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$485+ Cheap flights from Singapore (SIN) to Portland (PDX)

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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
SIN — PDX
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Singapore to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Singapore (SIN) to Portland (PDX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 18, 2025.

Round-trip from

$852
(Asiana Airlines)

One-way from

$485
(Air Canada)

Popular in

April

Cheapest in

September

Average price

$1,026
From Singapore Changi to Portland
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One-way flight from Singapore Changi to Portland
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Highest demand for flights based on searches. 14% potential increase in price ($208 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Singapore to Portland

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

This Asiana Airlines deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/210:50 pmSIN - PDX
2 stops36h 47mAsiana Airlines
Tue 9/167:35 pmPDX - SIN
2 stops34h 55mAsiana Airlines
Deal found 8/16$852
This Trip.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/292:45 pmSIN - PDX
2 stops20h 52mMultiple Airlines
Tue 12/96:00 amPDX - SIN
2 stops39h 25mMultiple Airlines
Deal found 8/16$862
This Air Canada deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/148:50 amSIN - PDX
1 stop16h 25mAir Canada
Tue 11/187:30 amPDX - SIN
2 stops31h 30mAir Canada
Deal found 8/15$867
This CheapTickets deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/302:45 pmSIN - PDX
2 stops20h 52mMultiple Airlines
Wed 12/101:38 pmPDX - SIN
2 stops31h 47mMultiple Airlines
Deal found 8/17$874
This Gotogate deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/288:50 amSIN - PDX
1 stop24h 40mAir Canada
Mon 12/89:50 amPDX - SIN
2 stops23h 05mAir Canada
Deal found 8/15$897
This Trip.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:25 amSIN - PDX
2 stops37h 12mMultiple Airlines
Mon 12/87:04 amPDX - SIN
2 stops36h 51mMultiple Airlines
Deal found 8/15$928
This oojo deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/292:00 amSIN - PDX
2 stops37h 15mChina Airlines
Tue 10/74:25 pmPDX - SIN
2 stops41h 10mChina Airlines
Deal found 8/16$935
This Flightnetwork deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:50 amSIN - PDX
1 stop20h 55mAir Canada
Wed 12/107:30 pmPDX - SIN
2 stops43h 30mAir Canada
Deal found 8/17$962

Cheapflights Fare Finder

 
Customize your flight search to find flights from Singapore to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Singapore to Portland that are best for you.

Fly from

Singapore

Fly to

Portland

Route

Depart

Return

Price

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Tue 9/2

10:50 pm-8:37 pm

2 stops36h 47m

Portland

Tue 9/16

7:35 pm-9:30 pm

2 stops34h 55m

$852

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Wed 10/29

2:45 pm-8:37 pm

2 stops20h 52m

Portland

Tue 12/9

6:00 am-1:25 pm

2 stops39h 25m

$862

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Fri 11/14

8:50 am-9:15 am

1 stop16h 25m

Portland

Tue 11/18

7:30 am-7:00 am

2 stops31h 30m

$867

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Wed 12/24

9:00 pm-6:30 pm

2 stops37h 30m

$485

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Sun 9/28

9:10 am-11:01 pm

1 stop28h 51m

$503

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Mon 12/1

12:40 am-10:49 am

3 stops50h 09m

$549

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Sun 9/28

10:25 am-11:11 am

3 stops39h 46m

$554

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Tue 8/26

1:10 pm-8:35 pm

2 stops22h 25m

$596

SingaporePortland

SIN - PDX

SINPDX

Singapore Changi

Tue 12/23

2:00 am-12:25 am

2 stops38h 25m

$628

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Best time to book a flight from Singapore to Portland

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

What is the cheapest month to book a flight from Singapore to Portland?

Currently, November is the cheapest month in which you can book a flight from Singapore to Portland (average of $277). Flying from Singapore to Portland in March is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Singapore to Portland?

Related info for your journey

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

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

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

  • How can I find direct flights from Singapore to Portland?

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

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

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

  • What is the cheapest month to book a flight from Singapore to Portland?

    Currently, November is the cheapest month in which you can book a flight from Singapore to Portland (average of $277). Flying from Singapore to Portland in March is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Beaverton
Clackamas
McMinnville
Lake Oswego
Hillsboro
Lincoln City
Cannon Beach
Long Beach
Longview
Tigard
Depoe Bay
Stevenson
Woodburn
Wilsonville
Pacific City
Troutdale
Tillamook
Gresham

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Singapore to Portland

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