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Cheap flights from San Francisco Bay Area to Belfast from £473

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BHD
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco Bay Area to Belfast

Enter your travel dates to find the best prices.

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 5 December 2025.

Sat 6/1211:41SFO - BHD
2 stops21h 09mKLM
Fri 12/1217:20BHD - SFO
1 stop26h 30mKLM
Deal found 4/12£537
Sat 6/1220:40SFO - BHD
1 stop33h 15mBritish Airways
Fri 12/1219:35BHD - SFO
1 stop31h 10mBritish Airways
Deal found 5/12£639
Sat 6/1217:20SFO - BHD
2 stops16h 00mAer Lingus
Fri 12/1214:50BHD - SFO
2 stops32h 45mAer Lingus
Deal found 5/12£729
Sat 6/1215:30SJC - BHD
2 stops38h 25mBritish Airways
Fri 12/1208:45BHD - SJC
2 stops21h 57mBritish Airways
Deal found 3/12£925
Sat 6/1214:31OAK - BHD
2 stops18h 14mBritish Airways
Fri 12/1208:45BHD - OAK
2 stops18h 34mBritish Airways
Deal found 5/12£1,164
Tue 23/1217:20SFO - BHD
2 stops16h 00mBritish Airways
Tue 30/1219:25BHD - SFO
2 stops36h 41mBritish Airways
Deal found 2/12£1,265
Tue 23/1217:20SFO - BFS
2 stops14h 40mMultiple Airlines
Tue 30/1206:30BFS - SFO
2 stops21h 05mMultiple Airlines
Deal found 2/12£1,362
Tue 23/1213:55SFO - BHD
1 stop18h 55mKLM
Tue 30/1206:30BHD - SFO
1 stop13h 20mKLM
Deal found 2/12£1,409
Tue 23/1214:01SJC - BHD
2 stops18h 44mBritish Airways
Tue 30/1210:00BHD - SJC
2 stops20h 39mBritish Airways
Deal found 2/12£1,461
Tue 23/1217:20SFO - BHD
2 stops16h 00mMultiple Airlines
Tue 30/1214:00BHD - SFO
3 stops30h 40mMultiple Airlines
Deal found 2/12£1,485
Thu 18/1219:55SFO - BFS
1 stop33h 55mMultiple Airlines
Sun 4/120:55BFS - SFO
2 stops51h 35mMultiple Airlines
Deal found 3/12£2,197
Thu 18/1212:56SJC - BHD
2 stops21h 54mBritish Airways
Sun 4/109:10BHD - SJC
2 stops21h 29mBritish Airways
Deal found 3/12£2,533

Find 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 5 December 2025.

Round-trip from

£466

Popular in

June

Cheapest in

April

Average price

£851
British Airways
  • British Airways
  • 11/2-15/2
  • 2 total stops
  • 28h 55m total
  • San Francisco Bay Area to Belfast
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£81 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 December 2025
Search Deals

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 5 December 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 11/2

17:30-07:30

1 stop30h 00m

Belfast City

Sun 15/2

12:10-15:00

1 stop34h 50m

£473

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 18/4

23:08-11:30

2 stops28h 22m

Belfast City

Sat 25/4

19:00-13:50

1 stop26h 50m

£520

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 16/5

16:25-19:15

2 stops18h 50m

Belfast City

Mon 25/5

13:50-13:50

1 stop32h 00m

£529

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Wed 14/1

12:46-16:35

2 stops19h 49m

Belfast City

Sun 18/1

06:30-22:49

2 stops24h 19m

£627

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Thu 29/1

06:00-18:50

2 stops28h 50m

Belfast City

Mon 2/2

17:45-22:35

2 stops36h 50m

£627

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sat 17/1

11:20-19:55

3 stops24h 35m

Belfast Intl

Sat 24/1

23:10-14:35

3 stops47h 25m

£631

OaklandBelfast

OAK - BHD

OAKBHD

Oakland

Thu 5/2

11:43-18:50

2 stops23h 07m

Belfast City

Mon 9/2

06:35-19:23

2 stops20h 48m

£676

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Sat 18/4

12:23-15:05

2 stops18h 42m

Belfast City

Sat 25/4

07:05-20:35

2 stops21h 30m

£707

San JoseBelfast

SJC - BHD

SJCBHD

San Jose

Sat 16/5

12:55-15:05

2 stops18h 10m

Belfast City

Mon 25/5

09:50-20:25

2 stops18h 35m

£732

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sat 16/5

07:30-20:30

3 stops29h 00m

Belfast City

Mon 25/5

07:00-21:24

3 stops46h 24m

£840

Flights are sorted by cheapest return flights first.

Deals found on 2/12

Showing 1-10 of 18 results
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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, April is the cheapest month in which you can book a flight from San Francisco Bay Area to Belfast (average of £440). Flying from San Francisco Bay Area to Belfast in November is currently the most expensive (average of £773). 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 Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Francisco Bay Area to Belfast?

    Airlines like British Airways fly from San Francisco Bay Area to Belfast in about 30h. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 5038 mi.

  • 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 Francisco - Belfast City or San Jose - 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, April is the cheapest month in which you can book a flight from San Francisco Bay Area to Belfast (average of £440). Flying from San Francisco Bay Area to Belfast in November is currently the most expensive (average of £773). 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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