Find flights
When to book
Airlines
FAQs

Cheap flights from Oregon to Singapore from S$ 548

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 28-4. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
5 Apr — 12 Apr1
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 31 March 2025.

Round-trip from

S$ 946

One-way from

S$ 548

Popular in

December

Cheapest in

February

Average price

S$ 1,400
Air Canada
  • Air Canada
  • 4-9-25-9
  • 2 total stops
  • 45h 16m total
  • Oregon to Singapore
Search Deals
United Airlines
  • United Airlines
  • 28-4
  • 1 total stop
  • 24h 00m total
  • Oregon to Singapore
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (S$ 117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (S$ 59 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

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 31 March 2025.

Thu 4-915:25PDX - SIN
1 stop24h 40mAir Canada
Thu 25-909:10SIN - PDX
1 stop20h 36mAir Canada
Deal found 30-3S$ 946
Sun 11-519:40PDX - SIN
2 stops38h 10mMultiple Airlines
Thu 29-509:10SIN - PDX
1 stop20h 30mMultiple Airlines
Deal found 30-3S$ 1,005
Mon 15-905:40BOI - SIN
2 stops33h 20mDelta
Thu 25-907:30SIN - BOI
2 stops30h 29mDelta
Deal found 31-3S$ 1,073
Wed 17-907:00PDX - SIN
1 stop21h 10mSingapore Airlines
Tue 30-909:15SIN - PDX
1 stop19h 35mSingapore Airlines
Deal found 30-3S$ 1,119
Sun 4-507:23PDX - SIN
2 stops30h 37mDelta
Sat 10-522:30SIN - PDX
2 stops37h 22mDelta
Deal found 31-3S$ 1,194
Fri 18-406:00PDX - SIN
1 stop21h 25mUnited Airlines
Sat 3-509:00SIN - PDX
1 stop21h 05mUnited Airlines
Deal found 31-3S$ 1,227
Thu 15-514:00BOI - SIN
1 stop26h 45mUnited Airlines
Fri 30-508:45SIN - BOI
1 stop26h 59mUnited Airlines
Deal found 29-3S$ 1,241
Thu 8-507:40PDX - SIN
2 stops25h 00mKorean Air
Wed 14-501:10SIN - PDX
2 stops29h 58mKorean Air
Deal found 30-3S$ 1,245
Sun 23-1108:40BOI - SIN
2 stops24h 30mKorean Air
Wed 3-1211:00SIN - BOI
2 stops27h 20mKorean Air
Deal found 30-3S$ 1,249
Wed 17-907:00PDX - SIN
2 stops26h 20mAmerican Airlines
Mon 29-901:55SIN - PDX
2 stops25h 50mAmerican Airlines
Deal found 30-3S$ 1,257
Tue 16-907:00PDX - SIN
2 stops32h 10mJapan Airlines
Mon 29-901:55SIN - PDX
2 stops34h 35mJapan Airlines
Deal found 31-3S$ 1,284
Wed 7-516:20BOI - SIN
1 stop35h 15mMultiple Airlines
Mon 12-520:45SIN - BOI
1 stop29h 57mMultiple Airlines
Deal found 31-3S$ 1,343

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 31 March 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

10:10-07:05

1 stop29h 55m

Singapore Changi

Thu 25-9

09:10-18:46

1 stop24h 36m

S$ 946

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 11-5

19:40-00:50

2 stops38h 10m

Singapore Changi

Thu 29-5

09:10-14:40

1 stop20h 30m

S$ 1,005

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Mon 15-9

05:40-05:00

2 stops33h 20m

Singapore Changi

Thu 25-9

07:30-23:59

2 stops30h 29m

S$ 1,073

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 17-9

07:00-19:10

1 stop21h 10m

Singapore Changi

Tue 30-9

09:15-13:50

1 stop19h 35m

S$ 1,119

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 4-5

07:23-05:00

2 stops30h 37m

Singapore Changi

Sat 10-5

22:30-20:52

2 stops37h 22m

S$ 1,194

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Fri 18-4

06:00-18:25

1 stop21h 25m

Singapore Changi

Sat 3-5

09:00-15:05

1 stop21h 05m

S$ 1,227

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Thu 15-5

14:00-06:45

1 stop26h 45m

Singapore Changi

Fri 30-5

08:45-21:44

1 stop26h 59m

S$ 1,241

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 8-5

07:40-23:40

2 stops25h 00m

Singapore Changi

Wed 14-5

01:10-16:08

2 stops29h 58m

S$ 1,245

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 17-9

07:00-00:20

2 stops26h 20m

Singapore Changi

Mon 29-9

01:55-12:45

2 stops25h 50m

S$ 1,257

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 16-9

07:00-06:10

2 stops32h 10m

Singapore Changi

Mon 29-9

01:55-21:30

2 stops34h 35m

S$ 1,284

Flights are sorted by cheapest return flights first.

Deals found on 30-3

Showing 1-10 of 25 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 31 March 2025.
Get a feel of what it's like to fly with Korean Air, Japan Airlines and ANA 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
1,051 reviews
Check prices

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

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
1,051 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

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
1,440 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

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
831 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

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.
Singapore Airlines
8.1
Very Good
1,286 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

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.
Delta
8.0
Very Good
7,899 reviews
Korean Air
8.4
Very Good
1,051 reviews
Check prices

Comfort

8.3

Boarding

8.5

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

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$ 548. Users have also found prices from S$ 555 and S$ 636 on ANA 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Oregon to Singapore?

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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.