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Cheap flights from San Francisco to Belfast from $359

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Belfast departing on 9/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Francisco to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
5:25 pm - 2:35 pm
SFO
-
BHD
13h 10m
1 stop
British Airways Logo
11:25 am - 6:45 pm
BHD
-
SFO
15h 20m
1 stop
$856British Airways
Wed, Dec 2 - Wed, Dec 9
British Airways Logo
2:12 pm - 2:35 pm
SFO
-
BHD
16h 23m
2 stops
British Airways Logo
6:35 am - 2:55 pm
BHD
-
SFO
16h 20m
1 stop
$863British Airways
Wed, Dec 2 - Wed, Dec 9
British Airways Logo
5:25 pm - 2:50 pm
SFO
-
BHD
13h 25m
1 stop
British Airways Logo
9:05 am - 6:35 pm
BHD
-
SFO
17h 30m
1 stop
$873British Airways
Tue, Dec 1 - Thu, Dec 10
British Airways Logo
2:12 pm - 2:35 pm
SFO
-
BHD
16h 23m
2 stops
British Airways Logo
6:35 am - 6:20 pm
BHD
-
SFO
19h 45m
2 stops
$874British Airways
Wed, Dec 2 - Wed, Dec 9
British Airways Logo
2:12 pm - 2:50 pm
SFO
-
BHD
16h 38m
2 stops
British Airways Logo
12:25 pm - 6:45 pm
BHD
-
SFO
14h 20m
1 stop
$886British Airways
Tue, Dec 1 - Wed, Dec 9
KLM Logo
3:00 pm - 4:50 pm
SFO
-
BHD
17h 50m
2 stops
KLM Logo
9:40 am - 10:39 pm
BHD
-
SFO
20h 59m
2 stops
$905KLM
Wed, Dec 2 - Tue, Dec 8
American Airlines Logo
2:58 pm - 3:40 pm
SFO
-
BHD
16h 42m
2 stops
American Airlines Logo
6:30 am - 7:11 pm
BHD
-
SFO
20h 41m
2 stops
$908American Airlines
Wed, Sep 9 - Thu, Sep 17
Multiple Airlines Logo
6:00 am - 9:00 pm
SFO
-
BFS
31h 00m
3 stops
Multiple Airlines Logo
8:25 pm - 3:55 pm
BFS
-
SFO
27h 30m
2 stops
$924Multiple Airlines
Sun, Sep 13 - Fri, Sep 18
KLM Logo
1:50 pm - 4:50 pm
SFO
-
BHD
19h 00m
1 stop
KLM Logo
5:20 pm - 11:45 am
BHD
-
SFO
26h 25m
1 stop
$941KLM
Thu, Dec 3 - Wed, Dec 9
Multiple Airlines Logo
8:30 am - 9:00 pm
SFO
-
BFS
28h 30m
2 stops
Multiple Airlines Logo
8:25 pm - 3:55 pm
BFS
-
SFO
27h 30m
2 stops
$1,019Multiple Airlines
Sun, Sep 13 - Fri, Sep 18

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British Airways flights from San Francisco to Belfast

Our best British Airways deals on San Francisco to Belfast flight tickets
British Airways
Dec 2
SFO5:25 pmSan Francisco
13h 10m
1 stop
BHD2:35 pmBelfast City
Dec 9
BHD11:25 amBelfast City
15h 20m
1 stop
SFO6:45 pmSan Francisco
$856
British Airways
Dec 2
SFO2:12 pmSan Francisco
16h 23m
2 stops
BHD2:35 pmBelfast City
Dec 9
BHD6:35 amBelfast City
16h 20m
1 stop
SFO2:55 pmSan Francisco
$863
British Airways
Dec 1
SFO5:25 pmSan Francisco
13h 25m
1 stop
BHD2:50 pmBelfast City
Dec 10
BHD9:05 amBelfast City
17h 30m
1 stop
SFO6:35 pmSan Francisco
$873

