How long does it take to fly to Singapore?

The flight from Oregon to Singapore depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Eugene (a popular airport in Oregon) to Singapore (the most popular airport in Singapore), then the flight time is 21h 25m on average. If you fly from Portland (another popular airport in Oregon) to Singapore, then the average flight time is 24h 45m.

What is the cheapest airline that flies from Oregon to Singapore Changi?

Air Canada, United Airlines, and Delta are the most popular carriers operating from Oregon to Singapore Changi

What airlines fly to Singapore?

United Airlines, Air Canada and Singapore Airlines are the top three most popular airlines that fly to Singapore from Oregon according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 5 different airlines that fly to Singapore on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Oregon to Singapore Changi Airport?

Prices for flights from Oregon to Singapore Changi Airport refresh daily.

How many operators does momondo search for flights from Oregon to Singapore Changi Airport?

There are 5 operators available for flights from Oregon to Singapore Changi Airport as of August 2025.

How old do you have to be to fly from Oregon to Singapore Changi Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Oregon to Singapore Changi Airport.

What documentation or ID do you need to fly to Singapore Changi Airport?

The necessary travel and health documents for your Singapore Changi Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$358 Cheap Flights from Oregon to Singapore in 2025

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Find the cheapest flights from Oregon to Singapore

Round-trip

One-way

Last minute

Cheap round-trip flights

3:25 pm - 7:05 amPDX-SIN

24h 40m1 stop

9:10 am - 2:46 pmSIN-PDX

20h 36m1 stop

$718Air Canada

Find Deal

mar., sep. 16 - mar., sep. 30

7:00 pm - 7:00 amPDX-SIN

21h 00m1 stop

9:00 pm - 2:45 pmSIN-PDX

33h 45m2 stops

$720Air Canada

Find Deal

mar., oct. 28 - mar., nov. 11

11:59 pm - 7:05 amPDX-SIN

40h 06m2 stops

6:35 am - 2:45 pmSIN-PDX

23h 10m2 stops

$775

Find Deal

mié., oct. 15 - mié., oct. 29

9:30 pm - 5:45 pmPDX-SIN

28h 15m1 stop

9:15 am - 1:19 pmSIN-PDX

20h 04m1 stop

$786Singapore Airlines

Find Deal

lun., ene. 12 - mié., ene. 21

7:40 pm - 12:50 amPDX-SIN

38h 10m2 stops

9:10 am - 6:46 pmSIN-PDX

24h 36m1 stop

$832

Find Deal

dom., ago. 31 - dom., sep. 7

8:55 am - 11:40 pmPDX-SIN

23h 45m2 stops

1:10 am - 11:52 pmSIN-PDX

37h 42m2 stops

$841Delta

Find Deal

jue., sep. 4 - mié., sep. 24

9:30 pm - 5:45 pmPDX-SIN

28h 15m1 stop

9:20 am - 4:28 pmSIN-PDX

23h 08m2 stops

$842Singapore Airlines

Find Deal

lun., ene. 12 - mié., ene. 21

8:55 am - 11:40 pmPDX-SIN

23h 45m2 stops

7:30 am - 2:38 pmSIN-PDX

22h 08m2 stops

$844Korean Air

Find Deal

lun., sep. 1 - jue., sep. 4

9:17 am - 11:40 pmPDX-SIN

23h 23m2 stops

1:30 am - 12:49 pmSIN-PDX

26h 19m2 stops

$847Korean Air

Find Deal

mié., oct. 15 - mar., oct. 28

9:10 am - 12:10 amPDX-SIN

23h 00m2 stops

1:30 am - 7:11 pmSIN-PDX

33h 41m2 stops

$891Delta

Find Deal

vie., feb. 6 - jue., feb. 26

United Airlines flights from Oregon to Singapore

Our best United Airlines deals on Oregon to Singapore flight tickets

United Airlines

Oct 1

BOI2:44 pmBoise Air Term. Gowen Fld

25h 31m

1 stop

SIN6:15 amSingapore Changi

Oct 10

SIN8:45 amSingapore Changi

28h 59m

1 stop

BOI11:44 pmBoise Air Term. Gowen Fld

$1,063

Find similar

United Airlines

Oct 1

BOI7:45 amBoise Air Term. Gowen Fld

20h 40m

1 stop

SIN6:25 pmSingapore Changi

Oct 10

SIN8:40 pmSingapore Changi

30h 50m

2 stops

BOI1:30 pmBoise Air Term. Gowen Fld

$1,067

Find similar

