S$651 Cheap Flights from Portland to Singapore

View S$651 flight on Tue, 12 May, 2026Opens in a new window

Popular airlines from Portland International Airport (PDX) to Singapore Changi Airport (SIN)

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Cheap Flights from Portland to Singapore (PDX-SIN)

Prices were available within the past 7 days and start at S$651 for one-way flights and S$1,132 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Mon, 8 Sep - Sun, 14 Sep
PDX
Portland
SIN
Singapore
S$1,132 Return, found 12 hours ago
S$1,132
Return
found 12 hours ago
Select Air Canada flight, departing Mon, 8 Sep from Portland to Singapore, returning Sun, 14 Sep, priced at S$1,132 found 12 hours ago
Air Canada
Mon, 8 Sep - Sun, 14 Sep
PDX
Portland
SIN
Singapore
S$1,142 Return, found 12 hours ago
S$1,142
Return
found 12 hours ago
Select Air Canada flight, departing Mon, 8 Sep from Portland to Singapore, returning Sun, 14 Sep, priced at S$1,142 found 12 hours ago
Air Canada
Mon, 8 Sep - Sun, 14 Sep
PDX
Portland
SIN
Singapore
S$1,151 Return, found 12 hours ago
S$1,151
Return
found 12 hours ago
Select Air Canada flight, departing Mon, 8 Sep from Portland to Singapore, returning Sun, 14 Sep, priced at S$1,151 found 12 hours ago
Air Canada
Mon, 8 Sep - Sun, 14 Sep
PDX
Portland
SIN
Singapore
S$1,160 Return, found 12 hours ago
S$1,160
Return
found 12 hours ago
Select Air Canada flight, departing Mon, 8 Sep from Portland to Singapore, returning Sun, 14 Sep, priced at S$1,160 found 12 hours ago
Air Canada
Mon, 8 Sep - Sun, 14 Sep
PDX
Portland
SIN
Singapore
S$1,171 Return, found 12 hours ago
S$1,171
Return
found 12 hours ago
Select Air Canada flight, departing Mon, 8 Sep from Portland to Singapore, returning Sun, 14 Sep, priced at S$1,171 found 12 hours ago
Japan Airlines
Mon, 8 Sep - Sun, 14 Sep
PDX
Portland
SIN
Singapore
S$1,289 Return, found 12 hours ago
S$1,289
Return
found 12 hours ago
Select Japan Airlines flight, departing Mon, 8 Sep from Portland to Singapore, returning Sun, 14 Sep, priced at S$1,289 found 12 hours ago
United
Tue, 7 Oct - Tue, 4 Nov
PDX
Portland
SIN
Singapore
S$1,290 Return, found 5 hours ago
S$1,290
Return
found 5 hours ago
Select United flight, departing Tue, 7 Oct from Portland to Singapore, returning Tue, 4 Nov, priced at S$1,290 found 5 hours ago
United
Tue, 7 Oct - Tue, 4 Nov
PDX
Portland
SIN
Singapore
S$1,298 Return, found 5 hours ago
S$1,298
Return
found 5 hours ago
Select United flight, departing Tue, 7 Oct from Portland to Singapore, returning Tue, 4 Nov, priced at S$1,298 found 5 hours ago
All Nippon Airways
Tue, 7 Oct - Tue, 4 Nov
PDX
Portland
SIN
Singapore
S$1,328 Return, found 5 hours ago
S$1,328
Return
found 5 hours ago
Select All Nippon Airways flight, departing Tue, 7 Oct from Portland to Singapore, returning Tue, 4 Nov, priced at S$1,328 found 5 hours ago
Singapore Airlines
Tue, 7 Oct - Tue, 4 Nov
PDX
Portland
SIN
Singapore
S$1,331 Return, found 5 hours ago
S$1,331
Return
found 5 hours ago
Select Singapore Airlines flight, departing Tue, 7 Oct from Portland to Singapore, returning Tue, 4 Nov, priced at S$1,331 found 5 hours ago

Find the cheapest month to fly from Portland (PDX) to Singapore (SIN)

October is typically the cheapest month to fly

From S$945 - S$1,596 per traveller.

Graph displaying average flight prices per month

Portland to Singapore route information
Origin airport
Portland Intl.
Destination airport
Changi
Airlines serving
Air Canada, All Nippon Airways, American Airlines, Cathay Pacific, Delta, Japan Airlines, KLM, Korean Air, Lufthansa, Malaysia Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, United
Return price
S$1,132
Distance
13005 km

Flights from Portland to Singapore

There are several airlines that operate frequent flights from Portland (PDX) to Singapore (SIN) including

The earliest flight leaves Portland Intl. Airport at 05:35 and arrives at Changi Airport at 00:05. The last flight of the day departs Portland at 19:56 and arrives at Singapore at 23:25.

The flight distance from Portland to Singapore is about 14424 km, the shortest flight is 19 hours 19 minutes with United Airlines.

Expedia lets you search across the largest number of airlines and Singapore flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Portland Singapore flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Portland to Singapore trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Singapore flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Portland to Singapore with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from PDX Airport to Changi Airport (SIN)?
The lowest price advertised for a round-trip journey between Portland Airport and Singapore Airport is S$1,132. But you better act fast. This figure is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from PDX Airport to Changi Airport?
The majority of flights can be cancelled online, but each air carrier has its own terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from PDX Airport to Changi Airport (SIN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Portland Airport to Changi Airport (SIN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from PDX to SIN?
Portland to Singapore is around 13,100 kilometres, so get ready to spend quite a while in the air. Don't forget to pack all the essentials, from your earplugs to your eye mask. Toss in a few snacks to munch on throughout your trip too.
Which airlines fly direct from PDX Airport to Changi Airport (SIN)?
You won't find any airlines flying directly between Portland Intl. Airport (PDX) and Changi Airport, so be prepared to make at least one stop on your journey. A layover can be a good way to break up a trip!
Are Portland Intl. Airport (PDX) to Changi Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally pick up a bargain, with some super cheap airfares from Portland Intl. Airport (PDX) to SIN popping up a few weeks before the date of departure. If you'd rather plan ahead of time, Expedia compares and updates the best flight deals regularly --- as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines quote prices so far in advance.

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