Earn point on your loyalty program!arrow arc left

Cheap flights from Portland (PDX) to Singapore (SIN)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Portland (PDX) to Singapore (SIN)

How to find the cheapest flight from Portland (PDX) to Singapore (SIN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Portland (PDX) to Singapore (SIN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Portland (PDX) to Singapore (SIN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Portland to Singapore in May , June 2026

25 May - 24 Jun $ 1,356.00
PDX
Portland
Alaska Airlines
2 STOPS
SIN
Singapore
SIN
Singapore
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
18 May - 09 Jun $ 1,548.00
PDX
Portland
Alaska Airlines
2 STOPS
SIN
Singapore
SIN
Singapore
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
17 May - 01 Jun $ 7,474.00
PDX
Portland
Alaska Airlines
1 STOPS
SIN
Singapore
SIN
Singapore
Alaska Airlines
1 STOPS
PDX
Portland
Pick dates

Last minute flights from Portland to Singapore

25 May - 31 May $ 1,530.00
PDX
Portland
Alaska Airlines
2 STOPS
SIN
Singapore
SIN
Singapore
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
18 May - 01 Jun $ 1,575.00
PDX
Portland
Alaska Airlines
2 STOPS
SIN
Singapore
SIN
Singapore
Alaska Airlines
2 STOPS
PDX
Portland
Pick dates
21 May - 31 May $ 2,351.00
PDX
Portland
United Airlines
1 STOPS
SIN
Singapore
SIN
Singapore
United Airlines
1 STOPS
PDX
Portland
Pick dates

One-way flights to Singapore from Portland

9:46 PM - 9:30 AM
Xiamen Airlines
2 Stops
25h 4m
PDX - SIN
$ 744
Kiwi
Pick dates
5:59 PM - 7:30 AM
EVA Air
2 Stops
26h 56m
PDX - SIN
$ 829
Kiwi
Pick dates
7:45 PM - 10:40 PM
United Airlines
1 Stops
20h
PDX - SIN
$ 1,134
Kiwi
Pick dates

How to find the cheapest flight from Portland (PDX) to Singapore (SIN)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Portland (PDX) to Singapore (SIN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Portland (PDX) to Singapore (SIN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.