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

Vancouver (YVR) was the most common stop: 65% of momondo users choosing 1-stop flights on this route connected there.

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 47% 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.

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

Flights via Vancouver (YVR) offer the lowest average round-trip price of $793.

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 27m.

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

Flights connecting via Seattle (SEA) have the shortest average one-way travel time: 20h 20m.

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 January 2026, 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.

$405 Cheap Flights from Portland to Singapore in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $888 to $1,026. The lowest price recently found on this route was $793.

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7:05 am - 7:10 pm

PDX

SIN

21h 05m

1 stop

9:15 am - 1:50 pm

SIN

PDX

19h 35m

1 stop

$793Singapore Airlines

Tue, Apr 14 - Tue, Apr 21

7:05 am - 7:10 pm

PDX

SIN

21h 05m

1 stop

9:15 am - 1:50 pm

SIN

PDX

19h 35m

1 stop

$801Singapore Airlines

Tue, Apr 14 - Tue, Apr 21

9:48 pm - 7:05 pm

PDX

SIN

29h 17m

1 stop

8:45 pm - 9:35 am

SIN

PDX

27h 50m

1 stop

$874Singapore Airlines

Mon, Mar 2 - Mon, Mar 9

5:45 pm - 9:05 am

PDX

SIN

24h 20m

2 stops

12:35 pm - 6:34 pm

SIN

PDX

44h 59m

2 stops

$919Multiple Airlines

Tue, Apr 14 - Tue, Apr 21

10:31 am - 12:40 pm

PDX

SIN

35h 09m

2 stops

2:00 pm - 9:38 pm

SIN

PDX

22h 38m

2 stops

$922Multiple Airlines

Tue, Apr 14 - Tue, Apr 21

5:49 pm - 7:50 am

PDX

SIN

23h 01m

1 stop

9:00 am - 12:52 pm

SIN

PDX

18h 52m

1 stop

$929Singapore Airlines

Mon, Apr 27 - Thu, Apr 30

1:36 pm - 9:35 am

PDX

SIN

27h 59m

2 stops

11:45 pm - 9:10 pm

SIN

PDX

36h 25m

2 stops

$936Multiple Airlines

Fri, Feb 27 - Tue, Mar 10

9:48 pm - 7:05 pm

PDX

SIN

29h 17m

1 stop

9:00 am - 3:48 pm

SIN

PDX

21h 48m

1 stop

$944Singapore Airlines

Mon, Mar 2 - Thu, Mar 12

5:30 pm - 12:40 pm

PDX

SIN

28h 10m

2 stops

2:00 pm - 10:53 pm

SIN

PDX

23h 53m

2 stops

$959STARLUX Airlines

Mon, Apr 27 - Thu, Apr 30

3:52 pm - 1:25 pm

PDX

SIN

29h 33m

2 stops

2:45 pm - 10:41 pm

SIN

PDX

22h 56m

2 stops

$960STARLUX Airlines

Mon, Mar 2 - Thu, Mar 12

Singapore Airlines flights from Portland to Singapore

Our best Singapore Airlines deals on Portland to Singapore flight tickets

Singapore Airlines

Apr 14

PDX7:05 amPortland

21h 05m

1 stop

SIN7:10 pmSingapore Changi

Apr 21

SIN9:15 amSingapore Changi

19h 35m

1 stop

PDX1:50 pmPortland

$793

Singapore Airlines

Feb 23

PDX9:48 pmPortland

29h 17m

1 stop

SIN7:05 pmSingapore Changi

Mar 4

SIN8:45 pmSingapore Changi

28h 50m

1 stop

PDX9:35 amPortland

$874

Singapore Airlines

Apr 27

PDX5:49 pmPortland

23h 01m

1 stop

SIN7:50 amSingapore Changi

Apr 30

SIN9:00 amSingapore Changi

18h 52m

1 stop

PDX12:52 pmPortland

$929

United Airlines flights from Portland to Singapore

Our best United Airlines deals on Portland to Singapore flight tickets

United Airlines

Feb 25

PDX5:35 amPortland

22h 40m

1 stop

SIN8:15 pmSingapore Changi

Mar 4

SIN10:20 pmSingapore Changi

18h 14m

1 stop

PDX12:34 amPortland

$1,026

United Airlines

Feb 26

PDX7:30 amPortland

20h 45m

1 stop

SIN8:15 pmSingapore Changi

Mar 5

SIN10:20 pmSingapore Changi

18h 15m

1 stop

PDX12:35 amPortland

$1,027

United Airlines

Feb 23

PDX4:00 pmPortland

36h 15m

2 stops

SIN8:15 pmSingapore Changi

Mar 4

SIN10:10 amSingapore Changi

23h 41m

2 stops

PDX5:51 pmPortland

$1,031

Fly from

Fly to

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 4/14

7:05 am-7:10 pm

1 stop21h 05m

Singapore Changi

Tue 4/21

9:15 am-1:50 pm

1 stop19h 35m

$793

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 4/14

7:05 am-7:10 pm

1 stop21h 05m

Singapore Changi

Tue 4/21

9:15 am-1:50 pm

1 stop19h 35m

$801

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 3/2

9:48 pm-7:05 pm

1 stop29h 17m

Singapore Changi

Mon 3/9

8:45 pm-9:35 am

1 stop27h 50m

