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Cheap flights from Portland to Singapore from S$ 545

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 24-2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
22 Jan — 29 Jan1
1 adult

The best prices from Portland to Singapore Changi are usually found in October or February, booked 73 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from Portland to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 January 2025.

Round-trip from

S$ 1,028

One-way from

S$ 545

Popular in

July

Cheapest in

October

Average price

S$ 1,728
United Airlines
  • United Airlines
  • 13-4-24-5
  • 2 total stops
  • 54h 46m total
  • Portland to Singapore
United Airlines
  • United Airlines
  • 24-2
  • 1 total stop
  • 24h 06m total
  • Portland to Singapore
High demand for flights, 11% potential price rise
Best time to find cheap flights, 1% potential price drop
Average for round-trip flights in January 2025

Find flight deals from Portland to Singapore

Cheapest flights from Portland to Singapore
Explore the most affordable flight options available from Portland to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Sun 13-406:00PDX - SIN
1 stop33h 45mUnited Airlines
Sat 24-508:45SIN - PDX
1 stop21h 01mUnited Airlines
Deal found 15-1S$ 1,028
Sat 22-207:10PDX - SIN
2 stops29h 50mDelta
Fri 7-311:00SIN - PDX
2 stops25h 50mDelta
Deal found 17-1S$ 1,094
Sun 13-406:05PDX - SIN
2 stops32h 20mChina Eastern
Fri 23-500:55SIN - PDX
2 stops30h 14mChina Eastern
Deal found 15-1S$ 1,210
Sun 16-207:10PDX - SIN
2 stops25h 00mMultiple Airlines
Thu 27-201:30SIN - PDX
2 stops27h 26mMultiple Airlines
Deal found 16-1S$ 1,306
Sun 30-319:40PDX - SIN
2 stops42h 20mKorean Air
Fri 4-401:10SIN - PDX
2 stops30h 17mKorean Air
Deal found 15-1S$ 1,312
Mon 20-106:00PDX - SIN
2 stops32h 40mJapan Airlines
Wed 22-122:25SIN - PDX
2 stops32h 40mJapan Airlines
Deal found 16-1S$ 1,445
Wed 1-1007:00PDX - SIN
2 stops26h 20mAmerican Airlines
Fri 17-1001:50SIN - PDX
2 stops26h 38mAmerican Airlines
Deal found 16-1S$ 1,450
Thu 27-219:05PDX - SIN
1 stop20h 50mAir Canada
Tue 11-306:35SIN - PDX
2 stops26h 49mAir Canada
Deal found 16-1S$ 1,595
Wed 26-215:49PDX - SIN
3 stops32h 31mCathay Pacific
Tue 11-310:00SIN - PDX
2 stops26h 49mCathay Pacific
Deal found 16-1S$ 1,675
Tue 17-608:00PDX - SIN
2 stops34h 00mQatar Airways
Thu 26-602:15SIN - PDX
2 stops36h 38mQatar Airways
Deal found 16-1S$ 2,407
Sun 9-213:25PDX - SIN
1 stop34h 50mKLM
Sat 15-201:40SIN - PDX
1 stop25h 45mKLM
Deal found 16-1S$ 2,714

Find flights from Portland to Singapore within your budget

Customise your flight search to find flights from Portland 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 January 2025.

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Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 13-4

