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 agoJanuary 2027
Mon
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Good Availability
52% of dates checked are available within 10% of the lowest price
Thursday, January 21st, 2027
Outbound Flights
21h 15m·1 stop
$378 USD
SEAJan 21 07:00
→SFOJan 21 09:21
UA 499Boeing 737MAX 8 Passenger
1h 14m layover
SFOJan 21 10:35
→SINJan 22 20:15
UA 29Boeing 787
23h 10m·1 stop
$383 USD
SEAJan 21 15:45
→HNDJan 22 19:15
NH 117Boeing 787
5h 10m layover·Overnight
HNDJan 23 00:25
→SINJan 23 06:55
NH 843Boeing 787
34h 31m·1 stop
$885 USDSEAJan 21 17:44
→SFOJan 21 20:05
UA 737Boeing 737MAX 9 Passenger
14h 30m layover·Overnight
SFOJan 22 10:35
→SINJan 23 20:15
UA 29Boeing 787
22h 16m·1 stop
$893 USDSEAJan 21 17:44
→SFOJan 21 20:05
UA 737Boeing 737MAX 9 Passenger
2h 35m layover
SFOJan 21 22:40
→SINJan 23 08:00
UA 1Boeing 787
32h 47m·1 stop
$959 USDSEAJan 21 19:28
→SFOJan 21 21:50
UA 2016Airbus A320
12h 45m layover·Overnight
SFOJan 22 10:35
→SINJan 23 20:15
UA 29Boeing 787
20h 32m·1 stop
$1,020 USDSEAJan 21 19:28
→SFOJan 21 21:50
UA 2016Airbus A320
50m layover
SFOJan 21 22:40
→SINJan 23 08:00
UA 1Boeing 787