Cheap Flights from San Francisco International to Belfast

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Compare San Francisco International to Belfast flight deals

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Flight deals from San Francisco International to Belfast

Looking for a cheap last-minute deal or the best return flight from San Francisco International to Belfast? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from San Francisco International to Belfast

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Francisco International to Belfast flights are currently cheapest in April.

Alternative San Francisco International to Belfast routes

Looking for the cheapest, fastest or easiest route from San Francisco International to Belfast? You could fly into the following airports instead.

San Francisco to Belfast: Flight information

The things to know before you go.
Cheapest flight found598 €
Cheapest month to flyApril

Finding cheap flights from San Francisco International to Belfast: Frequently asked questions

There are 2 airports in Belfast: Belfast City and Belfast International.
The best price we found for a return flight from San Francisco International to Belfast is 598 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from San Francisco International to Belfast. But we found flights with one or more stops from 598 €.
As of February 2025, there are no flights flying from San Francisco International to Belfast.
The cheapest month to fly from San Francisco International to Belfast is usually February 2025.
If you're flying from San Francisco International Airport, the cheapest airport near Belfast is Belfast City – which is 3.7 km away from the centre of Belfast. We've found flights into this airport from 598 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Belfast on Tuesday, 8 April 2025.
No airlines currently offer direct flights between San Francisco International Airport and Belfast. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Belfast but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Belfast is around 40 days in advance, so don’t leave your flight to the last minute.
In February, the average temperature is usually around 5°C. August is typically the warmest month in Belfast, when it usually averages around 17°C. You can expect the least rain in May. The coldest month is January, with temperatures averaging 4°C. The rainiest month is October.
Currently, Iberia offers the cheapest flight tickets to Belfast.

Flying from San Francisco International Airport (SFO) to Belfast: what you need to know

  • San Francisco International Airport is located in San Francisco. Operating on the UTC+0 timezone, Belfast is 7 hours ahead of San Francisco.

  • To ensure you catch your flight from SFO to Belfast, allow plenty of time for things like baggage drop and finding your gate. Arriving two hours ahead of international departures and one hour before domestic flights is the general travel rule.

  • Peak months like August or holiday periods such as Christmas and New Year will mean bigger lines at check-in and security. Travelling then? Play it safe and get to the airport even earlier. Arriving two hours before a domestic flight and up four hours ahead of international flights is a smart idea.

  • We make it a cinch to plan a flight from SFO to Belfast with a stopover. To see all your options, uncheck 'Direct flights only.' Next, choose a flight that has a stop long enough to see the sights of the city of your choice. Some popular stopovers include:

    • Frankfurt Airport (FRA)

    • Amsterdam Airport Schiphol Airport (AMS)

    • London Heathrow Airport (LHR)

  • You can travel to United Kingdom for tourism purposes without a visa if you hold a passport from United States. But before booking your cheap tickets from San Francisco International Airport to Belfast, make sure you have the latest information. Visa rules are subject to change, and you may need some travel documentation if your trip is for work or other reasons.

  • The journey from central San Francisco to SFO takes around 47 minutes by public transport. If you ride-share, drive or take a cab, you'll cover the 21 kilometres in 20 minutes or so, depending on traffic conditions.

  • Planning to catch an early flight from San Francisco International Airport to Belfast? Avoid the stress of rushing to the terminal (and catch some extra z's) by choosing one of these hotels close to SFO:

How to find the cheapest flights from San Francisco International Airport (SFO) to Belfast

  • 324 € is the lowest price for a one-way ticket from San Francisco International Airport to Belfast. A return flight starts from 598 €. These fares may change based on demand and availability.

  • It's often best to book ahead of time if you're hoping to get cheap tickets from SFO to Belfast. That's because airlines adjust prices based on demand, which tends to increase closer to the departure date.

  • Getting cheap tickets from San Francisco International Airport to Belfast is more likely if you can be flexible with your trip dates. Try using the 'Whole month' tool to see the best prices across every month and snap up a great deal.

  • Sign into your online account or use the app to set up a Price Alert. We'll get in touch right away if there's a cheaper deal on this route. It's easy to do, and it'll save you the hassle of searching for cheap tickets from SFO to Belfast every day.

  • Play around with the filters to find your ideal trip. To see the 'Fastest,' 'Cheapest' or 'Best' flights from San Francisco International Airport to Belfast, use the 'Sort by' function. You can also filter by airline, arrival and departure times, and number of stops.

Airports in Belfast

Belfast International Airport (BFS)

  • Belfast International Airport (BFS) to central Belfast is approximately 32 kilometres. It takes around 31 minutes to get to the centre driving.

  • Travelling by public transport takes around 2 hours and 2 minutes.

  • If you're arriving on a late flight from San Francisco International Airport to Belfast, nothing beats the convenience of staying near the terminal. Grab your luggage from the carousel and then be showered and snoozing soon after at one of these accommodation options near BFS:

George Best Belfast City Airport (BHD)

  • Central Belfast is approximately 8 kilometres from George Best Belfast City Airport (BHD). After your flight from San Francisco International Airport to Belfast has touched down and you've navigated your way to arrivals, expect a drive of about 12 minutes.

  • If you're catching public transport, it'll take about 22 minutes.

  • After your flight from SFO to Belfast, tuck yourself in at a hotel close to BHD. These are some great options that'll help you slip into relaxation mode:

Best time to go to Belfast

  • August is the most popular month for flights from San Francisco International Airport to Belfast. To escape the crowds, head for Belfast in February when things are quieter.

  • Lock in your flight from San Francisco International Airport to Belfast for July to visit the city during its warmest month. Expect temperatures to range from 10ºC to 19ºC.

  • January sees average temperatures of between 1ºC and 8ºC. Search for cheap flights from SFO to Belfast sometime around then if you want to travel when it's cooler.

More about Belfast

  • After locking in your flight from San Francisco International Airport to Belfast, think about where to rest your head in this city. Make one of these options your base for exploring Belfast:

  • Titanic Belfast and Crumlin Road Gaol Visitor Attraction and Conference Centre are just the start of the big attractions to put on your Belfast travel itinerary. Keep the sightseeing going at Botanic Gardens.

Complete your Belfast trip with a car rental

  • Finding you a cheap flight from San Francisco International Airport to Belfast isn't our only cool trick. Check out our car rentals in Belfast and have more freedom to explore. We find deals from trusted car rental providers and put them all in one place. Instantly compare offers and then book with no fees.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.