United Airlines

Jan 14

BOI8:05 amBoise Air Term. Gowen Fld

31h 50m

2 stops

SIN6:55 amSingapore Changi

Jan 21

SIN10:20 pmSingapore Changi

28h 17m

1 stop

BOI11:37 amBoise Air Term. Gowen Fld

$1,073

Find similar

Korean Air flights from Oregon to Singapore

Our best Korean Air deals on Oregon to Singapore flight tickets

Korean Air

Sep 1

PDX8:55 amPortland

23h 45m

2 stops

SIN11:40 pmSingapore Changi

Sep 4

SIN7:30 amSingapore Changi

22h 08m

2 stops

PDX2:38 pmPortland

$844

Find similar

Korean Air

Oct 15

PDX9:17 amPortland

23h 23m

2 stops

SIN11:40 pmSingapore Changi

Oct 28

SIN1:30 amSingapore Changi

26h 19m

2 stops

PDX12:49 pmPortland

$847

Find similar

Korean Air

Sep 16

PDX9:17 amPortland

23h 23m

2 stops

SIN11:40 pmSingapore Changi

Sep 26

SIN1:10 amSingapore Changi

28h 42m

2 stops

PDX2:52 pmPortland

$872

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

mar. 9/16

3:25 pm-7:05 am

1 stop24h 40m

Singapore Changi

mar. 9/30

9:10 am-2:46 pm

1 stop20h 36m

$718

PortlandSingapore

PDX - SIN

PDXSIN

Portland

mar. 10/28

7:00 pm-7:00 am

1 stop21h 00m

Singapore Changi

mar. 11/11

9:00 pm-2:45 pm

2 stops33h 45m

$720

PortlandSingapore

PDX - SIN

PDXSIN

Portland

mié. 10/15

11:59 pm-7:05 am

2 stops40h 06m

Singapore Changi

mié. 10/29

6:35 am-2:45 pm

2 stops23h 10m

$775

PortlandSingapore

PDX - SIN

PDXSIN

Portland

lun. 1/12

9:30 pm-5:45 pm

1 stop28h 15m

Singapore Changi

mié. 1/21

9:15 am-1:19 pm

1 stop20h 04m

$786

PortlandSingapore

PDX - SIN

PDXSIN

Portland

dom. 8/31

7:40 pm-12:50 am

2 stops38h 10m

Singapore Changi

dom. 9/7

9:10 am-6:46 pm

1 stop24h 36m

$832

PortlandSingapore

PDX - SIN

PDXSIN

Portland

jue. 9/4

8:55 am-11:40 pm

2 stops23h 45m

Singapore Changi

mié. 9/24

1:10 am-11:52 pm

2 stops37h 42m

$841

PortlandSingapore

PDX - SIN

PDXSIN

Portland

lun. 1/12

9:30 pm-5:45 pm

1 stop28h 15m

Singapore Changi

mié. 1/21

9:20 am-4:28 pm

2 stops23h 08m

$842

PortlandSingapore

PDX - SIN

PDXSIN

Portland

lun. 9/1

8:55 am-11:40 pm

2 stops23h 45m

Singapore Changi

jue. 9/4

7:30 am-2:38 pm

2 stops22h 08m

$844

PortlandSingapore

PDX - SIN

PDXSIN

Portland

mié. 10/15

9:17 am-11:40 pm

2 stops23h 23m

Singapore Changi

mar. 10/28

1:30 am-12:49 pm

2 stops26h 19m

$847

PortlandSingapore

PDX - SIN

PDXSIN

Portland

vie. 2/6

9:10 am-12:10 am

2 stops23h 00m

Singapore Changi

jue. 2/26

1:30 am-7:11 pm

2 stops33h 41m

$891

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How to get the cheapest flight ticket from Oregon to Singapore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Singapore?

The month of September is, on average, the cheapest month to fly to Singapore from Oregon, with most prices found around $753. If you aren’t able to travel to Singapore during the month of September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $865.

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from Oregon to Singapore is on a Tuesday when prices can be found for as low as $1,256. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,673.

What is the cheapest time of day to depart on your flight to Singapore?

At noon is the cheapest time of day to fly from Oregon to Singapore when you can find flight prices for as low as $1,121. Flying to Singapore at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,334 on average. Flights to Singapore from Oregon in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Singapore?

You are more likely to see cheaper flights to Singapore from Oregon when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,038 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from Oregon for as low as $774 on momondo.

