£347 Find Cheap Flights from Singapore to San Francisco – Compare and Save

Among airlines operating Singapore to San Francisco flights:

• Singapore Airlines: offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between Singapore and San Francisco. The airlines offering direct flights on this route include:

• Singapore Airlines
• United Airlines

Flights from Singapore to San Francisco usually depart from Singapore Changi (SIN) and arrive at San Francisco (SFO).

Here are some options for this route, based on selected ticket types and cabin classes:

• Singapore Airlines: a cabin bag and a checked bag in Economy class
• United Airlines: a cabin bag and a checked bag in Economy class
• ANA: a cabin bag and a checked bag in Economy class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Three cabin classes are available on flights from Singapore to San Francisco:

• Economy class
• Premium Economy Class
• Business Class

On this route, direct and stopover fares are close on average, with direct at £669 return and stopover options via Hong Kong Intl (HKG) at £655.

The Boeing 787-9 Dreamliner family is used most often on this route, operated mainly by United Airlines and Air Japan. Other aircraft seen on the route include Airbus A350-900 variants.

One-stop flights from Singapore to San Francisco most commonly connect through:

• Taipei City Taiwan Taoyuan Intl (TPE) – 47% of one-stop connections
• Hong Kong Intl (HKG) – 29% of one-stop connections
• Tokyo Narita (NRT) – 10% of one-stop connections
• Incheon Intl (ICN) – 6% of one-stop connections

Taipei City Taiwan Taoyuan Intl (TPE) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 16% on the Singapore to San Francisco route. Wednesday is the cheapest departure day at £622 return on average, while Sunday is the most expensive at £737, a difference of £115. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Singapore to San Francisco route, 19% of flights were delayed in the past 3 months, with delays averaging 2 hours 27 minutes.

Morning is the busiest departure period on Singapore to San Francisco flights, with 50% leaving in that window. Evening departures account for 25%, Night flights for 25%, and Afternoon flights for 0%.

Some of the most popular sights in San Francisco are Union Square, Fisherman's Wharf, and Moscone Center. These are among the most viewed places in San Francisco on KAYAK.

These are the earliest and latest flight times available from Singapore to San Francisco:

• Earliest: departs at 08:45 and lands at 23:57
• Latest: departs at 22:20 and lands at 13:32.

The flight takes about 15h 12m.

Last-minute fares on this route (booked within 2 weeks of departure) run 15% above the route average of £671. Book 25 weeks before departure for the lowest fares.

A direct flight from Singapore to San Francisco takes 15h 12m, covering 8,433 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

One-way fares from Singapore to San Francisco are currently lower than usual. Average one-way flight prices are about £352, which is 17% below the typical average for this route.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Tokyo Narita (NRT) gives the shortest average 1-stop total travel time of 19h 37m, compared to 20h 26m via Vancouver Intl (YVR) and 20h 35m via Hong Kong Intl (HKG).

San Francisco is 15 hours behind Singapore (Pacific Time vs Singapore Time). Plan for the time shift when scheduling connections or first-day activities.

San Francisco Airport (SFO) hosts 5 major car hire companies, with daily rates starting from around £11 for economy cars. Top options include:
• Thrifty
• Europcar
• Dollar
• Hertz
• Fox

Return flights from Singapore to San Francisco range from £565 to £793, with an average of £671 over the past 12 months. Anything below £565 counts as a good deal.