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

British Airways is the most popular carrier 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 December 2025, 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.

$206 Cheap Flights from San Francisco to Northern Ireland in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:40 pm - 6:35 pm

SFO

BHD

13h 55m1 stop

5:45 pm - 3:00 pm

BHD

SFO

29h 15m1 stop

$619British Airways

Mon, Jan 19 - Mon, Jan 26

2:36 pm - 4:45 pm

SFO

BHD

18h 09m2 stops

7:25 pm - 3:00 pm

BHD

SFO

27h 35m1 stop

$640British Airways

Tue, Jan 13 - Tue, Jan 20

2:36 pm - 4:45 pm

SFO

BHD

18h 09m2 stops

8:45 am - 11:12 pm

BHD

SFO

22h 27m2 stops

$643British Airways

Tue, Jan 13 - Tue, Jan 20

5:30 pm - 4:45 pm

SFO

BHD

15h 15m1 stop

8:45 am - 3:00 pm

BHD

SFO

14h 15m1 stop

$649British Airways

Tue, Jan 13 - Tue, Jan 20

8:40 pm - 8:15 pm

SFO

BHD

15h 35m1 stop

7:25 pm - 8:10 pm

BHD

SFO

32h 45m2 stops

$667British Airways

Mon, Jan 19 - Mon, Jan 26

11:13 pm - 11:30 am

SFO

BHD

28h 17m2 stops

7:25 pm - 8:10 pm

BHD

SFO

32h 45m2 stops

$669British Airways

Mon, Jan 19 - Mon, Jan 26

4:35 pm - 7:10 pm

SFO

BHD

19h 35m2 stops

5:35 pm - 4:00 pm

BHD

SFO

29h 25m1 stop

$670British Airways

Wed, Mar 18 - Sun, Mar 22

3:07 pm - 2:15 pm

SFO

BHD

16h 08m2 stops

3:10 pm - 11:13 am

BHD

SFO

27h 03m2 stops

$673British Airways

Wed, Mar 18 - Sun, Mar 22

6:20 pm - 4:10 pm

SFO

BFS

14h 50m2 stops

7:10 am - 3:35 pm

BFS

SFO

39h 25m3 stops

$754Multiple Airlines

Wed, Mar 18 - Sun, Mar 22

8:25 am - 2:10 pm

SFO

BFS

22h 45m2 stops

3:45 pm - 1:40 pm

BFS

SFO

28h 55m2 stops

$759Multiple Airlines

Wed, Mar 18 - Sun, Mar 22

British Airways flights from San Francisco to Northern Ireland

Our best British Airways deals on San Francisco to Northern Ireland flight tickets

