UA's Polaris Business Class includes lie-flat seats and Saks Fifth Avenue bedding.
UA's Premium Plus offers extra legroom, upgraded meals, and priority check-in on international routes.
Round-trip from | $605 (Ovago) |
---|---|
One-way from | $244 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $1,214 |
Good round-trip deal | $617 or less |
Good one-way deal | $313 or less |
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Thu 8/28
11:55 pm-1:20 pm
1 stop22h 25m
Singapore Changi
Sun 9/7
10:25 am-8:50 pm
1 stop25h 25m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Thu 8/28
8:00 pm-6:30 pm
2 stops31h 30m
Singapore Changi
Sun 9/7
8:45 am-7:00 am
1 stop37h 15m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Thu 8/28
8:00 pm-9:15 am
2 stops46h 15m
Singapore Changi
Sat 9/6
11:00 pm-7:00 am
1 stop47h 00m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Thu 8/28
8:00 pm-9:15 am
2 stops46h 15m
Singapore Changi
Mon 9/8
11:00 pm-7:00 am
1 stop47h 00m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Wed 8/27
8:00 pm-6:30 pm
2 stops31h 30m
Singapore Changi
Mon 9/8
8:30 pm-7:00 am
1 stop25h 30m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Wed 8/27
8:00 pm-6:30 pm
2 stops31h 30m
Singapore Changi
Sat 9/6
11:00 pm-7:00 am
1 stop47h 00m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Tue 9/30
10:40 pm-6:15 am
Nonstop16h 35m
Singapore Changi
Thu 10/9
8:45 am-9:15 am
Nonstop15h 30m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Fri 9/19
10:45 am-6:25 pm
Nonstop16h 40m
Singapore Changi
Thu 10/2
8:40 pm-9:10 pm
Nonstop15h 30m
San FranciscoSingapore
SFO - SIN
SFOSIN
San Francisco
Tue 9/30
10:40 pm-6:15 am
Nonstop16h 35m
Singapore Changi
Tue 10/7
8:40 pm-9:10 pm
Nonstop15h 30m
SeattleSingapore
SEA - SIN
SEASIN
Seattle/Tacoma Intl
Fri 10/17
6:59 pm-7:50 am
1 stop21h 51m
Singapore Changi
Sat 10/25
9:00 am-8:45 am
Nonstop14h 45m
Currently, October is the cheapest month in which you can book a flight from USA to Singapore (average of $991). Flying from USA to Singapore in December is currently the most expensive (average of $1,684). 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 USA to Singapore as you normally would.
The most flights from US0 to SIN are scheduled on a Wednesday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
Crew
Overall
Boarding
Entertainment
Comfort
Food
Reviews
Anonymous,Jul 2025
DAD - SIN
Crew
Overall
Boarding
Entertainment
Comfort
Food
Reviews
Anonymous,Jul 2025
DAD - SIN
Crew
Overall
Boarding
Entertainment
Comfort
Food
Reviews
Anonymous,Jul 2025
DAD - SIN
Crew
Overall
Boarding
Entertainment
Comfort
Food
Reviews
Anonymous,Jul 2025
DAD - SIN
Crew
Overall
Boarding
Entertainment
Comfort
Food
Reviews
Anonymous,Jul 2025
DAD - SIN
Crew
Overall
Boarding
Entertainment
Comfort
Food
Reviews
Anonymous,Jul 2025
DAD - SIN
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$490 | Average$1,306 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$520 | Average$1,263 | FlexibilityNo cancel fee | On-time70% | |
Cheapest$582 | Average$850 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$588 | Average$1,283 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$598 | Average$744 | FlexibilityNo cancel fee | On-time49% | |
Cheapest$654 | Average$915 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$660 | Average$1,134 | FlexibilityNo cancel fee | On-time80% | |
Cheapest$667 | Average$786 | FlexibilityNo cancel fee | On-time60% | |
Cheapest$684 | Average$864 | FlexibilityNo cancel fee | On-time81% | |
Cheapest$700 | Average$891 | FlexibilityNo cancel fee | On-time79% |