Question 1

How long is the flight from San Francisco to Northern Ireland?

Accepted Answer

For as low as £508, British Airways can have you in Northern Ireland from San Francisco in 15h 05m. The distance between San Francisco and Northern Ireland is about 5038 mi.

Question 2

What is the cheapest month to book a flight from San Francisco to Northern Ireland?

Accepted Answer

Currently, April is the cheapest month in which you can book a flight from San Francisco to Northern Ireland (average of £438). Flying from San Francisco to Northern Ireland in November is currently the most expensive (average of £771). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 3

E

Accepted Answer

In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

Question 4

E

Accepted Answer

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Question 5

What are the most popular routes from San Francisco to Northern Ireland?

Accepted Answer

When deciding which route to take from San Francisco to Northern Ireland consider San Francisco - Belfast Intl, San Francisco - Belfast City or San Francisco - Campbeltown Machrihanish as they are the most popular.

Question 6

What is the cheapest time of day to fly from SFO to NIR?

Accepted Answer

When flying from San Francisco to Northern Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 7

What airport do you fly from for flights from San Francisco to Northern Ireland?

Accepted Answer

San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly out of when you book flights from San Francisco to Northern Ireland.

Question 8

Can I find deals for flights from San Francisco to Northern Ireland that include hotel bookings?

Accepted Answer

Yes. In addition to deals on San Francisco to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 9

How can I find direct flights from San Francisco to Northern Ireland?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Northern Ireland.

Question 10

Can I find deals for business class flights from San Francisco to Northern Ireland?

Accepted Answer

Yes. Cheapflights offers flight deals from San Francisco to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 11

How does Cheapflights help users find flights from San Francisco to Northern Ireland?

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Northern Ireland from San Francisco today with Cheapflights!

Question 12

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Northern Ireland?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from San Francisco to Northern Ireland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 13

Can Cheapflights find flights from San Francisco to Northern Ireland with no change fees?

Accepted Answer

Need flexible booking options for your flight to Northern Ireland from San Francisco? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 14

Can Cheapflights notify me if prices for flights from San Francisco to Northern Ireland become cheaper?

Accepted Answer

Of course! You can now track prices for flights from San Francisco to Northern Ireland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Round-trip from	£503
Popular in	June
Cheapest in	April
Average price	£848

Cheap flights from San Francisco to Northern Ireland from £508

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from San Francisco to Northern Ireland

Best flights from San Francisco to Northern IrelandDiscover carefully curated flight deals from San Francisco to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.

Discover carefully curated flight deals from San Francisco to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.

Find flight deals from San Francisco to Northern Ireland

Keep the following information in mind while searching for San Francisco to Northern Ireland flight deals. Data was last updated 12 December 2025.

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Best time to book a flight from San Francisco to Northern Ireland

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What is the cheapest month to book a flight from San Francisco to Northern Ireland?

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from San Francisco to Northern Ireland?

How long is the flight from San Francisco to Northern Ireland?

What are the most popular routes from San Francisco to Northern Ireland?

Can I find deals for flights from San Francisco to Northern Ireland that include hotel bookings?

How can I find direct flights from San Francisco to Northern Ireland?

Can I find deals for business class flights from San Francisco to Northern Ireland?

What is the cheapest month to book a flight from San Francisco to Northern Ireland?

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Alternative routes for San Francisco to Northern Ireland

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How does Cheapflights help users find flights from San Francisco to Northern Ireland?

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Northern Ireland?

Can Cheapflights find flights from San Francisco to Northern Ireland with no change fees?

Can Cheapflights notify me if prices for flights from San Francisco to Northern Ireland become cheaper?

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Best flights from San Francisco to Northern Ireland
Discover carefully curated flight deals from San Francisco to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.