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Cheap flights from Belfast Intl Airport to San Francisco from $463

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Belfast Intl Airport to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:45 pm - 3:50 pmBFS  Belfast Intl-SFO San Francisco
32h 05m2 stops Birmingham Kastrup Copenhagen
Multiple Airlines Logo
4:45 pm - 10:20 pmSFO  San Francisco-BFS Belfast Intl
21h 35m2 stops Kastrup Copenhagen Birmingham
$898Multiple Airlines
Thu, Oct 29 - Mon, Nov 2
Multiple Airlines Logo
1:35 pm - 4:30 pmBFS  Belfast Intl-SFO San Francisco
34h 55m2 stops London Gatwick Zurich
Multiple Airlines Logo
8:25 am - 10:10 pmSFO  San Francisco-BFS Belfast Intl
29h 45m3 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat London Stansted
$1,027Multiple Airlines
Fri, Nov 6 - Fri, Nov 13
Multiple Airlines Logo
7:00 am - 10:39 amBFS  Belfast Intl-SFO San Francisco
35h 39m3 stops Manchester Cancun Toronto Pearson Intl
Multiple Airlines Logo
6:02 am - 8:55 pmSFO  San Francisco-BFS Belfast Intl
31h 53m3 stops Denver Intl Reykjavik Keflavik Intl Manchester
$1,034Multiple Airlines
Tue, Oct 20 - Tue, Oct 27
Multiple Airlines Logo
5:10 pm - 2:35 pmBFS  Belfast Intl-SFO San Francisco
29h 25m2 stops Malaga Lisbon Humberto Delgado
Multiple Airlines Logo
6:02 am - 8:25 pmSFO  San Francisco-BFS Belfast Intl
31h 23m3 stops Denver Intl Reykjavik Keflavik Intl Manchester
$1,040Multiple Airlines
Tue, Oct 20 - Tue, Oct 27
Multiple Airlines Logo
2:30 pm - 5:05 pmBFS  Belfast Intl-SFO San Francisco
33h 35m3 stops London Gatwick Barcelona-El Prat Lisbon Humberto Delgado
Multiple Airlines Logo
8:00 am - 12:25 pmSFO  San Francisco-BFS Belfast Intl
20h 25m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
$1,075Multiple Airlines
Thu, Mar 25 - Sat, Apr 17
Multiple Airlines Logo
2:30 pm - 5:05 pmBFS  Belfast Intl-SFO San Francisco
33h 35m3 stops London Gatwick Barcelona-El Prat Lisbon Humberto Delgado
Multiple Airlines Logo
11:25 am - 5:30 pmSFO  San Francisco-BFS Belfast Intl
22h 05m3 stops Vancouver Intl Dublin Edinburgh Turnhouse
$1,083Multiple Airlines
Thu, Mar 25 - Sat, Apr 17
Multiple Airlines Logo
2:30 pm - 9:10 pmBFS  Belfast Intl-SFO San Francisco
37h 40m1 stop Paris Charles de Gaulle
Multiple Airlines Logo
5:20 pm - 8:05 amSFO  San Francisco-BFS Belfast Intl
30h 45m2 stops Dublin Liverpool J. Lennon
$1,085Multiple Airlines
Thu, Oct 29 - Mon, Nov 2
Multiple Airlines Logo
2:30 pm - 9:10 pmBFS  Belfast Intl-SFO San Francisco
37h 40m1 stop Paris Charles de Gaulle
Multiple Airlines Logo
4:40 pm - 7:30 amSFO  San Francisco-BFS Belfast Intl
30h 50m1 stop London Heathrow
$1,088Multiple Airlines
Thu, Oct 29 - Mon, Nov 2
Multiple Airlines Logo
7:00 am - 3:35 pmBFS  Belfast Intl-SFO San Francisco
16h 35m2 stops Manchester Dublin
Multiple Airlines Logo
5:20 pm - 10:35 pmSFO  San Francisco-BFS Belfast Intl
21h 15m2 stops Dublin Manchester
$1,101Multiple Airlines
Fri, Nov 6 - Fri, Nov 13
Multiple Airlines Logo
9:10 pm - 8:32 pmBFS  Belfast Intl-SFO San Francisco
31h 22m3 stops London Gatwick Zurich Los Angeles
Multiple Airlines Logo
6:02 am - 9:55 pmSFO  San Francisco-BFS Belfast Intl
31h 53m3 stops Denver Intl Reykjavik Keflavik Intl Glasgow Intl
$1,130Multiple Airlines
Fri, Nov 6 - Fri, Nov 13

