Find flights
When to book
Airlines
FAQs

Cheap flights from Belfast to San Francisco from £418

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/3. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SFO
26 Feb — 5 Mar1
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 21 February 2025.

Round-trip from

£418

Popular in

June

Cheapest in

November

Average price

£522
British Airways
  • British Airways
  • 20/3-27/3
  • 3 total stops
  • 30h 43m total
  • Belfast to San Francisco
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£115 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 21 February 2025.

Thu 20/309:00BHD - SFO
1 stop14h 00mBritish Airways
Thu 27/310:37SFO - BHD
2 stops16h 43mBritish Airways
Deal found 20/2£418
Thu 20/309:00BHD - SFO
2 stops18h 55mMultiple Airlines
Thu 27/307:05SFO - BHD
2 stops20h 15mMultiple Airlines
Deal found 20/2£506
Thu 20/306:30BHD - SFO
1 stop13h 20mVirgin Atlantic
Thu 27/314:50SFO - BHD
1 stop23h 10mVirgin Atlantic
Deal found 20/2£551
Wed 9/411:30BHD - SFO
2 stops17h 44mAmerican Airlines
Sun 27/407:21SFO - BHD
2 stops17h 44mAmerican Airlines
Deal found 21/2£642
Thu 20/321:40BFS - SFO
2 stops30h 30mMultiple Airlines
Thu 27/318:30SFO - BFS
1 stop18h 35mMultiple Airlines
Deal found 20/2£740

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 21 February 2025.

Fly from

Belfast

Fly to

San Francisco

Route

Depart

Return

Price

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 20/3

09:00-16:00

1 stop14h 00m

San Francisco

Thu 27/3

10:37-10:20

2 stops16h 43m

£418

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 20/3

09:00-20:55

2 stops18h 55m

San Francisco

Thu 27/3

07:05-10:20

2 stops20h 15m

£506

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 20/3

06:30-12:50

1 stop13h 20m

San Francisco

Thu 27/3

14:50-21:00

1 stop23h 10m

£551

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 9/4

11:30-21:14

2 stops17h 44m

San Francisco

Sun 27/4

07:21-09:05

2 stops17h 44m

£642

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 20/3

21:40-21:10

2 stops30h 30m

San Francisco

Thu 27/3

18:30-20:05

1 stop18h 35m

£740

Flights are sorted by cheapest return flights first.

Deals found on 20/2

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 21 February 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 21 February 2025.
Virgin Atlantic
7.5
Good
654 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Entertainment

7.6

Food

6.9

Reviews

1 / 20

10.0
Excellent

K,Aug 2024

LHR - MIA

The crew leader who did the tannoys was amazing. He really made us laugh 😂. Also, a great landing in very windy conditions.

Virgin Atlantic
7.5
Good
654 reviews
Virgin Atlantic
7.5
Good
654 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Entertainment

7.6

Food

6.9

Reviews

1 / 20

10.0
Excellent

K,Aug 2024

LHR - MIA

The crew leader who did the tannoys was amazing. He really made us laugh 😂. Also, a great landing in very windy conditions.

American Airlines
7.2
Good
10,000 reviews
Virgin Atlantic
7.5
Good
654 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Entertainment

7.6

Food

6.9

Reviews

1 / 20

10.0
Excellent

K,Aug 2024

LHR - MIA

The crew leader who did the tannoys was amazing. He really made us laugh 😂. Also, a great landing in very windy conditions.

British Airways
6.6
Okay
6,762 reviews
Virgin Atlantic
7.5
Good
654 reviews
Check prices

Crew

8.2

Overall

7.5

Boarding

7.7

Comfort

7.3

Entertainment

7.6

Food

6.9

Reviews

1 / 20

10.0
Excellent

K,Aug 2024

LHR - MIA

The crew leader who did the tannoys was amazing. He really made us laugh 😂. Also, a great landing in very windy conditions.

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 £418. Additional return tickets that might be worth considering are offered by Virgin Atlantic and American Airlines, with the lowest prices starting at £551 and £642, respectively. British Airways is currently priced 34% 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£433Average£654FlexibilityNo 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.