SFO - SIN

S$ 477 Find Cheap Flights from San Francisco to Singapore – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Singapore departing on 19-8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
S$ 893
Typical prices: S$ 889-S$ 1,209
United Airlines
Wed 28-10Mon 23-11
SFO - SIN • Direct
Cheapest one-way flight
S$ 477
Typical prices: S$ 436-S$ 585
United Airlines
Wed 19-8
SFO - SIN • Direct
Top airlines
Cheapest • from S$ 893 (return)
Best reviews • 8.2 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with Singapore Airlines and United Airlines. Average duration is 16h 20m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 8 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Francisco to Singapore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Francisco to Singapore

Wed, 28 Oct - Mon, 23 Nov
United Airlines Logo
11:40 - 20:15
SFO
-
SIN
17h 35mdirect
United Airlines Logo
10:10 - 09:15
SIN
-
SFO
15h 05mdirect
S$ 893United Airlines
Tue, 27 Oct - Sun, 22 Nov
United Airlines Logo
11:40 - 20:15
SFO
-
SIN
17h 35mdirect
United Airlines Logo
10:10 - 09:15
SIN
-
SFO
15h 05mdirect
S$ 893United Airlines
Mon, 19 Oct - Sat, 24 Oct
Singapore Airlines Logo
11:45 - 19:10
SFO
-
SIN
16h 25mdirect
Singapore Airlines Logo
09:05 - 09:50
SIN
-
SFO
15h 45mdirect
S$ 893Singapore Airlines
Thu, 8 Oct - Mon, 12 Oct
Singapore Airlines Logo
11:45 - 19:10
SFO
-
SIN
16h 25mdirect
Singapore Airlines Logo
09:05 - 09:50
SIN
-
SFO
15h 45mdirect
S$ 893Singapore Airlines
Wed, 9 Sep - Thu, 17 Sep
ANA Logo
01:10 - 17:15
SFO
-
SIN
25h 05m
1 stop
ANA Logo
11:05 - 16:30
SIN
-
SFO
20h 25m
1 stop
S$ 893ANA
Sat, 5 Sep - Tue, 15 Sep
Air China Logo
13:00 - 16:25
SFO
-
SIN
36h 25m
1 stop
Air China Logo
23:25 - 10:30
SIN
-
SFO
26h 05m
1 stop
S$ 893Air China
Thu, 17 Sep - Thu, 8 Oct
United Airlines Logo
22:40 - 06:15
SFO
-
SIN
16h 35mdirect
United Airlines Logo
08:45 - 09:15
SIN
-
SFO
15h 30mdirect
S$ 893United Airlines
Tue, 17 Nov - Thu, 3 Dec
United Airlines Logo
10:40 - 20:15
SFO
-
SIN
17h 35mdirect
United Airlines Logo
10:10 - 09:15
SIN
-
SFO
15h 05mdirect
S$ 893United Airlines
Tue, 8 Sep - Wed, 16 Sep
ANA Logo
01:10 - 17:15
SFO
-
SIN
25h 05m
1 stop
ANA Logo
06:15 - 10:30
SIN
-
SFO
19h 15m
1 stop
S$ 894ANA
Tue, 26 Jan - Wed, 10 Feb
Singapore Airlines Logo
09:40 - 19:05
SFO
-
SIN
17h 25mdirect
Singapore Airlines Logo
09:15 - 07:50
SIN
-
SFO
14h 35mdirect
S$ 898Singapore Airlines
Booking Insights

KAYAK's insights & trends for San Francisco to Singapore flights

Get data-powered insights and trends into flights from San Francisco to Singapore to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from San Francisco to Singapore?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to Singapore departing in August.

Flight prices are typical for this route right now.

Flights to Singapore from San Francisco usually cost between S$ 785 and S$ 1,125 in August.
The lowest price found in the past 5 days was S$ 893 on United Airlines (17 Aug–7 Sept).

What’s the cheapest day of the week to fly from San Francisco to Singapore?

The average price of all round-trip flights from San Francisco to Singapore clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Singapore on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from San Francisco to Singapore. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from San Francisco to Singapore?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Singapore, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Singapore is September, where tickets cost S$ 892 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is S$ 1,867 and S$ 1,737 respectively.

