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

KLM, British Airways, and Aer Lingus are the most popular carriers operating from San Francisco to Northern Ireland

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

Prices for flights from San Francisco Airport to Northern Ireland refresh daily.

How many operators does momondo search for flights from San Francisco Airport to Northern Ireland?

As of March 2026, there is 1 operator available to choose from for flights from San Francisco Airport to Northern Ireland.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$313 Cheap Flights from San Francisco to Northern Ireland in 2026

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Find the cheapest flights from San Francisco to Northern Ireland

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:35 pm - 5:40 pm

SFO

BHD

17h 05m

1 stop

6:30 pm - 1:50 pm

BHD

SFO

27h 20m

1 stop

$819British Airways

日, 4月 26 - 月, 5月 11

4:35 pm - 5:40 pm

SFO

BHD

17h 05m

1 stop

4:05 pm - 1:50 pm

BHD

SFO

29h 45m

1 stop

$822British Airways

日, 9月 6 - 水, 9月 9

7:30 pm - 7:40 pm

SFO

BHD

16h 10m

1 stop

6:20 pm - 1:50 pm

BHD

SFO

27h 30m

1 stop

$828British Airways

火, 8月 4 - 火, 8月 18

11:24 am - 3:20 pm

SFO

BHD

19h 56m

2 stops

8:25 pm - 1:50 pm

BHD

SFO

25h 25m

1 stop

$841British Airways

火, 8月 4 - 火, 8月 18

3:37 pm - 5:35 pm

SFO

BHD

17h 58m

2 stops

1:45 pm - 11:06 pm

BHD

SFO

17h 21m

2 stops

$859American Airlines

火, 8月 4 - 火, 8月 18

12:55 pm - 11:20 pm

SFO

BFS

26h 25m

2 stops

8:15 pm - 4:40 pm

BFS

SFO

28h 25m

2 stops

$867Multiple Airlines

火, 5月 5 - 火, 5月 12

7:30 pm - 7:25 pm

SFO

BHD

15h 55m

1 stop

11:35 am - 1:50 pm

BHD

SFO

34h 15m

1 stop

$878British Airways

木, 9月 10 - 月, 9月 14

4:36 pm - 8:35 pm

SFO

BHD

19h 59m

2 stops

7:35 pm - 1:50 pm

BHD

SFO

26h 15m

1 stop

$891British Airways

木, 9月 10 - 月, 9月 14

1:45 pm - 4:55 pm

SFO

BHD

19h 10m

1 stop

5:30 pm - 7:20 pm

BHD

SFO

33h 50m

2 stops

$895Virgin Atlantic

日, 4月 26 - 月, 5月 11

11:15 pm - 9:55 am

SFO

BFS

26h 40m

1 stop

2:40 pm - 9:55 pm

BFS

SFO

39h 15m

2 stops

$982Multiple Airlines

日, 4月 26 - 月, 5月 11

American Airlines flights from San Francisco to Northern Ireland

Our best American Airlines deals on San Francisco to Northern Ireland flight tickets

