Portland (PDX) to Singapore (SIN) flight deal from $768 USD in economy class

ACAir Canada

Round Trip•Economy

PDX

Portland International Airport

Portland, United States

SIN

Singapore Changi Airport

Singapore, Singapore

$1,396 USD

-45%$768 USD

Verified Nov 5, 2025 at 2:36 AM

November 2025

Today

Mon

Tue

Wed

Thu

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Sun

27 28 29 30 31 1 2 3 4 5$1,089 6$822 7$1,119 8$1,114 9$1,119 10$865 11$822 12$834 13$822 14$847 15$848 16$847 17$823 18$822 19$823 20$822 21$1,364 22$890 23$872 24$850 25$823 26$818 27$823 28$848 29$850 30$848

Fair Availability

22% of dates checked are available within 10% of the lowest price

Tuesday, November 25th, 2025

10 round-trip options

Returning

Sun, Nov 30, 2025•5 Day Trip

$1,573 USD

Google Flights

Returning

Mon, Dec 1, 2025•6 Day Trip

$2,335 USD

Google Flights

Returning

Tue, Dec 2, 2025•7 Day Trip

$1,543 USD

Google Flights

Returning

Wed, Dec 3, 2025•8 Day Trip

$2,275 USD

Google Flights

Returning

Thu, Dec 4, 2025•9 Day Trip

$848 USD

Google Flights

Returning

Fri, Dec 5, 2025•10 Day Trip

$1,298 USD

Google Flights

Returning

Sat, Dec 6, 2025•11 Day Trip

$1,126 USD

Google Flights

Returning

Sun, Dec 7, 2025•12 Day Trip

$1,298 USD

Google Flights

Returning

Mon, Dec 8, 2025•13 Day Trip

$1,038 USD

Google Flights

Returning

Tue, Dec 9, 2025•14 Day Trip

$823 USD

Google Flights