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$405+ Cheap flights from Oregon to Singapore

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Oregon to Singapore

Cheapest flights from Oregon to Singapore
Explore the most affordable flight options available from Oregon to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This oojo deal was found by Cheapflights users on 1/27. 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.
Tue 4/147:05 am
PDX
-
SIN
1 stop21h 05m
Singapore Airlines
Tue 4/219:15 am
SIN
-
PDX
1 stop19h 35m
Singapore Airlines
Deal found 1/27$793
This oojo deal was found by Cheapflights users on 1/28. 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.
Wed 10/282:30 pm
PDX
-
SIN
1 stop24h 00m
Singapore Airlines
Tue 11/179:15 am
SIN
-
PDX
1 stop23h 35m
Singapore Airlines
Deal found 1/28$831
This oojo deal was found by Cheapflights users on 1/27. 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.
Sat 8/152:55 pm
PDX
-
SIN
1 stop25h 55m
Singapore Airlines
Mon 8/318:45 pm
SIN
-
PDX
1 stop28h 40m
Singapore Airlines
Deal found 1/27$873
This oojo deal was found by Cheapflights users on 1/29. 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 2/239:48 pm
PDX
-
SIN
1 stop29h 17m
Singapore Airlines
Wed 3/48:45 pm
SIN
-
PDX
1 stop28h 50m
Singapore Airlines
Deal found 1/29$874
This oojo deal was found by Cheapflights users on 1/26. 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 8/172:55 pm
PDX
-
SIN
1 stop25h 55m
Singapore Airlines
Mon 8/318:45 pm
SIN
-
PDX
1 stop27h 40m
Singapore Airlines
Deal found 1/26$879
This Expedia deal was found by Cheapflights users on 1/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:45 pm
PDX
-
SIN
2 stops24h 20m
Multiple Airlines
Tue 4/2112:35 pm
SIN
-
PDX
2 stops44h 59m
Multiple Airlines
Deal found 1/27$919
This FlightHub deal was found by Cheapflights users on 1/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:30 pm
PDX
-
SIN
2 stops24h 10m
STARLUX Airlines
Sun 8/302:00 pm
SIN
-
PDX
2 stops25h 10m
STARLUX Airlines
Deal found 1/26$922
This Justfly.com deal was found by Cheapflights users on 1/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:36 pm
PDX
-
SIN
2 stops28h 04m
STARLUX Airlines
Mon 8/312:00 pm
SIN
-
PDX
2 stops25h 10m
STARLUX Airlines
Deal found 1/27$923
This oojo deal was found by Cheapflights users on 1/27. 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 4/275:49 pm
PDX
-
SIN
1 stop23h 01m
Singapore Airlines
Thu 4/309:00 am
SIN
-
PDX
1 stop18h 52m
Singapore Airlines
Deal found 1/27$929
This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:36 pm
PDX
-
SIN
2 stops27h 59m
Multiple Airlines
Tue 3/1011:45 pm
SIN
-
PDX
2 stops36h 25m
Multiple Airlines
Deal found 1/28$936
This oojo deal was found by Cheapflights users on 1/26. 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 8/177:05 pm
PDX
-
SIN
2 stops26h 35m
STARLUX Airlines
Mon 8/312:00 pm
SIN
-
PDX
2 stops24h 12m
STARLUX Airlines
Deal found 1/26$939
This oojo deal was found by Cheapflights users on 1/28. 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.
Sat 2/289:19 pm
PDX
-
SIN
1 stop28h 26m
Singapore Airlines
Sat 3/79:00 am
SIN
-
PDX
1 stop22h 48m
Singapore Airlines
Deal found 1/28$954

Find flight deals from Oregon to Singapore

Keep the following information in mind while searching for Oregon to Singapore flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$793
(oojo)

One-way from

$405
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$879
Provider with most accurate pricing for Portland-Singapore Changi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Singapore Changi flights.
Search Deals
From Oregon to Singapore
Search Deals
One-way flight from Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($168 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oregon to Singapore 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 January 29, 2026.
Use the filters below to find and compare flights from Oregon to Singapore that are best for you.

Fly from

Oregon

Fly to

Singapore

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 4/14

7:05 am-7:10 pm

1 stop21h 05m

Singapore Changi

Tue 4/21

9:15 am-1:50 pm

1 stop19h 35m

$793

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 3/2

9:48 pm-7:05 pm

1 stop29h 17m

Singapore Changi

Mon 3/9

8:45 pm-9:35 am

1 stop27h 50m

$874

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 2/23

9:48 pm-7:05 pm

1 stop29h 17m

Singapore Changi

Wed 3/4

8:45 pm-9:35 am

1 stop28h 50m

$874

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 4/27

5:49 pm-7:50 am

1 stop23h 01m

Singapore Changi

Thu 4/30

9:25 am-8:35 pm

2 stops26h 10m

$996

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 2/25

8:30 am-8:45 am

2 stops32h 15m

Singapore Changi

Tue 3/3

3:15 am-10:41 pm

2 stops35h 26m

$1,019

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Mon 2/9

7:08 am-12:50 am

2 stops25h 42m

Singapore Changi

Tue 2/17

2:20 am-10:26 pm

2 stops36h 06m

$1,022

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 2/25

5:35 am-8:15 pm

1 stop22h 40m

Singapore Changi

Wed 3/4

10:20 pm-12:34 am

1 stop18h 14m

$1,026

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Mon 2/9

2:09 pm-8:00 am

1 stop25h 51m

Singapore Changi

Wed 2/18

10:10 am-12:16 pm

1 stop18h 06m

$1,027

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 3/2

5:35 am-8:15 pm

1 stop22h 40m

Singapore Changi

Tue 3/17

10:10 am-11:04 pm

1 stop27h 54m

$1,027

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 2/26

7:30 am-8:15 pm

1 stop20h 45m

Singapore Changi

Thu 3/5

10:20 pm-12:35 am

1 stop18h 15m

$1,027

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 28 results
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Best time to book a flight from Oregon to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Oregon 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 Oregon to Singapore

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

Currently, September is the cheapest month in which you can book a flight from Oregon to Singapore (average of $693). Flying from Oregon to Singapore in December is currently the most expensive (average of $827). 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.

Related info for your journey

Find useful and relevant information for your journey from Oregon 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 Oregon to Singapore?

    Singapore Airlines, Qatar Airways, and United Airlines can get you from Oregon to Singapore in just under 21h 05m. Your travel time can differ by up to 11h 10m. There are 8123 mi between Oregon and Singapore. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oregon 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.

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

    Currently, September is the cheapest month in which you can book a flight from Oregon to Singapore (average of $693). Flying from Oregon to Singapore in December is currently the most expensive (average of $827). 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

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Alternative routes for Oregon to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Oregon to Singapore

Discover the top 5 airlines that operate flights from Oregon to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$694Average$836FlexibilityNo cancel feeOn-time67%
Singapore AirlinesCheapest$789Average$1,063FlexibilityNo cancel feeOn-time81%
Korean AirCheapest$792Average$943FlexibilityNo cancel feeOn-time81%
DeltaCheapest$800Average$921FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$870Average$1,036FlexibilityNo cancel feeOn-time69%

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