$874

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 4/14

5:45 pm-9:05 am

2 stops24h 20m

Singapore Changi

Tue 4/21

12:35 pm-6:34 pm

2 stops44h 59m

$919

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 4/14

10:31 am-12:40 pm

2 stops35h 09m

Singapore Changi

Tue 4/21

2:00 pm-9:38 pm

2 stops22h 38m

$922

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 4/27

5:49 pm-7:50 am

1 stop23h 01m

Singapore Changi

Thu 4/30

9:00 am-12:52 pm

1 stop18h 52m

$929

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Fri 2/27

1:36 pm-9:35 am

2 stops27h 59m

Singapore Changi

Tue 3/10

11:45 pm-9:10 pm

2 stops36h 25m

$936

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 3/2

9:48 pm-7:05 pm

1 stop29h 17m

Singapore Changi

Thu 3/12

9:00 am-3:48 pm

1 stop21h 48m

$944

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 4/27

5:30 pm-12:40 pm

2 stops28h 10m

Singapore Changi

Thu 4/30

2:00 pm-10:53 pm

2 stops23h 53m

$959

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 3/2

3:52 pm-1:25 pm

2 stops29h 33m

Singapore Changi

Thu 3/12

2:45 pm-10:41 pm

2 stops22h 56m

$960

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 $853.

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 $997 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 $798 on momondo.

Can stopping save me money on Portland to Singapore flights?

You could potentially save up to 31% 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 January 2026, prices for Portland to Singapore flights are approximately 3% more expensive 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

Fastest flight time	21h 05m
Direct flights	None

The fastest flight from Portland to Singapore takes 21h 05m

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 21h 05m.
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 January 2026, 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 (45% of total bookings). The next most popular airlines are United Airlines (23%), Singapore Airlines (21%), 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 10,667 reviews	Search Air Canada flights
Singapore Airlines	PriceFrom $789	Free Cancellation	Rating 8.2 1,440 reviews	Search Singapore Airlines flights
Korean Air	PriceFrom $792	Free Cancellation	Rating 8.4 1,188 reviews	Search Korean Air flights
Delta	PriceFrom $800	Free Cancellation	Rating 7.9 8,127 reviews	Search Delta flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,215 reviews	Search United 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.

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Cheap flights from Portland to Singapore from $405

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 4/12. 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

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Filter for what you want

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Find the cheapest flights from Portland to Singapore

Cheap round-trip flights

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Singapore Airlines flights from Portland to Singapore

Our best Singapore Airlines deals on Portland to Singapore flight tickets

United Airlines flights from Portland to Singapore

Our best United Airlines deals on Portland to Singapore flight tickets

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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

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

What is the cheapest month to fly 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 31% 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 January 2026, prices for Portland to Singapore flights are approximately 3% more expensive when compared to flights at the same time last year.

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: 65% 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 $793.

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

Flights connecting via Seattle (SEA) have the shortest average one-way travel time: 20h 20m.

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 27m.

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

Fastest flight time

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