How many operators does momondo search for flights from Belfast Intl Airport to San Francisco Bay Area?

As of May 2026, there are 2 operators available to choose from for flights from Belfast Intl Airport to San Francisco Bay Area.

How old do you have to be to fly from Belfast Intl Airport to San Francisco Bay Area?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to San Francisco Bay Area.

What documentation or ID do you need to fly to San Francisco Bay Area?

The necessary travel and health documents for your San Francisco Bay Area trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£351 Cheap Flights from Belfast Intl Airport to San Francisco Bay Area in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Belfast Intl Airport to San Francisco Bay Area

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

07:00 - 21:10

BFS

SFO

22h 10m

2 stops

16:30 - 23:20

SFO

BFS

22h 50m

2 stops

£747Multiple Airlines

Tue, 9 Jun - Tue, 16 Jun

15:00 - 20:50

BFS

SFO

37h 50m

1 stop

19:35 - 21:50

SFO

BFS

18h 15m

2 stops

£753Multiple Airlines

Thu, 3 Sep - Sun, 13 Sep

11:25 - 13:50

BFS

SFO

34h 25m

1 stop

13:00 - 16:30

SFO

BFS

19h 30m

2 stops

£770Multiple Airlines

Fri, 12 Jun - Fri, 19 Jun

07:00 - 19:10

BFS

SFO

20h 10m

1 stop

19:50 - 23:20

SFO

BFS

19h 30m

1 stop

£818Multiple Airlines

Tue, 9 Jun - Tue, 16 Jun

08:30 - 10:50

BFS

SFO

34h 20m

2 stops

13:05 - 21:00

SFO

BFS

23h 55m

2 stops

£820Multiple Airlines

Wed, 10 Jun - Wed, 17 Jun

21:25 - 15:50

BFS

SFO

26h 25m

2 stops

19:35 - 21:30

SFO

BFS

17h 55m

2 stops

£820Multiple Airlines

Thu, 3 Sep - Sun, 13 Sep

22:10 - 15:55

BFS

SFO

25h 45m

2 stops

17:35 - 21:15

SFO

BFS

19h 40m

2 stops

£823Multiple Airlines

Fri, 12 Jun - Fri, 19 Jun

06:05 - 16:35

BFS

SFO

42h 30m

3 stops

08:05 - 22:20

SFO

BFS

30h 15m

3 stops

£830Multiple Airlines

Wed, 10 Jun - Wed, 17 Jun

08:15 - 10:50

BFS

SFO

34h 35m

2 stops

13:05 - 20:15

SFO

BFS

23h 10m

2 stops

£847Multiple Airlines

Wed, 10 Jun - Wed, 17 Jun

09:15 - 10:50

BFS

SFO

33h 35m

2 stops

12:55 - 23:00

SFO

BFS

26h 05m

2 stops

£848Multiple Airlines

Thu, 11 Jun - Thu, 18 Jun

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 9/6

07:00-21:10

2 stops22h 10m

San Francisco

Tue 16/6

16:30-23:20

2 stops22h 50m

£747

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 3/9

15:00-20:50

1 stop37h 50m

San Francisco

Sun 13/9

19:35-21:50

2 stops18h 15m

£753

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Fri 12/6

11:25-13:50

1 stop34h 25m

San Francisco

Fri 19/6

13:00-16:30

2 stops19h 30m

£770

Fastest return journey

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 9/6

07:00-19:10

1 stop20h 10m

San Francisco

Tue 16/6

19:50-23:20

1 stop19h 30m

£818

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 10/6

08:30-10:50

2 stops34h 20m

San Francisco

Wed 17/6

13:05-21:00

2 stops23h 55m

£820

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 3/9

21:25-15:50

2 stops26h 25m

San Francisco

Sun 13/9

19:35-21:30

2 stops17h 55m

£820

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Fri 12/6

22:10-15:55

2 stops25h 45m

San Francisco

Fri 19/6

17:35-21:15

2 stops19h 40m

£823

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 10/6

06:05-16:35

3 stops42h 30m

San Francisco

Wed 17/6

08:05-22:20

3 stops30h 15m

£830

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 10/6

08:15-10:50

2 stops34h 35m

San Francisco

Wed 17/6

13:05-20:15

2 stops23h 10m

£847

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 11/6

09:15-10:50

2 stops33h 35m

San Francisco

Thu 18/6

12:55-23:00

2 stops26h 05m

£848

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Belfast Intl Airport to San Francisco Bay Area

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco Bay Area?

The cheapest month to fly to San Francisco Bay Area from Belfast Intl Airport is in November. Flight prices, which tend to average around £0, are often lower during this time because this is during the off-season. If you’re not able to fly to San Francisco Bay Area in November, then January is your next best option. Flight prices from Belfast Intl Airport to San Francisco Bay Area during January average around £0.

Can stopping save me money on Belfast Intl Airport to San Francisco Bay Area flights?

No. A direct flight is the cheapest option for a flight between Belfast Intl Airport to San Francisco Bay Area.

Cheap Belfast Intl Airport to San Francisco Bay Area flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to San Francisco Bay Area

Fastest flight time	20h 10m
Direct flights	None

The fastest flight from Belfast Intl Airport to San Francisco Bay Area takes 20h 10m

There are no direct flights from Belfast Intl Airport to San Francisco Bay Area. There are no popular flight routes from Belfast Intl Airport to San Francisco Bay Area.

Search flight deals

Frequently asked questions about flying from Belfast Intl Airport to San Francisco Bay Area

When did momondo last update prices for flights from Belfast Intl Airport to San Francisco Bay Area?
Prices for flights from Belfast Intl Airport to San Francisco Bay Area are updated daily.
How many operators does momondo search for flights from Belfast Intl Airport to San Francisco Bay Area?
As of May 2026, there are 2 operators available to choose from for flights from Belfast Intl Airport to San Francisco Bay Area.
How old do you have to be to fly from Belfast Intl Airport to San Francisco Bay Area?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to San Francisco Bay Area.
What documentation or ID do you need to fly to San Francisco Bay Area?
The necessary travel and health documents for your San Francisco Bay Area trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Belfast Intl Airport to San Francisco Bay Area?
Based on momondo bookings for flights between Belfast Intl Airport and San Francisco Bay Area, the leading plane model is Airbus A320-100/200, making up 31.54% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 27.76%, Airbus A319 with 22.41%, and ATR 72-201 / 202 with 11.40%.

Best airlines flying from Belfast Intl Airport to San Francisco Bay Area

Compare and see reviews for airlines that fly from Belfast Intl Airport to San Francisco Bay Area with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £429	Free Cancellation	Rating 6.7 7,981 reviews		Search British Airways flights
American Airlines	PriceFrom £475	Free Cancellation	Rating 7.1 11,662 reviews		Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to San Francisco Bay Area?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Belfast to San Francisco Bay Area for you.

Can I find flights from Belfast to San Francisco Bay Area with flexible booking policies on momondo?

All flight searches from Belfast to San Francisco Bay Area on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Belfast to San Francisco Bay Area?

Once all potential Belfast to San Francisco Bay Area flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Belfast to San Francisco Bay Area right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Francisco Bay Area, momondo offers a useful price alert feature which will track prices for flights to San Francisco Bay Area from Belfast and alert you when they change.