British Airways

Jan 19

SFO8:40 pmSan Francisco

13h 55m

1 stop

BHD6:35 pmBelfast City

Jan 26

BHD5:45 pmBelfast City

29h 15m

1 stop

SFO3:00 pmSan Francisco

$619

Find similar

British Airways

Jan 13

SFO2:36 pmSan Francisco

18h 09m

2 stops

BHD4:45 pmBelfast City

Jan 20

BHD7:25 pmBelfast City

27h 35m

1 stop

SFO3:00 pmSan Francisco

$640

Find similar

British Airways

Jan 13

SFO2:36 pmSan Francisco

18h 09m

2 stops

BHD4:45 pmBelfast City

Jan 20

BHD8:45 amBelfast City

22h 27m

2 stops

SFO11:12 pmSan Francisco

$643

Find similar

American Airlines flights from San Francisco to Northern Ireland

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

American Airlines

Jan 15

SFO3:35 pmSan Francisco

19h 15m

2 stops

BHD6:50 pmBelfast City

Jan 21

BHD6:35 amBelfast City

20h 37m

2 stops

SFO7:12 pmSan Francisco

$687

Find similar

American Airlines

Jan 19

SFO5:30 pmSan Francisco

14h 35m

1 stop

BHD4:05 pmBelfast City

Jan 26

BHD9:15 amBelfast City

13h 45m

1 stop

SFO3:00 pmSan Francisco

$705

Find similar

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

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 1/19

8:40 pm-6:35 pm

1 stop13h 55m

Belfast City

Mon 1/26

5:45 pm-3:00 pm

1 stop29h 15m

$619

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 1/13

2:36 pm-4:45 pm

2 stops18h 09m

Belfast City

Tue 1/20

7:25 pm-3:00 pm

1 stop27h 35m

$640

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 1/13

2:36 pm-4:45 pm

2 stops18h 09m

Belfast City

Tue 1/20

8:45 am-11:12 pm

2 stops22h 27m

$643

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 1/13

5:30 pm-4:45 pm

1 stop15h 15m

Belfast City

Tue 1/20

8:45 am-3:00 pm

1 stop14h 15m

$649

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 1/19

8:40 pm-8:15 pm

1 stop15h 35m

Belfast City

Mon 1/26

7:25 pm-8:10 pm

2 stops32h 45m

$667

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 1/19

11:13 pm-11:30 am

2 stops28h 17m

Belfast City

Mon 1/26

7:25 pm-8:10 pm

2 stops32h 45m

$669

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/18

4:35 pm-7:10 pm

2 stops19h 35m

Belfast City

Sun 3/22

5:35 pm-4:00 pm

1 stop29h 25m

$670

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/18

3:07 pm-2:15 pm

2 stops16h 08m

Belfast City

Sun 3/22

3:10 pm-11:13 am

2 stops27h 03m

$673

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Wed 3/18

6:20 pm-4:10 pm

2 stops14h 50m

Belfast Intl

Sun 3/22

7:10 am-3:35 pm

3 stops39h 25m

$754

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Wed 3/18

8:25 am-2:10 pm

2 stops22h 45m

Belfast Intl

Sun 3/22

3:45 pm-1:40 pm

2 stops28h 55m

$759

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 $622, 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 October instead. Flights to Northern Ireland in October, while not as cheap as those in April, still average around $651.

What is the cheapest day to depart on your flight to Northern Ireland?

The cheapest day to depart on your flight to Northern Ireland is on a Tuesday when prices can be found for as low as $690. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to Northern Ireland for around $1,423.

What is the cheapest time of day to depart on your flight to Northern Ireland?

At noon is the cheapest time of day to fly from San Francisco to Northern Ireland when you can find flight prices for as low as $819. Flying to Northern Ireland at noon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $1,295.

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

You could potentially save up to 17% 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 35m
Direct flights	None

The fastest flight from San Francisco to Northern Ireland takes 14h 35m

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 December 2025, 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 $621	Free Cancellation	Rating 6.7 7,600 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.

An easier way to manage your Northern Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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Tue 1/20

Tue 1/27

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Find better results for your trip to Northern Ireland

Popular cities in Northern Ireland

Flights to Londonfrom $337

Flights to Manchesterfrom $385

Flights to Edinburghfrom $365

Flights to Birminghamfrom $403

Flights to Glasgowfrom $393

Flights to Newcastle upon Tynefrom $478

Flights to Belfastfrom $480

Flights to Bristolfrom $423

Flights to Invernessfrom $417

Flights to Liverpoolfrom $424

Flights to Aberdeenfrom $522

Flights to Leedsfrom $420

Cheap flights from San Francisco to Northern Ireland from $206

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 Northern Ireland departing on 4/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from San Francisco to Northern Ireland

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

British Airways flights from San Francisco to Northern Ireland

Our best British Airways deals on San Francisco to Northern Ireland flight tickets

American Airlines flights from San Francisco to Northern Ireland

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

momondo Fare Finder

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

See travel insights to Northern Ireland from

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

What is the cheapest month to fly to Northern Ireland?

What is the cheapest day to depart on your flight to Northern Ireland?

What is the cheapest time of day to depart on your flight to Northern Ireland?

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

You could potentially save up to 17% on your flight if you consider stops on a San Francisco to Northern Ireland flight.

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

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

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

Direct flights

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

How many operators does momondo search 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?

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

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

Why use momondo?

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

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

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

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

An easier way to manage your Northern Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Northern Ireland

Popular cities in Northern Ireland

Popular flights according to clicks in the last 7 days on momondo