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$340+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Oregon to Singapore

Keep the following information in mind while searching for Oregon to Singapore flight deals. Data was last updated September 11, 2025.

Round-trip from

$718
(Air Canada)

One-way from

$340
(Expedia)

Popular in

December

Cheapest in

September

Average price

$753
From Oregon to Singapore Changi
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One-way flight from Oregon to Singapore Changi
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Highest demand for flights based on searches. 13% potential increase in price ($164 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($62 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Air Canada deal was found by Cheapflights users on 9/10. 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.
Tue 9/1610:00 amPDX - SIN
1 stop30h 05mAir Canada
Tue 9/309:10 amSIN - PDX
1 stop24h 36mAir Canada
Deal found 9/10$718
This FlightHub deal was found by Cheapflights users on 9/10. 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 9/215:30 amPDX - SIN
2 stops34h 35mAir Canada
Tue 9/306:15 amSIN - PDX
2 stops23h 31mAir Canada
Deal found 9/10$763
This Expedia deal was found by Cheapflights users on 9/10. 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.
Thu 9/1110:00 amPDX - SIN
1 stop30h 05mAir Canada
Thu 9/189:10 amSIN - PDX
1 stop24h 36mAir Canada
Deal found 9/10$774
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Sat 11/111:59 pmPDX - SIN
2 stops40h 01mMultiple Airlines
Sun 11/169:00 pmSIN - PDX
2 stops33h 45mMultiple Airlines
Deal found 9/10$781
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Sat 10/47:40 pmPDX - SIN
2 stops38h 05mAir Canada
Sat 10/119:10 amSIN - PDX
1 stop20h 36mAir Canada
Deal found 9/11$798
This FlightHub deal was found by Cheapflights users on 9/10. 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.
Sat 11/17:38 pmPDX - SIN
2 stops44h 22mAir Canada
Sun 11/168:50 amSIN - PDX
1 stop16h 25mAir Canada
Deal found 9/10$801
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Sat 10/2511:59 pmPDX - SIN
2 stops40h 01mMultiple Airlines
Sat 11/19:00 pmSIN - PDX
2 stops33h 45mMultiple Airlines
Deal found 9/10$811
This FlightHub deal was found by Cheapflights users on 9/11. 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.
Mon 9/157:09 pmBOI - SIN
2 stops45h 56mAir Canada
Thu 9/259:10 amSIN - BOI
2 stops38h 32mAir Canada
Deal found 9/11$996
This Korean Air deal was found by Cheapflights users on 9/10. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:55 amEUG - SIN
2 stops26h 15mKorean Air
Tue 12/2310:40 amSIN - EUG
2 stops44h 12mKorean Air
Deal found 9/10$1,044
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:45 amBOI - SIN
1 stop20h 40mUnited Airlines
Sun 10/58:45 amSIN - BOI
1 stop28h 59mUnited Airlines
Deal found 9/10$1,063
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/255:00 amBOI - SIN
2 stops24h 15mUnited Airlines
Sun 1/1810:45 amSIN - BOI
2 stops48h 06mUnited Airlines
Deal found 9/11$1,064
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:00 amBOI - SIN
2 stops23h 25mUnited Airlines
Fri 10/108:40 pmSIN - BOI
2 stops30h 50mUnited Airlines
Deal found 9/11$1,067

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 September 11, 2025.
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

Sun 1/25

7:00 pm-4:55 am

2 stops41h 55m

Singapore Changi

Wed 2/4

8:30 am-2:45 pm

2 stops22h 15m

$732

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 1/29

9:50 am-1:00 am

2 stops23h 10m

Singapore Changi

Sat 2/14

8:50 am-9:15 am

1 stop16h 25m

$749

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 2/16

9:50 am-4:55 am

2 stops27h 05m

Singapore Changi

Sun 3/1

8:30 am-6:30 pm

2 stops26h 00m

$750

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 10/25

11:59 pm-7:00 am

2 stops40h 01m

Singapore Changi

Sat 11/1

9:00 pm-3:45 pm

2 stops33h 45m

$811

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 1/25

1:38 pm-12:10 am

2 stops42h 32m

Singapore Changi

Tue 2/3

1:35 am-7:11 pm

2 stops33h 36m

$846

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 2/16

9:30 pm-5:45 pm

1 stop28h 15m

Singapore Changi

Sun 3/1

7:00 pm-11:59 pm

1 stop20h 59m

$952

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 10/26

9:17 am-12:10 am

2 stops23h 53m

Singapore Changi

Sat 11/1

1:35 am-5:45 pm

2 stops31h 10m

$980

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 9/28

8:31 am-12:20 am

2 stops24h 49m

Singapore Changi

Tue 9/30

9:50 pm-9:16 pm

2 stops38h 26m

$1,037

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Mon 12/1

5:55 am-12:10 am

2 stops26h 15m

Singapore Changi

Mon 12/22

1:35 am-2:52 pm

2 stops29h 17m

$1,044

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Wed 10/1

7:05 pm-6:15 am

1 stop21h 10m

Singapore Changi

Fri 10/10

8:45 am-11:44 pm

1 stop28h 59m

$1,063

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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, October is the cheapest month in which you can book a flight from Oregon to Singapore (average of $1,002). Flying from Oregon to Singapore in December is currently the most expensive (average of $1,665). 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.

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

Find hourly flight availability from Oregon to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oregon to Singapore as you normally would.

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?

    Air Canada, Korean Air, and United Airlines can get you from Oregon to Singapore in just under 21h 10m. Your travel time can differ by up to 20h 45m. There are 8456 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, October is the cheapest month in which you can book a flight from Oregon to Singapore (average of $1,002). Flying from Oregon to Singapore in December is currently the most expensive (average of $1,665). 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$694Average$820FlexibilityNo cancel feeOn-time67%
DeltaCheapest$800Average$921FlexibilityNo cancel feeOn-timeN/A
Korean AirCheapest$808Average$956FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$868Average$1,100FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$891Average$1,143FlexibilityNo cancel feeOn-time81%

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