Can stopping save me money on Oregon to Singapore flights?

You could potentially save up to 24% on your flight if you consider stops on a Oregon to Singapore flight.

Cheap Oregon to Singapore flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oregon to Singapore

Best Price Found	$358
Fastest flight time	20h 22m
Direct flights	None
Airports in Singapore	1 airport

The best one-way flight to Singapore from Oregon in the past 72 hours is $358. The best round-trip flight deal from Oregon to Singapore found on momondo in the last 72 hours is $718.

The fastest flight from Oregon to Singapore takes 20h 22m

There are no direct flights from Oregon to Singapore. Popular non-direct route for this connection is Portland Airport - Singapore Changi Airport.

There is 1 airport near Singapore: Singapore Changi (SIN)

Search flight deals

When did momondo last update prices for flights from Oregon to Singapore Changi Airport?
Prices for flights from Oregon to Singapore Changi Airport refresh daily.
How many operators does momondo search for flights from Oregon to Singapore Changi Airport?
There are 5 operators available for flights from Oregon to Singapore Changi Airport as of August 2025.
How old do you have to be to fly from Oregon to Singapore Changi Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Oregon to Singapore Changi Airport.
What documentation or ID do you need to fly to Singapore Changi Airport?
The necessary travel and health documents for your Singapore Changi Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Oregon to Singapore

Compare and see reviews for airlines that fly from Oregon to Singapore with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $694	Free Cancellation	Rating 7.1 9,992 reviews	Search Air Canada flights
United Airlines	PriceFrom $797	Free Cancellation	Rating 7.4 8,925 reviews	Search United Airlines flights
Delta	PriceFrom $800	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
Korean Air	PriceFrom $808	Free Cancellation	Rating 8.4 1,131 reviews	Search Korean Air flights
Singapore Airlines	PriceFrom $911	Free Cancellation	Rating 8.1 1,347 reviews	Search Singapore Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Oregon to Singapore?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Oregon to Singapore for you.

Can I find flights from Oregon to Singapore with flexible booking policies on momondo?

momondo does allow users to show only those flights to Singapore from Oregon which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Oregon to Singapore?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oregon to Singapore.

I’m not ready to book a flight from Oregon to Singapore right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Oregon to Singapore flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Oregon to Singapore from $358

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oregon to Singapore departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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Find the cheapest flights from Oregon to Singapore

Cheap round-trip flights

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Cheap last minute flights

United Airlines flights from Oregon to Singapore

Our best United Airlines deals on Oregon to Singapore flight tickets

Korean Air flights from Oregon to Singapore

Our best Korean Air deals on Oregon to Singapore flight tickets

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

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How to get the cheapest flight ticket from Oregon to Singapore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Singapore?

What is the cheapest day to depart on your flight to Singapore?

The cheapest day to depart from Oregon to Singapore is on a Tuesday when prices can be found for as low as $1,256. The most expensive day to fly to Singapore is Saturday, with ticket prices averaging around $1,673.

What is the cheapest time of day to depart on your flight to Singapore?

How far in advance should I book a flight to Singapore?

Can stopping save me money on Oregon to Singapore flights?

You could potentially save up to 24% on your flight if you consider stops on a Oregon to Singapore flight.

What is the cheapest airline that flies from Oregon to Singapore Changi?

Air Canada, United Airlines, and Delta are the most popular carriers operating from Oregon to Singapore Changi

What airlines fly to Singapore?

How long does it take to fly to Singapore?

Cheap Oregon to Singapore flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oregon to Singapore

Best Price Found

Fastest flight time

Direct flights

Airports in Singapore

When did momondo last update prices for flights from Oregon to Singapore Changi Airport?

How many operators does momondo search for flights from Oregon to Singapore Changi Airport?

How old do you have to be to fly from Oregon to Singapore Changi Airport?

What documentation or ID do you need to fly to Singapore Changi Airport?

Best airlines flying from Oregon to Singapore

Compare and see reviews for airlines that fly from Oregon to Singapore with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Oregon to Singapore?

Can I find flights from Oregon to Singapore with flexible booking policies on momondo?

How can momondo help me find flights from Oregon to Singapore?

I’m not ready to book a flight from Oregon to Singapore right now. Can momondo alert me if prices change?

An easier way to manage your Singapore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Singapore

Fly your favorite airline to Singapore

Airlines are sorted and displayed according to clicks in the past 7 days on momondo