How do I get Price Alerts for flights from Belfast to San Francisco?

Confirm your travel details to search for the latest offers for flights from Belfast to San Francisco . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Belfast to San Francisco with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

When did momondo last update prices for flights from Belfast to San Francisco Airport?

Prices for flights from Belfast to San Francisco Airport are updated daily.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast to San Francisco Airport.

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

The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$621 Cheap Flights from Belfast to San Francisco in 2025/26

1 adult

0 bags

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Find the cheapest flights from Belfast to San Francisco

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:25 am - 12:41 am

BHD

SFO

25h 16m2 stops

1:47 pm - 7:20 pm

SFO

BHD

21h 33m2 stops

$621Multiple Airlines

Thu, Feb 12 - Wed, Feb 25

7:25 am - 6:45 pm

BHD

SFO

19h 20m1 stop

1:47 pm - 7:20 pm

SFO

BHD

21h 33m2 stops

$624Multiple Airlines

Thu, Feb 12 - Wed, Feb 25

6:00 am - 5:00 pm

BFS

SFO

19h 00m1 stop

12:50 pm - 3:55 pm

SFO

BFS

19h 05m1 stop

$631Multiple Airlines

Thu, Feb 12 - Wed, Feb 25

7:25 am - 6:45 pm

BHD

SFO

19h 20m1 stop

5:30 pm - 7:20 pm

SFO

BHD

17h 50m1 stop

$635Multiple Airlines

Thu, Feb 12 - Wed, Feb 25

12:25 pm - 7:45 pm

BHD

SFO

14h 20m1 stop

6:00 am - 4:50 pm

SFO

BHD

27h 50m2 stops

$682British Airways

Wed, Mar 18 - Sun, Mar 22

6:35 am - 4:00 pm

BHD

SFO

16h 25m1 stop

10:41 am - 10:10 am

SFO

BHD

15h 29m2 stops

$683British Airways

Wed, Mar 25 - Sat, Apr 18

11:25 am - 12:48 am

BHD

SFO

20h 23m2 stops

4:35 pm - 4:50 pm

SFO

BHD

17h 15m2 stops

$687British Airways

Wed, Mar 18 - Sun, Mar 22

11:30 am - 7:45 pm

BHD

SFO

15h 15m1 stop

1:24 pm - 3:05 pm

SFO

BHD

17h 41m2 stops

$688American Airlines

Mon, Mar 23 - Sat, Apr 18

6:35 am - 12:52 am

BHD

SFO

25h 17m2 stops

10:41 am - 12:15 pm

SFO

BHD

17h 34m2 stops

$694American Airlines

Mon, Mar 23 - Sat, Apr 18

6:30 am - 12:50 pm

BHD

SFO

13h 20m1 stop

1:45 pm - 9:20 am

SFO

BHD

35h 35m1 stop

$695KLM

Tue, Mar 24 - Sat, Apr 18

British Airways flights from Belfast to San Francisco

Our best British Airways deals on Belfast to San Francisco flight tickets

British Airways

Mar 18

BHD12:25 pmBelfast City

14h 20m

1 stop

SFO7:45 pmSan Francisco

Mar 22

SFO6:00 amSan Francisco

27h 50m

2 stops

BHD4:50 pmBelfast City

$682

Find similar

British Airways

Mar 25

BHD6:35 amBelfast City

16h 25m

1 stop

SFO4:00 pmSan Francisco

Apr 18

SFO10:41 amSan Francisco

15h 29m

2 stops

BHD10:10 amBelfast City

$683

Find similar

British Airways

Mar 18

BHD11:25 amBelfast City

20h 23m

2 stops

SFO12:48 amSan Francisco

Mar 22

SFO4:35 pmSan Francisco

17h 15m

2 stops

BHD4:50 pmBelfast City

$687

Find similar

American Airlines flights from Belfast to San Francisco

Our best American Airlines deals on Belfast to San Francisco flight tickets

American Airlines

Mar 23

BHD11:30 amBelfast City

15h 15m

1 stop

SFO7:45 pmSan Francisco

Apr 18

SFO1:24 pmSan Francisco

17h 41m

2 stops

BHD3:05 pmBelfast City

$688

Find similar

American Airlines

Mar 23

BHD6:35 amBelfast City

25h 17m

2 stops

SFO12:52 amSan Francisco

Apr 18

SFO10:41 amSan Francisco

17h 34m

2 stops

BHD12:15 pmBelfast City

$694

Find similar

American Airlines

Mar 26