Can I save money by flying with a stopover from San Francisco to Singapore?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of S$ 942, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from San Francisco to Singapore?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Singapore, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Singapore, you should book around 8 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low season

July

Cheapest flight

S$ 477
Best time to beat the crowds but there is an average 46% increase in price.
Most popular time to fly (57% more expensive on average)
Flight from San Francisco to Singapore

When to book flights from San Francisco to Singapore

Are your dates flexible? Find out the best times to travel from San Francisco to Singapore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from San Francisco to Singapore: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from San Francisco to Singapore 
Verified travelerFlew with Singapore Airlines
SFO
-
SIN
Jun 2026
Always book directly with the airlines and avoid aggregators and agents
ClaudiaFlew with United Airlines
SFO
-
SIN
Jun 2026
Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future
Verified travelerFlew with Singapore Airlines
SFO
-
SIN
Jan 2024
The Singapore Changi airport if huge. After getting of the aircraft, the walk to immigration control was long. Once you get to the control area, the process was quick and easy.

FAQs for booking flights from San Francisco to Singapore

  • Are there any nonstop flights between San Francisco and Changi International Airport?

    There is a nonstop flight between these two airports that Singapore airlines offers to travelers on this route.

  • What is a good choice for a hotel that has a location near Changi International Airport?

    There are actually a couple of hotel choices that have locations right on the airport property. The Yotelair Singapore Changi Airport and the Ambassador Transit Lounge Singapore T2 can be found at the airport for your convenience.

  • Are there public transportation options to get from Changi Airport to the center of the city?

    There are several public buses that can take you from the airport to a number of locations throughout the city. Bus numbers 24, 27, 34, 36, 53, 110, and 858 can be found operating from Terminals 1, 2, and 3. Bus routes 24, 34, 36, and 110 also make stops at Terminal 4. Fares range from around S$1 ($0.75) to S$2 ($1.50) depending on the distance you are traveling.

  • Is there a good public transportation option to get from downtown San Francisco to San Francisco International Airport?

    Perhaps the best way to get to the airport is through the city's highly efficient Bay Area Rapid Transit (BART) Rapid Rail service. The train station sits on the Departures Level of the International Terminal and the fare to ride the train is around $10.

  • What is the cheapest flight from San Francisco to Singapore?

    In the last 5 days, the lowest price for a flight from San Francisco to Singapore was S$ 477 for a one-way ticket and S$ 893 for a return.

  • Which airports will I be using when flying from San Francisco to Singapore?

    When flying out of San Francisco you will be using San Francisco. You will be landing at Singapore, also known as Singapore Changi.

  • Which airlines offer Wi-Fi service onboard planes from San Francisco to Singapore?

    Only Asiana Airlines offers inflight Wi-Fi service on the San Francisco to Singapore flight route.

  • Which aircraft models fly most regularly from San Francisco to Singapore?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the San Francisco to Singapore flight route.

  • Which airline alliances offer flights from San Francisco to Singapore?

    Star Alliance is the only airline alliance operating flights between San Francisco and Singapore.

  • On which days can I fly direct from San Francisco to Singapore?

    There are direct flights from San Francisco to Singapore on a daily basis.

  • Which is the best airline for flights from San Francisco to Singapore, Singapore Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Francisco to Singapore are Singapore Airlines and United Airlines. With an average price for the route of S$ 1,178 and an overall rating of 8.2, Singapore Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of S$ 1,606 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Francisco to Singapore?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Singapore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Singapore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Singapore from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Singapore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Singapore with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Singapore?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Singapore from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Francisco to Singapore

  • Looking for a cheap flight? 25% of our users found flights on this route for S$ 398 or less one-way and S$ 914 or less round-trip.
  • An amazing feature of the Changi Airport that you'll notice upon your arrival is the Arrival Garden that's located on Level One at Terminal 1. This garden has all manner of natural greenery and one of these exhibits actually emulates a dragonfly habitat.
  • If you plan on driving yourself to San Francisco International Airport before your flight to Singapore, you'll be happy to know that the airport offers 2 international garages where you can park your car. The rate to park in the garage is around $36 per day.
  • If you have just arrived in Singapore and want to store some of your bags, the airport offers a baggage storage solution. The rates vary from around S$7 ($5) to S$24 ($18) per item per day based on the item size. The service is available 24/7.
  • If you are bringing the kids along on your trip to Singapore, San Francisco International Airport has 3 different Kids'Spot locations that feature interactive exhibits for children to explore while waiting for their flight. These areas sit in Terminal 3 by both the E and F gates as well as in Terminal 2 by the D gates.
  • The Changi Airport offers several amenities for travelers with disabilities. These include an accessible changing room that has a location in Terminal 3, Basement 2, and hearing enhancement systems found at the information counters located in the airport.
  • If you're looking for something to do before your flight to Singapore, San Francisco International Airport offers several SFO Museum Exhibits that present a number of different works that highlight art, culture, science, and historical topics. There are two of these exhibits in both Terminal 2 and Terminal 3.

