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Cheap flights from San Francisco to Belfast from $448

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 7/16. 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
0 bags

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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
4:35 pm - 2:35 pm
SFO
-
BHD
14h 00m
1 stop
British Airways Logo
6:30 am - 1:50 pm
BHD
-
SFO
15h 20m
1 stop
$871British Airways
Sun, Oct 11 - Wed, Oct 21
British Airways Logo
4:35 pm - 5:35 pm
SFO
-
BHD
17h 00m
1 stop
British Airways Logo
6:30 am - 1:50 pm
BHD
-
SFO
15h 20m
1 stop
$877British Airways
Tue, May 12 - Tue, May 19
British Airways Logo
4:15 pm - 6:55 pm
SFO
-
BHD
18h 40m
2 stops
British Airways Logo
6:30 am - 1:50 pm
BHD
-
SFO
15h 20m
1 stop
$900British Airways
Tue, May 12 - Tue, May 19
American Airlines Logo
3:52 pm - 5:35 pm
SFO
-
BHD
17h 43m
2 stops
American Airlines Logo
6:30 am - 5:58 pm
BHD
-
SFO
19h 28m
2 stops
$908American Airlines
Tue, May 12 - Tue, May 19
British Airways Logo
4:21 pm - 7:25 pm
SFO
-
BHD
19h 04m
2 stops
British Airways Logo
3:20 pm - 1:50 pm
BHD
-
SFO
30h 30m
1 stop
$921British Airways
Thu, Sep 10 - Mon, Sep 14
British Airways Logo
4:35 pm - 5:40 pm
SFO
-
BHD
17h 05m
1 stop
British Airways Logo
7:05 pm - 4:00 pm
BHD
-
SFO
28h 55m
1 stop
$932British Airways
Sun, Oct 11 - Sat, Oct 24
British Airways Logo
4:35 pm - 8:35 pm
SFO
-
BHD
20h 00m
1 stop
British Airways Logo
11:35 am - 1:50 pm
BHD
-
SFO
34h 15m
1 stop
$937British Airways
Thu, Sep 10 - Mon, Sep 14
British Airways Logo
8:00 am - 10:10 am
SFO
-
BHD
18h 10m
2 stops
British Airways Logo
6:30 am - 1:50 pm
BHD
-
SFO
15h 20m
1 stop
$939British Airways
Thu, Aug 20 - Fri, Aug 28
British Airways Logo
4:35 pm - 7:25 pm
SFO
-
BHD
18h 50m
1 stop
British Airways Logo
3:20 pm - 1:50 pm
BHD
-
SFO
30h 30m
1 stop
$940British Airways
Thu, Sep 10 - Mon, Sep 14
Multiple Airlines Logo
4:45 pm - 12:05 am
SFO
-
BFS
23h 20m
2 stops
Multiple Airlines Logo
3:25 pm - 2:40 pm
BFS
-
SFO
31h 15m
2 stops
$1,028Multiple Airlines
Mon, Apr 27 - Thu, Apr 30

British Airways flights from San Francisco to Belfast

Our best British Airways deals on San Francisco to Belfast flight tickets
British Airways
Oct 11
SFO4:35 pmSan Francisco
14h 00m
1 stop
BHD2:35 pmBelfast City
Oct 21
BHD6:30 amBelfast City
15h 20m
1 stop
SFO1:50 pmSan Francisco
$871
British Airways
May 12
SFO4:35 pmSan Francisco
17h 00m
1 stop
BHD5:35 pmBelfast City
May 19
BHD6:30 amBelfast City
15h 20m
1 stop
SFO1:50 pmSan Francisco
$877
British Airways
May 12
SFO4:15 pmSan Francisco
18h 40m
2 stops
BHD6:55 pmBelfast City
May 19
BHD6:30 amBelfast City
15h 20m
1 stop
SFO1:50 pmSan Francisco
$900

American Airlines flights from San Francisco to Belfast

Our best American Airlines deals on San Francisco to Belfast flight tickets
American Airlines
May 12
SFO3:52 pmSan Francisco
17h 43m
2 stops
BHD5:35 pmBelfast City
May 19
BHD6:30 amBelfast City
19h 28m
2 stops
SFO5:58 pmSan Francisco
$908
American Airlines
Apr 26
SFO3:52 pmSan Francisco
17h 48m
2 stops
BHD5:40 pmBelfast City
May 8
BHD11:00 amBelfast City
20h 51m
2 stops
SFO11:51 pmSan Francisco
$1,035
American Airlines
Apr 26
SFO7:30 pmSan Francisco
15h 15m
1 stop
BHD6:45 pmBelfast City
May 8
BHD9:35 amBelfast City
16h 05m
1 stop
SFO5:40 pmSan Francisco
$1,103

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 April 14, 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

Sun 10/11

4:35 pm-2:35 pm

1 stop14h 00m

Belfast City

Wed 10/21

6:30 am-1:50 pm

1 stop15h 20m

$871

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 5/12

4:35 pm-5:35 pm

1 stop17h 00m

Belfast City

Tue 5/19

6:30 am-1:50 pm

1 stop15h 20m

$877

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 5/12

4:15 pm-6:55 pm

2 stops18h 40m

Belfast City

Tue 5/19

6:30 am-1:50 pm

1 stop15h 20m

$900

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 5/12

3:52 pm-5:35 pm

2 stops17h 43m

Belfast City

Tue 5/19

6:30 am-5:58 pm

2 stops19h 28m

$908

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 9/10

4:21 pm-7:25 pm

2 stops19h 04m

Belfast City

Mon 9/14

3:20 pm-1:50 pm

1 stop30h 30m

$921

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 10/11

4:35 pm-5:40 pm

1 stop17h 05m

Belfast City

Sat 10/24

7:05 pm-4:00 pm

1 stop28h 55m

$932

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 9/10

4:35 pm-8:35 pm

1 stop20h 00m

Belfast City

Mon 9/14

11:35 am-1:50 pm

1 stop34h 15m

$937

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 8/20

8:00 am-10:10 am

2 stops18h 10m

Belfast City

Fri 8/28

6:30 am-1:50 pm

1 stop15h 20m

$939

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Thu 9/10

4:35 pm-7:25 pm

1 stop18h 50m

Belfast City

Mon 9/14

3:20 pm-1:50 pm

1 stop30h 30m

$940

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 4/27

4:45 pm-12:05 am

2 stops23h 20m

Belfast Intl

Thu 4/30

3:25 pm-2:40 pm

2 stops31h 15m

$1,028

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?

Aer Lingus and British Airways 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

16h 55m

Direct flights

None
The fastest flight from San Francisco to Belfast takes 16h 55m
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 16h 55m.

  • 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
7,883 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