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Cheap flights from Belfast to San Francisco from $483

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to San Francisco departing on 2/16. 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 Belfast to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:45 am - 9:13 pm
BHD
-
SFO
21h 28m
2 stops
British Airways Logo
9:55 pm - 8:25 am
SFO
-
BHD
27h 30m
2 stops
$827British Airways
Fri, Mar 13 - Mon, Mar 16
British Airways Logo
6:45 am - 9:13 pm
BHD
-
SFO
21h 28m
2 stops
British Airways Logo
6:21 am - 10:40 am
SFO
-
BHD
21h 19m
2 stops
$828British Airways
Fri, Mar 13 - Mon, Mar 16
British Airways Logo
8:45 am - 11:57 pm
BHD
-
SFO
22h 12m
2 stops
British Airways Logo
6:21 am - 10:40 am
SFO
-
BHD
21h 19m
2 stops
$830British Airways
Fri, Mar 13 - Mon, Mar 16
British Airways Logo
7:35 pm - 1:50 pm
BHD
-
SFO
26h 15m
1 stop
British Airways Logo
4:35 pm - 3:20 pm
SFO
-
BHD
14h 45m
1 stop
$838British Airways
Fri, Apr 24 - Tue, Apr 28
British Airways Logo
7:35 pm - 1:50 pm
BHD
-
SFO
26h 15m
1 stop
British Airways Logo
4:15 pm - 7:40 pm
SFO
-
BHD
19h 25m
2 stops
$839British Airways
Fri, Apr 24 - Tue, Apr 28
British Airways Logo
7:35 pm - 1:50 pm
BHD
-
SFO
26h 15m
1 stop
British Airways Logo
4:35 pm - 3:20 pm
SFO
-
BHD
14h 45m
1 stop
$841British Airways
Fri, Apr 24 - Tue, Apr 28
British Airways Logo
8:10 pm - 7:04 pm
BHD
-
SFO
30h 54m
2 stops
British Airways Logo
1:28 pm - 3:20 pm
SFO
-
BHD
17h 52m
2 stops
$843British Airways
Fri, Apr 24 - Tue, Apr 28
British Airways Logo
8:10 pm - 10:49 pm
BHD
-
SFO
34h 39m
2 stops
British Airways Logo
4:15 pm - 7:40 pm
SFO
-
BHD
19h 25m
2 stops
$845British Airways
Fri, Apr 24 - Tue, Apr 28
Multiple Airlines Logo
8:20 am - 8:35 pm
BFS
-
SFO
19h 15m
2 stops
Multiple Airlines Logo
8:30 am - 3:20 pm
SFO
-
BFS
22h 50m
3 stops
$965Multiple Airlines
Wed, Mar 25 - Wed, Apr 1
Multiple Airlines Logo
7:55 am - 8:35 pm
BFS
-
SFO
19h 40m
2 stops
Multiple Airlines Logo
5:40 pm - 11:10 pm
SFO
-
BFS
21h 30m
2 stops
$1,155Multiple Airlines
Wed, Mar 25 - Wed, Apr 1

British Airways flights from Belfast to San Francisco

Our best British Airways deals on Belfast to San Francisco flight tickets
British Airways
Mar 13
BHD6:45 amBelfast City
21h 28m
2 stops
SFO9:13 pmSan Francisco
Mar 16
SFO9:55 pmSan Francisco
27h 30m
2 stops
BHD8:25 amBelfast City
$827
British Airways
Mar 13
BHD6:45 amBelfast City
21h 28m
2 stops
SFO9:13 pmSan Francisco
Mar 16
SFO6:21 amSan Francisco
21h 19m
2 stops
BHD10:40 amBelfast City
$828
British Airways
Mar 13
BHD8:45 amBelfast City
22h 12m
2 stops
SFO11:57 pmSan Francisco
Mar 16
SFO6:21 amSan Francisco
21h 19m
2 stops
BHD10:40 amBelfast City
$830

Delta flights from Belfast to San Francisco

Our best Delta deals on Belfast to San Francisco flight tickets
Delta
Feb 25
BHD6:30 amBelfast City
17h 21m
2 stops
SFO3:51 pmSan Francisco
Mar 1
SFO1:55 pmSan Francisco
18h 55m
1 stop
BHD4:50 pmBelfast City
$990
Delta
Feb 25
BHD6:30 amBelfast City
17h 21m
2 stops
SFO3:51 pmSan Francisco
Mar 1
SFO2:05 pmSan Francisco
18h 45m
2 stops
BHD4:50 pmBelfast City
$1,063

momondo Fare Finder

 
Customize your flight search to find flights from Belfast to San Francisco 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 832,500 searches. Data last updated February 11, 2026.
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

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 3/13

6:45 am-9:13 pm

2 stops21h 28m

San Francisco

Mon 3/16

9:55 pm-8:25 am

2 stops27h 30m

$827

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 3/13

6:45 am-9:13 pm

2 stops21h 28m

San Francisco

Mon 3/16

6:21 am-10:40 am

2 stops21h 19m

$828

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 3/13

8:45 am-11:57 pm

2 stops22h 12m

San Francisco

Mon 3/16

6:21 am-10:40 am

2 stops21h 19m

$830

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/24

7:35 pm-1:50 pm

1 stop26h 15m

San Francisco

Tue 4/28

4:35 pm-3:20 pm

1 stop14h 45m

$838

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/24

7:35 pm-1:50 pm

1 stop26h 15m

San Francisco

Tue 4/28

4:15 pm-7:40 pm

2 stops19h 25m

$839

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/24

7:35 pm-1:50 pm

1 stop26h 15m

San Francisco

Tue 4/28

4:35 pm-3:20 pm

1 stop14h 45m

$841

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/24

8:10 pm-7:04 pm

2 stops30h 54m

San Francisco

Tue 4/28

1:28 pm-3:20 pm

2 stops17h 52m

$843

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/24

8:10 pm-10:49 pm

2 stops34h 39m

San Francisco

Tue 4/28

4:15 pm-7:40 pm

2 stops19h 25m

$845

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 3/25

8:20 am-8:35 pm

2 stops19h 15m

San Francisco

Wed 4/1

8:30 am-3:20 pm

3 stops22h 50m

$965

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 3/25

7:55 am-8:35 pm

2 stops19h 40m

San Francisco

Wed 4/1

5:40 pm-11:10 pm

2 stops21h 30m

$1,155

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to San Francisco from

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

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

Aer Lingus, British Airways, and Air Europa are the most popular carriers operating from Belfast to San Francisco

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

14h 20m

Direct flights

None
The fastest flight from Belfast to San Francisco takes 14h 20m
There are no direct flights from Belfast to San Francisco. There are no popular flight routes from Belfast to San Francisco.
Search flight deals

  • How far is Belfast to San Francisco by plane?

    The straight-line distance from Belfast to San Francisco is 5028.1 mi. 14h 20m is a normal flight duration for this route.

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

    Prices for flights from Belfast to San Francisco Airport are updated daily.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast to San Francisco Airport.

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

    The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Roseville
Hayward
Walnut Creek
Santa Clara
Calistoga
Berkeley
Big Sur
Fremont
Daly City
Half Moon Bay
Salinas
Vallejo
Sunnyvale
Milpitas
Turlock

Why use momondo?

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

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

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

momondo does allow users to show only those flights to San Francisco from Belfast which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Belfast to San Francisco.

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

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from Belfast and alert you when they change.

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