06:00-06:45

1 stop33h 45m

Singapore Changi

Sat 24-5

08:45-14:46

1 stop21h 01m

S$ 1,028

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 22-2

07:10-05:00

2 stops29h 50m

Singapore Changi

Fri 7-3

11:00-20:50

2 stops25h 50m

S$ 1,094

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 13-4

06:05-05:25

2 stops32h 20m

Singapore Changi

Fri 23-5

00:55-16:09

2 stops30h 14m

S$ 1,210

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 16-2

07:10-00:10

2 stops25h 00m

Singapore Changi

Thu 27-2

01:30-12:56

2 stops27h 26m

S$ 1,306

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 30-3

19:40-05:00

2 stops42h 20m

Singapore Changi

Fri 4-4

01:10-16:27

2 stops30h 17m

S$ 1,312

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 9-2

07:00-00:50

2 stops25h 50m

Singapore Changi

Sat 15-2

02:20-15:13

2 stops28h 53m

S$ 1,564

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 27-2

19:05-07:55

1 stop20h 50m

Singapore Changi

Tue 11-3

06:35-18:24

2 stops26h 49m

S$ 1,595

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 26-2

15:49-16:20

3 stops32h 31m

Singapore Changi

Tue 11-3

10:00-21:49

2 stops26h 49m

S$ 1,675

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 17-6

08:00-09:00

2 stops34h 00m

Singapore Changi

Thu 26-6

02:15-23:53

2 stops36h 38m

S$ 2,407

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 9-2

13:25-16:15

1 stop34h 50m

Singapore Changi

Sat 15-2

01:40-11:25

1 stop25h 45m

S$ 2,714

Flights are sorted by cheapest return flights first.

Deals found on 17-1

Showing 1-10 of 20 results
1
2

Best time to book a flight from Portland to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Portland 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.

Travel insights for flights from Portland to Singapore

Get recent, data-driven insights about flights from Portland to Singapore including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Portland to Singapore?

Use this chart to determine the optimal time to book a return flight from Portland to Singapore. Price data was last updated on 10 January 2025.

To ensure you get the cheapest price possible for a flight from Portland to Singapore, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 17 January 2025.
Get a feel of what it's like to fly with United Airlines, Delta and Japan Airlines from Portland to Singapore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.5
Very Good
1,034 reviews

Entertainment

8.2

Overall

8.5

Crew

8.7

Comfort

8.3

Boarding

8.5

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

8.5
Very Good
1,034 reviews
8.5
Very Good
1,034 reviews

Entertainment

8.2

Overall

8.5

Crew

8.7

Comfort

8.3

Boarding

8.5

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

8.4
Very Good
847 reviews
8.5
Very Good
1,034 reviews

Entertainment

8.2

Overall

8.5

Crew

8.7

Comfort

8.3

Boarding

8.5

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

8.3
Very Good
1,448 reviews
8.5
Very Good
1,034 reviews

Entertainment

8.2

Overall

8.5

Crew

8.7

Comfort

8.3

Boarding

8.5

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

8.1
Very Good
1,327 reviews
8.5
Very Good
1,034 reviews

Entertainment

8.2

Overall

8.5

Crew

8.7

Comfort

8.3

Boarding

8.5

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

8.0
Very Good
9,684 reviews
8.5
Very Good
1,034 reviews

Entertainment

8.2

Overall

8.5

Crew

8.7

Comfort

8.3

Boarding

8.5

Food

8.1

Reviews

1 / 10

Flight was short, so we did not get food, but that is expected. Only have entertainment a fair rating because no wifi is provided onboard. Good flight overall.

Related info for your journey

Find useful and relevant information for your journey from Portland to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines flying from Portland to Singapore round-trip?

    According to our current data, United Airlines (S$ 1,028), Delta (S$ 1,094), and China Eastern (S$ 1,210) offers the cheapest pricing from Portland to Singapore. United Airlines is priced at 43% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as S$ 545 on United Airlines. Other airlines that offer cheap prices include Delta from S$ 626 and Cathay Pacific from S$ 889 one-way.

  • Can I find deals for flights from Portland to Singapore that include hotel bookings?

    Yes. In addition to deals on Portland to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portland to Singapore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Singapore.

  • Can I find deals for business class flights from Portland to Singapore?

    Yes. Cheapflights offers flight deals from Portland 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

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Alternative routes for Portland to Singapore

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

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

Yes, we can. To see specific flights from Portland to Singapore with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Not ready to book yet? You can track prices for flights from Portland to Singapore on Cheapflights with our Price Alert feature and get notified when better prices are available.

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