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Thu 10/29

2:45 pm-3:50 pm

2 stops32h 05m

San Francisco

Mon 11/2

4:45 pm-10:20 pm

2 stops21h 35m

$898

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Fri 11/6

1:35 pm-4:30 pm

2 stops34h 55m

San Francisco

Fri 11/13

8:25 am-10:10 pm

3 stops29h 45m

$1,027

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Tue 10/20

7:00 am-10:39 am

3 stops35h 39m

San Francisco

Tue 10/27

6:02 am-8:55 pm

3 stops31h 53m

$1,034

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Tue 10/20

5:10 pm-2:35 pm

2 stops29h 25m

San Francisco

Tue 10/27

6:02 am-8:25 pm

3 stops31h 23m

$1,040

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Thu 3/25

2:30 pm-5:05 pm

3 stops33h 35m

San Francisco

Sat 4/17

8:00 am-12:25 pm

2 stops20h 25m

$1,075

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Thu 3/25

2:30 pm-5:05 pm

3 stops33h 35m

San Francisco

Sat 4/17

11:25 am-5:30 pm

3 stops22h 05m

$1,083

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Thu 10/29

2:30 pm-9:10 pm

1 stop37h 40m

San Francisco

Mon 11/2

5:20 pm-8:05 am

2 stops30h 45m

$1,085

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Thu 10/29

2:30 pm-9:10 pm

1 stop37h 40m

San Francisco

Mon 11/2

4:40 pm-7:30 am

1 stop30h 50m

$1,088
Quickest round-trip

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Fri 11/6

7:00 am-3:35 pm

2 stops16h 35m

San Francisco

Fri 11/13

5:20 pm-10:35 pm

2 stops21h 15m

$1,101

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Fri 11/6

9:10 pm-8:32 pm

3 stops31h 22m

San Francisco

Fri 11/13

6:02 am-9:55 pm

3 stops31h 53m

$1,130

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
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When to book flights from Belfast Intl Airport to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Belfast Intl Airport to San Francisco (BFS to SFO) flight deals and tips

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

Best Price Found

$463

Fastest flight time

15h 40m

Direct flights

None
The best one-way flight to San Francisco from Belfast Intl Airport in the past 72 hours is $463. The best round-trip flight deal from Belfast Intl Airport to San Francisco found on momondo in the last 72 hours is $898.
The fastest flight from Belfast Intl Airport to San Francisco takes 15h 40m
There are no direct flights from Belfast Intl Airport to San Francisco. There are no popular flight routes from Belfast Intl Airport to San Francisco.
Search flight deals

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

  • How far is Belfast Intl to San Francisco by plane?

    Belfast Intl and San Francisco are 5017.1 mi apart from one another. By plane, this route typically takes 15h 40m.

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

    Prices for flights from Belfast Intl Airport to San Francisco Airport were last updated today.

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

    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 Airport.

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

    The necessary travel and health documents for your San Francisco Airport 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.

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

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

    Price Alerts will notify you by email when the price for flights to San Francisco from Belfast Intl Airport decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

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

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • 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.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
South San Francisco
Berkeley
Hayward
Bodega Bay
Fremont
Santa Clara
Walnut Creek
Sunnyvale
Vallejo
Half Moon Bay
Roseville
Salinas
Sonoma
Daly City
Milpitas
Pacific Grove
Marina

Why use momondo?

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

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 for you.

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

Flights from Belfast to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to San Francisco from Belfast. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Belfast to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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