How long is the flight from Portland to Singapore?

There are many flights that can get you from Portland to Singapore in 27h 10m. Fly via Air Canada, Delta, or Korean Air to get the fastest option. The distance between Portland and Singapore is about 13073 km. Both multi-stop and direct flights can be found to your destination and back. Find deals

What is the cheapest day to fly from Portland to Singapore?

Travellers seeking maximum savings on their Portland to Singapore flight should consider departing on Sunday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time. Find deals

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm. Find deals

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

What is the cheapest time of day to fly from PDX to SIN?

Unlike in the morning, when flights are generally more expensive, you can save up to 46% on flights from Portland to Singapore by exploring options for tickets at midday.

Can I find deals for flights from Portland to Singapore that include hotel bookings?

Yes. In addition to deals on Portland to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Portland to Singapore?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Singapore.

Can I find deals for business class flights from Portland to Singapore?

Yes. Cheapflights offers flight deals from Portland to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

S$ 443+ Flights from Portland to Singapore

Cheapflights Tip: The best prices from Portland to Singapore Changi are usually found in September or May, booked 75 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Portland to Singapore

Round-trip from	S$ 957
One-way from	S$ 443
Popular in	December
Cheapest in	September
Average price	S$ 961

Air Canada
25-1-4-2
4 total stops
71h 40m total
Portland to Singapore

Search Deals

26-10
2 total stops
25h 05m total
Portland to Singapore

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (S$ 282 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (S$ 101 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Portland to Singapore

Cheapest flights from Portland to Singapore
Explore the most affordable flight options available from Portland to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Thu 18-915:25PDX - SIN

1 stop24h 40mAir Canada

Thu 25-909:10SIN - PDX

1 stop24h 36mAir Canada

Deal found 17-9S$ 976

Sun 2-1119:00PDX - SIN

1 stop20h 00mAir Canada

Sun 9-1121:00SIN - PDX

2 stops28h 15mAir Canada

Deal found 17-9S$ 989

Thu 18-913:45PDX - SIN

2 stops26h 20mMultiple Airlines

Thu 25-906:15SIN - PDX

2 stops23h 31mMultiple Airlines

Deal found 17-9S$ 1,012

Fri 17-1015:25PDX - SIN

1 stop24h 40mAir Canada

Fri 31-1008:50SIN - PDX

1 stop20h 55mAir Canada

Deal found 18-9S$ 1,015

Fri 17-1019:40PDX - SIN

1 stop20h 25mAir Canada

Sat 1-1121:00SIN - PDX

2 stops28h 15mAir Canada

Deal found 18-9S$ 1,017

Wed 29-1015:15PDX - SIN

1 stop24h 45mAir Canada

Thu 13-1108:50SIN - PDX

2 stops31h 36mAir Canada

Deal found 16-9S$ 1,045

Mon 27-1019:00PDX - SIN

2 stops28h 50mAir Canada

Thu 13-1108:50SIN - PDX

2 stops31h 36mAir Canada

Deal found 16-9S$ 1,048

Best flights from Portland to Singapore
Discover carefully curated flight deals from Portland to Singapore that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Thu 30-1007:30PDX - SIN

