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 | $737 (Gotogate) |
One-way from | $407 (SmartFares) |
Popular in | June |
Cheapest in | September |
Average price | $926 |
Good one-way deal | $823 or less |
Fly from
Fly to
Route
Depart
Return
Price
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Fri 1/16
10:10 am-3:44 pm
1 stop21h 34m
Seattle/Tacoma Intl
Fri 1/23
12:35 pm-8:15 pm
1 stop39h 40m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Fri 2/13
10:20 pm-9:01 pm
1 stop38h 41m
Seattle/Tacoma Intl
Fri 2/20
12:37 pm-8:15 pm
1 stop39h 38m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Sat 3/21
2:25 pm-7:10 pm
1 stop19h 45m
Seattle/Tacoma Intl
Mon 3/30
1:10 am-12:35 pm
1 stop20h 25m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Tue 3/24
10:10 am-4:14 pm
1 stop21h 04m
Seattle/Tacoma Intl
Fri 4/17
6:57 am-6:25 pm
1 stop20h 28m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Wed 3/25
10:10 am-11:24 am
1 stop40h 14m
Seattle/Tacoma Intl
Sat 4/18
6:57 am-6:25 pm
1 stop20h 28m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Tue 3/24
10:20 pm-11:24 am
1 stop28h 04m
Seattle/Tacoma Intl
Thu 4/23
5:00 am-6:25 pm
1 stop22h 25m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Thu 4/9
9:00 am-6:33 pm
1 stop24h 33m
Seattle/Tacoma Intl
Sun 4/19
6:57 am-6:25 pm
1 stop20h 28m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Tue 3/24
10:20 pm-4:14 pm
1 stop32h 54m
Seattle/Tacoma Intl
Wed 4/15
5:00 am-6:25 pm
1 stop22h 25m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Thu 3/26
10:10 am-4:14 pm
1 stop21h 04m
Seattle/Tacoma Intl
Sat 4/18
6:57 am-6:25 pm
1 stop20h 28m
SingaporeSeattle
SIN - SEA
SINSEA
Singapore Changi
Tue 12/16
10:20 pm-3:29 pm
1 stop33h 09m
Seattle/Tacoma Intl
Sun 1/11
12:35 pm-8:00 am
1 stop27h 25m
| 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 5 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 $609). Flying from Singapore to Seattle in January is currently the most expensive (average of $884). 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 28% on airfare.
About 20% 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 20% of flights being delayed.
Boarding
Overall
Crew
Comfort
Food
Entertainment
Reviews
Chad,Nov 2025
TPE - SEA
Boarding
Overall
Crew
Comfort
Food
Entertainment
Reviews
Chad,Nov 2025
TPE - SEA
Boarding
Overall
Crew
Comfort
Food
Entertainment
Reviews
Chad,Nov 2025
TPE - SEA
Boarding
Overall
Crew
Comfort
Food
Entertainment
Reviews
Chad,Nov 2025
TPE - SEA
Boarding
Overall
Crew
Comfort
Food
Entertainment
Reviews
Chad,Nov 2025
TPE - SEA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$761 | Average$802 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$779 | Average$864 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$785 | Average$836 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$833 | Average$1,176 | FlexibilityNo cancel fee | On-time81% |