Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Northern Ireland to San Francisco from £422

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to San Francisco departing on 17/9. 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

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Northern Ireland to San Francisco

Cheap return flights

American Airlines Logo
11:05 - 18:45BHD-SFO
15h 40m1 stop
American Airlines Logo
18:30 - 18:35SFO-BHD
17h 05m1 stop
£470American Airlines
Find Deal
Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
10:40 - 18:45BHD-SFO
16h 05m1 stop
American Airlines Logo
18:09 - 18:35SFO-BHD
17h 26m2 stops
£471American Airlines
Find Deal
Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
11:05 - 22:40BHD-SFO
19h 35m2 stops
American Airlines Logo
10:24 - 14:15SFO-BHD
20h 51m2 stops
£475American Airlines
Find Deal
Thu, 5 Mar - Mon, 9 Mar
British Airways Logo
11:30 - 21:43BHD-SFO
18h 13m2 stops
British Airways Logo
14:45 - 14:15SFO-BHD
16h 30m2 stops
£546British Airways
Find Deal
Wed, 22 Oct - Wed, 29 Oct
British Airways Logo
06:50 - 13:50BHD-SFO
15h 00m1 stop
British Airways Logo
14:45 - 14:15SFO-BHD
16h 30m2 stops
£554British Airways
Find Deal
Wed, 22 Oct - Wed, 29 Oct
Delta Logo
06:30 - 11:45BHD-SFO
13h 15m1 stop
Delta Logo
14:55 - 16:50SFO-BHD
18h 55m1 stop
£555Delta
Find Deal
Wed, 22 Oct - Wed, 29 Oct
Logo
09:35 - 17:25BHD-SFO
15h 50m1 stop
Logo
18:30 - 14:50SFO-BHD
13h 20m1 stop
£620
Find Deal
Tue, 21 Oct - Tue, 28 Oct
Logo
09:35 - 20:27BHD-SFO
18h 52m2 stops
Logo
18:30 - 14:50SFO-BHD
13h 20m1 stop
£627
Find Deal
Tue, 21 Oct - Tue, 28 Oct
Aer Lingus Logo
06:55 - 15:55BHD-SFO
17h 00m2 stops
Aer Lingus Logo
18:20 - 17:20SFO-BHD
16h 00m2 stops
£789Aer Lingus
Find Deal
Tue, 21 Oct - Tue, 28 Oct
Aer Lingus Logo
06:55 - 15:55BHD-SFO
17h 00m2 stops
Aer Lingus Logo
18:20 - 17:20SFO-BHD
16h 00m2 stops
£803Aer Lingus
Find Deal
Wed, 22 Oct - Tue, 28 Oct

American Airlines flights from Northern Ireland to San Francisco

Our best American Airlines deals on Northern Ireland to San Francisco flight tickets
American Airlines
5 Mar
BHD11:05Belfast City
15h 40m
1 stop
SFO18:45San Francisco
9 Mar
SFO18:30San Francisco
17h 05m
1 stop
BHD18:35Belfast City
£470
Find similar
American Airlines
5 Mar
BHD10:40Belfast City
16h 05m
1 stop
SFO18:45San Francisco
9 Mar
SFO18:09San Francisco
17h 26m
2 stops
BHD18:35Belfast City
£471
Find similar
American Airlines
5 Mar
BHD11:05Belfast City
19h 35m
2 stops
SFO22:40San Francisco
9 Mar
SFO10:24San Francisco
20h 51m
2 stops
BHD14:15Belfast City
£475
Find similar

British Airways flights from Northern Ireland to San Francisco

Our best British Airways deals on Northern Ireland to San Francisco flight tickets
British Airways
22 Oct
BHD11:30Belfast City
18h 13m
2 stops
SFO21:43San Francisco
29 Oct
SFO14:45San Francisco
16h 30m
2 stops
BHD14:15Belfast City
£546
Find similar
British Airways
22 Oct
BHD06:50Belfast City
15h 00m
1 stop
SFO13:50San Francisco
29 Oct
SFO14:45San Francisco
16h 30m
2 stops
BHD14:15Belfast City
£554
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland to San Francisco 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 279,928 searches. Data last updated 9 September 2025.
Use the filters below to find and compare flights from Northern Ireland to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 5/3

11:05-18:45

1 stop15h 40m

San Francisco

Mon 9/3

18:30-18:35

1 stop17h 05m

£470

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 5/3

10:40-18:45

1 stop16h 05m

San Francisco

Mon 9/3

18:09-18:35

2 stops17h 26m

£471

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 5/3

11:05-22:40

2 stops19h 35m

San Francisco

Mon 9/3

10:24-14:15

2 stops20h 51m

£475

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 22/10

11:30-21:43

2 stops18h 13m

San Francisco

Wed 29/10

14:45-14:15

2 stops16h 30m

£546

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 22/10

06:50-13:50

1 stop15h 00m

San Francisco

Wed 29/10

14:45-14:15

2 stops16h 30m

£554

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 22/10

06:30-11:45

1 stop13h 15m

San Francisco

Wed 29/10

14:55-16:50

1 stop18h 55m

£555

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 21/10

09:35-17:25

1 stop15h 50m

San Francisco

Tue 28/10

18:30-14:50

1 stop13h 20m

£620

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 21/10

09:35-20:27

2 stops18h 52m

San Francisco

Tue 28/10

18:30-14:50

1 stop13h 20m

£627

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 21/10

06:55-15:55

2 stops17h 00m

San Francisco

Tue 28/10

18:20-17:20

2 stops16h 00m

£789

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 22/10

06:55-15:55

2 stops17h 00m

San Francisco

Tue 28/10

18:20-17:20

2 stops16h 00m

£803

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

See travel insights to San Francisco from

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

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 day to depart on your flight to San Francisco?

The cheapest day to depart on your flight to San Francisco is on a Thursday when prices can be found for as low as £487. This is often the case because there is less demand to fly during this day of the week. Flights from Northern Ireland to San Francisco on a Tuesday will generally be more expensive and average around £717. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San Francisco?

Our most recent data shows that the best time of day to fly to San Francisco is in the afternoon. Flights from Northern Ireland to San Francisco during this time can be as low as £556. Try not to purchase tickets in the morning because they tend to be around £589. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Northern Ireland to San Francisco flight deals and tips

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

Direct flights

None
There are no direct flights from Northern Ireland to San Francisco. There are no popular flight routes from Northern Ireland to San Francisco.
Search flight deals

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

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

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

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

    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 Northern Ireland to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents required for your trip to San Francisco Airport 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 San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Northern Ireland to San Francisco

Compare and see reviews for airlines that fly from Northern Ireland to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £404Free CancellationRating
6.7
7,354 reviews
Search British Airways flights
American AirlinesPriceFrom £468Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Carmel-by-the-Sea
Santa Clara
Seaside
Vacaville
Salinas
Rohnert Park
Campbell
Sunnyvale
Milpitas
San Ramon
South San Francisco
Capitola
Sonoma
San Bruno
Sausalito
Millbrae
Santa Cruz
Woodland
Redwood City
Burlingame

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Northern Ireland to San Francisco . Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Northern Ireland to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to San Francisco from Northern Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Northern Ireland to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organise 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
Thu 9/10
Thu 16/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States