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Cheap flights from Oregon to Singapore from S$ 430

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 15-2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Find 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 27 November 2025.

Wed 26-1109:50PDX - SIN
1 stop29h 10mMultiple Airlines
Wed 3-1223:25SIN - PDX
2 stops31h 15mMultiple Airlines
Deal found 25-11S$ 1,184
Thu 27-1105:20PDX - SIN
2 stops39h 40mMultiple Airlines
Wed 3-1201:35SIN - PDX
2 stops33h 24mMultiple Airlines
Deal found 26-11S$ 1,390
Thu 27-1119:00PDX - SIN
1 stop20h 00mAir Canada
Thu 4-1208:50SIN - PDX
1 stop21h 50mAir Canada
Deal found 26-11S$ 1,416
Wed 26-1113:00PDX - SIN
1 stop27h 00mUnited Airlines
Wed 3-1210:10SIN - PDX
1 stop28h 42mUnited Airlines
Deal found 25-11S$ 1,460
Tue 25-1113:33BOI - SIN
2 stops50h 02mMultiple Airlines
Sun 18-108:15SIN - BOI
2 stops21h 55mMultiple Airlines
Deal found 25-11S$ 1,483
Tue 25-1114:11BOI - SIN
2 stops26h 49mUnited Airlines
Sun 18-122:20SIN - BOI
1 stop40h 28mUnited Airlines
Deal found 25-11S$ 1,553

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 27 November 2025.

Round-trip from

S$ 997

One-way from

S$ 430

Popular in

December

Cheapest in

September

Average price

S$ 1,219
Air Canada
  • Air Canada
  • 14-4-28-4
  • 2 total stops
  • 54h 35m total
  • Oregon to Singapore
Search Deals
15-2
  • 15-2
  • 2 total stops
  • 24h 35m total
  • Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (S$ 293 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (S$ 107 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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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 27 November 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

Wed 22-4

15:15-11:15

2 stops29h 00m

Singapore Changi

Thu 30-4

09:10-18:30

1 stop24h 20m

S$ 999

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 3-3

15:50-07:00

2 stops23h 10m

Singapore Changi

Thu 12-3

08:50-00:44

2 stops30h 54m

S$ 1,087

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Thu 22-1

14:20-08:00

1 stop26h 40m

Singapore Changi

Mon 26-1

22:20-11:25

1 stop28h 05m

S$ 1,258

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 19-2

15:50-08:00

1 stop24h 10m

Singapore Changi

Mon 23-2

10:10-18:55

1 stop24h 45m

S$ 1,266

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 16-2

05:45-20:15

1 stop22h 30m

Singapore Changi

Sun 1-3

10:10-12:38

1 stop18h 28m

S$ 1,271

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Fri 9-1

15:50-08:00

1 stop24h 10m

Singapore Changi

Fri 16-1

10:10-12:34

1 stop18h 24m

S$ 1,326

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 22-4

07:00-19:10

1 stop21h 10m

Singapore Changi

Thu 30-4

09:00-12:26

1 stop18h 26m

S$ 1,327

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 15-4

07:25-18:25

1 stop20h 00m

Singapore Changi

Wed 29-4

20:40-00:54

1 stop19h 14m

S$ 1,330

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Sun 1-2

12:15-05:40

2 stops49h 25m

Singapore Changi

Fri 13-2

20:15-11:19

2 stops55h 04m

S$ 1,364

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Thu 29-1

09:00-00:50

2 stops23h 50m

Singapore Changi

Mon 2-2

08:15-13:08

2 stops20h 53m

S$ 1,380

Flights are sorted by cheapest return flights first.

Deals found on 26-11

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$ 900). Flying from Oregon to Singapore in December is currently the most expensive (average of S$ 1,080). 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 for a return flight from Oregon to Singapore?

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$ 1,380, Air Canada can have you in Singapore from Oregon in 23h 50m. The distance between Oregon and Singapore is about 13124 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$ 900). Flying from Oregon to Singapore in December is currently the most expensive (average of S$ 1,080). 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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