$418 Cheap Flights from Singapore (SIN) to San Francisco (SFO)

View $418 flight on Fri, Jun 13, 2025Opens in a new window

Popular airlines from Singapore Changi Airport (SIN) to San Francisco Intl. Airport (SFO)

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Find available prices by choosing your travel dates.

Cheap Flights from Singapore to San Francisco (SIN-SFO)

Prices were available within the past 7 days and start at $418 for one-way flights and $669 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Jun 14 - Sat, Aug 9
SIN
Singapore
SFO
San Francisco
$669 Roundtrip, found 1 day ago
$669
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jun 14 from Singapore to San Francisco, returning Sat, Aug 9, priced at $669 found 1 day ago
Asiana Airlines
Tue, Jun 3 - Sun, Jul 6
SIN
Singapore
SFO
San Francisco
$713 Roundtrip, found 6 days ago
$713
Roundtrip
found 6 days ago
Select Asiana Airlines flight, departing Tue, Jun 3 from Singapore to San Francisco, returning Sun, Jul 6, priced at $713 found 6 days ago
Air Canada
Tue, Oct 7 - Tue, Oct 14
SIN
Singapore
SFO
San Francisco
$764 Roundtrip, just found
$764
Roundtrip
just found
Select Air Canada flight, departing Tue, Oct 7 from Singapore to San Francisco, returning Tue, Oct 14, priced at $764 just found
STARLUX Airlines
Tue, Nov 4 - Wed, Nov 19
SIN
Singapore
SFO
San Francisco
$818 Roundtrip, found 5 days ago
$818
Roundtrip
found 5 days ago
Select STARLUX Airlines flight, departing Tue, Nov 4 from Singapore to San Francisco, returning Wed, Nov 19, priced at $818 found 5 days ago
EVA Airways
Sat, Jun 14 - Sat, Jul 12
SIN
Singapore
SFO
San Francisco
$856 Roundtrip, found 5 days ago
$856
Roundtrip
found 5 days ago
Select EVA Airways flight, departing Sat, Jun 14 from Singapore to San Francisco, returning Sat, Jul 12, priced at $856 found 5 days ago
China Airlines
Sat, Jun 14 - Sat, Jul 12
SIN
Singapore
SFO
San Francisco
$857 Roundtrip, found 5 days ago
$857
Roundtrip
found 5 days ago
Select China Airlines flight, departing Sat, Jun 14 from Singapore to San Francisco, returning Sat, Jul 12, priced at $857 found 5 days ago
Korean Air
Tue, Nov 4 - Wed, Nov 19
SIN
Singapore
SFO
San Francisco
$886 Roundtrip, found 5 days ago
$886
Roundtrip
found 5 days ago
Select Korean Air flight, departing Tue, Nov 4 from Singapore to San Francisco, returning Wed, Nov 19, priced at $886 found 5 days ago
Delta
Sun, Nov 23 - Sun, Nov 30
SIN
Singapore
SFO
San Francisco
$894 Roundtrip, found 6 days ago
$894
Roundtrip
found 6 days ago
Select Delta flight, departing Sun, Nov 23 from Singapore to San Francisco, returning Sun, Nov 30, priced at $894 found 6 days ago
China Eastern Airlines
Mon, May 19 - Mon, May 26
SIN
Singapore
SFO
San Francisco
$913 Roundtrip, found 1 day ago
$913
Roundtrip
found 1 day ago
Select China Eastern Airlines flight, departing Mon, May 19 from Singapore to San Francisco, returning Mon, May 26, priced at $913 found 1 day ago
Cathay Pacific
Sat, Jun 14 - Sat, Jul 12
SIN
Singapore
SFO
San Francisco
$921 Roundtrip, found 5 days ago
$921
Roundtrip
found 5 days ago
Select Cathay Pacific flight, departing Sat, Jun 14 from Singapore to San Francisco, returning Sat, Jul 12, priced at $921 found 5 days ago
Flights from Singapore (SIN) to San Francisco (SFO)
Origin airport
Changi
Destination airport
San Francisco Intl.
Airlines serving
Air Canada, Air India, All Nippon Airways, Asiana Airlines, British Airways, Cathay Pacific, China Airlines, China Southern Airlines, EVA Airways, Emirates, Japan Airlines, Korean Air, Lufthansa, Malaysia Airlines, Philippine Airlines, Qatar Airways, STARLUX Airlines, Singapore Airlines, Swiss International Air Lines, Turkish Airlines
Roundtrip price
$669
Distance
8438 mi

