What airlines fly to Singapore?

Air Canada, United Airlines and Singapore Airlines are the top three most popular airlines that fly to Singapore from Portland according to our data. Air Canada is the first choice among our users, with 46% 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.

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

Singapore Airlines, Air Canada, and Alaska Airlines are the most popular carriers operating from Portland to Singapore Changi

Which layover airport offers the lowest fares from Portland to Singapore?

Flights via Vancouver (YVR) offer the lowest average round-trip price of $790.

Which layover airport has the shortest travel time from Portland to Singapore?

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 20h 24m.

Which airport is the most popular layover for flights between Portland and Singapore?

Vancouver (YVR) was the most common stop: 56% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Portland to Singapore?

San Francisco (SFO) has the shortest average layover time for this route: 2h 51m.

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

Prices for flights from Portland Airport to Singapore Changi Airport were last updated today.

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

As of November 2025, there are 5 operators available to choose from for flights from Portland Airport to Singapore Changi Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Singapore Changi Airport.

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

The travel and health documents required for your trip to Singapore Changi Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Singapore Changi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$324 Cheap Flights from Portland to Singapore in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Portland to Singapore

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 pm - 7:05 amPDX-SIN

21h 05m1 stop

9:10 am - 2:40 pmSIN-PDX

20h 30m1 stop

$795Air Canada

Find Deal

Tue, Mar 31 - Thu, Apr 16

7:00 pm - 5:00 amPDX-SIN

43h 00m2 stops

9:10 am - 10:56 pmSIN-PDX

28h 46m1 stop

$796Air Canada

Find Deal

Sun, Apr 26 - Sat, May 9

7:00 am - 7:10 pmPDX-SIN

21h 10m1 stop

9:15 am - 1:36 pmSIN-PDX

19h 21m1 stop

$824Singapore Airlines

Find Deal

Wed, Apr 29 - Wed, May 13

9:10 am - 12:50 amPDX-SIN

23h 40m2 stops

8:15 am - 12:38 pmSIN-PDX

20h 23m2 stops

$826Japan Airlines

Find Deal

Thu, Jan 22 - Thu, Feb 5

7:10 am - 12:10 amPDX-SIN

25h 00m2 stops

10:30 pm - 12:44 pmSIN-PDX

30h 14m2 stops

$866Korean Air

Find Deal

Thu, Jan 15 - Wed, Feb 11

7:20 am - 6:35 amPDX-SIN

31h 15m2 stops

2:20 am - 4:50 pmSIN-PDX

30h 30m2 stops

$872Japan Airlines

Find Deal

Sun, Jan 18 - Wed, Feb 4

6:30 am - 5:00 amPDX-SIN

31h 30m2 stops

1:10 am - 1:17 pmSIN-PDX

27h 07m2 stops

$891Korean Air

Find Deal

Sat, May 2 - Tue, May 12

6:00 am - 5:35 pmPDX-SIN

20h 35m1 stop

9:15 am - 4:46 pmSIN-PDX

22h 31m1 stop

$982Singapore Airlines

Find Deal

Sat, May 2 - Wed, May 13

7:45 am - 8:15 pmPDX-SIN

20h 30m1 stop

10:20 pm - 12:39 amSIN-PDX

18h 19m1 stop

$1,024United Airlines

Find Deal

Thu, Jan 15 - Wed, Feb 11

7:30 am - 8:15 pmPDX-SIN

20h 45m1 stop

10:20 pm - 6:06 pmSIN-PDX

35h 46m2 stops

$1,029United Airlines

Find Deal

Mon, Dec 1 - Mon, Dec 15

Japan Airlines flights from Portland to Singapore

Our best Japan Airlines deals on Portland to Singapore flight tickets

Japan Airlines

Jan 22

PDX9:10 amPortland

23h 40m

2 stops

SIN12:50 amSingapore Changi

Feb 5

SIN8:15 amSingapore Changi

20h 23m

2 stops

PDX12:38 pmPortland

$826

Find similar

Japan Airlines

Jan 18

PDX7:20 amPortland

31h 15m

2 stops

SIN6:35 amSingapore Changi

Feb 4

SIN2:20 amSingapore Changi

30h 30m

2 stops

PDX4:50 pmPortland

$872

