Seattle / Tacoma (SEA) to Singapore (SIN) flight deal in economy from $405
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
SINSingapore Changi Airport
Singapore, Singapore
$573 USD
-29%$405 USD
Verified about 3 hours agoSeptember 2026
Mon
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Good Availability
54% of dates checked are available within 10% of the lowest price
Tuesday, September 15th, 2026
Outbound Flights
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