Seattle / Tacoma (SEA) to Singapore (SIN) flight deal in economy from $378
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
SINSingapore Changi Airport
Singapore, Singapore
$725 USD
-48%$378 USD
Verified 1 day agoOctober 2026
Mon
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Good Availability
52% of dates checked are available within 10% of the lowest price
Tuesday, October 27th, 2026
Outbound Flights
20h 25m·1 stop
$378 USD
SEAOct 27 19:35
→SFOOct 27 21:50
UA 1334Boeing 737MAX 9 Passenger
50m layover
SFOOct 27 22:40
→SINOct 29 07:00
UA 1Boeing 787
23h 15m·1 stop
$383 USD
SEAOct 27 16:40
→HNDOct 28 19:15
NH 117Boeing 787
5h 10m layover·Overnight
HNDOct 29 00:25
→SINOct 29 06:55
NH 843Boeing 787-10