May is by far the best month, wherein you can get cheapest flights for Portland to Singapore. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Portland
06:00
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
06:10
Singapore
Singapore Changi Airport
Thu, 09 Jul 2026

Portland
10:35
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
00:20
Singapore
Singapore Changi Airport
Thu, 09 Jul 2026

Portland
06:00
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
00:20
Singapore
Singapore Changi Airport
Thu, 09 Jul 2026

Portland
11:10
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
23:55
Singapore
Singapore Changi Airport
Wed, 08 Jul 2026

Portland
07:04
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
00:20
Singapore
Singapore Changi Airport
Thu, 09 Jul 2026

Portland
06:19
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
17:35
Singapore
Singapore Changi Airport
Wed, 08 Jul 2026

Portland
17:34
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
11:45
Singapore
Singapore Changi Airport
Thu, 09 Jul 2026

Portland
07:00
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
18:35
Singapore
Singapore Changi Airport
Wed, 08 Jul 2026

Portland
19:40
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
23:55
Singapore
Singapore Changi Airport
Thu, 09 Jul 2026

Portland
08:35
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
00:45
Singapore
Singapore Changi Airport
Thu, 09 Jul 2026

Portland
19:30
Portland
Portland International Airport
Tue , 07 Jul 2026

Singapore
16:05
Singapore
Singapore Changi Airport
Thu, 09 Jul 2026










Flying from Portland to Singapore has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.
The air route between Portland to Singapore is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Portland International Airport (PDX) and Singapore Changi Airport (SIN). You can expect a flight distance of approximately 13081 km, and most direct services cover it in around 18:29.
Let’s take a closer look at everything you need to know before booking your flight from Portland to Singapore.
| Flight Details | Information |
|---|---|
| Route Distance | 13081 km |
| Average Flight Time | 18:29 hrs |
| Departure Airport | Portland International Airport (PDX) |
| Arrival Airport | Singapore Changi Airport (SIN) |
| Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
| Direct Flights | NO |
| Common Airlines | Japan AirLines, Alaska Airlines, American Airlines, Korean Air |
The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.