United Airlines flights from Singapore to San Francisco (SIN - SFO)
Cheapflights users flying from Singapore to San Francisco on United Airlines typically fly into San Francisco and depart from Singapore Changi. Select your dates above for pricing.
United Airlines flights from Singapore to San Francisco in 2025
Find detailed information about United Airlines flights from Singapore to San Francisco. Explore the options provided by United Airlines to plan your journey from Singapore to San Francisco. Data last updated 28 April 2025.
Find United Airlines flight deals from Singapore to San Francisco
Cheapest United Airlines flights from Singapore to San FranciscoExplore the most affordable United Airlines flight options available from Singapore to San Francisco. Find the lowest fares with prices last updated on 28 April 2025.
Explore the most affordable United Airlines flight options available from Singapore to San Francisco. Find the lowest fares with prices last updated on 28 April 2025.
Travel insights for United Airlines flights from Singapore to San Francisco
Get recent, data-driven insights about United Airlines flights from Singapore to San Francisco including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Singapore to San Francisco with United Airlines?
Use this chart to determine the optimal time to book a return flight from Singapore to San Francisco. Price data was last updated on 25 April 2025.
Booking with United Airlines 37 days in advance of your planned departure date is, on average, the best time to get cheap flights from Singapore to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Singapore to San Francisco with United Airlines?
Currently, the most affordable month to book a United Airlines flight from Singapore to San Francisco in March, with an average price of S$ 533. Conversely, traveling with United Airlines from Singapore to San Francisco in July will be the most expensive, with an average cost of S$ 1,108. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
Weekly United Airlines flight availability from Singapore to San Francisco
The most United Airlines flights from SIN to SFO are scheduled on a Monday (2 on average). You will have fewer United Airlines flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
Rainfall in San Francisco by month
Plan your trip to San Francisco by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.
Temperature in San Francisco by month
Plan your trip to San Francisco by taking into account the average temperature totals by month.
If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).
Best time to book a flight from Singapore to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Singapore with our price prediction graph.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Fly from Singapore to San Francisco on another airline
Consider alternative airlines that service the San Francisco area. Flight routes are based on user searches made on Cheapflights and were last updated on 28 April 2025.
See what others are saying about United Airlines
Read reviews and see what other travellers are saying about their experiences with United Airlines. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing United Airlines for your next flight. Reviews last updated 28 April 2025.
Overview
Crew
Comfort
Food
Boarding
Entertainment