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$537+ Cheap flights from Portland (PDX) to Singapore (SIN)

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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SIN
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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The best prices from Portland to Singapore Changi are usually found in October or November, booked 62 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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 December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$991
(United Airlines)

One-way from

$537
(oojo)

Popular in

July

Cheapest in

October

Average price

$1,519
Provider with most accurate pricing for Portland-Singapore Changi flight deals.
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Provider most trusted by Cheapflights users for Portland-Singapore Changi flights.
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From Portland to Singapore Changi
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One-way flight from Portland to Singapore Changi
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High demand for flights, 10% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in December 2024
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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 December 18, 2024.

This Expedia deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/187:05 pmPDX - SIN
2 stops42h 35mMultiple Airlines
Wed 12/252:45 pmSIN - PDX
2 stops22h 58mMultiple Airlines
Deal found 12/17$1,951
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/185:00 amPDX - SIN
2 stops47h 15mUnited Airlines
Wed 12/2510:20 pmSIN - PDX
1 stop28h 01mUnited Airlines
Deal found 12/17$1,965
This Justfly.com deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/183:25 pmPDX - SIN
1 stop24h 30mAir Canada
Sat 1/410:00 amSIN - PDX
1 stop28h 09mAir Canada
Deal found 12/17$2,254
This Arangrant deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/298:00 pmPDX - SIN
2 stops25h 25mSTARLUX Airlines
Fri 1/102:45 pmSIN - PDX
2 stops20h 35mSTARLUX Airlines
Deal found 12/18$6,230
This Cathay Pacific deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/296:33 pmPDX - SIN
3 stops29h 47mCathay Pacific
Fri 1/108:00 amSIN - PDX
2 stops26h 59mCathay Pacific
Deal found 12/17$8,760
This KLM deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/291:25 pmPDX - SIN
1 stop34h 50mKLM
Thu 1/91:40 amSIN - PDX
1 stop25h 45mKLM
Deal found 12/18$10,016
This KAYAK deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2212:41 amPDX - SIN
2 stops40h 04mQatar Airways
Thu 1/23:15 amSIN - PDX
2 stops31h 21mQatar Airways
Deal found 12/17$12,608
This KAYAK deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2212:59 amPDX - SIN
2 stops49h 26mBritish Airways
Fri 1/311:15 pmSIN - PDX
2 stops33h 22mBritish Airways
Deal found 12/17$19,840

Find flights from Portland to Singapore within your budget

Customize 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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 1/13

7:05 am-8:15 pm

1 stop21h 10m

Singapore Changi

Thu 1/23

10:10 am-8:37 pm

1 stop26h 27m

$991

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 1/13

8:10 am-6:40 am

2 stops30h 30m

Singapore Changi

Sun 1/26

2:20 am-3:57 pm

2 stops29h 37m

$996

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 1/13

7:10 am-5:00 am

2 stops29h 50m

Singapore Changi

Wed 1/22

1:30 am-6:54 pm

2 stops33h 24m

$1,005

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 2/10

2:40 pm-7:05 pm

1 stop36h 25m

Singapore Changi

Fri 2/28

9:15 am-1:01 pm

1 stop19h 46m

$1,021

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 2/9

3:25 pm-7:55 am

1 stop24h 30m

Singapore Changi

Sun 2/16

10:00 am-10:09 pm

1 stop28h 09m

$1,022

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 2/16

7:05 pm-12:25 am

2 stops37h 20m

Singapore Changi

Sat 2/22

10:00 am-2:44 pm

1 stop20h 44m

$1,054

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 4/6

6:55 pm-5:00 am

2 stops43h 05m

Singapore Changi

Sun 4/20

10:30 pm-5:05 pm

2 stops33h 35m

$1,109

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 1/9

6:03 am-12:55 am

2 stops26h 52m

Singapore Changi

Tue 1/21

10:45 am-6:24 pm

2 stops23h 39m

$1,154

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 2/9

11:45 am-8:45 am

2 stops29h 00m

Singapore Changi

Sat 2/15

3:15 am-9:54 pm

2 stops34h 39m

$1,180

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 1/16

6:00 am-12:50 am

2 stops26h 50m

Singapore Changi

Wed 1/22

2:20 am-2:48 pm

1 stop28h 28m

$1,189

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 23 results
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Compare providers for flights from Portland to Singapore

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Singapore in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Singapore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Singapore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Singapore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Singapore flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Singapore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Portland to Singapore. Price data was last updated on December 13, 2024.

The price you pay for your flight from Portland to Singapore may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Portland to Singapore?

Currently, September is the cheapest month in which you can book a flight from Portland to Singapore (average of $1,011). Flying from Portland to Singapore in December is currently the most expensive (average of $1,684). 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.

What is the cheapest time of day to fly from PDX to SIN?

Find hourly flight availability from Portland to Singapore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

It’s optimal to fly from Portland to Singapore at noon. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Portland to Singapore?

Use this chart to determine the cheapest time to fly round-trip from Portland to Singapore. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Singapore flight should consider departing on Monday at noon when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 5.9 - 10.6 inches per month. December is typically the wettest month, when rainfall can reach 10.6 in. July is typically the driest time to visit Singapore when rainfall is around 5.9 in.

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 82.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 78.8 F).

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 December 18, 2024.
Read reviews from past customers who have flown United Airlines and Cathay Pacific from Portland to Singapore. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,018 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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.

Korean Air
8.4
Very good
1,018 reviews
Korean Air
8.4
Very good
1,018 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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.

ANA
8.4
Very good
839 reviews
Korean Air
8.4
Very good
1,018 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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.

Japan Airlines
8.3
Very good
1,443 reviews
Korean Air
8.4
Very good
1,018 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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.

Singapore Airlines
8.1
Very good
1,329 reviews
Korean Air
8.4
Very good
1,018 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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.

Delta
8.0
Very good
8,604 reviews
Korean Air
8.4
Very good
1,018 reviews

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

Boarding

8.5

Crew

8.7

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?

    Flying on United Airlines is currently your cheapest option to Singapore, with prices starting at $991. Additional round-trip tickets that might be worth considering are offered by Japan Airlines and Delta, with the lowest prices starting at $996 and $1,005, respectively. United Airlines is currently priced 26% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from Portland to Singapore are Japan Airlines ($537), United Airlines ($548), and China Eastern ($550).

  • 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 vacation 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.

  • What is the cheapest month to book a flight from Portland to Singapore?

    Currently, September is the cheapest month in which you can book a flight from Portland to Singapore (average of $1,011). Flying from Portland to Singapore in December is currently the most expensive (average of $1,684). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portland to Singapore

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Singapore flights
Eugene to Singapore flights

Top 3 airlines flying from Portland to Singapore

Discover the top 3 airlines that operate flights from Portland to Singapore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$845Average$1,266FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$1,013Average$1,332FlexibilityNo cancel feeOn-time67%
Singapore AirlinesCheapest$1,044Average$1,298FlexibilityNo cancel feeOn-time81%
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