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$399+ Cheap flights from Portland (PDX) to Singapore

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
Jan 28 — Feb 41
Tue 1/28
Tue 2/4
1 adult, Economy
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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 (SG0). 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 January 23, 2025.

Round-trip from

$747
(United Airlines)

One-way from

$399
(United)
From Portland to Singapore
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One-way flight from Portland to Singapore
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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 January 23, 2025.

This United Airlines deal was found by Cheapflights users on 1/22. 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.
Mon 4/2810:21 amPDX - SIN
1 stop29h 24mUnited Airlines
Fri 5/238:45 amSIN - PDX
1 stop27h 02mUnited Airlines
Deal found 1/22$747
This Delta deal was found by Cheapflights users on 1/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/225:15 amPDX - SIN
2 stops31h 45mDelta
Thu 2/271:30 amSIN - PDX
2 stops35h 20mDelta
Deal found 1/22$800
This FlightHub deal was found by Cheapflights users on 1/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/266:00 amPDX - SIN
2 stops26h 10mKorean Air
Tue 4/17:30 amSIN - PDX
2 stops20h 55mKorean Air
Deal found 1/21$931
This FlightHub deal was found by Cheapflights users on 1/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:40 amPDX - SIN
1 stop20h 30mSingapore Airlines
Tue 5/209:15 amSIN - PDX
1 stop19h 21mSingapore Airlines
Deal found 1/22$979
This Mytrip deal was found by Cheapflights users on 1/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/36:00 amPDX - SIN
2 stops26h 55mMultiple Airlines
Fri 3/211:30 pmSIN - PDX
3 stops35h 50mMultiple Airlines
Deal found 1/22$1,002
This Justfly.com deal was found by Cheapflights users on 1/22. 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.
Mon 4/2110:10 amPDX - SIN
2 stops29h 30mANA
Tue 5/66:15 amSIN - PDX
2 stops27h 02mANA
Deal found 1/22$1,038
This Ovago deal was found by Cheapflights users on 1/22. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/247:40 amPDX - SIN
2 stops25h 40mJapan Airlines
Tue 5/68:05 amSIN - PDX
2 stops23h 14mJapan Airlines
Deal found 1/22$1,079
This oojo deal was found by Cheapflights users on 1/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/195:37 pmPDX - SIN
3 stops30h 43mCathay Pacific
Wed 2/266:40 amSIN - PDX
2 stops23h 25mCathay Pacific
Deal found 1/22$1,176
This Cheapflightsfares deal was found by Cheapflights users on 1/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/97:05 amPDX - SIN
2 stops33h 40mQatar Airways
Sat 2/153:15 amSIN - PDX
2 stops34h 39mQatar Airways
Deal found 1/22$1,230
This Air Canada deal was found by Cheapflights users on 1/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/17:40 pmPDX - SIN
1 stop20h 25mAir Canada
Wed 5/219:50 amSIN - PDX
2 stops23h 55mAir Canada
Deal found 1/22$1,422
This Asiana Airlines deal was found by Cheapflights users on 1/22. 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 Asiana Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/307:30 pmPDX - SIN
2 stops35h 00mAsiana Airlines
Sun 5/1810:50 pmSIN - PDX
2 stops55h 08mAsiana Airlines
Deal found 1/22$1,573

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 January 23, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 4/28

10:21 am-6:45 am

1 stop29h 24m

Singapore Changi

Fri 5/23

8:45 am-8:47 pm

1 stop27h 02m

$747

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 2/22

5:15 am-5:00 am

2 stops31h 45m

Singapore Changi

Fri 3/7

11:00 am-8:50 pm

2 stops25h 50m

$800

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 2/26

6:00 am-12:10 am

2 stops26h 10m

Singapore Changi

Tue 4/1

7:30 am-1:25 pm

2 stops20h 55m

$931

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 5/1

7:40 am-7:10 pm

1 stop20h 30m

Singapore Changi

Tue 5/20

9:15 am-1:36 pm

1 stop19h 21m

$979

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 3/3

6:00 am-12:55 am

2 stops26h 55m

Singapore Changi

Fri 3/21

1:30 pm-10:20 am

3 stops35h 50m

$1,002

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 4/21

10:10 am-6:40 am

2 stops29h 30m

Singapore Changi

Tue 5/6

6:15 am-6:17 pm

2 stops27h 02m

$1,038

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 4/24

7:40 am-12:20 am

2 stops25h 40m

Singapore Changi

Mon 5/5

8:05 am-4:19 pm

2 stops23h 14m

$1,079

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 2/19

5:37 pm-4:20 pm

3 stops30h 43m

Singapore Changi

Wed 2/26

6:40 am-2:05 pm

2 stops23h 25m

$1,176

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 2/9

7:05 am-8:45 am

2 stops33h 40m

Singapore Changi

Sat 2/15

3:15 am-9:54 pm

2 stops34h 39m

$1,230

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 5/1

7:40 pm-7:05 am

1 stop20h 25m

Singapore Changi

Wed 5/21

9:50 am-6:45 pm

2 stops23h 55m

$1,422

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/23

Showing 1-10 of 19 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 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.

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 SG?

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 January 23, 2025.

When flying from Portland to Singapore, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 January 23, 2025.
Read reviews from past customers who have flown United Airlines, Japan Airlines and Cathay Pacific from Portland to Singapore. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.5
Very good
1,037 reviews

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.8

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
8.5
Very good
1,037 reviews
Korean Air
8.5
Very good
1,037 reviews

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.8

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
849 reviews
Korean Air
8.5
Very good
1,037 reviews

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.8

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
1,446 reviews
Korean Air
8.5
Very good
1,037 reviews

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.8

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.

Asiana Airlines
8.3
Very good
466 reviews
Korean Air
8.5
Very good
1,037 reviews

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.8

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
1,328 reviews
Korean Air
8.5
Very good
1,037 reviews

Food

8.1

Entertainment

8.2

Overall

8.5

Comfort

8.3

Boarding

8.5

Crew

8.8

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 airport do you fly from for flights from Portland to Singapore?

    Located just 6.0 mi from the city center, Portland (PDX) is the airport most travelers will use when flying to Singapore from Portland.

  • 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 United Airlines ($399), Delta ($458), and Korean Air ($536).

  • 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

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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 January 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$784Average$1,270FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$845Average$1,266FlexibilityNo cancel feeOn-time69%
Singapore AirlinesCheapest$1,023Average$1,258FlexibilityNo cancel feeOn-time81%
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