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Cheap flights from Northern Ireland to San Francisco from $475

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to San Francisco departing on 9/3. 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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0 bags

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Find the cheapest flights from Northern Ireland to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
6:30 am - 1:50 pm
BHD
-
SFO
15h 20m
1 stop
British Airways Logo
9:49 pm - 8:50 am
SFO
-
BHD
27h 01m
2 stops
$823British Airways
Wed, Sep 2 - Sun, Sep 6
British Airways Logo
6:30 am - 1:50 pm
BHD
-
SFO
15h 20m
1 stop
British Airways Logo
9:49 pm - 8:50 am
SFO
-
BHD
27h 01m
2 stops
$824British Airways
Wed, Sep 2 - Sun, Sep 6
British Airways Logo
6:30 am - 1:50 pm
BHD
-
SFO
15h 20m
1 stop
British Airways Logo
4:35 pm - 3:20 pm
SFO
-
BHD
14h 45m
1 stop
$825British Airways
Tue, Jul 28 - Tue, Aug 18
American Airlines Logo
11:35 am - 12:58 am
BHD
-
SFO
21h 23m
2 stops
American Airlines Logo
10:16 am - 3:20 pm
SFO
-
BHD
21h 04m
2 stops
$827American Airlines
Wed, Jul 29 - Tue, Aug 18
British Airways Logo
6:30 am - 10:28 pm
BHD
-
SFO
23h 58m
2 stops
British Airways Logo
4:35 pm - 5:30 pm
SFO
-
BHD
16h 55m
1 stop
$829British Airways
Mon, Jul 27 - Mon, Aug 17
British Airways Logo
9:40 am - 8:54 pm
BHD
-
SFO
19h 14m
2 stops
British Airways Logo
11:22 am - 3:30 pm
SFO
-
BHD
20h 08m
2 stops
$831British Airways
Mon, Jul 27 - Mon, Aug 17
Multiple Airlines Logo
6:30 am - 5:40 pm
BHD
-
SFO
19h 10m
1 stop
Multiple Airlines Logo
4:15 pm - 6:10 pm
SFO
-
BHD
17h 55m
2 stops
$843Multiple Airlines
Fri, Apr 24 - Fri, May 1
Multiple Airlines Logo
6:30 am - 11:59 pm
BHD
-
SFO
25h 29m
2 stops
Multiple Airlines Logo
1:40 pm - 6:10 pm
SFO
-
BHD
20h 30m
2 stops
$849Multiple Airlines
Fri, Apr 24 - Fri, May 1
British Airways Logo
6:30 am - 1:50 pm
BHD
-
SFO
15h 20m
1 stop
British Airways Logo
9:49 pm - 8:50 am
SFO
-
BHD
27h 01m
2 stops
$856British Airways
Wed, Sep 2 - Sun, Sep 6
British Airways Logo
10:05 am - 9:33 pm
BHD
-
SFO
19h 28m
2 stops
British Airways Logo
9:49 pm - 8:50 am
SFO
-
BHD
27h 01m
2 stops
$861British Airways
Wed, Sep 2 - Sun, Sep 6

British Airways flights from Northern Ireland to San Francisco

Our best British Airways deals on Northern Ireland to San Francisco flight tickets
British Airways
Sep 2
BHD6:30 amBelfast City
15h 20m
1 stop
SFO1:50 pmSan Francisco
Sep 6
SFO9:49 pmSan Francisco
27h 01m
2 stops
BHD8:50 amBelfast City
$823
British Airways
Sep 2
BHD6:30 amBelfast City
15h 20m
1 stop
SFO1:50 pmSan Francisco
Sep 6
SFO9:49 pmSan Francisco
27h 01m
2 stops
BHD8:50 amBelfast City
$824
British Airways
Jul 28
BHD6:30 amBelfast City
15h 20m
1 stop
SFO1:50 pmSan Francisco
Aug 18
SFO4:35 pmSan Francisco
14h 45m
1 stop
BHD3:20 pmBelfast City
$825

