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Cheap flights from Oregon to Singapore from S$ 625

PDX — SIN
18 Sep — 25 Sep1
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

Sat 7-1107:04 -
2 stops39h 56m
Fri 13-1123:00 -
2 stops40h 18m
Deal found 18-8S$ 1,247
Sat 7-1107:04 -
2 stops39h 56m
Fri 13-1100:25 -
2 stops38h 53m
Deal found 17-8S$ 1,259
Wed 11-1107:08 -
2 stops33h 37m
Sun 22-1103:15 -
2 stops32h 33m
Deal found 17-8S$ 1,293
Tue 3-1108:08 -
2 stops32h 37m
Mon 16-1103:15 -
2 stops27h 58m
Deal found 16-8S$ 1,295
Tue 29-907:03 -
1 stop21h 07m
Tue 6-1009:05 -
1 stop19h 27m
Deal found 15-8S$ 1,304
Tue 29-905:07 -
2 stops43h 38m
Mon 5-1003:15 -
2 stops33h 41m
Deal found 15-8S$ 1,307
Thu 1-1011:48 -
2 stops42h 27m
Wed 7-1003:15 -
2 stops34h 47m
Deal found 16-8S$ 1,311
Mon 28-907:09 -
2 stops41h 36m
Tue 13-1003:15 -
2 stops33h 41m
Deal found 16-8S$ 1,312
Sun 27-911:48 -
2 stops36h 57m
Sat 10-1003:15 -
2 stops34h 47m
Deal found 16-8S$ 1,342
Sat 24-1017:48 -
2 stops37h 07m
Thu 29-1009:15 -
1 stop19h 17m
Deal found 15-8S$ 1,343
Wed 2-906:23 -
2 stops27h 57m
Sun 13-908:05 -
2 stops28h 33m
Deal found 16-8S$ 1,406
Fri 2-1006:23 -
1 stop21h 12m
Fri 9-1009:00 -
1 stop20h 23m
Deal found 17-8S$ 1,459

Find flight deals from Oregon to Singapore

Round-trip from

S$ 1,247

One-way from

S$ 625

Popular in

December

Cheapest in

January

Average price

S$ 1,328
7-11-13-11
  • 7-11-13-11
  • 4 total stops
  • 78h 49m total
  • Oregon to Singapore
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11-2
  • 11-2
  • 2 total stops
  • 25h 55m total
  • Oregon to Singapore
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Highest demand for flights based on searches. 10% potential increase in price (S$ 203 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (S$ 90 potential savings vs. average return price).
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Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Oregon to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Sat 7-11

05:30-20:15

1 stop22h 45m

Singapore Changi

Sat 14-11

22:20-21:13

2 stops38h 53m

S$ 1,426

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Mon 28-9

05:30-18:35

1 stop22h 05m

Singapore Changi

Wed 14-10

08:45-21:10

2 stops27h 25m

S$ 1,426

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Tue 2-2

07:30-20:15

1 stop20h 45m

Singapore Changi

Mon 15-2

10:45-00:54

2 stops30h 09m

S$ 1,434
Fastest return journey

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Sun 8-11

15:15-07:00

1 stop23h 45m

Singapore Changi

Sat 28-11

08:40-09:26

1 stop16h 46m

S$ 1,442

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Wed 30-12

21:30-19:05

1 stop29h 35m

Singapore Changi

Tue 2-2

09:15-20:48

1 stop27h 33m

S$ 1,458

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Wed 11-11

07:10-20:15

1 stop21h 05m

Singapore Changi

Mon 23-11

10:10-22:46

1 stop28h 36m

S$ 1,465

BoiseSingapore

BOI Boise Air Term. Gowen Fld - SIN Singapore Changi

BOISIN

Boise Air Term. Gowen Fld

Thu 26-11

08:15-20:15

1 stop21h 00m

Singapore Changi

Sun 17-1

10:10-19:16

1 stop24h 06m

S$ 1,471

BoiseSingapore

BOI Boise Air Term. Gowen Fld - SIN Singapore Changi

BOISIN

Boise Air Term. Gowen Fld

Fri 18-9

06:23-17:35

1 stop21h 12m

Singapore Changi

Fri 2-10

09:00-20:25

1 stop25h 25m

S$ 1,475

BoiseSingapore

BOI Boise Air Term. Gowen Fld - SIN Singapore Changi

BOISIN

Boise Air Term. Gowen Fld

Wed 2-9

19:05-06:15

1 stop21h 10m

Singapore Changi

Sun 13-9

20:35-11:06

1 stop28h 31m

S$ 1,477

BoiseSingapore

BOI Boise Air Term. Gowen Fld - SIN Singapore Changi

BOISIN

Boise Air Term. Gowen Fld

Wed 30-9

18:50-06:15

1 stop21h 25m

Singapore Changi

Wed 7-10

08:45-23:59

1 stop29h 14m

S$ 1,477

Flights are sorted by cheapest return flights first.

Deals found on 17-8

Showing 1-10 of 36 resultsSorted by cheapest first
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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

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, January is the cheapest month in which you can book a flight from Oregon to Singapore (average of S$ 1,139). Flying from Oregon to Singapore in December is currently the most expensive (average of S$ 2,184). 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?

Airfare is below average for this route at the moment.
Oregon to Singapore flights typically cost between S$ 1,264 and S$ 1,585 in November.
The cheapest return price found within the last 5 days was S$ 1,247 on Multiple Airlines (7 Nov–13 Nov).

How far ahead should I book a flight from Oregon to Singapore?

The price you pay for your flight from Oregon to Singapore may vary depending on when you book. For the best chance of a lower fare, look to book 48 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

  • 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$ 1,426, Qatar Airways can have you in Singapore from Oregon in 22h 45m. 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, January is the cheapest month in which you can book a flight from Oregon to Singapore (average of S$ 1,139). Flying from Oregon to Singapore in December is currently the most expensive (average of S$ 2,184). 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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Deals for Oregon to Singapore flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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Cheapflights helps you find that perfect flight to Singapore from Oregon by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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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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