Prefer to fly direct from San Francisco to Singapore Changi?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop from San Francisco to Singapore Changi.
Find which airlines fly direct from San Francisco Airport to Singapore Changi Airport, which days they fly and book direct flights.

Direct departures

San Francisco to Singapore Changi

Monday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Tuesday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Wednesday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Thursday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Friday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Saturday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Sunday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

See more direct flights

Direct returns

Singapore Changi to San Francisco

Monday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Tuesday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Wednesday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Thursday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Friday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Saturday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

Sunday

Singapore Airlines,United Airlines

Singapore Airlines,United Airlines

See more direct flights

Reviews of the top airlines flying from San Francisco to Singapore

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Singapore. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Singapore? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1584 reviews
8.3Boarding
8.0Comfort
8.6Crew
7.8Food
8.1Entertainment
Airline reviews

I had selected seats together for my family of three when I first booked my tickets in February. However, I realized only when I checked in at the airport that the seats I had selected were no longer assigned to us and we were completely scattered across three different middle seats instead of being seated together! After requesting the Singapore staff to have us seated together on a full flight, they managed to find something but it was right next to the rest rooms and the whole journey of 15+ hours was really unpleasant. They said that the seat selection isn't locked and the airline can reallocate the seats anytime. No one ever told us this and it was a terribly unpleasant surprise. Will avoid Kayak/underpricer and Singapore in future

2.0 MediocreAnonymous, Jun 2026
SFO - SIN
Read more Singapore Airlines reviews

I had selected seats together for my family of three when I first booked my tickets in February. However, I realized only when I checked in at the airport that the seats I had selected were no longer assigned to us and we were completely scattered across three different middle seats instead of being seated together! After requesting the Singapore staff to have us seated together on a full flight, they managed to find something but it was right next to the rest rooms and the whole journey of 15+ hours was really unpleasant. They said that the seat selection isn't locked and the airline can reallocate the seats anytime. No one ever told us this and it was a terribly unpleasant surprise. Will avoid Kayak/underpricer and Singapore in future

Very concerned with guest comforts going out of their way to accommodate special dietary needs when the guests hadn’t pre-ordered.

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

The food options and quality could use some more excitement and variety.

On time boarding I would like to see ground hostess to help transit customers to direct them to the right terminal and boarding gate. Last night, all the transit customers on SQ484 arriving Singapore had to merry go round to look for terminal and boarding gate to board SQ128 transit to KL Malaysia. We went to Terminal 3 taking the Skytrain to T3 and back to T3 to get out to look for different Skytrain to T2. On arrival t2, we had to go round to ask which boarding gate to KL. We only had 5 minutes to make to the boarding time at 6:55pm but we already spent more than 30 minutes running around to find the boarding gate. We were late at the boarding gate.

Leg room and flight sound insulation is very bad. They broke 3 of my bags with bad handling

I commend the flight attendants on our SFO-SIN flight who went above and beyond to provide us with extra snacks and food. This type of service makes the flight experience personal and awesome.

People were so nice! Economy seats were small and cramped feeling for me. I’m slender and 6 feet tall

The singapore airline now compared before covid, I like the service before covid. SQ was the best of all airlines but now I am going to look for different airline if I am travelling in asia.

The pilot was late so we didn’t take off til almost 2 hours late.

It was a short, comfortable flight. It did leave an hour late due to the pilot having to be replaced (family emergency) but that didn’t inconvenience myself & my friend. The situation was explained, eventually.

Excellent communication from the staff. We actually arrived early. Very friendly and professional staff.

No extra snacks were available. Meals quality is terrible. Crew was not friendly.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

It was perfect! United Airlines staff was extremely caring, super friendly and professional

United has maintenance issues and can then never recover. No operations ability and simple issues always turn into multiple hours long cascading delays. Worst airline on earth.

Food is very bad and entertint not too many options ... flight attendet service is not good

For a 17 hour flight, they kept us well feed. The music selection could be better curated. The entertainment selection was about what is expected. The crew was fantastic.

I forgot to pre order gluten free on a 16 hour flight and I am pretty sure the crew raided their own lunches and first class to keep me fed.

Everything you need to know for your flight from San Francisco to Singapore

Information on your arrival and departure airports