Seattle / Tacoma (SEA) to Singapore (SIN) flight deal in economy from $378

UAUnited Airlines

One Way•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

SIN

Singapore Changi Airport

Singapore, Singapore

$725 USD

-48%$378 USD

Verified 1 day ago

January 2027

Today

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28$1,31929$1,39830$1,14831$1,1101$1,0922$1,3333$1,0714$8935$8936$9737$7138$1,0299$71310$38311$38312$38313$38314$38315$39116$49617$38318$38319$37820$37821$37822$39123$38324$38325$37826$37827$38328$38329$71330$38331$383

Good Availability

52% of dates checked are available within 10% of the lowest price

Tuesday, January 19th, 2027

Outbound Flights

21h 15m·1 stop

$378 USD

SEAJan 19 07:00

→

SFOJan 19 09:21

UA 499Airbus A320

1h 14m layover

SFOJan 19 10:35

→

SINJan 20 20:15

UA 29Boeing 787

23h 10m·1 stop

$383 USD

SEAJan 19 15:45

→

HNDJan 20 19:15

NH 117Boeing 787

5h 10m layover·Overnight

HNDJan 21 00:25

→

SINJan 21 06:55

NH 843Boeing 787

34h 41m·1 stop

$458 USD

SEAJan 19 17:34

→

SFOJan 19 20:10

UA 5765Embraer 175

14h 25m layover·Overnight

SFOJan 20 10:35

→

SINJan 21 20:15

UA 29Boeing 787

29h 39m·1 stop

$473 USD

SEAJan 19 10:21

→

SFOJan 19 12:40

UA 246Boeing 737

10h layover

SFOJan 19 22:40

→

SINJan 21 08:00

UA 1Boeing 787

26h 42m·1 stop

$854 USD

SEAJan 19 13:18

→

SFOJan 19 15:35

UA 2416Airbus A320

7h 5m layover

SFOJan 19 22:40

→

SINJan 21 08:00

UA 1Boeing 787

22h 26m·1 stop

$1,040 USD

SEAJan 19 17:34

→

SFOJan 19 20:10

UA 5765Embraer 175

2h 30m layover

SFOJan 19 22:40

→

SINJan 21 08:00

UA 1Boeing 787

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