American Airlines flights from Northern Ireland to San Francisco

Our best American Airlines deals on Northern Ireland to San Francisco flight tickets
American Airlines
Jul 29
BHD11:35 amBelfast City
21h 23m
2 stops
SFO12:58 amSan Francisco
Aug 18
SFO10:16 amSan Francisco
21h 04m
2 stops
BHD3:20 pmBelfast City
$827
American Airlines
Jul 25
BHD7:05 amBelfast City
21h 00m
2 stops
SFO8:05 pmSan Francisco
Aug 18
SFO4:35 pmSan Francisco
14h 45m
1 stop
BHD3:20 pmBelfast City
$867
American Airlines
Jul 25
BHD7:05 amBelfast City
21h 00m
2 stops
SFO8:05 pmSan Francisco
Aug 16
SFO3:21 pmSan Francisco
19h 24m
2 stops
BHD6:45 pmBelfast City
$906

momondo Fare Finder

 
Customize your flight search to find flights from Northern Ireland 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 April 1, 2026.
Use the filters below to find and compare flights from Northern Ireland to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 9/2

6:30 am-1:50 pm

1 stop15h 20m

San Francisco

Sun 9/6

9:49 pm-8:50 am

2 stops27h 01m

$823

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 9/2

6:30 am-1:50 pm

1 stop15h 20m

San Francisco

Sun 9/6

9:49 pm-8:50 am

2 stops27h 01m

$824
Quickest round-trip

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 7/28

6:30 am-1:50 pm

1 stop15h 20m

San Francisco

Tue 8/18

4:35 pm-3:20 pm

1 stop14h 45m

$825

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 7/29

11:35 am-12:58 am

2 stops21h 23m

San Francisco

Tue 8/18

10:16 am-3:20 pm

2 stops21h 04m

$827

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 7/27

6:30 am-10:28 pm

2 stops23h 58m

San Francisco

Mon 8/17

4:35 pm-5:30 pm

1 stop16h 55m

$829

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 7/27

9:40 am-8:54 pm

2 stops19h 14m

San Francisco

Mon 8/17

11:22 am-3:30 pm

2 stops20h 08m

$831

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/24

6:30 am-5:40 pm

1 stop19h 10m

San Francisco

Fri 5/1

4:15 pm-6:10 pm

2 stops17h 55m

$843

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/24

6:30 am-11:59 pm

2 stops25h 29m

San Francisco

Fri 5/1

1:40 pm-6:10 pm

2 stops20h 30m

$849

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 9/2

6:30 am-1:50 pm

1 stop15h 20m

San Francisco

Sun 9/6

9:49 pm-8:50 am

2 stops27h 01m

$856

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 9/2

10:05 am-9:33 pm

2 stops19h 28m

San Francisco

Sun 9/6

9:49 pm-8:50 am

2 stops27h 01m

$861

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Northern Ireland 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

Can stopping save me money on Northern Ireland to San Francisco flights?

You could potentially save up to 3% on your flight if you consider stops on a Northern Ireland to San Francisco flight.

Cheap Northern Ireland to San Francisco flight deals and tips

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

Fastest flight time

15h 20m

Direct flights

None
The fastest flight from Northern Ireland to San Francisco takes 15h 20m
There are no direct flights from Northern Ireland to San Francisco. There are no popular flight routes from Northern Ireland to San Francisco.
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Frequently asked questions about flying from Northern Ireland to San Francisco

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

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

  • How many operators does momondo search for flights from Northern Ireland to San Francisco Airport?

  • How old do you have to be to fly from Northern Ireland 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 Northern Ireland to San Francisco Airport.

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

    The travel and health documents you'll need for your trip to San Francisco Airport 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 San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Northern Ireland to San Francisco

Compare and see reviews for airlines that fly from Northern Ireland to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $542Free CancellationRating
6.7
7,841 reviews
Search British Airways flights

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
Walnut Creek
Roseville
Hayward
Berkeley
Santa Clara
Big Sur
Fremont
Vallejo
Calistoga
Salinas
Daly City
Half Moon Bay
Milpitas
South San Francisco
Pacific Grove

Why use momondo?

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

Finding the right flight to San Francisco from Northern Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Francisco quick and easy, saving you time and money.

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

Yes. All flights to San Francisco from Northern Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Francisco from Northern Ireland.

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

Yes. momondo can track prices for Northern Ireland to San Francisco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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