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Cheap flights from Oregon to Singapore from S$ 570

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 9-2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Oregon to Singapore

Enter your travel dates to find the best prices.

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 5 December 2025.

Sun 14-1217:50PDX - SIN
2 stops43h 50mCathay Pacific
Sat 3-114:05SIN - PDX
2 stops23h 06mCathay Pacific
Deal found 3-12S$ 2,520
Sun 14-1219:00PDX - SIN
1 stop20h 00mAir Canada
Sat 3-108:50SIN - PDX
1 stop25h 40mAir Canada
Deal found 4-12S$ 2,750
Sat 20-1215:15PDX - SIN
2 stops31h 35mAir Canada
Wed 7-121:00SIN - PDX
2 stops37h 30mAir Canada
Deal found 3-12S$ 3,444
Sun 14-1219:30PDX - SIN
2 stops41h 30mDelta
Fri 2-101:35SIN - PDX
2 stops38h 20mDelta
Deal found 4-12S$ 3,517
Sat 20-1217:50PDX - SIN
2 stops26h 05mCathay Pacific
Wed 7-120:15SIN - PDX
2 stops33h 26mCathay Pacific
Deal found 4-12S$ 3,626
Sat 20-1207:30PDX - SIN
1 stop20h 45mUnited Airlines
Wed 7-122:20SIN - PDX
1 stop30h 13mUnited Airlines
Deal found 4-12S$ 3,731
Fri 19-1205:30PDX - SIN
2 stops31h 30mDelta
Sun 4-122:30SIN - PDX
2 stops34h 00mDelta
Deal found 4-12S$ 4,125
Fri 19-1207:15PDX - SIN
2 stops36h 50mEVA Air
Sun 4-115:45SIN - PDX
2 stops38h 02mEVA Air
Deal found 3-12S$ 4,393
Mon 22-1221:50BOI - SIN
2 stops44h 45mMultiple Airlines
Fri 2-110:35SIN - BOI
2 stops42h 14mMultiple Airlines
Deal found 5-12S$ 9,026
Mon 22-1214:10BOI - SIN
1 stop26h 50mUnited Airlines
Fri 2-110:10SIN - BOI
1 stop20h 58mUnited Airlines
Deal found 5-12S$ 12,910

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 5 December 2025.

Round-trip from

S$ 1,004

One-way from

S$ 570

Popular in

December

Cheapest in

September

Average price

S$ 2,174
Singapore Airlines
  • Singapore Airlines
  • 10-3-17-3
  • 2 total stops
  • 47h 04m total
  • Oregon to Singapore
Search Deals
Singapore Airlines
  • Singapore Airlines
  • 9-2
  • 1 total stop
  • 28h 15m total
  • Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (S$ 289 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (S$ 105 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise 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 200,618 searches. Data last updated 5 December 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

Thu 19-3

19:00-07:00

1 stop21h 00m

Singapore Changi

Mon 20-4

22:50-14:40

2 stops30h 50m

S$ 1,039

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 10-3

19:00-07:00

1 stop21h 00m

Singapore Changi

Thu 19-3

08:50-23:04

2 stops53h 14m

S$ 1,061

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 22-1

19:00-07:00

1 stop20h 00m

Singapore Changi

Thu 29-1

08:50-18:30

1 stop25h 40m

S$ 1,065

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 2-3

19:00-11:15

2 stops24h 15m

Singapore Changi

Thu 12-3

08:50-23:04

2 stops29h 14m

S$ 1,093

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 4-3

19:00-07:00

1 stop20h 00m

Singapore Changi

Tue 10-3

06:35-18:30

2 stops26h 55m

S$ 1,093

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 28-1

09:50-00:55

2 stops23h 05m

Singapore Changi

Thu 5-2

08:50-00:39

2 stops31h 49m

S$ 1,106

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 28-1

09:50-00:55

2 stops23h 05m

Singapore Changi

Wed 4-2

06:35-14:40

2 stops24h 05m

S$ 1,110

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 10-3

13:39-07:00

2 stops26h 21m

Singapore Changi

Sun 15-3

08:50-18:30

1 stop24h 40m

S$ 1,115

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 1-3

19:00-21:55

2 stops58h 55m

Singapore Changi

Sun 8-3

08:50-13:40

1 stop20h 50m

S$ 1,119

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 18-1

09:50-07:00

1 stop29h 10m

Singapore Changi

Sun 25-1

08:50-18:30

1 stop25h 40m

S$ 1,130

Flights are sorted by cheapest return flights first.

Deals found on 3-12

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 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 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 S$ 898). Flying from Oregon to Singapore in December is currently the most expensive (average of S$ 1,078). 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 16.9 km from the city centre, 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?

    For as low as S$ 1,039, Air Canada can have you in Singapore from Oregon in 21h. The distance between Oregon and Singapore is about 13073 km. Both multi-stop and direct flights can be found to your destination and back.

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

    The most popular route from Oregon to Singapore is Portland - Singapore Changi. You may also consider Boise Air Term. Gowen Fld - Singapore Changi or Eugene - Singapore Changi.

  • 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 holiday 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 S$ 898). Flying from Oregon to Singapore in December is currently the most expensive (average of S$ 1,078). 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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Users can book flights with no change fees policies with our dedicated filters. Book flights from Oregon to Singapore flexibly with Cheapflights today.

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Yes! Start tracking prices for Oregon to Singapore flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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