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Cheap flights from San Francisco Bay Area to Belfast from £228

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BHD
13 Jul — 20 Jul1
1 adult

Cheap flight deals from San Francisco Bay Area to Belfast

Keep the following information in mind while searching for San Francisco Bay Area to Belfast flight deals. Data was last updated 8 July 2025.

Round-trip from

£467

One-way from

£228

Popular in

January

Cheapest in

October

Average price

£837
British Airways
  • British Airways
  • 15/10-21/10
  • 2 total stops
  • 36h 15m total
  • San Francisco Bay Area to Belfast
Search Deals
4/9
  • 4/9
  • 2 total stops
  • 43h 10m total
  • San Francisco Bay Area to Belfast
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£74 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from San Francisco Bay Area to Belfast

Cheapest flights from San Francisco Bay Area to Belfast
Explore the most affordable flight options available from San Francisco Bay Area to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 July 2025.

Wed 15/1019:20SFO - BHD
1 stop17h 25mBritish Airways
Tue 21/1006:35BHD - SFO
1 stop18h 50mBritish Airways
Deal found 6/7£467
Wed 15/1009:16SFO - BHD
2 stops18h 39mAmerican Airlines
Tue 21/1009:35BHD - SFO
2 stops20h 32mAmerican Airlines
Deal found 6/7£474
Mon 1/913:45SFO - BHD
1 stop23h 30mKLM
Tue 9/906:30BHD - SFO
1 stop13h 15mKLM
Deal found 7/7£521
Mon 1/910:55SFO - BHD
2 stops26h 20mDelta
Tue 9/906:30BHD - SFO
1 stop13h 15mDelta
Deal found 7/7£524
Wed 29/1013:15OAK - BHD
2 stops24h 45mDelta
Sun 2/1117:20BHD - OAK
2 stops31h 11mDelta
Deal found 6/7£554
Wed 8/1014:35SJC - BHD
2 stops22h 40mVirgin Atlantic
Sun 12/1006:30BHD - SJC
2 stops18h 30mVirgin Atlantic
Deal found 6/7£554
Wed 3/905:50SFO - BFS
2 stops44h 10mMultiple Airlines
Mon 8/912:35BFS - SFO
1 stop33h 15mMultiple Airlines
Deal found 7/7£557
Wed 8/1013:55SJC - BHD
2 stops19h 00mKLM
Sun 12/1017:25BHD - SJC
2 stops33h 51mKLM
Deal found 5/7£592
Tue 2/912:15SFO - BHD
2 stops21h 15mIberia
Thu 11/906:35BHD - SFO
2 stops25h 40mIberia
Deal found 7/7£602
Tue 2/916:30SFO - BHD
1 stop14h 50mMultiple Airlines
Wed 10/907:05BHD - SFO
2 stops19h 08mMultiple Airlines
Deal found 7/7£620
Thu 21/806:00SJC - BFS
3 stops30h 35mMultiple Airlines
Thu 28/807:30BFS - SJC
3 stops36h 14mMultiple Airlines
Deal found 7/7£634
Mon 1/916:30SFO - BHD
1 stop34h 05mFinnair
Fri 5/920:05BHD - SFO
1 stop29h 20mFinnair
Deal found 7/7£1,219

Cheapflights Fare Finder

Customise your flight search to find flights from San Francisco Bay Area to Belfast 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 8 July 2025.
Use the filters below to find and compare flights from San Francisco Bay Area to Belfast that are best for you.

Fly from

San Francisco Bay Area

Fly to

Belfast

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 15/10

19:20-20:45

1 stop17h 25m

Belfast City

Tue 21/10

06:35-17:25

1 stop18h 50m

£467

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 15/10

09:16-11:55

2 stops18h 39m

Belfast City

Tue 21/10

09:35-22:07

2 stops20h 32m

£474

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 1/9

13:45-21:15

1 stop23h 30m

Belfast City

Tue 9/9

06:30-11:45

1 stop13h 15m

£521

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 1/9

10:55-21:15

2 stops26h 20m

Belfast City

Tue 9/9

06:30-11:45

1 stop13h 15m

£524

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 8/10

14:35-21:15

2 stops22h 40m

Belfast City

Sun 12/10

06:30-17:00

2 stops18h 30m

£554

OaklandBelfast

OAK - BHD

OAKBHD

Oakland

Wed 29/10

13:15-21:00

2 stops24h 45m

Belfast City

Sun 2/11

17:20-16:31

2 stops31h 11m

£554

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Wed 3/9

05:50-10:00

2 stops44h 10m

Belfast Intl

Mon 8/9

12:35-13:50

1 stop33h 15m

£557

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 8/10

13:55-16:55

2 stops19h 00m

Belfast City

Sun 12/10

17:25-19:16

2 stops33h 51m

£592

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 2/9

12:15-17:30

2 stops21h 15m

Belfast City

Thu 11/9

06:35-00:15

2 stops25h 40m

£602

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 2/9

16:30-15:20

1 stop14h 50m

Belfast City

Wed 10/9

07:05-18:13

2 stops19h 08m

£620

Flights are sorted by cheapest return flights first.

Deals found on 6/7

Showing 1-10 of 20 results
1
2

Best time to book a flight from San Francisco Bay Area to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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 Belfast

What is the cheapest month to book a flight from San Francisco Bay Area to Belfast?

Currently, January is the cheapest month in which you can book a flight from San Francisco Bay Area to Belfast (average of £67). Flying from San Francisco Bay Area to Belfast 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.

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 8 July 2025.
Check out reviews from past customers who have flown with Delta, KLM, andFinnair from San Francisco Bay Area to Belfast to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

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
7,963 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

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
1,368 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

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.
Finnair
7.6
Good
1,311 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

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.
Air France
7.5
Good
1,467 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

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.
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

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 Belfast. 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 Belfast one-way?

    £283 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Iberia and Delta, with prices starting from £286 and £322, respectively.

  • What are the most popular routes from San Francisco Bay Area to Belfast?

    When deciding which route to take from San Francisco Bay Area to Belfast consider San Francisco - Belfast Intl, San Jose - Belfast Intl or San Francisco - Belfast City as they are the most popular.

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

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

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

    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 Belfast.

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

    Yes. Cheapflights offers flight deals from San Francisco Bay Area to Belfast 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 Belfast?

    Currently, January is the cheapest month in which you can book a flight from San Francisco Bay Area to Belfast (average of £67). Flying from San Francisco Bay Area to Belfast 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco Bay Area to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Belfast Intl flights
Los Angeles to Belfast City flights
San Francisco to Belfast Intl flights
San Francisco to Belfast City flights

Fly with Cheapflights

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How does Cheapflights help users find flights from San Francisco Bay Area to Belfast?

When you search for this flight from San Francisco Bay Area to Belfast, 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 San Francisco Bay Area to Belfast?

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 Belfast from San Francisco Bay Area.

Can Cheapflights find flights from San Francisco Bay Area to Belfast with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco Bay Area to Belfast flexibly with Cheapflights today.

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