How long is the flight from Oregon to Singapore?

Air Canada, Singapore Airlines, and United Airlines can get you from Oregon to Singapore in just under 20h 45m. Your travel time can differ by up to 3h 30m. 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).

What are the most popular routes from Oregon to Singapore?

Most travelers choose Portland - Singapore Changi, Boise Air Term. Gowen Fld - Singapore Changi or Eugene - Singapore Changi when deciding on the best route from Oregon to Singapore.

What are the most popular airlines that fly from Oregon to Singapore?

When booking a flight from Oregon to Singapore, you may want to consider flying on Air Canada, United Airlines or Singapore Airlines as they are the most popular for this route.

What airport do you fly into for flights to Singapore from Oregon?

Located just 10.5 mi from the city center, Singapore Changi (SIN) is the airport most travelers will use when flying to Singapore from Oregon.

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.

$455+ Flights from Oregon to Singapore

Q: How much does it cost to fly round-trip from Oregon to Singapore?

Airfare is below average for this route at the moment. Oregon to Singapore flights typically cost between $1,369 and $2,038 in March. The cheapest round-trip price found within the last 3 days was $802 on Air Canada (Mar 19-Apr 20).

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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 16, 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

Wed 12/318:32 pmPDX - SIN

1 stop29h 13mMultiple Airlines

Tue 1/67:40 pmSIN - PDX

3 stops43h 52mMultiple Airlines

Deal found 12/14

$1,991

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

Fri 12/199:50 amPDX - SIN

1 stop29h 10mAir Canada

Sat 12/278:50 amSIN - PDX

1 stop21h 50mAir Canada

Deal found 12/15

$2,526

Sun 12/144:02 pmPDX - SIN

2 stops36h 13mUnited Airlines

Sat 1/310:20 pmSIN - PDX

1 stop36h 28mUnited Airlines

Deal found 12/14

$2,539

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 16, 2025.

Wed 1/287:00 pmPDX - SIN

2 stops24h 15mAir Canada

Wed 2/411:10 pmSIN - PDX

2 stops31h 30mAir Canada

Deal found 12/14

$831

Fri 3/136:00 amPDX - SIN

1 stop20h 45mSingapore Airlines

Sat 3/219:00 amSIN - PDX

1 stop18h 21mSingapore Airlines

Deal found 12/14

$838

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 1/77:45 amPDX - SIN

1 stop20h 30mUnited Airlines

Wed 1/1410:10 amSIN - PDX

1 stop28h 34mUnited Airlines

Deal found 12/14

$1,025

Mon 2/167:05 pmPDX - SIN

2 stops24h 10mAir Canada

Sun 3/16:35 amSIN - PDX

2 stops24h 05mAir Canada

Deal found 12/14

$946

Wed 1/285:50 pmPDX - SIN

1 stop22h 05mMultiple Airlines

Wed 2/49:15 amSIN - PDX

1 stop27h 33mMultiple Airlines

Deal found 12/13

$952

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

Wed 2/256:00 pmBOI - SIN

2 stops28h 00mMultiple Airlines

Tue 3/33:15 amSIN - BOI

2 stops34h 00mMultiple Airlines

Deal found 12/13

$1,012

Mon 2/165:35 amPDX - SIN

1 stop22h 40mUnited Airlines

Sun 3/110:10 amSIN - PDX

1 stop24h 45mUnited Airlines

Deal found 12/16

$1,039

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

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 4/96:55 pmBOI - SIN

1 stop21h 50mUnited Airlines

Mon 4/139:00 amSIN - BOI

1 stop21h 49mUnited Airlines

Deal found 12/13

$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

Wed 2/256:55 pmBOI - SIN

1 stop22h 05mUnited Airlines

Wed 3/410:10 amSIN - BOI

1 stop26h 01mUnited Airlines

Deal found 12/13

$1,063

Sun 3/158:39 amBOI - SIN

1 stop21h 36mUnited Airlines

Sat 3/2110:10 amSIN - BOI

2 stops25h 49mUnited Airlines

Deal found 12/14

$1,067

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 16, 2025 and is based on user searches.

