How long is the flight from Northern Ireland to San Francisco?

Airlines like British Airways fly from Northern Ireland to San Francisco in about 25h 40m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 5038 mi.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

What is the cheapest time of day to fly from NIR to SFO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Northern Ireland to San Francisco as you normally would.

What airport do you fly into for flights to San Francisco from Northern Ireland?

For a flight from Northern Ireland to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city.

How can I find direct flights from Northern Ireland to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to San Francisco.

Can I find deals for business class flights from Northern Ireland to San Francisco?

Yes. Cheapflights offers flight deals from Northern Ireland to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£327+ Cheap Flights from Northern Ireland to San Francisco

Cheap flight deals from Northern Ireland to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Northern Ireland to San Francisco
Explore the most affordable flight options available from Northern Ireland to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 February 2026.

Fri 24/419:35

BHD

SFO

1 stop26h 15m

British Airways

Tue 28/411:52

SFO

BHD

2 stops19h 28m

British Airways

Deal found 2/2£614

Fri 13/311:30

BHD

SFO

2 stops38h 00m

British Airways

Mon 16/321:55

SFO

BHD

2 stops29h 35m

British Airways

Deal found 4/2£622

Sun 8/314:10

BFS

SFO

3 stops32h 25m

Multiple Airlines

Mon 16/317:35

SFO

BFS

2 stops19h 35m

Multiple Airlines

Deal found 5/2£638

Wed 1/711:35

BHD

SFO

2 stops19h 01m

American Airlines

Tue 14/707:00

SFO

BHD

2 stops19h 45m

American Airlines

Deal found 5/2£656

Sun 1/307:10

BFS

SFO

3 stops39h 25m

Multiple Airlines

Mon 9/320:25

SFO

BFS

2 stops17h 45m

Multiple Airlines

Deal found 1/2£664

Sat 21/323:10

BFS

SFO

3 stops47h 25m

Multiple Airlines

Sat 28/315:40

SFO

BFS

2 stops20h 40m

Multiple Airlines

Deal found 4/2£809

Fri 20/305:45

BFS

SFO

3 stops41h 00m

Multiple Airlines

Fri 27/308:25

SFO

BFS

3 stops23h 45m

Multiple Airlines

Deal found 3/2£918

Sun 28/622:00

BFS

SFO

2 stops22h 50m

Multiple Airlines

Thu 16/713:45

SFO

BFS

2 stops21h 45m

Multiple Airlines

Deal found 5/2£929

Find flight deals from Northern Ireland to San Francisco

Round-trip from	£614
One-way from	£327
Popular in	July
Cheapest in	January

British Airways
24/4-28/4
2 total stops
42h 40m total
Northern Ireland to San Francisco

Search Deals

11/3
3 total stops
54h 45m total
Northern Ireland to San Francisco

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£78 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease (£33 potential savings vs. average return price).

Search Deals

Cheapflights Fare Finder

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

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 24/4

20:10-13:50

1 stop25h 40m

San Francisco

Tue 28/4

16:35-17:35

1 stop17h 00m

£614

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 13/3

06:45-22:41

2 stops22h 56m

San Francisco

Mon 16/3

06:00-10:40

2 stops21h 40m

£622

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sun 1/3

07:10-14:35

3 stops39h 25m

San Francisco

Mon 9/3

20:25-21:10

2 stops17h 45m

£664

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sun 8/3

14:10-17:30

2 stops34h 20m

San Francisco

Mon 16/3

20:25-21:10

2 stops17h 45m

£712

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sat 21/3

23:10-15:35

3 stops47h 25m

San Francisco

Sat 28/3

19:35-22:40

2 stops19h 05m

£823

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sun 28/6

22:10-13:35

3 stops47h 25m

San Francisco

Thu 16/7

13:45-19:30

2 stops21h 45m

£918

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Fri 20/3

05:45-15:45

3 stops41h 00m

San Francisco

Fri 27/3

08:25-15:10

3 stops23h 45m

£918

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 11/3

17:20-17:05

3 stops54h 45m

£327

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 23/6

09:15-16:15

2 stops39h 00m

£418

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 23/6

20:25-22:11

2 stops33h 46m

£463

Flights are sorted by cheapest return flights first.

Deals found on 4/2

Showing 1-10 of 12 results

Best time to book a flight from Northern Ireland to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Northern Ireland with our price prediction graph.

