PDXPortland International Airport
Portland, United States
SINSingapore Changi Airport
Singapore, Singapore
$741 USD
-39%$452 USD
Verified Nov 29, 2025 at 12:36 AMJanuary 2026
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Fair Availability
33% of dates checked are available within 10% of the lowest price
Thursday, January 1st, 2026
Outbound Flights
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