8

19:10-13:50

1 stop26h 40m

£684

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 3/8

19:30-20:35

1 stop17h 05m

Belfast City

Sun 23/8

19:10-13:50

1 stop26h 40m

£686

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 17/5

06:00-18:50

3 stops28h 50m

Belfast Intl

Thu 28/5

12:45-13:35

3 stops32h 50m

£701

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 3/8

14:35-10:45

2 stops36h 10m

Belfast City

Sun 23/8

06:30-22:18

2 stops23h 48m

£721

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 17/8

16:30-22:25

2 stops21h 55m

Belfast Intl

Mon 7/9

06:10-14:30

2 stops40h 20m

£733

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Wed 10/6

06:00-19:15

2 stops29h 15m

Belfast Intl

Wed 17/6

09:55-14:30

3 stops36h 35m

£751
Fastest return journey

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 12/5

12:31-15:20

2 stops18h 49m

Belfast City

Tue 26/5

13:45-00:09

2 stops18h 24m

£783

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 typical price of a round-trip flight between San Francisco and Belfast?

What is the cheapest month to fly to Belfast?

The cheapest month to fly to Belfast from San Francisco is in April. Flight prices, which tend to average around £0, 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 April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of £418.

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 55m

Direct flights

None
The fastest flight from San Francisco to Belfast takes 14h 55m
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 14h 55m.

  • 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