Find flights
When to book
Airlines
FAQs

Cheap flights from Belfast to San Francisco from £406

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 26/6. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SFO
27 Jan — 3 Feb1
1 adult

Cheap flight deals from Belfast to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 January 2025.

Round-trip from

£416

One-way from

£406

Popular in

June

Cheapest in

March

Average price

£628
British Airways
  • British Airways
  • 14/2-23/3
  • 3 total stops
  • 37h 19m total
  • Belfast to San Francisco
Aer Lingus
  • Aer Lingus
  • 26/6
  • 2 total stops
  • 29h 15m total
  • Belfast to San Francisco
Highest demand for flights based on searches. 17% potential increase in price (£116 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).
Average for round-trip flights in January 2025

Find flight deals from Belfast to San Francisco

Cheapest flights from Belfast to San Francisco
Explore the most affordable flight options available from Belfast to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2025.

Fri 14/211:30BHD - SFO
2 stops20h 09mBritish Airways
Sun 23/318:30SFO - BHD
1 stop17h 10mBritish Airways
Deal found 21/1£416
Thu 13/206:30BHD - SFO
1 stop13h 20mMultiple Airlines
Mon 24/314:50SFO - BHD
1 stop19h 00mMultiple Airlines
Deal found 21/1£508
Tue 11/211:30BHD - SFO
1 stop35h 30mAmerican Airlines
Tue 25/321:40SFO - BHD
1 stop14h 00mAmerican Airlines
Deal found 21/1£514
Sat 15/217:20BHD - SFO
1 stop26h 30mKLM
Sun 23/314:50SFO - BHD
1 stop23h 10mKLM
Deal found 21/1£535
Sun 16/206:30BHD - SFO
1 stop13h 20mDelta
Mon 24/314:50SFO - BHD
1 stop23h 10mDelta
Deal found 21/1£538
Fri 14/208:40BHD - SFO
1 stop14h 20mIberia
Mon 24/321:40SFO - BHD
1 stop13h 55mIberia
Deal found 21/1£549
Fri 14/221:00BFS - SFO
2 stops56h 59mMultiple Airlines
Sun 23/313:45SFO - BFS
2 stops23h 50mMultiple Airlines
Deal found 21/1£554

Find flights from Belfast to San Francisco within your budget

Customise your flight search to find flights from Belfast to San Francisco 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 22 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 14/2

11:30-23:39

2 stops20h 09m

San Francisco

Sun 23/3

18:30-18:40

1 stop17h 10m

£416

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 13/2

06:30-11:50

1 stop13h 20m

San Francisco

Mon 24/3

14:50-16:50

1 stop19h 00m

£508

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 11/2

11:30-15:00

1 stop35h 30m

San Francisco

Tue 25/3

21:40-18:40

1 stop14h 00m

£514

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Sat 15/2

17:20-11:50

1 stop26h 30m

San Francisco

Sun 23/3

14:50-21:00

1 stop23h 10m

£535

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Sun 16/2

06:30-11:50

1 stop13h 20m

San Francisco

Mon 24/3

14:50-21:00

1 stop23h 10m

£538

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 14/2

08:40-15:00

1 stop14h 20m

San Francisco

Mon 24/3

21:40-18:35

1 stop13h 55m

£549

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Fri 14/2

21:00-21:59

2 stops56h 59m

San Francisco

Sun 23/3

13:45-20:35

2 stops23h 50m

£554

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 26/6

18:30-15:45

2 stops29h 15m

£406

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 26/6

09:35-17:25

1 stop15h 50m

£648

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 26/6

06:00-17:15

2 stops19h 15m

£721

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Best time to book a flight from Belfast to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Belfast 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.

Travel insights for flights from Belfast to San Francisco

Get recent, data-driven insights about flights from Belfast to San Francisco including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from Belfast to San Francisco (average of £538). Flying from Belfast to San Francisco in July is currently the most expensive (average of £803). 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.

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

Find hourly flight availability from Belfast to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 January 2025.

One of the essential ways to save on airfare from Belfast to San Francisco is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 10% on airfare.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

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.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated 22 January 2025.
8.0
Very Good
8,521 reviews

Entertainment

7.9

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very Good
8,521 reviews
8.0
Very Good
8,521 reviews

Entertainment

7.9

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.8
Good
1,341 reviews
8.0
Very Good
8,521 reviews

Entertainment

7.9

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.2
Good
10,000 reviews
8.0
Very Good
8,521 reviews

Entertainment

7.9

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.1
Good
1,082 reviews
8.0
Very Good
8,521 reviews

Entertainment

7.9

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

7.0
Good
2,646 reviews
8.0
Very Good
8,521 reviews

Entertainment

7.9

Crew

8.6

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Belfast 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 Belfast?

    Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from Belfast. Booking flights from Belfast to San Francisco (SFO) should be relatively easy as there are 0 daily inbound flights from Belfast from 1 airline.

  • What are the cheapest airlines flying from Belfast to San Francisco round-trip?

    Flying on British Airways is currently your cheapest option to San Francisco, with prices starting at £416. Additional return tickets that might be worth considering are offered by American Airlines and KLM, with the lowest prices starting at £514 and £535, respectively. British Airways is currently priced 37% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast 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.

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

    Currently, February is the cheapest month in which you can book a flight from Belfast to San Francisco (average of £538). Flying from Belfast to San Francisco in July is currently the most expensive (average of £803). 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

Travelling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Santa Cruz
San Mateo
Los Banos
Vallejo
South San Francisco
Pacific Grove
Union City

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Belfast to San Francisco

Discover the top airline that operate flights from Belfast to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 January 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£480Average£668FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco from Belfast today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Belfast to San Francisco.

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

Certainly. Search results for flights to San Francisco from Belfast 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 Belfast to San Francisco become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from Belfast today and book when prices fit your budget.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.