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Cheap flights from San Francisco Bay Area to Northern Ireland from £253

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BFS
5 May — 12 May1
1 adult

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 30 April 2025.

Round-trip from

£498

One-way from

£253

Popular in

January

Cheapest in

October

Average price

£501
British Airways
  • British Airways
  • 1/10-13/10
  • 2 total stops
  • 42h 40m total
  • San Francisco Bay Area to Northern Ireland
Search Deals
17/6
  • 17/6
  • 3 total stops
  • 47h 36m total
  • San Francisco Bay Area to Northern Ireland
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£86 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from San Francisco Bay Area to Northern Ireland

Cheapest flights from San Francisco Bay Area to Northern Ireland
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 30 April 2025.

Sat 3/510:19SFO - BHD
2 stops17h 56mAmerican Airlines
Sat 10/507:05BHD - SFO
1 stop14h 45mAmerican Airlines
Deal found 30/4£485
Wed 1/1019:20SFO - BHD
1 stop15h 20mBritish Airways
Mon 13/1018:30BHD - SFO
1 stop27h 20mBritish Airways
Deal found 29/4£498
Wed 9/719:20SFO - BHD
1 stop15h 20mMultiple Airlines
Sat 19/716:15BHD - SFO
2 stops36h 05mMultiple Airlines
Deal found 29/4£886
Wed 11/613:45SFO - BHD
1 stop23h 30mKLM
Fri 20/606:30BHD - SFO
1 stop13h 15mKLM
Deal found 28/4£1,134
Wed 1/1009:39OAK - BHD
2 stops18h 16mBritish Airways
Mon 13/1019:30BHD - OAK
2 stops36h 08mBritish Airways
Deal found 29/4£5,400
Wed 1/1011:00SJC - BHD
2 stops20h 35mBritish Airways
Mon 13/1019:30BHD - SJC
2 stops30h 34mBritish Airways
Deal found 29/4£5,400

Cheapflights Fare Finder

Customise your flight search to find flights from San Francisco Bay Area to Northern Ireland 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, Cheapflights users made 858,174 searches. Data last updated 30 April 2025.
Use the filters below to find and compare flights from San Francisco Bay Area to Northern Ireland that are best for you.

Fly from

San Francisco Bay Area

Fly to

Northern Ireland

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 1/10

19:20-18:40

1 stop15h 20m

Belfast City

Mon 13/10

18:30-13:50

1 stop27h 20m

£498

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 1/10

10:16-11:55

2 stops17h 39m

Belfast City

Mon 13/10

06:40-13:50

1 stop15h 10m

£523

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/7

19:20-18:40

1 stop15h 20m

Belfast City

Sat 19/7

16:15-20:20

2 stops36h 05m

£886

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 11/6

13:45-21:15

1 stop23h 30m

Belfast City

Fri 20/6

06:30-11:45

1 stop13h 15m

£1,134

OaklandBelfast

OAK - BHD

OAKBHD

Oakland

Wed 1/10

09:39-11:55

2 stops18h 16m

Belfast City

Mon 13/10

19:30-23:38

2 stops36h 08m

£5,400

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 1/10

11:00-15:35

2 stops20h 35m

Belfast City

Mon 13/10

19:30-18:04

2 stops30h 34m

£5,400

San JoseBelfast

SJC - BFS

SJCBFS

San Jose

Tue 17/6

10:59-18:35

3 stops47h 36m

£253

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Tue 17/6

10:59-21:10

3 stops50h 11m

£288

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Sun 15/6

06:00-14:40

2 stops24h 40m

£558

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Tue 10/6

13:00-16:55

2 stops19h 55m

£568

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 13 results
1
2

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.
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 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.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated 30 April 2025.
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,837 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from San Francisco Bay Area to Northern Ireland one-way?

    The cheapet airlines for a one-way flight from San Francisco Bay Area to Northern Ireland are British Airways (£558), KLM (£568), and Delta (£577).

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

    Yes. In addition to deals on San Francisco Bay Area to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

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

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

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

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

  • 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.

See more FAQs

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Alternative routes for San Francisco Bay Area to Northern Ireland

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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.

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