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Cheap flights from Oregon to Singapore from S$ 416

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 6-8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
11 Apr — 18 Apr1
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 12 March 2026.

Tue 1-917:35
PDX
-
SIN
2 stops24h 30m
Multiple Airlines
Tue 22-914:30
SIN
-
PDX
2 stops24h 40m
Multiple Airlines
Deal found 8-3S$ 890
Thu 15-1019:40
PDX
-
SIN
2 stops22h 25m
Multiple Airlines
Thu 22-1014:30
SIN
-
PDX
2 stops24h 40m
Multiple Airlines
Deal found 12-3S$ 906
Thu 8-1017:35
PDX
-
SIN
2 stops24h 30m
Multiple Airlines
Fri 16-1014:30
SIN
-
PDX
2 stops24h 40m
Multiple Airlines
Deal found 8-3S$ 992
Thu 8-1017:35
PDX
-
SIN
2 stops24h 30m
Multiple Airlines
Fri 30-1014:30
SIN
-
PDX
2 stops23h 14m
Multiple Airlines
Deal found 12-3S$ 1,009
Thu 8-1007:00
PDX
-
SIN
1 stop21h 10m
Singapore Airlines
Fri 30-1019:00
SIN
-
PDX
1 stop19h 54m
Singapore Airlines
Deal found 12-3S$ 1,088
Tue 29-907:00
PDX
-
SIN
2 stops25h 20m
ANA
Tue 13-1000:50
SIN
-
PDX
2 stops31h 04m
ANA
Deal found 8-3S$ 1,113
Wed 22-407:00
PDX
-
SIN
1 stop21h 10m
Singapore Airlines
Wed 29-420:45
SIN
-
PDX
1 stop27h 53m
Singapore Airlines
Deal found 8-3S$ 1,137
Wed 22-420:38
EUG
-
SIN
1 stop29h 57m
Multiple Airlines
Wed 29-420:45
SIN
-
EUG
1 stop40h 18m
Multiple Airlines
Deal found 8-3S$ 1,139
Mon 31-817:40
PDX
-
SIN
1 stop23h 00m
Singapore Airlines
Mon 7-920:45
SIN
-
PDX
1 stop27h 40m
Singapore Airlines
Deal found 11-3S$ 1,142
Tue 29-908:46
PDX
-
SIN
2 stops23h 34m
ANA
Thu 15-1011:05
SIN
-
PDX
2 stops23h 01m
ANA
Deal found 8-3S$ 1,144
Thu 15-1007:00
PDX
-
SIN
1 stop21h 10m
Singapore Airlines
Thu 22-1009:00
SIN
-
PDX
1 stop20h 55m
Singapore Airlines
Deal found 12-3S$ 1,160
Mon 31-817:40
PDX
-
SIN
2 stops27h 05m
Cathay Pacific
Mon 7-920:05
SIN
-
PDX
2 stops28h 41m
Cathay Pacific
Deal found 11-3S$ 1,171

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 12 March 2026.

Round-trip from

S$ 890

One-way from

S$ 416

Popular in

December

Cheapest in

May

Average price

S$ 1,245
1-9-22-9
  • 1-9-22-9
  • 4 total stops
  • 49h 10m total
  • Oregon to Singapore
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 6-8
  • 2 total stops
  • 28h 17m total
  • Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (S$ 257 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (S$ 96 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
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 12 March 2026.
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

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Wed 22-4

20:38-17:35

1 stop29h 57m

Singapore Changi

Wed 29-4

20:45-22:03

1 stop40h 18m

S$ 1,139

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Tue 11-8

18:51-07:40

1 stop22h 49m

Singapore Changi

Fri 21-8

09:15-17:04

1 stop21h 49m

S$ 1,258

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Wed 12-8

18:51-05:15

1 stop20h 24m

Singapore Changi

Sat 22-8

09:15-17:04

1 stop21h 49m

S$ 1,258

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 6-4

07:15-18:35

1 stop20h 20m

Singapore Changi

Wed 15-4

09:00-18:07

1 stop24h 07m

S$ 1,405
Fastest return journey

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 4-5

07:15-18:35

1 stop20h 20m

Singapore Changi

Mon 18-5

20:35-00:59

1 stop19h 24m

S$ 1,405

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 18-5

05:30-18:35

1 stop22h 05m

Singapore Changi

Tue 9-6

08:45-21:15

2 stops27h 30m

S$ 1,412

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Tue 19-5

08:28-18:35

1 stop20h 07m

Singapore Changi

Sat 20-6

08:45-21:40

1 stop26h 55m

S$ 1,418

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Sun 29-3

19:03-18:35

1 stop33h 32m

Singapore Changi

Sat 9-5

20:35-15:26

1 stop32h 51m

S$ 1,436

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Wed 22-4

14:00-06:45

1 stop25h 45m

Singapore Changi

Wed 29-4

09:00-21:07

2 stops27h 07m

S$ 1,440

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 22-4

07:00-19:10

1 stop21h 10m

Singapore Changi

Sun 3-5

20:45-09:38

1 stop27h 53m

S$ 1,441

Flights are sorted by cheapest return flights first.

Deals found on 10-3

Showing 1-10 of 40 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
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$ 882). Flying from Oregon to Singapore in July is currently the most expensive (average of S$ 1,124). 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$ 1,405, United Airlines can have you in Singapore from Oregon in 20h 20m. The distance between Oregon and Singapore is about 13073 km.

  • 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$ 882). Flying from Oregon to Singapore in July is currently the most expensive (average of S$ 1,124). 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.

Why should you use Cheapflights to find cheap flight tickets from Oregon to Singapore?

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!

Can Cheapflights find flights from Oregon to Singapore with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Oregon to Singapore flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Oregon to Singapore become cheaper?

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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