Find similar

Japan Airlines

Jan 15

PDX7:20 amPortland

25h 30m

2 stops

SIN12:50 amSingapore Changi

Feb 10

SIN2:20 amSingapore Changi

30h 30m

2 stops

PDX4:50 pmPortland

$973

Find similar

Air Canada flights from Portland to Singapore

Our best Air Canada deals on Portland to Singapore flight tickets

Air Canada

Mar 31

PDX7:00 pmPortland

21h 05m

1 stop

SIN7:05 amSingapore Changi

Apr 16

SIN9:10 amSingapore Changi

20h 30m

1 stop

PDX2:40 pmPortland

$795

Find similar

Air Canada

Apr 26

PDX7:00 pmPortland

43h 00m

2 stops

SIN5:00 amSingapore Changi

May 9

SIN9:10 amSingapore Changi

28h 46m

1 stop

PDX10:56 pmPortland

$796

Find similar

Air Canada

Apr 26

PDX9:50 amPortland

30h 15m

1 stop

SIN7:05 amSingapore Changi

May 9

SIN9:10 amSingapore Changi

28h 46m

1 stop

PDX10:56 pmPortland

$810

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 3/31

7:00 pm-7:05 am

1 stop21h 05m

Singapore Changi

Thu 4/16

9:10 am-2:40 pm

1 stop20h 30m

$795

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 4/26

7:00 pm-5:00 am

2 stops43h 00m

Singapore Changi

Sat 5/9

9:10 am-10:56 pm

1 stop28h 46m

$796

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 4/29

7:00 am-7:10 pm

1 stop21h 10m

Singapore Changi

Wed 5/13

9:15 am-1:36 pm

1 stop19h 21m

$824

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 1/22

9:10 am-12:50 am

2 stops23h 40m

Singapore Changi

Thu 2/5

8:15 am-12:38 pm

2 stops20h 23m

$826

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 1/15

7:10 am-12:10 am

2 stops25h 00m

Singapore Changi

Wed 2/11

10:30 pm-12:44 pm

2 stops30h 14m

$866

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 1/18

7:20 am-6:35 am

2 stops31h 15m

Singapore Changi

Wed 2/4

2:20 am-4:50 pm

2 stops30h 30m

$872

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 5/2

6:30 am-5:00 am

2 stops31h 30m

Singapore Changi

Tue 5/12

1:10 am-1:17 pm

2 stops27h 07m

$891

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sat 5/2

6:00 am-5:35 pm

1 stop20h 35m

Singapore Changi

Wed 5/13

9:15 am-4:46 pm

1 stop22h 31m

$982

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 1/15

7:45 am-8:15 pm

1 stop20h 30m

Singapore Changi

Wed 2/11

10:20 pm-12:39 am

1 stop18h 19m

$1,024

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 12/1

7:30 am-8:15 pm

1 stop20h 45m

Singapore Changi

Mon 12/15

10:20 pm-6:06 pm

2 stops35h 46m

$1,029

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland 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

Layovers

What is the typical price of a round-trip flight between Portland and Singapore?

What is the cheapest month to fly to Singapore?

The month of September is, on average, the cheapest month to fly to Singapore from Portland, with most prices found around $753. If you aren’t able to travel to Singapore during the month of September, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $880.

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

The cheapest day to depart from Portland 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 Portland 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 Portland 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 Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Singapore for around $1,014 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Singapore from Portland for as low as $774 on momondo.

Can stopping save me money on Portland to Singapore flights?

You could potentially save up to 37% on your flight if you consider stops on a Portland to Singapore flight.

How have Portland to Singapore flight prices changed over time?

As of November 2025, prices for Portland to Singapore flights are approximately 33% cheaper when compared to flights at the same time last year.

