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Cheap flights from Portland to Singapore from S$ 944

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4-9. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
26 Feb — 5 Mar1
1 adult

The best prices from Portland to Singapore Changi are usually found in February or September, 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 21 February 2025.

Round-trip from

S$ 1,012

Popular in

July

Cheapest in

February

Average price

S$ 1,233
Air Canada
  • Air Canada
  • 16-4-1-5
  • 4 total stops
  • 61h 15m total
  • Portland to Singapore
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (S$ 240 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (S$ 53 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
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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 21 February 2025.

Thu 4-919:40PDX - SIN
1 stop20h 25mAir Canada
Thu 25-909:10SIN - PDX
1 stop28h 46mAir Canada
Deal found 21-2S$ 944
Sat 1-1123:55PDX - SIN
2 stops41h 00mMultiple Airlines
Sun 30-1110:00SIN - PDX
1 stop24h 24mMultiple Airlines
Deal found 20-2S$ 1,048
Tue 4-305:15PDX - SIN
2 stops26h 55mDelta
Thu 6-301:30SIN - PDX
2 stops33h 24mDelta
Deal found 21-2S$ 1,071
Tue 15-419:30PDX - SIN
1 stop20h 15mUnited Airlines
Tue 22-409:00SIN - PDX
1 stop18h 33mUnited Airlines
Deal found 20-2S$ 1,163
Thu 4-908:00PDX - SIN
2 stops25h 20mJapan Airlines
Wed 24-901:55SIN - PDX
2 stops29h 33mJapan Airlines
Deal found 20-2S$ 1,227
Sat 1-1109:10PDX - SIN
2 stops24h 00mKorean Air
Sat 29-1101:30SIN - PDX
2 stops27h 48mKorean Air
Deal found 20-2S$ 1,246
Thu 17-406:05PDX - SIN
2 stops32h 20mChina Eastern
Tue 29-400:55SIN - PDX
2 stops29h 58mChina Eastern
Deal found 21-2S$ 1,475
Wed 9-407:00PDX - SIN
1 stop21h 10mSingapore Airlines
Thu 24-409:15SIN - PDX
1 stop19h 34mSingapore Airlines
Deal found 20-2S$ 1,627
Thu 27-215:49PDX - SIN
2 stops29h 16mCathay Pacific
Wed 12-306:40SIN - PDX
2 stops29h 04mCathay Pacific
Deal found 20-2S$ 1,716
Thu 27-213:33PDX - SIN
2 stops33h 22mQatar Airways
Tue 11-303:15SIN - PDX
2 stops34h 41mQatar Airways
Deal found 20-2S$ 1,764

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 21 February 2025.

Fly from

Portland

Fly to

Singapore

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 16-4

19:05-14:30

2 stops28h 25m

Singapore Changi

Thu 1-5

20:50-14:40

2 stops32h 50m

S$ 1,012

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 4-3

05:15-00:10

2 stops26h 55m

Singapore Changi

Thu 6-3

01:30-18:54

2 stops33h 24m

S$ 1,071

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 17-4

06:00-07:05

1 stop34h 05m

Singapore Changi

Wed 30-4

16:00-14:40

2 stops37h 40m

S$ 1,082

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 15-4

19:30-06:45

1 stop20h 15m

Singapore Changi

Tue 22-4

09:00-12:33

1 stop18h 33m

S$ 1,163

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 9-4

07:00-05:00

2 stops31h 00m

Singapore Changi

Sun 27-4

01:10-14:30

2 stops28h 20m

S$ 1,280

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 17-4

06:05-05:25

2 stops32h 20m

Singapore Changi

Tue 29-4

00:55-15:53

2 stops29h 58m

S$ 1,475

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 9-4

07:00-19:10

1 stop21h 10m

Singapore Changi

Thu 24-4

09:15-13:49

1 stop19h 34m

S$ 1,627

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 10-4

11:50-14:55

2 stops36h 05m

Singapore Changi

Sat 26-4

18:45-16:48

2 stops37h 03m

S$ 1,833

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 19-5

07:00-00:50

2 stops26h 50m

Singapore Changi

Sat 24-5

08:00-16:46

2 stops23h 46m

S$ 1,912

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 4-3

18:30-21:35

2 stops35h 05m

Singapore Changi

Thu 6-3

01:10-16:35

1 stop31h 25m

S$ 2,566

Flights are sorted by cheapest return flights first.

Deals found on 19-2

Showing 1-10 of 16 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 14 February 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 21 February 2025.
Get a feel of what it's like to fly with Korean Air, ANA 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.
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Korean Air
8.4
Very Good
1,037 reviews
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

ANA
8.4
Very Good
836 reviews
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Japan Airlines
8.3
Very Good
1,440 reviews
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Singapore Airlines
8.1
Very Good
1,297 reviews
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

Delta
8.0
Very Good
8,212 reviews
Korean Air
8.4
Very Good
1,037 reviews
Check prices

Boarding

8.5

Entertainment

8.2

Comfort

8.3

Crew

8.7

Food

8.1

Overall

8.4

Reviews

1 / 20

6.0
Good

Anonymous,Feb 2025

ATL - SBN

Regional jets are small and uncomfortable. When flying in or out of South Bend airport, that's usually what I'm on. It's the price one pays for the great convenience of using a small airport (cheap parking, no lines). The CRJ900 has engines attached to the fuselage near the rear of the plane. So, very loud in the back of the plane, and I happened to have the far back corner that also had no window. Oh well, a short flight and pleasant neighbor and cheerful attendant.

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, Air Canada (S$ 1,012), Delta (S$ 1,071), and United Airlines (S$ 1,163) offers the cheapest pricing from Portland to Singapore. Air Canada is priced at 37% lower than the current average price of a flight leaving 3 months from now.

  • 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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Eugene to Singapore flights

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