2 stops32h 30mAir Canada

Sun 16-1121:00SIN - PDX

2 stops28h 15mAir Canada

Deal found 16-9S$ 1,070

Tue 28-1005:30PDX - SIN

2 stops27h 40mDelta

Sun 16-1101:35SIN - PDX

2 stops31h 10mDelta

Deal found 16-9S$ 1,073

Thu 30-1006:00PDX - SIN

2 stops27h 10mKorean Air

Mon 10-1101:35SIN - PDX

2 stops27h 43mKorean Air

Deal found 16-9S$ 1,081

Sun 23-1109:50PDX - SIN

1 stop29h 10mMultiple Airlines

Sun 7-1209:30SIN - PDX

2 stops25h 00mMultiple Airlines

Deal found 16-9S$ 1,164

Tue 28-1009:17PDX - SIN

2 stops23h 53mDelta

Tue 11-1110:40SIN - PDX

2 stops22h 05mDelta

Deal found 16-9S$ 1,073

Mon 8-1207:15PDX - SIN

2 stops24h 55mKorean Air

Tue 16-1201:35SIN - PDX

2 stops27h 38mKorean Air

Deal found 16-9S$ 1,081

Tue 28-1005:30PDX - SIN

2 stops27h 40mDelta

Wed 12-1110:40SIN - PDX

2 stops22h 05mDelta

Deal found 16-9S$ 1,073

Mon 27-1009:17PDX - SIN

2 stops23h 53mKorean Air

Tue 11-1122:30SIN - PDX

2 stops30h 48mKorean Air

Deal found 16-9S$ 1,081

Sat 25-1017:07PDX - SIN

2 stops36h 18mKorean Air

Wed 12-1122:30SIN - PDX

2 stops30h 48mKorean Air

Deal found 16-9S$ 1,113

Tue 28-1009:17PDX - SIN

2 stops23h 53mKorean Air

Fri 14-1122:30SIN - PDX

2 stops33h 52mKorean Air

Deal found 16-9S$ 1,234

Thu 30-1006:00PDX - SIN

2 stops27h 10mKorean Air

Fri 14-1122:30SIN - PDX

2 stops33h 52mKorean Air

Deal found 16-9S$ 1,234

Last-minute flights from Portland to Singapore
Discover last-minute flight deals from Portland to Singapore. Data last updated 18 September 2025 and is based on user searches.

Tue 23-906:20PDX - SIN

2 stops31h 40mKorean Air

Mon 29-922:30SIN - PDX

2 stops33h 40mKorean Air

Deal found 16-9S$ 1,081

Tue 23-912:07PDX - SIN

3 stops39h 48mMultiple Airlines

Mon 29-907:50SIN - PDX

3 stops40h 31mMultiple Airlines

Deal found 16-9S$ 1,315

Tue 23-905:30PDX - SIN

1 stop21h 55mUnited Airlines

Mon 29-911:05SIN - PDX

2 stops40h 37mUnited Airlines

Deal found 16-9S$ 1,321

Wed 24-915:40PDX - SIN

2 stops36h 15mMultiple Airlines

Sun 5-1014:35SIN - PDX

2 stops23h 10mMultiple Airlines

Deal found 17-9S$ 6,291

Wed 24-907:21PDX - SIN

2 stops38h 14mChina Airlines

Sat 4-1002:00SIN - PDX

2 stops46h 47mChina Airlines

Deal found 17-9S$ 6,789

One-way flights from Portland to Singapore
Search for one-way flight options from Portland to Singapore. Find affordable one-way fares based on user searches. Data last updated 18 September 2025.