When to book flights from Portland to Singapore

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Singapore according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to Singapore (PDX to SIN) flight deals and tips

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

Direct flights	None

There are no direct flights from Portland to Singapore. There are no popular flight routes from Portland to Singapore.

Search flight deals

How far is Portland to Singapore Changi by plane?
The straight-line distance from Portland to Singapore Changi is 8130.5 mi. In terms of flight time, this usually takes a little over 20h 00m.
When did momondo last update prices for flights from Portland Airport to Singapore Changi Airport?
Prices for flights from Portland Airport to Singapore Changi Airport were last updated today.
How many operators does momondo search for flights from Portland Airport to Singapore Changi Airport?
As of November 2025, there are 5 operators available to choose from for flights from Portland Airport to Singapore Changi Airport.
How old do you have to be to fly from Portland Airport to Singapore Changi Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Singapore Changi Airport.
What documentation or ID do you need to fly to Singapore Changi Airport?
The travel and health documents required for your trip to Singapore Changi Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Singapore Changi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Portland to Singapore?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Portland to Singapore is Air Canada (44% of total bookings). The next most popular airlines are United Airlines (31%), Singapore Airlines (14%), and Korean Air (7%).

Best airlines flying from Portland to Singapore

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

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $694	Free Cancellation	Rating 7.1 10,413 reviews	Search Air Canada flights
Delta	PriceFrom $800	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta flights
Korean Air	PriceFrom $808	Free Cancellation	Rating 8.4 1,160 reviews	Search Korean Air flights
United Airlines	PriceFrom $868	Free Cancellation	Rating 7.4 9,003 reviews	Search United Airlines flights
Singapore Airlines	PriceFrom $890	Free Cancellation	Rating 8.1 1,393 reviews	Search Singapore Airlines flights

Why use momondo?

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

Finding the right flight to Singapore from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Singapore quick and easy, saving you time and money.

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

Flights from Portland to Singapore with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Portland to Singapore flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Singapore, momondo offers a useful price alert feature which will track prices for flights to Singapore from Portland and alert you when they 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 12/6

Sat 12/13

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Singapore

Fly your favorite airline to Singapore

Cheap flights from Portland to Singapore from $324

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Singapore departing on 2/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Portland to Singapore

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Japan Airlines flights from Portland to Singapore

Our best Japan Airlines deals on Portland to Singapore flight tickets

Air Canada flights from Portland to Singapore

Our best Air Canada deals on Portland to Singapore flight tickets

momondo Fare Finder

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

See travel insights to Singapore from

How to get the cheapest flight ticket from Portland 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 typical price of a round-trip flight between Portland and Singapore?

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 Portland 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 Portland to Singapore flights?

You could potentially save up to 37% on your flight if you consider stops on a Portland to Singapore flight.

How have Portland to Singapore flight prices changed over time?

As of November 2025, prices for Portland to Singapore flights are approximately 33% cheaper when compared to flights at the same time last year.

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

Singapore Airlines, Air Canada, and Alaska Airlines are the most popular carriers operating from Portland to Singapore Changi

What airlines fly to Singapore?

Which airport is the most popular layover for flights between Portland and Singapore?

Vancouver (YVR) was the most common stop: 56% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Portland to Singapore?

Flights via Vancouver (YVR) offer the lowest average round-trip price of $790.

Which layover airport has the shortest travel time from Portland to Singapore?

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 20h 24m.

Which layover airport has the shortest connection time from Portland to Singapore?

San Francisco (SFO) has the shortest average layover time for this route: 2h 51m.

When to book flights from Portland to Singapore

Cheap Portland to Singapore (PDX to SIN) flight deals and tips

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

Direct flights

How far is Portland to Singapore Changi by plane?

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

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

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

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

What is the most popular airline from Portland to Singapore?

Best airlines flying from Portland to Singapore

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

Why use momondo?

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

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

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

I’m not ready to book a flight from Portland 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