What is the cheapest airline that flies from San Francisco to Belfast?

British Airways is the most popular carrier operating from San Francisco to Belfast

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?

As of January 2026, there is 1 operator available to choose from 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.

$176 Cheap Flights from San Francisco to Belfast in 2026

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Find the cheapest flights from San Francisco to Belfast

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:50 pm - 2:15 pm

SFO

BHD

16h 25m

2 stops

9:15 am - 6:45 pm

BHD

SFO

17h 30m

1 stop

$571British Airways

mié., feb. 25 - mié., mar. 4

1:50 pm - 2:15 pm

SFO

BHD

16h 25m

2 stops

12:25 pm - 11:47 pm

BHD

SFO

19h 22m

2 stops

$574British Airways

mié., feb. 25 - mié., mar. 4

5:30 pm - 4:50 pm

SFO

BHD

15h 20m

1 stop

11:25 am - 3:00 pm

BHD

SFO

35h 35m

1 stop

$575British Airways

dom., feb. 8 - mar., feb. 24

3:50 pm - 4:50 pm

SFO

BHD

17h 00m

2 stops

11:25 am - 11:10 pm

BHD

SFO

19h 45m

2 stops

$581British Airways

dom., feb. 8 - mar., feb. 24

8:40 pm - 8:15 am

SFO

BHD

27h 35m

1 stop

8:45 am - 3:00 pm

BHD

SFO

14h 15m

1 stop

$583British Airways

mar., feb. 10 - mar., feb. 17

8:40 pm - 8:15 am

SFO

BHD

27h 35m

1 stop

10:00 am - 11:10 pm

BHD

SFO

21h 10m

2 stops

$586British Airways

mar., feb. 10 - mar., feb. 17

7:30 am - 10:30 am

SFO

BHD

19h 00m

2 stops

8:45 am - 8:14 pm

BHD

SFO

19h 29m

2 stops

$589American Airlines

mar., feb. 10 - mar., feb. 17

8:40 pm - 6:40 pm

SFO

BHD

14h 00m

1 stop

9:10 am - 3:00 pm

BHD

SFO

13h 50m

1 stop

$605British Airways

dom., feb. 8 - dom., feb. 15

6:37 am - 10:20 am

SFO

BHD

19h 43m

2 stops

6:30 am - 3:00 pm

BHD

SFO

16h 30m

1 stop

$610British Airways

dom., feb. 8 - dom., feb. 15

8:25 am - 9:55 pm

SFO

BFS

29h 30m

3 stops

9:15 am - 2:35 pm

BFS

SFO

37h 20m

3 stops

$715Multiple Airlines

dom., feb. 8 - dom., feb. 15

American Airlines flights from San Francisco to Belfast

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

American Airlines

Feb 10

SFO7:30 amSan Francisco

19h 00m

2 stops

BHD10:30 amBelfast City

Feb 17

BHD8:45 amBelfast City

19h 29m

2 stops

SFO8:14 pmSan Francisco

$589

American Airlines

Apr 30

SFO5:35 pmSan Francisco

17h 10m

2 stops

BHD6:45 pmBelfast City

May 10

BHD6:30 amBelfast City

17h 20m

2 stops

SFO3:50 pmSan Francisco

$731

American Airlines

May 27

SFO10:25 amSan Francisco

17h 35m

2 stops

BHD12:00 pmBelfast City

Jun 4

BHD12:40 pmBelfast City

18h 40m

2 stops

SFO11:20 pmSan Francisco

$832

British Airways flights from San Francisco to Belfast

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

British Airways

Feb 25

SFO1:50 pmSan Francisco

16h 25m

2 stops

BHD2:15 pmBelfast City

Mar 4

BHD9:15 amBelfast City

17h 30m

1 stop

SFO6:45 pmSan Francisco

$571

British Airways

Feb 25

SFO1:50 pmSan Francisco

16h 25m

2 stops

BHD2:15 pmBelfast City

Mar 4

BHD12:25 pmBelfast City

19h 22m

2 stops

SFO11:47 pmSan Francisco

$574

British Airways

Feb 8

SFO5:30 pmSan Francisco

15h 20m

1 stop

BHD4:50 pmBelfast City

Feb 24

BHD11:25 amBelfast City

35h 35m

1 stop

SFO3:00 pmSan Francisco

$575

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

mié. 2/25

1:50 pm-2:15 pm

2 stops16h 25m

Belfast City

mié. 3/4

9:15 am-6:45 pm

1 stop17h 30m

$571

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

mié. 2/25

1:50 pm-2:15 pm

2 stops16h 25m

Belfast City

mié. 3/4

12:25 pm-11:47 pm

2 stops19h 22m

$574

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom. 2/8

5:30 pm-4:50 pm

1 stop15h 20m

Belfast City

mar. 2/24

11:25 am-3:00 pm

1 stop35h 35m

$575

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom. 2/8

3:50 pm-4:50 pm

2 stops17h 00m

Belfast City

mar. 2/24

11:25 am-11:10 pm

2 stops19h 45m

$581

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

mar. 2/10

8:40 pm-8:15 am

1 stop27h 35m

Belfast City

mar. 2/17

8:45 am-3:00 pm

1 stop14h 15m

$583

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

mar. 2/10

8:40 pm-8:15 am

1 stop27h 35m

Belfast City

mar. 2/17

10:00 am-11:10 pm

2 stops21h 10m

$586

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

mar. 2/10

7:30 am-10:30 am

2 stops19h 00m

Belfast City

mar. 2/17

8:45 am-8:14 pm

2 stops19h 29m

$589

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom. 2/8

8:40 pm-6:40 pm

1 stop14h 00m

Belfast City

dom. 2/15

9:10 am-3:00 pm

1 stop13h 50m

$605

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom. 2/8

6:37 am-10:20 am

2 stops19h 43m

Belfast City

dom. 2/15

6:30 am-3:00 pm

1 stop16h 30m

$610

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

dom. 2/8

8:25 am-9:55 pm

3 stops29h 30m

Belfast Intl

dom. 2/15

9:15 am-2:35 pm

3 stops37h 20m

$715

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Belfast?

In general, April is the cheapest month to fly from San Francisco to Belfast. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $622. If you don’t want to visit Belfast in April, then you should wait until October to fly from San Francisco, when ticket prices are also cheap, with an average price of $651.

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	14h 30m
Direct flights	None

The fastest flight from San Francisco to Belfast takes 14h 30m

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

Search flight deals

How far is San Francisco to Belfast by plane?
The straight-line distance from San Francisco to Belfast is 5028.1 mi. By plane, this route typically takes 14h 30m.
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?
As of January 2026, there is 1 operator available to choose from 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 Airways	PriceFrom $621	Free Cancellation	Rating 6.7 7,664 reviews		Search British Airways flights

Why use momondo?

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

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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.