BHD3:05 pmBelfast City

35h 40m

1 stop

SFO7:45 pmSan Francisco

Apr 18

SFO2:28 pmSan Francisco

16h 37m

2 stops

BHD3:05 pmBelfast City

$792

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 2/12

7:25 am-12:41 am

2 stops25h 16m

San Francisco

Wed 2/25

1:47 pm-7:20 pm

2 stops21h 33m

$621

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 2/12

7:25 am-6:45 pm

1 stop19h 20m

San Francisco

Wed 2/25

1:47 pm-7:20 pm

2 stops21h 33m

$624

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Thu 2/12

6:00 am-5:00 pm

1 stop19h 00m

San Francisco

Wed 2/25

12:50 pm-3:55 pm

1 stop19h 05m

$631

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 2/12

7:25 am-6:45 pm

1 stop19h 20m

San Francisco

Wed 2/25

5:30 pm-7:20 pm

1 stop17h 50m

$635

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 3/18

12:25 pm-7:45 pm

1 stop14h 20m

San Francisco

Sun 3/22

6:00 am-4:50 pm

2 stops27h 50m

$682

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 3/25

6:35 am-4:00 pm

1 stop16h 25m

San Francisco

Sat 4/18

10:41 am-10:10 am

2 stops15h 29m

$683

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 3/18

11:25 am-12:48 am

2 stops20h 23m

San Francisco

Sun 3/22

4:35 pm-4:50 pm

2 stops17h 15m

$687

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 3/23

11:30 am-7:45 pm

1 stop15h 15m

San Francisco

Sat 4/18

1:24 pm-3:05 pm

2 stops17h 41m

$688

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Mon 3/23

6:35 am-12:52 am

2 stops25h 17m

San Francisco

Sat 4/18

10:41 am-12:15 pm

2 stops17h 34m

$694

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 3/24

6:30 am-12:50 pm

1 stop13h 20m

San Francisco

Sat 4/18

1:45 pm-9:20 am

1 stop35h 35m

$695

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Belfast to San Francisco flight deals and tips

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

Fastest flight time	25h 16m
Direct flights	None

The fastest flight from Belfast to San Francisco takes 25h 16m

There are no direct flights from Belfast to San Francisco. There are no popular flight routes from Belfast to San Francisco.

Search flight deals

How far is Belfast to San Francisco by plane?
The straight-line distance from Belfast to San Francisco is 5028.1 mi. 25h 16m is a normal flight duration for this route.
When did momondo last update prices for flights from Belfast to San Francisco Airport?
Prices for flights from Belfast to San Francisco Airport are updated daily.
How old do you have to be to fly from Belfast to San Francisco Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Belfast to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

How do I get Price Alerts for flights from Belfast to San Francisco?
Confirm your travel details to search for the latest offers for flights from Belfast to San Francisco. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Belfast to San Francisco with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Santa Cruz

Carmel-by-the-Sea

Modesto

Sonoma

Bodega Bay

Roseville

Hayward

Calistoga

Big Sur

Berkeley

Santa Clara

Walnut Creek

Fremont

Daly City

Half Moon Bay

Vallejo

Salinas

Livermore

Sunnyvale

Turlock

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Belfast to San Francisco. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to San Francisco from Belfast which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Belfast to San Francisco.

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

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