Sun 26-1017:30PDX - SIN

2 stops25h 05mMultiple Airlines

Deal found 16-9S$ 443

Fri 13-214:45PDX - SIN

2 stops26h 50mMultiple Airlines

Deal found 17-9S$ 509

Tue 30-908:06PDX - SIN

3 stops58h 19mMultiple Airlines

Deal found 17-9S$ 554

Sun 26-1009:50PDX - SIN

1 stop30h 10mAir Canada

Deal found 16-9S$ 571

Thu 6-1109:50PDX - SIN

2 stops29h 00mMultiple Airlines

Deal found 17-9S$ 643

Sat 29-1122:30PDX - SIN

2 stops34h 20mAlaska Airlines

Deal found 17-9S$ 662

Sat 29-1114:15PDX - SIN

2 stops45h 45mMultiple Airlines

Deal found 17-9S$ 710

Thu 6-1106:00PDX - SIN

1 stop22h 15mUnited Airlines

Deal found 16-9S$ 725

Fly from

Fly to

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 30-10

07:30-07:00

2 stops32h 30m

Singapore Changi

Sun 16-11

21:00-09:15

2 stops28h 15m

S$ 1,070

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 28-10

05:30-00:10

2 stops27h 40m

Singapore Changi

Sun 16-11

01:35-16:45

2 stops31h 10m

S$ 1,073

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 28-10

09:17-00:10

2 stops23h 53m

Singapore Changi

Tue 11-11

10:40-16:45

2 stops22h 05m

S$ 1,073

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 28-10

05:30-00:10

2 stops27h 40m

Singapore Changi

Wed 12-11

10:40-16:45

2 stops22h 05m

S$ 1,073

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 30-10

06:00-00:10

2 stops27h 10m

Singapore Changi

Mon 10-11

01:35-13:18

2 stops27h 43m

S$ 1,081

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 8-12

07:15-00:10

2 stops24h 55m

Singapore Changi

Tue 16-12

01:35-13:13

2 stops27h 38m

S$ 1,081

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 27-10

09:17-00:10

2 stops23h 53m

Singapore Changi

Tue 11-11

22:30-13:18

2 stops30h 48m

S$ 1,081

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 25-10

17:07-20:25

2 stops36h 18m

Singapore Changi

Wed 12-11

22:30-13:18

2 stops30h 48m

S$ 1,113

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 23-11

09:50-07:00

1 stop29h 10m

Singapore Changi

Sun 7-12

09:30-18:30

2 stops25h 00m

S$ 1,164

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 28-10

09:17-00:10

2 stops23h 53m

Singapore Changi

Fri 14-11

22:30-16:22

2 stops33h 52m

S$ 1,234

Flights are sorted by cheapest return flights first.

Deals found on 16-9

Showing 1-10 of 20 results

Best time to book a flight from Portland to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Portland with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Singapore

How far ahead should I book a flight from Portland to Singapore?

To ensure you get the cheapest price possible for a flight from Portland to Singapore, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

How long is the flight from Portland to Singapore?
There are many flights that can get you from Portland to Singapore in 27h 10m. Fly via Air Canada, Delta, or Korean Air to get the fastest option. The distance between Portland and Singapore is about 13073 km. Both multi-stop and direct flights can be found to your destination and back.
Can I find deals for flights from Portland to Singapore that include hotel bookings?
Yes. In addition to deals on Portland to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portland to Singapore?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Singapore.
Can I find deals for business class flights from Portland to Singapore?
Yes. Cheapflights offers flight deals from Portland to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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How does Cheapflights help users find flights from Portland to Singapore?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Singapore from Portland today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Portland to Singapore?

Cheapflights helps you find that perfect flight to Singapore from Portland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Portland to Singapore with no change fees?

Yes, we can. To see specific flights from Portland to Singapore with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Portland to Singapore become cheaper?

Not ready to book yet? You can track prices for flights from Portland to Singapore on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Portland to Singapore from S$ 443

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26-10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Portland to Singapore Changi are usually found in September or May, booked 75 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Portland to Singapore

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Singapore

Cheapest flights from Portland to SingaporeExplore the most affordable flight options available from Portland to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Explore the most affordable flight options available from Portland to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Singapore that are best for you.

Best time to book a flight from Portland to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Portland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Portland to Singapore

How far ahead should I book a flight from Portland to Singapore?

Related info for your journey

Find useful and relevant information for your journey from Portland to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Portland to Singapore?

Can I find deals for flights from Portland to Singapore that include hotel bookings?

How can I find direct flights from Portland to Singapore?

Can I find deals for business class flights from Portland to Singapore?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Singapore

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portland to Singapore?

Why should you use Cheapflights to find cheap flight tickets from Portland to Singapore?

Can Cheapflights find flights from Portland to Singapore with no change fees?

Can Cheapflights notify me if prices for flights from Portland to Singapore become cheaper?

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Cheapest flights from Portland to Singapore
Explore the most affordable flight options available from Portland to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.