$326 Find Cheap Flights from San Francisco to Northern Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Northern Ireland departing on 5/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Northern Ireland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Northern Ireland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Northern Ireland, as well as popular online travel agencies
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Flight Deals

Book Cheap San Francisco to Northern Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Northern Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Northern Ireland

Wed, Mar 4 - Sun, Mar 8
British Airways Logo
5:30 pm - 4:35 pm
SFO
-
BHD
15h 05m
1 stop
British Airways Logo
12:10 pm - 4:00 pm
BHD
-
SFO
34h 50m
1 stop
$706British Airways
Wed, Mar 4 - Sun, Mar 8
British Airways Logo
5:30 pm - 7:30 am
SFO
-
BHD
30h 00m
1 stop
British Airways Logo
8:25 pm - 4:00 pm
BHD
-
SFO
26h 35m
1 stop
$715British Airways
Wed, Mar 4 - Sun, Mar 8
British Airways Logo
8:40 pm - 7:30 am
SFO
-
BHD
26h 50m
1 stop
British Airways Logo
5:35 pm - 4:00 pm
BHD
-
SFO
29h 25m
1 stop
$717British Airways
Sat, May 16 - Mon, May 25
British Airways Logo
4:35 pm - 6:15 pm
SFO
-
BHD
17h 40m
1 stop
British Airways Logo
3:20 pm - 1:50 pm
BHD
-
SFO
30h 30m
1 stop
$802British Airways
Fri, May 15 - Mon, May 25
British Airways Logo
10:13 am - 6:10 pm
SFO
-
BHD
23h 57m
2 stops
British Airways Logo
7:35 pm - 1:50 pm
BHD
-
SFO
26h 15m
1 stop
$824British Airways
Sat, May 16 - Mon, May 25
British Airways Logo
1:40 pm - 6:15 pm
SFO
-
BHD
20h 35m
2 stops
British Airways Logo
7:35 pm - 1:50 pm
BHD
-
SFO
26h 15m
1 stop
$826British Airways
Fri, May 15 - Mon, May 25
British Airways Logo
10:13 am - 8:35 pm
SFO
-
BHD
26h 22m
2 stops
British Airways Logo
7:35 pm - 7:20 pm
BHD
-
SFO
31h 45m
2 stops
$831British Airways
Sat, May 16 - Sun, May 24
British Airways Logo
4:35 pm - 3:05 pm
SFO
-
BHD
14h 30m
1 stop
British Airways Logo
6:30 am - 1:50 pm
BHD
-
SFO
15h 20m
1 stop
$851British Airways
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
5:40 pm - 10:45 pm
SFO
-
BFS
21h 05m
2 stops
Multiple Airlines Logo
5:55 am - 3:55 pm
BFS
-
SFO
18h 00m
2 stops
$877Multiple Airlines
Fri, May 15 - Thu, May 28
Multiple Airlines Logo
1:00 pm - 9:25 am
SFO
-
BFS
36h 25m
2 stops
Multiple Airlines Logo
8:05 pm - 8:50 pm
BFS
-
SFO
32h 45m
1 stop
$1,065Multiple Airlines
Booking Insights

KAYAK's insights & trends for San Francisco to Northern Ireland flights

Get data-powered insights and trends into flights from San Francisco to Northern Ireland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Francisco to Northern Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Northern Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Northern Ireland is October, when tickets cost $651 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,213 and $1,095 respectively.

Good to know

Low seasonNovember
Cheapest flight$326
Best time to beat the crowds but there is an average 25% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from San Francisco to Belfast Intl Airport

FAQs - booking Northern Ireland flights

  • How does KAYAK find such low prices on flights from San Francisco to Northern Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Northern Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Northern Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Francisco to Northern Ireland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Northern Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Francisco to Northern Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Northern Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Francisco to Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Francisco to Northern Ireland

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Northern Ireland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Northern Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 7764 reviews
7.6Crew
6.8Comfort
6.9Boarding
6.4Food
6.4Entertainment
Airline reviews

They had us seating down for one hour just waiting on the plane

2.0 MediocreAnonymous, Feb 2026
LAX - LHR
Read more British Airways reviews

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Awful it always is unfortunately is the only way to fly direct to london

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Great crew and food and beverage. Seating tight but not the airline's fault. Will definitely fly BA in future!

The flight was very delayed in taking off - which was out of control of the crew, but then the pilot worked hard so we only arrived about 30 minutes late. Everyone was very friendly and accommodating!

Everything you need to know for your flight from San Francisco to Northern Ireland

Information on your arrival and departure airports