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$347+ Cheap flights from Oregon to Singapore (SIN)

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
mar 5 — mar 121
gio 3/5
gio 3/12
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 febbraio 3, 2026.

This oojo deal was found by Cheapflights users on 2/2. 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.
mar 4/147:14 am
PDX
-
SIN
2 stops26h 31m
Cathay Pacific
mar 4/217:20 am
SIN
-
PDX
2 stops24h 10m
Cathay Pacific
Deal found 2/2$860
This oojo deal was found by Cheapflights users on 2/1. 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.
mer 5/67:11 am
PDX
-
SIN
2 stops26h 34m
Cathay Pacific
mer 5/137:20 am
SIN
-
PDX
2 stops24h 29m
Cathay Pacific
Deal found 2/1$863
This Singapore Airlines deal was found by Cheapflights users on 1/31. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 10/287:40 pm
PDX
-
SIN
1 stop31h 05m
Multiple Airlines
mar 11/179:00 am
SIN
-
PDX
1 stop19h 22m
Multiple Airlines
Deal found 1/31$867
This Singapore Airlines deal was found by Cheapflights users on 2/2. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar 4/147:05 am
PDX
-
SIN
1 stop21h 05m
Multiple Airlines
mar 4/219:00 am
SIN
-
PDX
1 stop27h 38m
Multiple Airlines
Deal found 2/2$882
This oojo deal was found by Cheapflights users on 2/1. 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.
mer 5/67:00 am
PDX
-
SIN
1 stop21h 10m
Singapore Airlines
mer 5/139:15 am
SIN
-
PDX
1 stop19h 35m
Singapore Airlines
Deal found 2/1$884
This oojo deal was found by Cheapflights users on 2/3. 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.
ven 9/186:07 am
PDX
-
SIN
1 stop20h 28m
Singapore Airlines
dom 9/209:00 am
SIN
-
PDX
1 stop18h 22m
Singapore Airlines
Deal found 2/3$895
This Orbitz deal was found by Cheapflights users on 2/1. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer 3/43:52 pm
PDX
-
SIN
2 stops25h 43m
Multiple Airlines
mar 3/1012:05 am
SIN
-
PDX
2 stops37h 40m
Multiple Airlines
Deal found 2/1$909
This oojo deal was found by Cheapflights users on 2/2. 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.
gio 4/95:49 pm
PDX
-
SIN
2 stops27h 36m
Cathay Pacific
mer 4/157:20 am
SIN
-
PDX
2 stops24h 10m
Cathay Pacific
Deal found 2/2$913
This oojo deal was found by Cheapflights users on 2/2. 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.
lun 3/26:25 am
PDX
-
SIN
2 stops26h 00m
Cathay Pacific
mar 3/177:40 am
SIN
-
PDX
2 stops24h 28m
Cathay Pacific
Deal found 2/2$915
This Singapore Airlines deal was found by Cheapflights users on 2/1. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun 10/267:40 pm
PDX
-
SIN
1 stop31h 05m
Multiple Airlines
dom 11/89:00 am
SIN
-
PDX
1 stop19h 22m
Multiple Airlines
Deal found 2/1$917
This oojo deal was found by Cheapflights users on 1/31. 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.
mer 10/287:00 am
PDX
-
SIN
2 stops26h 25m
Cathay Pacific
mar 11/177:40 am
SIN
-
PDX
2 stops24h 47m
Cathay Pacific
Deal found 1/31$919
This FlightHub deal was found by Cheapflights users on 2/1. 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.
sab 8/157:05 pm
PDX
-
SIN
2 stops26h 35m
STARLUX Airlines
lun 8/312:00 pm
SIN
-
PDX
2 stops25h 10m
STARLUX Airlines
Deal found 2/1$923

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 febbraio 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$860
(oojo)

One-way from

$347
(Orbitz)

Popular in

December

Cheapest in

September

Average price

$922
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 Changi
Search Deals
One-way flight from Oregon to Singapore Changi
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($165 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($63 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 febbraio 3, 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

lun 2/16

7:05 am-12:25 am

2 stops25h 20m

Singapore Changi

dom 3/1

8:15 pm-5:13 pm

2 stops36h 58m

$930

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

dom 4/5

11:41 am-12:25 pm

2 stops33h 44m

Singapore Changi

gio 4/9

7:20 am-11:04 pm

2 stops30h 44m

$990

PortlandSingapore

PDX - SIN

PDXSIN

Portland

mar 3/3

5:50 pm-4:50 pm

2 stops31h 00m

Singapore Changi

mar 3/10

12:55 pm-4:41 pm

2 stops42h 46m

$991

PortlandSingapore

PDX - SIN

PDXSIN

Portland

lun 2/16

8:30 am-2:55 pm

2 stops38h 25m

Singapore Changi

gio 2/26

3:15 am-10:41 pm

2 stops35h 26m

$1,022

PortlandSingapore

PDX - SIN

PDXSIN

Portland

mar 5/5

5:35 pm-6:45 am

1 stop22h 10m

Singapore Changi

mer 5/13

8:35 pm-12:59 am

1 stop19h 24m

$1,027

PortlandSingapore

PDX - SIN

PDXSIN

Portland

mar 5/5

7:15 am-6:35 pm

1 stop20h 20m

Singapore Changi

gio 5/14

8:35 pm-12:59 am

1 stop19h 24m

$1,027

PortlandSingapore

PDX - SIN

PDXSIN

Portland

lun 2/16

5:35 am-8:15 pm

1 stop22h 40m

Singapore Changi

mar 2/24

10:10 am-2:48 pm

1 stop20h 38m

$1,027

PortlandSingapore

PDX - SIN

PDXSIN

Portland

lun 5/4

5:30 am-6:35 pm

1 stop22h 05m

Singapore Changi

lun 5/11

9:00 am-6:46 pm

1 stop24h 46m

$1,027

PortlandSingapore

PDX - SIN

PDXSIN

Portland

lun 2/16

3:50 pm-8:00 am

1 stop24h 10m

Singapore Changi

gio 2/26

10:10 am-2:54 pm

1 stop20h 44m

$1,027

PortlandSingapore

PDX - SIN

PDXSIN

Portland

mar 3/3

5:35 am-8:15 pm

1 stop22h 40m

Singapore Changi

mar 3/10

10:10 am-6:47 pm

1 stop23h 37m

$1,027

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 41 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.

  • What airport do you fly into for flights to Singapore from Oregon?

    Located just 10.5 mi from the city center, Singapore Changi (SIN) is the airport most travelers will use when flying to Singapore from Oregon.

  • How long is the flight from Oregon to Singapore?

    Cathay Pacific, Qatar Airways, and United Airlines can get you from Oregon to Singapore in just under 22h 10m. Your travel time can differ by up to 16h 15m. There are 8123 mi between Oregon and Singapore. This flight may include one or multiple stops.

  • What are the most popular routes from Oregon to Singapore?

    Most travelers choose Portland - Singapore Changi, Boise Air Term. Gowen Fld - Singapore Changi or Eugene - Singapore Changi when deciding on the best route from Oregon to Singapore.

  • 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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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 febbraio 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$694Average$836FlexibilityNo cancel feeOn-time67%
Korean AirCheapest$792Average$946FlexibilityNo cancel feeOn-time81%
DeltaCheapest$800Average$921FlexibilityNo cancel feeOn-timeN/A
Singapore AirlinesCheapest$837Average$1,045FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$870Average$1,051FlexibilityNo cancel feeOn-time69%

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