BHD-SFO

BFS-SFO

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to San Francisco

GBNIR-SFO

BHD-SFO

BFS-SFO

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to San Francisco from Northern Ireland?
For a flight from Northern Ireland to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.8 mi from the center of the city.
How long is the flight from Northern Ireland to San Francisco?
Airlines like British Airways fly from Northern Ireland to San Francisco in about 25h 40m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 5038 mi.
Can I find deals for flights from Northern Ireland to San Francisco that include hotel bookings?
Yes. In addition to deals on Northern Ireland to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Northern Ireland to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to San Francisco.
Can I find deals for business class flights from Northern Ireland to San Francisco?
Yes. Cheapflights offers flight deals from Northern Ireland to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 2 airlines flying from Northern Ireland to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£389	Average£548	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£463	Average£513	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

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How does Cheapflights help users find flights from Northern Ireland to San Francisco?

When you search for this flight from Northern Ireland to San Francisco, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to San Francisco?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from Northern Ireland.

Can Cheapflights find flights from Northern Ireland to San Francisco with no change fees?

Certainly. Search results for flights to San Francisco from Northern Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Northern Ireland to San Francisco become cheaper?

Yes, Cheapflights offers price alerts on Northern Ireland to San Francisco 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.

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Cheap flights from Northern Ireland to San Francisco from £327

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Northern Ireland to San Francisco

Cheapest flights from Northern Ireland to San FranciscoExplore the most affordable flight options available from Northern Ireland to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 February 2026.

Explore the most affordable flight options available from Northern Ireland to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 February 2026.

Best flights from Northern Ireland to San FranciscoDiscover carefully curated flight deals from Northern Ireland to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 February 2026.

Discover carefully curated flight deals from Northern Ireland to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 February 2026.

Last-minute flights from Northern Ireland to San FranciscoDiscover last-minute flight deals from Northern Ireland to San Francisco. Data last updated 5 February 2026 and is based on user searches.

Discover last-minute flight deals from Northern Ireland to San Francisco. Data last updated 5 February 2026 and is based on user searches.

One-way flights from Northern Ireland to San FranciscoSearch for one-way flight options from Northern Ireland to San Francisco. Find affordable one-way fares based on user searches. Data last updated 5 February 2026.

Search for one-way flight options from Northern Ireland to San Francisco. Find affordable one-way fares based on user searches. Data last updated 5 February 2026.

Find flight deals from Northern Ireland to San Francisco

Keep the following information in mind while searching for Northern Ireland to San Francisco flight deals. Data was last updated 5 February 2026.

Round-trip from

One-way from

Popular in

Cheapest in

Cheapflights Fare Finder

Use the filters below to find and compare flights from Northern Ireland to San Francisco that are best for you.

Best time to book a flight from Northern Ireland to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Northern Ireland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to San Francisco

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to San Francisco from Northern Ireland?

How long is the flight from Northern Ireland to San Francisco?

Can I find deals for flights from Northern Ireland to San Francisco that include hotel bookings?

How can I find direct flights from Northern Ireland to San Francisco?

Can I find deals for business class flights from Northern Ireland to San Francisco?

Travelling to a place near San Francisco?

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Alternative routes for Northern Ireland to San Francisco

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Complete your trip

Complete your trip to San Francisco by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

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Search flights from Northern Ireland to San Francisco by cabin class

Find flights from Northern Ireland to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Northern Ireland and San Francisco flights

Browse other Northern Ireland and San Francisco flight options. Last updated on 5 February 2026.

Popular flight searches

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Other flights to San Francisco

Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 February 2026.

Northern Ireland to San Francisco flights

Consider these flights travelling from Northern Ireland to San Francisco.

Top 2 airlines flying from Northern Ireland to San Francisco

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How does Cheapflights help users find flights from Northern Ireland to San Francisco?

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to San Francisco?

Can Cheapflights find flights from Northern Ireland to San Francisco with no change fees?

Can Cheapflights notify me if prices for flights from Northern Ireland to San Francisco become cheaper?

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Travel Smart

Cheapest flights from Northern Ireland to San Francisco
Explore the most affordable flight options available from Northern Ireland to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 February 2026.

Best flights from Northern Ireland to San Francisco
Discover carefully curated flight deals from Northern Ireland to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 February 2026.

Last-minute flights from Northern Ireland to San Francisco
Discover last-minute flight deals from Northern Ireland to San Francisco. Data last updated 5 February 2026 and is based on user searches.

One-way flights from Northern Ireland to San Francisco
Search for one-way flight options from Northern Ireland to San Francisco. Find affordable one-way fares based on user searches. Data last updated 5 February 2026.