Singapore to San Francisco Flights

The cheapest times to fly from Singapore to San Francisco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Singapore to San Francisco are during the month of June. You can find some of the cheapest flights from Singapore to San Francisco with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Singapore to San Francisco

Sunday is one of the best days to book for cheap flights from Singapore to San Francisco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Singapore to San Francisco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Singapore to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $418 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Singapore to San Francisco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Singapore to San Francisco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Changi Airport (SIN) to San Francisco Intl. Airport (SFO) cost?
Find affordable return tickets from Changi Airport (SIN) to San Francisco Intl. Airport (SFO) starting from $821. Grab a seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving SIN on May 15 2025 and touching down at SFO. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from SIN to SFO?
The cheapest flights from SIN to SFO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Changi Airport (SIN) to San Francisco Intl. Airport (SFO)?
When setting off from Changi Airport (SIN), you can hop on a direct flight to San Francisco Intl. Airport (SFO) with United Airlines.
What is the cheapest airline that flies from SIN to SFO?
With fares starting at $417 for a one-way flight from SIN to SFO, United is currently the cheapest carrier for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SIN on June 14 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Changi Airport (SIN) to San Francisco Intl. Airport (SFO)?
With, on average, 4 direct flights departing from Changi Airport (SIN) to San Francisco Intl. Airport (SFO) each day, you’ll be off on your next adventure in no time.
What are the most popular departure times for flights from Changi Airport (SIN) to San Francisco Intl. Airport (SFO)?
The 9 AM departures from SIN to SFO are typically the busiest. Greater demand means you’ll likely pay more for these departures. If you want to save money, pick a less crowded time to fly.
What day of the week has the most flights from SIN to SFO?
Thursday has the most flights from Changi Airport (SIN) to San Francisco Intl. Airport (SFO). Consider taking off on this day and you’ll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Changi Airport (SIN) to San Francisco Intl. Airport (SFO)?
Take the earliest flight at around 9:15AM UTC+8, departing from Changi Airport (SIN). You’ll be flying for roughly 14h 35m, arriving at San Francisco Intl. Airport (SFO) at approximately 7:50AM UTC-8.
How long does it take to fly from Changi Airport (SIN) to San Francisco Intl. Airport (SFO)?
It takes about 14 hours and 43 minutes to cover the 8,400 mi from SIN to SFO.
What is the best time to fly from Changi Airport (SIN) to San Francisco Intl. Airport (SFO)?
To avoid possible delays on the Changi Airport (SIN) to San Francisco Intl. Airport (SFO) route, aim to fly before 3 PM. Flights after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for San Francisco from Changi Airport (SIN)?
If you’re taking a direct flight from Changi Airport (SIN) to San Francisco, San Francisco Intl. Airport (SFO) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Changi Airport (SIN) to San Francisco Intl. Airport (SFO) last-minute?
Booking your flight from SIN to SFO right before your getaway is generally more expensive. However, if there’s some wiggle room with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a SIN to SFO flight and hotel package?
Compared with arranging flights and hotels separately, booking a SIN to SFO flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place will take the hassle out of travel planning. Just secure your flights and choose from our extensive range of stays, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Changi Airport (SIN) to San Francisco Intl. Airport (SFO)?
Typically, it’s possible to reschedule or cancel your SIN to SFO flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and whether any costs are involved. You’ll also find more details on our Customer Service portal.

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*Available to One Key members.