$176 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 2/8. 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

Fri, Feb 27 - Tue, Mar 3
British Airways Logo
5:30 pm - 7:15 pm
SFO
-
BHD
17h 45m1 stop
British Airways Logo
6:35 am - 6:45 pm
BHD
-
SFO
20h 10m1 stop
$627British Airways
Fri, Feb 27 - Tue, Mar 3
British Airways Logo
2:27 pm - 7:15 pm
SFO
-
BHD
20h 48m2 stops
British Airways Logo
8:45 am - 3:00 pm
BHD
-
SFO
14h 15m1 stop
$631British Airways
Fri, Feb 27 - Tue, Mar 3
British Airways Logo
2:27 pm - 7:15 pm
SFO
-
BHD
20h 48m2 stops
British Airways Logo
6:35 am - 3:00 pm
BHD
-
SFO
16h 25m1 stop
$632British Airways
Fri, Feb 27 - Tue, Mar 3
British Airways Logo
2:27 pm - 5:15 pm
SFO
-
BHD
18h 48m2 stops
British Airways Logo
8:45 am - 8:42 pm
BHD
-
SFO
19h 57m2 stops
$641British Airways
Fri, Feb 27 - Tue, Mar 3
British Airways Logo
2:27 pm - 5:15 pm
SFO
-
BHD
18h 48m2 stops
British Airways Logo
10:00 am - 11:10 pm
BHD
-
SFO
21h 10m2 stops
$642British Airways
Sat, Mar 21 - Sun, Apr 5
British Airways Logo
9:40 pm - 7:40 pm
SFO
-
BHD
15h 00m1 stop
British Airways Logo
6:50 am - 3:50 pm
BHD
-
SFO
17h 00m2 stops
$703British Airways
Sat, Mar 21 - Sun, Apr 5
British Airways Logo
3:13 pm - 10:20 am
SFO
-
BHD
36h 07m2 stops
British Airways Logo
6:00 pm - 11:50 pm
BHD
-
SFO
37h 50m2 stops
$704British Airways
Sat, Mar 21 - Sun, Apr 5
British Airways Logo
9:40 pm - 8:30 pm
SFO
-
BHD
15h 50m1 stop
British Airways Logo
8:10 pm - 1:50 pm
BHD
-
SFO
25h 40m1 stop
$705British Airways
Sat, Feb 21 - Sat, Feb 28
Multiple Airlines Logo
3:40 pm - 10:10 pm
SFO
-
BFS
22h 30m2 stops
Multiple Airlines Logo
11:10 pm - 2:35 pm
BFS
-
SFO
47h 25m3 stops
$743Multiple Airlines
Fri, Feb 20 - Fri, Feb 27
Multiple Airlines Logo
5:20 pm - 10:00 pm
SFO
-
BFS
20h 40m2 stops
Multiple Airlines Logo
2:30 pm - 2:45 pm
BFS
-
SFO
32h 15m3 stops
$745Multiple 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.

How much is a round-trip flight from San Francisco to Northern Ireland?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to Northern Ireland departing in February.

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 April, when tickets cost $622 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,232 and $1,115 respectively.

Good to know

Low seasonNovember
Cheapest flight$176
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly and prices are also 27% lower on average.
Flight from San Francisco to Belfast City 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 7657 reviews
6.4Entertainment
7.6Crew
6.9Boarding
6.8Comfort
6.4Food
Airline reviews

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

10.0 ExcellentAnonymous, Jan 2026
SFO - LHR
Read more British Airways reviews

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!

Crying baby the ENTIRE flight. Not your fault, but I paid 2700 for a premium economy ticket and it wasn't worth it. should have just stuck with coach. flight attendants very mediocre - minimal effort. Plane didn't seem very clean. Didn't have any cleansing wipes - most airlines give you this when you board. Flat screen scrolling didn't work. Toiletry case a joke - why bother at all?

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

I was transferred to an American Airlines flight. The boarding was late and unorganized. The seating was extremely tight and uncomfortable. Will not use AA again.

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

Information on your arrival and departure airports