Thu 1/17:00 amBOI - SIN

2 stops46h 15mUnited Airlines

Tue 1/610:10 amSIN - BOI

1 stop28h 38mUnited Airlines

Deal found 12/15

$1,870

Sun 1/46:15 amBOI - SIN

2 stops34h 45mUnited Airlines

Thu 1/2210:10 amSIN - BOI

2 stops22h 57mUnited Airlines

Deal found 12/14

$1,206

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

Wed 1/287:00 pmPDX - SIN

1 stop20h 00mAir Canada

Wed 2/48:30 amSIN - PDX

2 stops26h 00mAir Canada

Deal found 12/14

$829

Wed 1/282:57 pmPDX - SIN

1 stop24h 58mSingapore Airlines

Wed 2/49:15 amSIN - PDX

1 stop20h 15mSingapore Airlines

Deal found 12/14

$830

Wed 1/285:50 pmPDX - SIN

1 stop22h 05mMultiple Airlines

Wed 2/49:15 amSIN - PDX

1 stop27h 33mMultiple Airlines

Deal found 12/13

$952

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

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 16, 2025.

Thu 2/122:47 pmPDX - SIN

2 stops39h 08mMultiple Airlines

Deal found 12/13

$455

Wed 1/149:50 amPDX - SIN

1 stop29h 10mAir Canada

Deal found 12/14

$461

Thu 2/127:05 pmPDX - SIN

1 stop19h 55mAir Canada

Deal found 12/13

$471

Mon 2/97:05 pmPDX - SIN

2 stops27h 45mAir Canada

Deal found 12/16

$473

Fri 2/138:30 amPDX - SIN

2 stops45h 25mMultiple Airlines

Deal found 12/13

$477

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

Thu 1/19:50 pmBOI - SIN

3 stops47h 50mMultiple Airlines

Deal found 12/14

$788

Thu 1/15:12 pmBOI - SIN

2 stops36h 03mUnited Airlines

Deal found 12/14

$789

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	$455 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$1,678

Provider with most accurate pricing for Portland-Singapore Changi flight deals.

Search Deals

Provider most trusted by Cheapflights users for Portland-Singapore Changi flights.

Search Deals

From Oregon to Singapore Changi

Search Deals

One-way flight from Oregon to Singapore Changi

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

Wed 1/28

7:00 pm-11:15 am

2 stops24h 15m

Singapore Changi

Wed 2/4

11:10 pm-2:40 pm

2 stops31h 30m

$831

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Fri 3/13

6:00 am-5:45 pm

1 stop20h 45m

Singapore Changi

Sat 3/21

9:00 am-12:21 pm

1 stop18h 21m

$838

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 1/28

5:50 pm-7:55 am

1 stop22h 05m

Singapore Changi

Wed 2/4

9:15 am-8:48 pm

1 stop27h 33m

$952

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Wed 2/25

6:00 pm-1:00 pm

2 stops28h 00m

Singapore Changi

Tue 3/3

3:15 am-10:15 pm

2 stops34h 00m

$1,012

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 1/7

7:45 am-8:15 pm

1 stop20h 30m

Singapore Changi

Wed 1/14

10:10 am-10:44 pm

1 stop28h 34m

$1,025

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

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 2/16

5:35 am-8:15 pm

1 stop22h 40m

Singapore Changi

Sun 3/1

10:10 am-6:55 pm

1 stop24h 45m

$1,039

BoiseSingapore

BOI - SIN

BOISIN

Boise Air Term. Gowen Fld

Thu 1/29

8:10 am-12:25 am

2 stops25h 15m

Singapore Changi

Thu 2/5

7:40 am-10:09 pm

2 stops29h 29m

$1,053

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 26 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 SIN?

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.

How much does it cost to fly round-trip from Oregon to Singapore?

Related info for your journey

What airport do you fly into for flights to Singapore from Oregon?
Located just 10.5 mi from the city center, Singapore Changi (SIN) is the airport most travelers will use when flying to Singapore from Oregon.
How long is the flight from Oregon to Singapore?
Air Canada, Singapore Airlines, and United Airlines can get you from Oregon to Singapore in just under 20h 45m. Your travel time can differ by up to 3h 30m. There are 8123 mi between Oregon and Singapore. This flight may include one or multiple stops.
What are the most popular routes from Oregon to Singapore?
Most travelers choose Portland - Singapore Changi, Boise Air Term. Gowen Fld - Singapore Changi or Eugene - Singapore Changi when deciding on the best route from Oregon to Singapore.
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

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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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$455+ Cheap flights from Oregon 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.

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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 16, 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 16, 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 16, 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 SIN?

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 16, 2025.

How much does it cost to fly round-trip from Oregon to Singapore?

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.

What airport do you fly into for flights to Singapore from Oregon?

How long is the flight from Oregon to Singapore?

What are the most popular routes 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

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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 16, 2025.