$476 Cheap United flights from San Francisco to Singapore (SFO to SIN)

Find The Best Day To Fly from San Francisco to Singapore

Amazing United SFO to SIN Flight Deals

The cheapest flights to Changi found within the past 7 days were $815 round trip and $476 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Oct 20 - Mon, Oct 27
SFO
San Francisco
SIN
Singapore
$815 Roundtrip, found 6 days ago
$815
Roundtrip
found 6 days ago
Select United flight, departing Mon, Oct 20 from San Francisco to Singapore, returning Mon, Oct 27, priced at $815 found 6 days ago

SIN From SFO Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
QT Singapore

QT Singapore

5 out of 5
per person
Jun 15 - Jun 21
found 12 hours ago
Roundtrip non-stop flight included
San Francisco (SFO) to Singapore (SIN)
ANDAZ SINGAPORE, BY HYATT

ANDAZ SINGAPORE, BY HYATT

5 out of 5
per person
Jun 15 - Jun 21
found 12 hours ago
Roundtrip non-stop flight included
San Francisco (SFO) to Singapore (SIN)
Mandarin Oriental, Singapore

Mandarin Oriental, Singapore

5 out of 5
per person
Jun 15 - Jun 21
found 12 hours ago
Roundtrip non-stop flight included
San Francisco (SFO) to Singapore (SIN)
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Frequently asked questions

Can I catch a flight from San Francisco Intl. Airport (SFO) to Changi Airport (SIN) right now?
It’s always prudent to learn about any quarantine requirements and travel advice reports in effect in your destination city. Ensure you go to our Covid-19 Travel Advisor for up-to-date information on flying to Changi Airport.
What terminal is United Airlines at San Francisco Airport?
At SFO, United Airlines flights to SIN typically head off from terminal I. Curious to know exactly which terminal you’ll be disembarking at? It’ll likely be terminal 3.
Are there United Airlines non-stop flights from SFO to SIN?
Yes. Secure your seat on a nonstop flight with United Airlines from San Francisco Airport to Singapore Airport, and you won’t have to worry about long stopovers or catching a connecting flight.
How long is a United Airlines flight from SFO to SIN?
Life is one long journey — and so is your trip from SFO to Singapore Airport with United Airlines. Taking roughly 18 hours and 3 minutes, make sure you bring the basics like a neck pillow, a warm sweater and your face wash.
What type of aircraft does United Airlines fly from SFO to SIN?
Pull your seat belt tight and take a ride on the Boeing 787-9. This airplane is typically used on the SFO to SIN route when flying with United Airlines.
How many direct and indirect flights does United Airlines fly from SFO to SIN?
No fewer than 10 United Airlines flights operate on the route between SFO and SIN per week.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Changi Airport (SIN), please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from San Francisco SFO to Singapore SIN 

To find the best deals on flights to San Francisco from Singapore with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from San Francisco SFO to Singapore SIN with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $815 to $815, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from San Francisco SFO to Singapore SIN 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from San Francisco to Singapore costs from $476. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Singapore SIN from  San Francisco SFO with United 

To find a cheap United flight from San Francisco SFO to Singapore SIN, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from San Francisco SFO to Singapore SIN 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as October, or if you book a flight with a stopover. 

 

Find nonstop flights from San Francisco SFO to Singapore SIN with United 

If you’re keen to be on Singapore soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from San Francisco SFO to Singapore SIN 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Singapore SIN from  San Francisco SFO with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to Singapore

Crowne Plaza Changi Airport by IHG
Crowne Plaza Changi Airport by IHG
5 out of 5
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This hotel features an outdoor pool, a gym, and a restaurant. Traveling on business? Take advantage of the business center and free WiFi in public areas. There's ...
9.2/10 Wonderful! (2,000 reviews)
"My stay in Crown Plaza Changi Airport far exceeded my expectation in"

Reviewed on May 4, 2025

Crowne Plaza Changi Airport by IHG
YOTELAIR Singapore Changi Airport
YOTELAIR Singapore Changi Airport
3.5 out of 5
78 Airport Boulevard, Changi, #04-280, Singapore
A 24-hour gym is featured at this hotel, along with free WiFi in public areas and dry cleaning. A safe deposit box is provided and the front desk is staffed ...
7.8/10 Good! (1,007 reviews)
"The smaller room suits a single guest and a short stay. Two suitcases would not have worked. Room was clean the bed very comfortable .. it suited me for the short layover in Singapore and gave me the opportunity to explore Changi and all it has to offer. Would book to stay again"

Reviewed on May 2, 2025

YOTELAIR Singapore Changi Airport
D'Resort at Downtown East
D'Resort at Downtown East
3.5 out of 5
1 Pasir Ris Close, Singapore
This hotel features a coffee shop, barbecue grills, and self parking. WiFi in public areas is free. Traveling for business? Take advantage of the express check-out, ...
8/10 Very Good! (1,006 reviews)
"We stayed here to rest for a connecting flight as airport accommodation was booked out. It was comfortable to recharge and rest, shower had good water pressure. 24 hour staff were helpful, had some vending machines on site for drinks. Would stay again on next stay to enjoy the water park and ..."

Reviewed on May 1, 2025

D'Resort at Downtown East
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.