How long is the flight from Belfast to San Francisco?

There are many flights that can get you from Belfast to San Francisco in 15h 40m. Fly via American Airlines or British Airways to get the fastest option. The distance from Belfast to San Francisco is about 5038 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast to San Francisco as you normally would.

What airport do you fly into for flights to San Francisco from Belfast?

San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly into when you book flights from Belfast to San Francisco. 0 airlines have flights to San Francisco from Belfast on a regular basis. Booking flights from Belfast to San Francisco should not be difficult; the airport handles an average of 0 inbound flights from Belfast per day.

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 vacation 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.

$787+ Flights from Belfast to San Francisco

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Belfast to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Belfast to San Francisco

Round-trip from	$787 (American Airlines)
Popular in	July
Cheapest in	January
Average price	$714

From Belfast to San Francisco

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($103 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 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 November 5, 2025.

Sat 12/2012:45 pmBFS - SFO

3 stops33h 50mMultiple Airlines

Sat 12/274:40 pmSFO - BFS

2 stops22h 00mMultiple Airlines

Deal found 11/5

$1,130

Best flights from Belfast to San Francisco
Discover carefully curated flight deals from Belfast to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2025.

Thu 3/511:05 amBHD - SFO

1 stop15h 40mAmerican Airlines

Mon 3/910:24 amSFO - BHD

2 stops20h 51mAmerican Airlines

Deal found 11/4

$787

Thu 3/511:05 amBHD - SFO

2 stops19h 20mBritish Airways

Mon 3/91:33 pmSFO - BHD

2 stops17h 42mBritish Airways

Deal found 11/4

$796

Thu 3/266:30 amBHD - SFO

1 stop13h 20mVirgin Atlantic

Mon 3/301:45 pmSFO - BHD

1 stop19h 10mVirgin Atlantic

Deal found 11/4

$1,078

Thu 3/266:30 amBHD - SFO

1 stop13h 20mDelta

Mon 3/301:45 pmSFO - BHD

1 stop23h 35mDelta

Deal found 11/3

$1,083

Sat 12/2012:45 pmBFS - SFO

3 stops33h 50mMultiple Airlines

Sat 12/274:40 pmSFO - BFS

2 stops22h 00mMultiple Airlines

Deal found 11/5

$1,130

Last-minute flights from Belfast to San Francisco
Discover last-minute flight deals from Belfast to San Francisco. Data last updated November 5, 2025 and is based on user searches.

Sat 12/2012:45 pmBFS - SFO

3 stops33h 50mMultiple Airlines

Sat 12/274:40 pmSFO - BFS

2 stops22h 00mMultiple Airlines

Deal found 11/5

$1,130

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 3/5

11:05 am-6:45 pm

1 stop15h 40m

San Francisco

Mon 3/9

10:24 am-2:15 pm

2 stops20h 51m

$787

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 3/5

11:05 am-10:25 pm

2 stops19h 20m

San Francisco

Mon 3/9

1:33 pm-2:15 pm

2 stops17h 42m

$796

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 3/26

6:30 am-12:50 pm

1 stop13h 20m

San Francisco

Mon 3/30

1:45 pm-4:55 pm

1 stop19h 10m

$1,078

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 3/26

6:30 am-12:50 pm

1 stop13h 20m

San Francisco

Mon 3/30

1:45 pm-9:20 pm

1 stop23h 35m

$1,083

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sat 12/20

12:45 pm-2:35 pm

3 stops33h 50m

San Francisco

Sat 12/27

4:40 pm-10:40 pm

2 stops22h 00m

$1,130

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

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 round-trip 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 Belfast to San Francisco

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to San Francisco from Belfast?
San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly into when you book flights from Belfast to San Francisco. 0 airlines have flights to San Francisco from Belfast on a regular basis. Booking flights from Belfast to San Francisco should not be difficult; the airport handles an average of 0 inbound flights from Belfast per day.
How long is the flight from Belfast to San Francisco?
There are many flights that can get you from Belfast to San Francisco in 15h 40m. Fly via American Airlines or British Airways to get the fastest option. The distance from Belfast to San Francisco is about 5038 mi. This flight may include one or multiple stops.
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 vacation 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.

See more FAQs

Roseville

South San Francisco

Santa Cruz

Livermore

Turlock

Manteca

Watsonville

Sunnyvale

Santa Clara

Vallejo

Hollister

San Bruno

Foster City

Redwood City

Union City

Burlingame

Lodi

San Mateo

Vacaville

Lathrop

Browse thousands of different options on Cheapflights for your next trip

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.

$787+ Cheap flights from Belfast to San Francisco (SFO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Belfast to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Belfast to San Francisco

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Belfast to San Francisco

Cheapest flights from Belfast to San FranciscoExplore 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 November 5, 2025.

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 November 5, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast to San Francisco that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Belfast to San Francisco

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?

How long is the flight from Belfast to San Francisco?

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

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

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

Traveling to a place near San Francisco?

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.

Alternative routes for Belfast to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart

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 November 5, 2025.