SEA to SIN from $405 in economy – flightdeals.net

Home Premium Fare Deals About

United Airlines

UAUnited Airlines

One Way•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Singapore Changi Airport

Singapore, Singapore

$573 USD

-29%$405 USD

Verified about 3 hours ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31 1 2 3 4 5 6 7 8 9 10 11 12 13$405 14$405 15$405 16$405 17$405 18$1,280 19$417 20$405 21$405 22$405 23$405 24$405 25$690 26$648 27$405 28$405 29$405 30$405 1$811 2$942 3$1,266 4$619

Good Availability

54% of dates checked are available within 10% of the lowest price

Thursday, September 10th, 2026

No flight details available for this date.