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Cheap flights from Oregon to Singapore from S$ 398

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 5-5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
21 May — 28 May1
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 21 April 2026.

Sat 10-1006:07
PDX
-
SIN
1 stop20h 28m
Singapore Airlines
Thu 15-1009:00
SIN
-
PDX
1 stop18h 22m
Singapore Airlines
Deal found 20-4S$ 1,140
Sun 4-1006:07
PDX
-
SIN
1 stop20h 28m
Singapore Airlines
Mon 12-1009:15
SIN
-
PDX
1 stop28h 18m
Singapore Airlines
Deal found 21-4S$ 1,166
Tue 6-1017:40
PDX
-
SIN
1 stop23h 00m
Singapore Airlines
Tue 27-1009:15
SIN
-
PDX
1 stop19h 35m
Singapore Airlines
Deal found 16-4S$ 1,195
Thu 10-908:19
PDX
-
SIN
2 stops24h 16m
Multiple Airlines
Thu 24-914:30
SIN
-
PDX
2 stops41h 20m
Multiple Airlines
Deal found 16-4S$ 1,196
Thu 10-914:50
PDX
-
SIN
1 stop25h 50m
Singapore Airlines
Thu 24-909:00
SIN
-
PDX
1 stop25h 50m
Singapore Airlines
Deal found 16-4S$ 1,227
Sun 1-1107:00
PDX
-
SIN
2 stops26h 00m
Multiple Airlines
Thu 19-1109:00
SIN
-
PDX
1 stop19h 22m
Multiple Airlines
Deal found 19-4S$ 1,242
Thu 1-1014:50
PDX
-
SIN
1 stop25h 50m
Singapore Airlines
Sat 10-1009:15
SIN
-
PDX
1 stop22h 35m
Singapore Airlines
Deal found 16-4S$ 1,252
Mon 4-510:35
PDX
-
SIN
2 stops31h 45m
Qatar Airways
Sun 10-501:30
SIN
-
PDX
2 stops32h 06m
Qatar Airways
Deal found 16-4S$ 1,272
Wed 22-408:45
PDX
-
SIN
2 stops40h 30m
Qatar Airways
Fri 1-501:30
SIN
-
PDX
2 stops32h 06m
Qatar Airways
Deal found 17-4S$ 1,323
Fri 23-1018:51
BOI
-
SIN
1 stop22h 49m
Multiple Airlines
Sun 1-1109:15
SIN
-
BOI
1 stop26h 39m
Multiple Airlines
Deal found 20-4S$ 1,329
Wed 25-1111:57
PDX
-
SIN
2 stops28h 48m
Qatar Airways
Thu 10-1203:15
SIN
-
PDX
2 stops27h 40m
Qatar Airways
Deal found 19-4S$ 1,331
Wed 22-408:45
PDX
-
SIN
2 stops33h 35m
Qatar Airways
Sun 3-519:40
SIN
-
PDX
2 stops37h 56m
Qatar Airways
Deal found 16-4S$ 1,332

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 21 April 2026.

Round-trip from

S$ 1,195

One-way from

S$ 398

Popular in

December

Cheapest in

May

Average price

S$ 1,218
Singapore Airlines
  • Singapore Airlines
  • 6-10-27-10
  • 2 total stops
  • 42h 35m total
  • Oregon to Singapore
Search Deals
5-5
  • 5-5
  • 3 total stops
  • 52h 38m total
  • Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (S$ 228 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (S$ 91 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 21 April 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

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Sat 17-10

08:18-00:55

2 stops26h 37m

Singapore Changi

Mon 26-10

09:15-17:04

1 stop21h 49m

S$ 1,474

EugeneSingapore

EUG - SIN

EUGSIN

Eugene

Mon 17-8

17:43-17:35

1 stop32h 52m

Singapore Changi

Fri 21-8

20:45-16:29

1 stop34h 44m

S$ 1,538

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Fri 24-7

21:45-07:25

3 stops42h 40m

Singapore Changi

Mon 10-8

03:15-16:55

2 stops28h 40m

S$ 1,613

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 10-9

14:50-07:40

1 stop25h 50m

Singapore Changi

Thu 24-9

09:25-21:55

2 stops27h 30m

S$ 1,641

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 18-5

07:00-13:55

2 stops39h 55m

Singapore Changi

Tue 9-6

15:20-09:02

2 stops32h 42m

S$ 1,726

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Sun 9-8

08:03-21:15

2 stops47h 12m

Singapore Changi

Wed 19-8

19:40-22:27

2 stops40h 47m

S$ 1,772

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Sun 9-8

08:03-21:15

2 stops47h 12m

Singapore Changi

Sat 15-8

19:40-22:45

2 stops41h 05m

S$ 1,788

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Sat 9-5

08:11-13:55

2 stops39h 44m

Singapore Changi

Thu 21-5

13:10-11:03

2 stops35h 53m

S$ 1,802

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Wed 5-8

06:23-15:45

2 stops43h 22m

Singapore Changi

Wed 19-8

19:40-22:27

2 stops40h 47m

S$ 1,853

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Mon 10-8

10:52-15:45

2 stops38h 53m

Singapore Changi

Wed 12-8

03:15-22:07

2 stops32h 52m

S$ 1,863

Flights are sorted by cheapest return flights first.

Deals found on 16-4

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, April is the cheapest month in which you can book a flight from Oregon to Singapore (average of S$ 684). Flying from Oregon to Singapore in July is currently the most expensive (average of S$ 1,096). 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$ 2,068, EVA Air can have you in Singapore from Oregon in 22h 05m. 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, April is the cheapest month in which you can book a flight from Oregon to Singapore (average of S$ 684). Flying from Oregon to Singapore in July is currently the most expensive (average of S$ 1,096). 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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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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