€520 Cheap Flights Belfast to San Francisco (BFS-SFO)

The lowest price advertised for a round-trip flight between BFS and SFO is €766. But you better get moving. This figure is based on fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Most flights can be conveniently cancelled online, but whether you are charged a fee varies between airlines. If you do have to cancel your getaway, follow the instructions in the Customer Service Portal.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Belfast International Airport to San Francisco Intl. Airport (SFO) flights, you'll see a "no change fees" filter for you to select.

With around 8,100 kilometres separating Crumlin and San Francisco, your flight will be a long one. Pack wisely and make your trip comfortable. Little things like warm clothing and a cosy travel pillow should be in your carry-on bag.

Direct flights aren't available, so you'll have to make at least one stop between Belfast International Airport and San Francisco Airport. Use the layover time to stretch your legs and grab a coffee.

Tickets from Belfast Intl. Airport (BFS) to SFO are available up to a year prior to departure on Expedia. And although you may occasionally score fantastic last-minute deals, it's never a sure thing. Also, booking your flights in advance means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We're constantly updating our fares to bring you the biggest bargains, so keep checking in for all the latest specials.