How long is the flight from Oregon to Singapore?

Air Canada, Japan Airlines, and United Airlines can get you from Oregon to Singapore in just under 20h 55m. Your travel time can differ by up to 2h 55m. There are 8123 mi between Oregon and Singapore. This flight may include one or multiple stops.

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.

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).

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 vacation 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.

$457+ Flights from Oregon to Singapore

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Cheap 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 December 17, 2025.

Wed 12/317:30 amPDX - SIN

1 stop20h 45mUnited Airlines

Tue 1/610:20 pmSIN - PDX

1 stop18h 19mUnited Airlines

Deal found 12/15

$1,691

Wed 12/171:34 pmPDX - SIN

2 stops42h 06mMultiple Airlines

Wed 12/248:15 pmSIN - PDX

2 stops40h 45mMultiple Airlines

Deal found 12/16

$1,814

Wed 12/173:55 pmPDX - SIN

1 stop24h 05mUnited Airlines

Wed 12/2410:10 amSIN - PDX

1 stop24h 38mUnited Airlines

Deal found 12/16

$1,913

Fri 12/193:15 pmPDX - SIN

2 stops29h 50mMultiple Airlines

Sat 12/272:05 pmSIN - PDX

2 stops35h 10mMultiple Airlines

Deal found 12/15

$2,231

Sat 12/207:45 pmPDX - SIN

1 stop32h 30mUnited Airlines

Wed 1/710:10 amSIN - PDX

1 stop24h 46mUnited Airlines

Deal found 12/17

$2,433

Tue 12/305:51 pmEUG - SIN

2 stops27h 34mMultiple Airlines

Sat 1/102:45 pmSIN - EUG

2 stops22h 45mMultiple Airlines

Deal found 12/17

$15,872

Best flights from Oregon to Singapore
Discover carefully curated flight deals from Oregon to Singapore that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 17, 2025.