KLM flights from San Francisco to Belfast

Our best KLM deals on San Francisco to Belfast flight tickets
KLM
Dec 2
SFO3:00 pmSan Francisco
17h 50m
2 stops
BHD4:50 pmBelfast City
Dec 8
BHD9:40 amBelfast City
20h 59m
2 stops
SFO10:39 pmSan Francisco
$905
KLM
Dec 3
SFO1:50 pmSan Francisco
19h 00m
1 stop
BHD4:50 pmBelfast City
Dec 9
BHD5:20 pmBelfast City
26h 25m
1 stop
SFO11:45 amSan Francisco
$941
KLM
Dec 3
SFO1:50 pmSan Francisco
19h 00m
1 stop
BHD4:50 pmBelfast City
Dec 10
BHD9:40 amBelfast City
20h 59m
2 stops
SFO10:39 pmSan Francisco
$951

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Belfast 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, momondo users made 832,500 searches. Data last updated July 17, 2026.
Use the filters below to find and compare flights from San Francisco to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/2

5:25 pm-2:35 pm

1 stop13h 10m

Belfast City

Wed 12/9

11:25 am-6:45 pm

1 stop15h 20m

$856

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/2

2:12 pm-2:35 pm

2 stops16h 23m

Belfast City

Wed 12/9

6:35 am-2:55 pm

1 stop16h 20m

$863

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 12/1

5:25 pm-2:50 pm

1 stop13h 25m

Belfast City

Thu 12/10

9:05 am-6:35 pm

1 stop17h 30m

$873

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/2

2:12 pm-2:35 pm

2 stops16h 23m

Belfast City

Wed 12/9

6:35 am-6:20 pm

2 stops19h 45m

$874

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 12/1

2:12 pm-2:50 pm

2 stops16h 38m

Belfast City

Wed 12/9

12:25 pm-6:45 pm

1 stop14h 20m

$886

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/2

3:00 pm-4:50 pm

2 stops17h 50m

Belfast City

Tue 12/8

9:40 am-10:39 pm

2 stops20h 59m

$905

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 9/9

2:58 pm-3:40 pm

2 stops16h 42m

Belfast City

Thu 9/17

6:30 am-7:11 pm

2 stops20h 41m

$908

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 9/13

6:00 am-9:00 pm

3 stops31h 00m

Belfast Intl

Fri 9/18

8:25 pm-3:55 pm

2 stops27h 30m

$924

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 12/3

1:50 pm-4:50 pm

1 stop19h 00m

Belfast City

Wed 12/9

5:20 pm-11:45 am

1 stop26h 25m

$941

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sun 9/13

8:30 am-9:00 pm

2 stops28h 30m

Belfast Intl

Fri 9/18

8:25 pm-3:55 pm

2 stops27h 30m

$1,019

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from San Francisco to Belfast

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 airline that flies from San Francisco to Belfast?

Virgin Atlantic, KLM, and American Airlines are the most popular carriers operating from San Francisco to Belfast

Cheap San Francisco to Belfast flight deals and tips

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

Fastest flight time

13h 25m

Direct flights

None
The fastest flight from San Francisco to Belfast takes 13h 25m
There are no direct flights from San Francisco to Belfast. There are no popular flight routes from San Francisco to Belfast.
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Frequently asked questions about flying from San Francisco to Belfast

  • How far is San Francisco to Belfast by plane?

    The straight-line distance from San Francisco to Belfast is 5028.4 mi. By plane, this route typically takes 13h 25m.

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

    Prices for flights from San Francisco Airport to Belfast refresh daily.

  • How many operators does momondo search for flights from San Francisco Airport to Belfast?

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

    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 San Francisco Airport to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The required travel and health documents for your Belfast 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 Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from San Francisco to Belfast

Compare and see reviews for airlines that fly from San Francisco to Belfast with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $586Free CancellationRating
6.7
8,121 reviews
Search British Airways flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to Belfast. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from San Francisco.

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

Of course. momondo tracks the price of San Francisco to Belfast 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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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport