Cheap flights from San Francisco Bay Area to Northern Ireland from £476
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from San Francisco Bay Area to Northern Ireland
Keep the following information in mind while searching for San Francisco Bay Area to Northern Ireland flight deals. Data was last updated 27 August 2025.
Round-trip from | £476 |
---|---|
Popular in | January |
Cheapest in | October |
Average price | £574 |
Find flight deals from San Francisco Bay Area to Northern Ireland
Cheapest flights from San Francisco Bay Area to Northern IrelandExplore the most affordable flight options available from San Francisco Bay Area to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 August 2025.
Explore the most affordable flight options available from San Francisco Bay Area to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 August 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from San Francisco Bay Area to Northern Ireland that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 21/10
19:20-19:25
1 stop16h 05m
Belfast City
Wed 29/10
12:25-23:28
2 stops18h 03m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 21/10
10:55-13:00
2 stops18h 05m
Belfast City
Wed 29/10
06:35-19:55
2 stops20h 20m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 21/10
19:20-17:30
1 stop14h 10m
Belfast City
Wed 29/10
06:35-16:00
1 stop16h 25m
San FranciscoBelfast
SFO - BFS
SFOBFS
San Francisco
Tue 7/10
16:20-21:15
3 stops20h 55m
Belfast Intl
Tue 14/10
07:25-14:35
3 stops39h 10m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Wed 3/12
13:55-21:00
1 stop23h 05m
Belfast City
Sun 7/12
06:30-11:50
1 stop13h 20m
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Wed 3/12
13:55-21:00
1 stop23h 05m
Belfast City
Sun 7/12
17:20-11:50
1 stop26h 30m
San JoseBelfast
SJC - BHD
SJCBHD
San Jose
Wed 8/10
14:21-16:55
2 stops18h 34m
Belfast City
Sun 12/10
17:25-19:21
2 stops33h 56m
San JoseBelfast
SJC - BHD
SJCBHD
San Jose
Wed 8/10
06:00-15:35
2 stops25h 35m
Belfast City
Sun 12/10
13:00-16:54
2 stops35h 54m
San JoseBelfast
SJC - BHD
SJCBHD
San Jose
Sat 11/10
08:00-12:15
2 stops20h 15m
Belfast City
Fri 17/10
20:05-16:53
2 stops28h 48m
San FranciscoBelfast
SFO - BFS
SFOBFS
San Francisco
Thu 18/12
17:30-17:35
1 stop16h 05m
Belfast Intl
Tue 6/1
05:45-15:10
2 stops41h 25m
Best time to book a flight from San Francisco Bay Area to Northern Ireland
Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from San Francisco Bay Area with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from San Francisco Bay Area to Northern Ireland
What is the cheapest month to book a flight from San Francisco Bay Area to Northern Ireland?
Currently, January is the cheapest month in which you can book a flight from San Francisco Bay Area to Northern Ireland (average of £67). Flying from San Francisco Bay Area to Northern Ireland in July is currently the most expensive (average of £90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Related info for your journey
Find useful and relevant information for your journey from San Francisco Bay Area to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Francisco Bay Area to Northern Ireland
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How does Cheapflights help users find flights from San Francisco Bay Area to Northern Ireland?
Deals for San Francisco Bay Area to Northern Ireland flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from San Francisco Bay Area to Northern Ireland?
Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco Bay Area to Northern Ireland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from San Francisco Bay Area to Northern Ireland with no change fees?
Need flexible booking options for your flight to Northern Ireland from San Francisco Bay Area? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from San Francisco Bay Area to Northern Ireland become cheaper?
Yes, Cheapflights offers price alerts on San Francisco Bay Area to Northern Ireland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.