Thu 3/197:05 pmPDX - SIN

1 stop20h 55mAir Canada

Mon 4/2011:55 pmSIN - PDX

2 stops29h 45mAir Canada

Deal found 12/15

$808

Fri 1/309:50 amPDX - SIN

2 stops34h 05mMultiple Airlines

Fri 2/68:50 amSIN - PDX

1 stop21h 50mMultiple Airlines

Deal found 12/16

$895

Wed 3/256:15 amPDX - SIN

2 stops32h 10mChina Eastern

Fri 4/312:55 amSIN - PDX

2 stops30h 48mChina Eastern

Deal found 12/15

$1,001

Mon 2/27:45 amPDX - SIN

1 stop20h 30mUnited Airlines

Mon 2/1610:10 amSIN - PDX

1 stop18h 28mUnited Airlines

Deal found 12/17

$1,025

Mon 2/210:00 amBOI - SIN

2 stops23h 50mJapan Airlines

Mon 2/98:15 amSIN - BOI

2 stops21h 55mJapan Airlines

Deal found 12/16

$1,036

Mon 2/167:05 pmPDX - SIN

2 stops24h 10mAir Canada

Sun 3/16:35 amSIN - PDX

2 stops24h 05mAir Canada

Deal found 12/16

$946

Wed 3/2511:30 amPDX - SIN

3 stops40h 25mMultiple Airlines

Sat 4/48:30 pmSIN - PDX

2 stops31h 49mMultiple Airlines

Deal found 12/15

$997

Thu 2/51:35 pmPDX - SIN

1 stop26h 25mUnited Airlines

Mon 2/1610:10 amSIN - PDX

1 stop18h 28mUnited Airlines

Deal found 12/17

$1,025

Wed 3/253:15 pmPDX - SIN

2 stops29h 00mAir Canada

Sat 4/47:00 amSIN - PDX

1 stop17h 15mAir Canada

Deal found 12/15

$978

Tue 2/33:52 pmPDX - SIN

1 stop24h 08mUnited Airlines

Mon 2/1610:10 amSIN - PDX

2 stops23h 41mUnited Airlines

Deal found 12/17

$1,029

Mon 2/28:10 amBOI - SIN

1 stop43h 55mMultiple Airlines

Sun 2/812:40 amSIN - BOI

2 stops27h 55mMultiple Airlines

Deal found 12/16

$1,041

Tue 1/67:45 amPDX - SIN

1 stop20h 30mUnited Airlines

Tue 1/2010:10 amSIN - PDX

2 stops24h 00mUnited Airlines

Deal found 12/15

$1,029

Thu 1/298:10 amBOI - SIN

2 stops25h 15mMultiple Airlines

Thu 2/57:40 amSIN - BOI

2 stops29h 29mMultiple Airlines

Deal found 12/15

$1,053

Sun 2/87:05 pmBOI - SIN

1 stop21h 55mUnited Airlines

Sat 2/2110:10 amSIN - BOI

1 stop28h 28mUnited Airlines

Deal found 12/15

$1,063

Mon 2/27:45 amBOI - SIN

1 stop21h 30mUnited Airlines

Mon 2/910:20 pmSIN - BOI

1 stop28h 05mUnited Airlines

Deal found 12/16

$1,063

Wed 2/47:05 pmBOI - SIN

1 stop21h 55mUnited Airlines

Sat 2/1410:10 amSIN - BOI

1 stop26h 01mUnited Airlines

Deal found 12/16

$1,063

Thu 4/94:05 pmBOI - SIN

1 stop24h 40mUnited Airlines

Mon 4/139:00 amSIN - BOI

1 stop21h 49mUnited Airlines

Deal found 12/14

$1,063

Thu 1/292:20 pmBOI - SIN

1 stop26h 40mUnited Airlines

Thu 2/510:10 amSIN - BOI

1 stop21h 00mUnited Airlines

Deal found 12/15

$1,063

Sun 2/151:12 pmEUG - SIN

2 stops39h 03mUnited Airlines

Thu 2/1910:20 pmSIN - EUG

2 stops30h 46mUnited Airlines

Deal found 12/14

$1,129

Last-minute flights from Oregon to Singapore
Discover last-minute flight deals from Oregon to Singapore. Data last updated December 17, 2025 and is based on user searches.

Tue 1/69:50 amPDX - SIN

2 stops34h 05mMultiple Airlines

Tue 1/206:35 amSIN - PDX

2 stops27h 55mMultiple Airlines

Deal found 12/15

$990

Tue 1/67:45 amPDX - SIN

1 stop20h 30mUnited Airlines

Tue 1/2010:20 pmSIN - PDX

1 stop18h 19mUnited Airlines

Deal found 12/15

$1,025

Fri 1/167:00 pmPDX - SIN

1 stop20h 00mAir Canada

Sun 2/111:10 pmSIN - PDX

2 stops31h 30mAir Canada

Deal found 12/15

$854

Fri 1/169:50 amPDX - SIN

2 stops27h 50mMultiple Airlines

Sun 2/111:10 pmSIN - PDX

2 stops31h 30mMultiple Airlines

Deal found 12/15

$979

Thu 1/293:15 pmPDX - SIN

1 stop23h 45mAir Canada

Thu 2/58:50 amSIN - PDX

1 stop16h 25mAir Canada

Deal found 12/15

$822

Thu 1/298:10 amBOI - SIN

2 stops25h 15mMultiple Airlines

Thu 2/57:40 amSIN - BOI

2 stops29h 29mMultiple Airlines

Deal found 12/15

$1,053

Thu 1/292:20 pmBOI - SIN

1 stop26h 40mUnited Airlines

Thu 2/510:10 amSIN - BOI

1 stop21h 00mUnited Airlines

Deal found 12/15

$1,063

Fri 1/309:50 amPDX - SIN

2 stops34h 05mMultiple Airlines

Fri 2/68:50 amSIN - PDX

1 stop21h 50mMultiple Airlines

Deal found 12/16

$895

Fri 1/309:50 amPDX - SIN

2 stops44h 05mAir Canada

Mon 2/166:35 amSIN - PDX

2 stops42h 40mAir Canada

Deal found 12/17

$957

Sat 1/317:00 pmPDX - SIN

2 stops27h 50mAir Canada

Mon 2/166:35 amSIN - PDX

2 stops42h 40mAir Canada

Deal found 12/17

$952

Sat 1/311:55 pmBOI - SIN

1 stop36h 50mMultiple Airlines

Sat 2/78:15 pmSIN - BOI

2 stops40h 54mMultiple Airlines

Deal found 12/17

$1,048

Sat 1/312:20 pmBOI - SIN

1 stop26h 40mUnited Airlines

Sat 2/710:10 amSIN - BOI

1 stop21h 00mUnited Airlines

Deal found 12/17

$1,202

One-way flights from Oregon to Singapore
Search for one-way flight options from Oregon to Singapore. Find affordable one-way fares based on user searches. Data last updated December 17, 2025.