American Airlines

Aug 4

SFO3:37 pmSan Francisco

17h 58m

2 stops

BHD5:35 pmBelfast City

Aug 18

BHD1:45 pmBelfast City

17h 21m

2 stops

SFO11:06 pmSan Francisco

$859

American Airlines

Sep 5

SFO10:45 amSan Francisco

17h 40m

2 stops

BHD12:25 pmBelfast City

Sep 19

BHD7:05 amBelfast City

20h 11m

2 stops

SFO7:16 pmSan Francisco

$934

American Airlines

Jun 2

SFO1:35 pmSan Francisco

17h 45m

2 stops

BHD3:20 pmBelfast City

Jun 16

BHD1:45 pmBelfast City

18h 23m

2 stops

SFO12:08 amSan Francisco

$1,085

Delta flights from San Francisco to Northern Ireland

Our best Delta deals on San Francisco to Northern Ireland flight tickets

Delta

Jun 22

SFO9:20 amSan Francisco

23h 35m

2 stops

BHD4:55 pmBelfast City

Jul 8

BHD5:30 pmBelfast City

26h 15m

1 stop

SFO11:45 amSan Francisco

$1,207

Delta

Jun 22

SFO1:45 pmSan Francisco

19h 10m

1 stop

BHD4:55 pmBelfast City

Jul 6

BHD5:30 pmBelfast City

26h 15m

1 stop

SFO11:45 amSan Francisco

$1,233

Delta

Jun 23

SFO9:20 amSan Francisco

23h 35m

2 stops

BHD4:55 pmBelfast City

Jul 6

BHD5:30 pmBelfast City

26h 15m

1 stop

SFO11:45 amSan Francisco

$1,237

momondo Fare Finder

Use the filters below to find and compare flights from San Francisco to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

日 4/26

4:35 pm-5:40 pm

1 stop17h 05m

Belfast City

月 5/11

6:30 pm-1:50 pm

1 stop27h 20m

$819

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

日 9/6

4:35 pm-5:40 pm

1 stop17h 05m

Belfast City

水 9/9

4:05 pm-1:50 pm

1 stop29h 45m

$822

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

火 8/4

7:30 pm-7:40 pm

1 stop16h 10m

Belfast City

火 8/18

6:20 pm-1:50 pm

1 stop27h 30m

$828

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

火 8/4

11:24 am-3:20 pm

2 stops19h 56m

Belfast City

火 8/18

8:25 pm-1:50 pm

1 stop25h 25m

$841

Quickest round-trip

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

火 8/4

3:37 pm-5:35 pm

2 stops17h 58m

Belfast City

火 8/18

1:45 pm-11:06 pm

2 stops17h 21m

$859

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

火 5/5

12:55 pm-11:20 pm

2 stops26h 25m

Belfast Intl

火 5/12

8:15 pm-4:40 pm

2 stops28h 25m

$867

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

木 9/10

7:30 pm-7:25 pm

1 stop15h 55m

Belfast City

月 9/14

11:35 am-1:50 pm

1 stop34h 15m

$878

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

木 9/10

4:36 pm-8:35 pm

2 stops19h 59m

Belfast City

月 9/14

7:35 pm-1:50 pm

1 stop26h 15m

$891

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

日 4/26

1:45 pm-4:55 pm

1 stop19h 10m

Belfast City

月 5/11

5:30 pm-7:20 pm

2 stops33h 50m

$895

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

日 4/26

11:15 pm-9:55 am

1 stop26h 40m

Belfast Intl

月 5/11

2:40 pm-9:55 pm

2 stops39h 15m

$982

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Francisco to Northern Ireland

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 Northern Ireland?

The cheapest month to fly to Northern Ireland from San Francisco is in April. Flight prices, which tend to average around $587, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Northern Ireland from San Francisco during February instead. Flights to Northern Ireland in February, while not as cheap as those in April, still average around $614.

Can stopping save me money on San Francisco to Northern Ireland flights?

You could potentially save up to 48% on your flight if you consider stops on a San Francisco to Northern Ireland flight.

Cheap San Francisco to Northern Ireland flight deals and tips

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

Fastest flight time	14h 00m
Direct flights	None

The fastest flight from San Francisco to Northern Ireland takes 14h 00m

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

Search flight deals

When did momondo last update prices for flights from San Francisco Airport to Northern Ireland?
Prices for flights from San Francisco Airport to Northern Ireland refresh daily.
How many operators does momondo search for flights from San Francisco Airport to Northern Ireland?
As of March 2026, there is 1 operator available to choose from for flights from San Francisco Airport to Northern Ireland.
How old do you have to be to fly from San Francisco Airport to Northern Ireland?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from San Francisco to Northern Ireland

Compare and see reviews for airlines that fly from San Francisco to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $586	Free Cancellation	Rating 6.7 7,819 reviews		Search British Airways flights

Why use momondo?

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

Finding the right flight to Northern Ireland from San Francisco is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.

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

Yes. All flights to Northern Ireland from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for San Francisco to Northern Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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