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 September 2025, there are 2 operators 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.

$288 Cheap Flights from San Francisco to Northern Ireland in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from San Francisco to Northern Ireland

Round-trip

One-way

Cheap round-trip flights

5:30 pm - 4:50 pmSFO-BHD

15h 20m1 stop

9:35 am - 8:43 pmBHD-SFO

19h 08m2 stops

$594British Airways

Find Deal

Sun, Mar 1 - Tue, Mar 31

7:32 am - 10:20 amSFO-BHD

18h 48m2 stops

1:40 pm - 12:04 amBHD-SFO

18h 24m2 stops

$596American Airlines

Find Deal

Sun, Mar 1 - Tue, Mar 31

8:40 pm - 6:40 pmSFO-BHD

14h 00m1 stop

8:20 pm - 1:50 pmBHD-SFO

25h 30m1 stop

$598British Airways

Find Deal

Sun, Mar 1 - Tue, Mar 31

1:45 pm - 4:55 pmSFO-BHD

19h 10m1 stop

5:20 pm - 11:50 amBHD-SFO

26h 30m1 stop

$632KLM

Find Deal

Mon, Oct 6 - Tue, Nov 4

3:23 pm - 4:55 pmSFO-BHD

17h 32m2 stops

5:20 pm - 11:50 amBHD-SFO

26h 30m1 stop

$636KLM

Find Deal

Mon, Oct 6 - Mon, Nov 3

3:23 pm - 4:55 pmSFO-BHD

17h 32m2 stops

6:30 am - 6:24 pmBHD-SFO

19h 54m2 stops

$646KLM

Find Deal

Mon, Oct 6 - Tue, Nov 4

10:55 am - 1:00 pmSFO-BHD

18h 05m2 stops

6:35 am - 6:26 pmBHD-SFO

19h 51m2 stops

$674American Airlines

Find Deal

Tue, Oct 7 - Mon, Nov 3

10:30 am - 9:00 pmSFO-BHD

26h 30m2 stops

6:30 am - 11:50 amBHD-SFO

13h 20m1 stop

$704Virgin Atlantic

Find Deal

Wed, Dec 3 - Sun, Dec 7

11:55 am - 4:50 pmSFO-BHD

20h 55m2 stops

6:30 am - 3:57 pmBHD-SFO

17h 27m2 stops

$714Delta

Find Deal

Wed, Dec 3 - Sun, Dec 7

6:12 am - 4:50 pmSFO-BHD

26h 38m2 stops

6:30 am - 11:50 amBHD-SFO

13h 20m1 stop

$1,782Delta

Find Deal

Mon, Dec 22 - Fri, Jan 2

British Airways flights from San Francisco to Northern Ireland

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

British Airways

Mar 1

SFO5:30 pmSan Francisco

15h 20m

1 stop

BHD4:50 pmBelfast City

Mar 31

BHD9:35 amBelfast City

19h 08m

2 stops

SFO8:43 pmSan Francisco

$594

Find similar

British Airways

Mar 1

SFO8:40 pmSan Francisco

14h 00m

1 stop

BHD6:40 pmBelfast City

Mar 31

BHD8:20 pmBelfast City

25h 30m

1 stop

SFO1:50 pmSan Francisco

$598

Find similar

British Airways

Dec 3

SFO5:30 pmSan Francisco

15h 05m

1 stop

BHD4:35 pmBelfast City

Dec 7

BHD9:10 amBelfast City

17h 35m

1 stop

SFO6:45 pmSan Francisco

$697

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

Mar 1

SFO7:32 amSan Francisco

18h 48m

2 stops

BHD10:20 amBelfast City

Mar 31

BHD1:40 pmBelfast City

18h 24m

2 stops

SFO12:04 amSan Francisco

$596

Find similar

American Airlines

Oct 7

SFO10:55 amSan Francisco

18h 05m

2 stops

BHD1:00 pmBelfast City

Nov 3

BHD6:35 amBelfast City

19h 51m

2 stops

SFO6:26 pmSan Francisco

$674

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

Sun 3/1

5:30 pm-4:50 pm

1 stop15h 20m

Belfast City

Tue 3/31

9:35 am-8:43 pm

2 stops19h 08m

$594

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 3/1

7:32 am-10:20 am

2 stops18h 48m

Belfast City

Tue 3/31

1:40 pm-12:04 am

2 stops18h 24m

$596

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 3/1

8:40 pm-6:40 pm

1 stop14h 00m

Belfast City

Tue 3/31

8:20 pm-1:50 pm

1 stop25h 30m

$598

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 10/6

1:45 pm-4:55 pm

1 stop19h 10m

Belfast City

Tue 11/4

5:20 pm-11:50 am

1 stop26h 30m

$632

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 10/6

3:23 pm-4:55 pm

2 stops17h 32m

Belfast City

Mon 11/3

5:20 pm-11:50 am

1 stop26h 30m

$636

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 10/6

3:23 pm-4:55 pm

2 stops17h 32m

Belfast City

Tue 11/4

6:30 am-6:24 pm

2 stops19h 54m

$646

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Tue 10/7

10:55 am-1:00 pm

2 stops18h 05m

Belfast City

Mon 11/3

6:35 am-6:26 pm

2 stops19h 51m

$674

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/3

10:30 am-9:00 pm

2 stops26h 30m

Belfast City

Sun 12/7

6:30 am-11:50 am

1 stop13h 20m

$704

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 12/3

11:55 am-4:50 pm

2 stops20h 55m

Belfast City

Sun 12/7

6:30 am-3:57 pm

2 stops17h 27m

$714

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 12/22

6:12 am-4:50 pm

2 stops26h 38m

Belfast City

Fri 1/2

6:30 am-11:50 am

1 stop13h 20m

$1,782

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 October. Flight prices, which tend to average around $588, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Northern Ireland from San Francisco during April instead. Flights to Northern Ireland in April, while not as cheap as those in October, still average around $622.

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.

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

Direct flights	None

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 September 2025, there are 2 operators 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 $588	Free Cancellation	Rating 6.6 7,361 reviews		Search British Airways flights
American Airlines	PriceFrom $635	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines 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

Find my bookings

Get notified when prices go down

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

1 adult

Wed 10/15

Wed 10/22

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Northern Ireland

Popular cities in Northern Ireland

Flights to Londonfrom $318

Flights to Manchesterfrom $392

Flights to Edinburghfrom $393

Flights to Glasgowfrom $390

Flights to Birminghamfrom $390

Flights to Newcastle upon Tynefrom $429

Flights to Belfastfrom $477

Flights to Bristolfrom $462

Flights to Invernessfrom $445

Flights to Liverpoolfrom $426

Flights to Aberdeenfrom $485

Flights to Leedsfrom $426

Cheap flights from San Francisco to Northern Ireland from $288

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

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

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 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?

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

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