Wed 1/79:50 amPDX - SIN

3 stops34h 20mMultiple Airlines

Deal found 12/17

$457

Wed 1/147:00 pmPDX - SIN

1 stop20h 00mAir Canada

Deal found 12/17

$466

Mon 2/97:05 pmPDX - SIN

2 stops27h 45mAir Canada

Deal found 12/16

$473

Wed 1/149:50 amPDX - SIN

2 stops34h 05mMultiple Airlines

Deal found 12/16

$480

Sat 1/107:10 amPDX - SIN

3 stops54h 15mMultiple Airlines

Deal found 12/15

$484

Fri 2/137:05 pmPDX - SIN

1 stop19h 55mAir Canada

Deal found 12/16

$499

Wed 1/145:51 pmPDX - SIN

2 stops26h 04mCathay Pacific

Deal found 12/16

$509

Find flight deals from Oregon to Singapore

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$802 (Air Canada)
One-way from	$457 (Mytrip)
Popular in	December
Cheapest in	September
Average price	$1,678

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 Oregon to Singapore

Search Deals

One-way flight from Oregon to Singapore

Search Deals

Highest demand for flights based on searches. 15% potential increase in price ($175 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($63 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 3/19

7:05 pm-7:00 am

1 stop20h 55m

Singapore Changi

Mon 4/20

11:55 pm-2:40 pm

2 stops29h 45m

$808

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Fri 1/30

9:50 am-11:55 am

2 stops34h 05m

Singapore Changi

Fri 2/6

8:50 am-2:40 pm

1 stop21h 50m

$895

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 2/16

7:05 pm-11:15 am

2 stops24h 10m

Singapore Changi

Sun 3/1

6:35 am-2:40 pm

2 stops24h 05m

$946

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 3/25

3:15 pm-11:15 am

2 stops29h 00m

Singapore Changi

Sat 4/4

7:00 am-9:15 am

1 stop17h 15m

$978

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 3/25

11:30 am-6:55 pm

3 stops40h 25m

Singapore Changi

Sat 4/4

8:30 pm-1:19 pm

2 stops31h 49m

$997

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 3/25

6:15 am-5:25 am

2 stops32h 10m

Singapore Changi

Fri 4/3

12:55 am-4:43 pm

2 stops30h 48m

$1,001

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 2/2

7:45 am-8:15 pm

1 stop20h 30m

Singapore Changi

Mon 2/16

10:10 am-12:38 pm

1 stop18h 28m

$1,025

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 2/5

1:35 pm-8:00 am

1 stop26h 25m

Singapore Changi

Mon 2/16

10:10 am-12:38 pm

1 stop18h 28m

$1,025

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 2/3

3:52 pm-8:00 am

1 stop24h 08m

Singapore Changi

Mon 2/16

10:10 am-5:51 pm

2 stops23h 41m

$1,029

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 1/6

7:45 am-8:15 pm

1 stop20h 30m

Singapore Changi

Tue 1/20

10:10 am-6:10 pm

2 stops24h 00m

$1,029

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 27 results

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 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.

Cheapflights Insights

Everything you need to know about your flight from Oregon to Singapore

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

Currently, September is the cheapest month in which you can book a flight from Oregon to Singapore (average of $693). Flying from Oregon to Singapore in December is currently the most expensive (average of $827). 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 OR to SG?

It’s optimal to fly from Oregon to Singapore at noon. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the morning.

Related info for your journey

How long is the flight from Oregon to Singapore?
Air Canada, Japan Airlines, and United Airlines can get you from Oregon to Singapore in just under 20h 55m. Your travel time can differ by up to 2h 55m. There are 8123 mi between Oregon and Singapore. This flight may include one or multiple stops.
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 vacation 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.
What is the cheapest month to book a flight from Oregon to Singapore?
Currently, September is the cheapest month in which you can book a flight from Oregon to Singapore (average of $693). Flying from Oregon to Singapore in December is currently the most expensive (average of $827). 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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Top 5 airlines flying from Oregon to Singapore

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$694	Average$817	FlexibilityNo cancel fee	On-time67%
Korean Air	Cheapest$792	Average$946	FlexibilityNo cancel fee	On-time81%
Delta	Cheapest$800	Average$921	FlexibilityNo cancel fee	On-timeN/A
Singapore Airlines	Cheapest$837	Average$1,110	FlexibilityNo cancel fee	On-time81%
United Airlines	Cheapest$868	Average$1,032	FlexibilityNo cancel fee	On-time69%

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$457+ Cheap flights from Oregon 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Oregon to Singapore with Cheapflights

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Cheap flight deals from Oregon to Singapore

Cheapest flights from Oregon to SingaporeExplore 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 December 17, 2025.

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 December 17, 2025.

Find flight deals from Oregon to Singapore

Keep the following information in mind while searching for Oregon to Singapore flight deals. Data was last updated December 17, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Oregon to Singapore that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Oregon to Singapore

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

What is the cheapest time of day to fly from OR to SG?

Find hourly flight availability from Oregon 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 17, 2025.

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.

How long is the flight from Oregon to Singapore?

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

How can I find direct flights from Oregon to Singapore?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Oregon to Singapore

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Oregon to Singapore

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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 December 17, 2025.