
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $617 (oojo) |
One-way from | $312 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $796 |
Good round-trip deal | $626 or less |
Good one-way deal | $304 or less |
Fly from
Fly to
Route
Depart
Return
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Mon 4/6
7:10 pm-6:40 am
2 stops44h 30m
Singapore Changi
Sat 5/16
8:35 pm-8:45 pm
Nonstop15h 10m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Wed 4/22
10:25 am-6:35 pm
Nonstop17h 10m
Singapore Changi
Wed 4/29
8:35 pm-8:45 pm
Nonstop15h 10m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Wed 5/13
10:40 pm-6:45 am
Nonstop17h 05m
Singapore Changi
Mon 5/25
8:35 pm-9:20 pm
Nonstop15h 45m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Fri 4/17
10:30 am-12:10 pm
1 stop34h 40m
Singapore Changi
Sun 4/26
11:00 pm-7:00 am
1 stop47h 00m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Tue 4/7
7:29 pm-11:55 pm
2 stops37h 26m
Singapore Changi
Tue 4/21
10:00 pm-7:20 pm
2 stops36h 20m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Fri 4/24
10:30 am-7:25 am
2 stops29h 55m
Singapore Changi
Sat 5/2
1:10 pm-7:00 am
1 stop32h 50m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Thu 5/14
12:00 pm-1:30 am
3 stops46h 30m
Singapore Changi
Fri 5/22
12:55 am-9:05 am
1 stop23h 10m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Sun 4/5
10:40 pm-6:45 am
Nonstop17h 05m
Singapore Changi
Wed 4/15
11:05 am-3:10 pm
2 stops43h 05m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Sun 4/5
10:25 am-6:35 pm
Nonstop17h 10m
Singapore Changi
Sat 4/11
9:00 am-9:10 am
Nonstop15h 10m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Fri 4/3
10:30 am-9:45 pm
1 stop44h 15m
Singapore Changi
Mon 4/13
1:10 pm-7:00 am
1 stop32h 50m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
The best time to book flights from San Francisco to Singapore is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, August is the cheapest month in which you can book a flight from San Francisco to Singapore (average of $523). Flying from San Francisco to Singapore in June is currently the most expensive (average of $759). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Singapore as you normally would.
About 17% of weekly flights between San Francisco and Singapore have experienced delays in the past year, with the average delay time being 115 minutes.
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
Monday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Singapore Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.
Incheon (ICN) – chosen by Cheapflights users on 50% of 1-stop itineraries from San Francisco to Singapore on Cheapflights.
Incheon (ICN) is the most affordable 1-stop option, with an average round-trip price of $568.
Flights via Hong Kong (HKG) have the shortest average one-way travel time for 1-stop routes: 20h 25m.
Flights via Hong Kong (HKG) offer the fastest connection on this route, with an average layover time of 2h 55m.
Crew
Overall
Food
Boarding
Comfort
Entertainment
Reviews
Anonymous,Feb 2026
SAI - SIN
Crew
Overall
Food
Boarding
Comfort
Entertainment
Reviews
Anonymous,Feb 2026
SAI - SIN
Crew
Overall
Food
Boarding
Comfort
Entertainment
Reviews
Anonymous,Feb 2026
SAI - SIN
Crew
Overall
Food
Boarding
Comfort
Entertainment
Reviews
Anonymous,Feb 2026
SAI - SIN
Crew
Overall
Food
Boarding
Comfort
Entertainment
Reviews
Anonymous,Feb 2026
SAI - SIN
Crew
Overall
Food
Boarding
Comfort
Entertainment
Reviews
Anonymous,Feb 2026
SAI - SIN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$466 | Average$2,216 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$534 | Average$758 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$579 | Average$661 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$602 | Average$653 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$603 | Average$710 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$641 | Average$992 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$650 | Average$698 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$652 | Average$878 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$688 | Average$734 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$706 | Average$888 | FlexibilityNo cancel fee | On-time67% |