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Cheap flights from Oregon to Singapore from S$ 530

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 4-8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
17 Jul — 24 Jul1
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 17 June 2026.

Mon 17-811:15
PDX
-
SIN
1 stop28h 00m
United Airlines
Tue 1-920:35
SIN
-
PDX
1 stop28h 36m
United Airlines
Deal found 15-6S$ 1,142
Tue 3-1113:39
PDX
-
SIN
1 stop38h 36m
United Airlines
Tue 10-1110:10
SIN
-
PDX
1 stop20h 17m
United Airlines
Deal found 15-6S$ 1,150
Thu 13-805:30
PDX
-
SIN
1 stop22h 05m
United Airlines
Mon 31-811:05
SIN
-
PDX
2 stops24h 54m
United Airlines
Deal found 12-6S$ 1,155
Tue 3-1113:39
PDX
-
SIN
1 stop38h 36m
United Airlines
Thu 12-1110:10
SIN
-
PDX
1 stop30h 44m
United Airlines
Deal found 15-6S$ 1,158
Wed 4-1105:35
PDX
-
SIN
1 stop22h 40m
United Airlines
Thu 12-1106:35
SIN
-
PDX
2 stops34h 19m
United Airlines
Deal found 15-6S$ 1,166
Thu 13-809:00
PDX
-
SIN
2 stops24h 45m
ANA
Mon 31-806:15
SIN
-
PDX
2 stops23h 32m
ANA
Deal found 12-6S$ 1,169
Sat 15-809:00
PDX
-
SIN
1 stop30h 15m
United Airlines
Mon 31-808:45
SIN
-
PDX
1 stop27h 14m
United Airlines
Deal found 16-6S$ 1,186
Tue 3-1118:59
PDX
-
SIN
2 stops33h 16m
United Airlines
Sun 8-1122:20
SIN
-
PDX
1 stop18h 34m
United Airlines
Deal found 15-6S$ 1,191
Sun 6-910:00
BOI
-
SIN
2 stops24h 20m
Multiple Airlines
Sun 13-908:05
SIN
-
BOI
2 stops26h 20m
Multiple Airlines
Deal found 15-6S$ 1,410
Wed 2-916:20
BOI
-
SIN
2 stops30h 20m
STARLUX Airlines
Sun 13-914:00
SIN
-
BOI
2 stops22h 38m
STARLUX Airlines
Deal found 12-6S$ 1,463
Wed 2-916:20
BOI
-
SIN
2 stops30h 20m
Multiple Airlines
Sun 13-914:00
SIN
-
BOI
2 stops22h 38m
Multiple Airlines
Deal found 16-6S$ 1,472
Sat 12-917:40
BOI
-
SIN
2 stops34h 55m
United Airlines
Sun 20-920:35
SIN
-
BOI
2 stops31h 00m
United Airlines
Deal found 15-6S$ 1,473

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 17 June 2026.

Round-trip from

S$ 1,142

One-way from

S$ 530

Popular in

December

Cheapest in

January

Average price

S$ 1,660
United Airlines
  • United Airlines
  • 4-11-11-11
  • 2 total stops
  • 41h 14m total
  • Oregon to Singapore
Search Deals
United Airlines
  • United Airlines
  • 21-9
  • 2 total stops
  • 35h 28m total
  • Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (S$ 207 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (S$ 103 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 17 June 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

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 4-11

05:35-20:15

1 stop22h 40m

Singapore Changi

Wed 2-12

22:20-00:54

1 stop18h 34m

S$ 1,142

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 17-8

10:50-06:15

2 stops28h 25m

Singapore Changi

Tue 1-9

08:45-21:05

2 stops27h 20m

S$ 1,148

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 13-8

05:30-18:35

1 stop22h 05m

Singapore Changi

Mon 31-8

11:05-20:59

2 stops24h 54m

S$ 1,155

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 15-8

09:00-06:15

1 stop30h 15m

Singapore Changi

Mon 31-8

08:45-22:45

1 stop29h 00m

S$ 1,186
Fastest return journey

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 11-11

07:30-20:15

1 stop20h 45m

Singapore Changi

Mon 7-12

22:20-00:54

1 stop18h 34m

S$ 1,266

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 15-8

07:05-23:55

2 stops25h 50m

Singapore Changi

Sun 30-8

01:25-17:14

2 stops30h 49m

S$ 1,287

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Wed 2-9

16:20-12:40

2 stops30h 20m

Singapore Changi

Sun 13-9

14:00-22:38

2 stops22h 38m

S$ 1,472

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Sun 6-9

19:05-06:15

1 stop21h 10m

Singapore Changi

Sun 13-9

08:45-21:31

1 stop26h 46m

S$ 1,482

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Wed 2-9

19:05-06:15

1 stop21h 10m

Singapore Changi

Sun 13-9

08:45-19:19

1 stop24h 34m

S$ 1,482

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Thu 10-9

11:50-06:15

1 stop28h 25m

Singapore Changi

Mon 14-9

08:45-21:31

1 stop26h 46m

S$ 1,482

Flights are sorted by cheapest return flights first.

Deals found on 15-6

Showing 1-10 of 31 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, August is the cheapest month in which you can book a flight from Oregon to Singapore (average of S$ 268). Flying from Oregon to Singapore in June is currently the most expensive (average of S$ 1,218). 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?

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 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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$ 1,142, United Airlines can have you in Singapore from Oregon in 22h 40m. 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, August is the cheapest month in which you can book a flight from Oregon to Singapore (average of S$ 268). Flying from Oregon to Singapore in June is currently the most expensive (average of S$ 1,218). 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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