For early check-in, use Jewel's desks up to 24 hours before your flight, avoiding queues at SIN.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $724 (oojo) |
One-way from | $425 (SmartFares) |
Popular in | January |
Cheapest in | October |
Average price | $905 |
Good one-way deal | $823 or less |
Fly from
Fly to
Route
Depart
Return
Price
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
sáb. 3/14
2:00 am-7:10 pm
1 stop32h 10m
Seattle/Tacoma Intl
sáb. 3/28
1:10 am-12:35 am
1 stop32h 25m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
mar. 2/10
1:35 am-9:00 am
1 stop23h 25m
Seattle/Tacoma Intl
jue. 2/26
11:00 am-12:10 am
1 stop21h 10m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
dom. 1/25
2:00 am-6:10 pm
1 stop32h 10m
Seattle/Tacoma Intl
dom. 2/1
12:10 am-3:30 pm
1 stop23h 20m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
dom. 1/25
1:35 am-9:00 am
1 stop23h 25m
Seattle/Tacoma Intl
lun. 2/2
11:00 am-8:25 pm
1 stop41h 25m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
sáb. 3/21
10:40 am-2:20 pm
1 stop18h 40m
Seattle/Tacoma Intl
mar. 3/31
12:45 pm-5:00 am
1 stop25h 15m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
vie. 3/20
1:35 am-10:00 am
1 stop23h 25m
Seattle/Tacoma Intl
mar. 3/31
12:50 pm-11:40 pm
1 stop19h 50m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
mar. 2/10
1:35 am-9:00 am
1 stop23h 25m
Seattle/Tacoma Intl
jue. 2/26
8:45 am-5:45 pm
Nonstop17h 00m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
dom. 5/31
1:45 pm-7:30 pm
1 stop20h 45m
Seattle/Tacoma Intl
jue. 6/18
1:10 am-12:35 pm
1 stop20h 25m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
lun. 4/13
2:00 pm-4:10 pm
1 stop17h 10m
Seattle/Tacoma Intl
mié. 5/13
1:15 am-12:40 pm
1 stop20h 25m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
sáb. 1/24
2:25 pm-6:10 pm
1 stop19h 45m
Seattle/Tacoma Intl
sáb. 1/31
5:59 pm-1:05 pm
2 stops27h 06m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
The price you pay for your flight from Singapore to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 25 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, October is the cheapest month in which you can book a flight from Singapore to Seattle (average of $592). Flying from Singapore to Seattle in January is currently the most expensive (average of $891). 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.
One of the essential ways to save on airfare from Singapore to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 26% on airfare.
About 21% of weekly flights between Singapore and Seattle have experienced delays in the past year, with the average delay time being 99 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
Friday tends to have the lowest number of delays on this route, whereas Thursday 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 21% of flights being delayed.
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Chad,Nov 2025
TPE - SEA
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Chad,Nov 2025
TPE - SEA
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Chad,Nov 2025
TPE - SEA
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Chad,Nov 2025
TPE - SEA
Entertainment
Crew
Boarding
Overall
Food
Comfort
Reviews
Chad,Nov 2025
TPE - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$761 | Average$802 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$779 | Average$850 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$785 | Average$836 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$833 | Average$1,158 | FlexibilityNo cancel fee | On-time81% |