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Cheap flights from Oregon to Singapore from S$ 535

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 9-8. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
5 May — 12 May1
1 adult

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 30 April 2025.

Round-trip from

S$ 925

One-way from

S$ 535

Popular in

December

Cheapest in

February

Average price

S$ 1,361
Air Canada
  • Air Canada
  • 4-9-25-9
  • 2 total stops
  • 54h 41m total
  • Oregon to Singapore
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United Airlines
  • United Airlines
  • 9-8
  • 2 total stops
  • 28h 20m total
  • Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (S$ 191 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (S$ 64 potential savings vs. average return price).
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Average for round-trip flights in April 2025
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Find flight deals from Oregon to Singapore

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 30 April 2025.

Thu 4-910:00PDX - SIN
1 stop30h 05mAir Canada
Thu 25-909:10SIN - PDX
1 stop24h 36mAir Canada
Deal found 29-4S$ 925
Tue 23-906:15PDX - SIN
1 stop33h 50mMultiple Airlines
Wed 8-1008:00SIN - PDX
2 stops25h 46mMultiple Airlines
Deal found 30-4S$ 977
Wed 15-1007:00PDX - SIN
1 stop21h 10mSingapore Airlines
Wed 29-1009:15SIN - PDX
1 stop19h 04mSingapore Airlines
Deal found 29-4S$ 1,044
Mon 15-908:40BOI - SIN
2 stops30h 20mDelta
Thu 25-907:30SIN - BOI
2 stops25h 01mDelta
Deal found 30-4S$ 1,049
Sat 1-1106:00PDX - SIN
2 stops27h 10mKorean Air
Sat 15-1101:30SIN - PDX
2 stops31h 36mKorean Air
Deal found 29-4S$ 1,057
Fri 16-507:45BOI - SIN
2 stops31h 15mKorean Air
Thu 22-501:10SIN - BOI
2 stops36h 18mKorean Air
Deal found 29-4S$ 1,057
Tue 23-907:45PDX - SIN
1 stop19h 40mUnited Airlines
Wed 8-1008:45SIN - PDX
1 stop26h 56mUnited Airlines
Deal found 29-4S$ 1,154
Thu 4-905:30PDX - SIN
2 stops32h 30mDelta
Wed 24-901:10SIN - PDX
2 stops33h 03mDelta
Deal found 30-4S$ 1,167
Wed 1-1007:45BOI - SIN
1 stop20h 40mUnited Airlines
Fri 10-1008:45SIN - BOI
1 stop24h 24mUnited Airlines
Deal found 29-4S$ 1,179
Wed 1-1012:43BOI - SIN
2 stops45h 52mChina Airlines
Thu 9-1002:00SIN - BOI
2 stops34h 59mChina Airlines
Deal found 29-4S$ 1,668
Wed 23-716:40BOI - SIN
1 stop25h 10mSingapore Airlines
Mon 28-720:45SIN - BOI
1 stop33h 12mSingapore Airlines
Deal found 29-4S$ 1,940
Sun 22-605:15PDX - SIN
2 stops43h 30mQatar Airways
Sat 28-603:10SIN - PDX
2 stops42h 10mQatar Airways
Deal found 30-4S$ 2,050

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 30 April 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

Thu 4-9

10:00-07:05

1 stop30h 05m

Singapore Changi

Thu 25-9

09:10-18:46

1 stop24h 36m

S$ 925

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 23-9

06:15-07:05

1 stop33h 50m

Singapore Changi

Wed 8-10

08:00-18:46

2 stops25h 46m

S$ 977

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 15-10

07:00-19:10

1 stop21h 10m

Singapore Changi

Wed 29-10

09:15-13:19

1 stop19h 04m

S$ 1,044

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Mon 15-9

08:40-05:00

2 stops30h 20m

Singapore Changi

Thu 25-9

07:30-18:31

2 stops25h 01m

S$ 1,049

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Fri 16-5

07:45-05:00

2 stops31h 15m

Singapore Changi

Fri 23-5

07:30-23:28

2 stops29h 58m

S$ 1,057

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 23-9

07:45-18:25

1 stop19h 40m

Singapore Changi

Wed 8-10

08:45-20:41

1 stop26h 56m

S$ 1,154

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 4-9

05:30-05:00

2 stops32h 30m

Singapore Changi

Wed 24-9

01:10-19:13

2 stops33h 03m

S$ 1,167

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Wed 1-10

07:45-18:25

1 stop20h 40m

Singapore Changi

Fri 10-10

08:45-19:09

1 stop24h 24m

S$ 1,179

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 13-5

09:10-23:40

2 stops23h 30m

Singapore Changi

Sat 19-7

07:30-14:53

2 stops22h 23m

S$ 1,225

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Wed 1-10

12:43-00:35

2 stops45h 52m

Singapore Changi

Thu 9-10

02:00-22:59

2 stops34h 59m

S$ 1,668

Flights are sorted by cheapest return flights first.

Deals found on 29-4

Showing 1-10 of 29 results
1
2
3

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

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated 30 April 2025.
Get a feel of what it's like to fly with Korean Air, Japan Airlines and China Airlines from Oregon to Singapore by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,066 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Japan Airlines
8.3
Very Good
1,459 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
China Airlines
8.3
Very Good
732 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
ANA
8.3
Very Good
852 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Fiji Airways
8.1
Very Good
190 reviews
Korean Air
8.4
Very Good
1,066 reviews
Check prices

Comfort

8.3

Food

8.1

Boarding

8.5

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

  • What are the cheapest airlines to fly from Oregon to Singapore one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as S$ 535. Users have also found prices from S$ 598 and S$ 621 on Korean Air and Air Canada, respectively.

  • 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.

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