Cheap Flights from San Francisco to Singapore from S$ 368

Frequently Asked Questions

• Which airlines offer the cheapest flights from San Francisco (SFO) to Singapore (SIN)?

  Based on Trip.com data, Singapore Airlines offers one-way fares as low as S$ 368 on Cheapest nonstop routes (e.g. SFO to SIN on Thu, Jul 23), while United Airlines offers Cheapest nonstop round-trips from S$ 1,248 departing on Wed, Aug 5 and returning on Tue, Aug 11.

• Which airlines offer direct flights from San Francisco to Singapore?

  At the moment, you can catch a direct flight from San Francisco to Singapore with the following airlines, including: Singapore Airlines United Airlines Vietnam Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from San Francisco (SFO) to Singapore (SIN)?

  It takes about 16 hours 42 minutes to fly from San Francisco (SFO) to Singapore (SIN).

• When is the best time to book flights from San Francisco to Singapore?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Francisco to Singapore is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from San Francisco to Singapore?

  Based on Trip.com data in the past 4 weeks, there is 19 flight per week flying from San Francisco to Singapore. You can check the weekly schedule for popular airlines on this route below: Singapore Airlines: S/M/T/W/T/F/S -- SQ033 (22:34) Singapore Airlines: S/M/T/W/T/F/S -- SQ031 (12:17) United Airlines: S/M/T/W/T/F/S -- UA029 (11:39)

• How can I find the best deals on flights from San Francisco to Singapore?

  To find best deals on flights from San Francisco to Singapore, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Jul 23, with one-way flights priced at just S$ 368.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Singapore Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Singapore travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from San Francisco to Singapore to get the best price?

  The cheapest months to fly from San Francisco to Singapore is September, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from San Francisco to Singapore?

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from San Francisco to Singapore on June 16, 2026 with Air India, with prices starting at S$ 764.

• Which airports can I fly through when travelling to Singapore from San Francisco?

  You can land at any one of the following hubs in Singapore, with San Francisco International Airport to Singapore Changi Airport (SFO-SIN) is by far the most common option on this route: Singapore Changi Airport (SIN) Seletar Airport (XSP).

• What is the time difference between San Francisco and Singapore?

  The time difference between Singapore and San Francisco is 16h.

• How can I change or cancel my flight ticket from San Francisco to Singapore?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.