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

Philippine Airlines, Air Canada, and United Airlines are the most popular carriers operating from Portland to Singapore

What airlines fly to Singapore?

Air Canada, Singapore Airlines and United 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 41% of people opting to fly with this airline when traveling to Singapore. Keep in mind that there are 3 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 Portland Airport to Singapore?

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

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

As of October 2026, there are 3 operators available to choose from for flights from Portland Airport to Singapore.

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

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.

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

The travel and health documents required for your trip to Singapore 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. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$434 Cheap Flights from Portland to Singapore in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

7:10 pm - 7:00 amPDX Portland-SIN Singapore Changi

19h 50m1 stop Vancouver Intl

8:40 am - 12:26 pmSIN Singapore Changi-PDX Portland

43h 46m2 stops Vancouver Intl San Francisco

$906Air Canada

Tue, Jan 19 - Tue, Jan 26

3:15 pm - 7:00 amPDX Portland-SIN Singapore Changi

23h 45m1 stop Vancouver Intl

8:40 am - 2:41 pmSIN Singapore Changi-PDX Portland

22h 01m1 stop Vancouver Intl

$910Air Canada

Tue, Jan 19 - Tue, Jan 26

7:30 am - 7:00 amPDX Portland-SIN Singapore Changi

31h 30m2 stops San Francisco Vancouver Intl

8:40 am - 12:26 pmSIN Singapore Changi-PDX Portland

43h 46m2 stops Vancouver Intl San Francisco

$911Air Canada

Tue, Jan 19 - Tue, Jan 26

10:00 am - 9:55 pmPDX Portland-SIN Singapore Changi

43h 55m2 stops Vancouver Intl Incheon Intl

11:10 pm - 6:30 pmSIN Singapore Changi-PDX Portland

35h 20m2 stops Incheon Intl Vancouver Intl

$935Multiple Airlines

Wed, Mar 3 - Mon, Mar 8

10:00 am - 7:00 amPDX Portland-SIN Singapore Changi

30h 00m1 stop Vancouver Intl

10:45 am - 6:31 pmSIN Singapore Changi-PDX Portland

23h 46m2 stops Tokyo Haneda Vancouver Intl

$937Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

3:40 pm - 7:00 amPDX Portland-SIN Singapore Changi

24h 20m2 stops San Francisco Vancouver Intl

10:45 am - 6:31 pmSIN Singapore Changi-PDX Portland

23h 46m2 stops Tokyo Haneda Vancouver Intl

$941Multiple Airlines

Wed, Oct 28 - Wed, Nov 4

5:30 am - 8:15 pmPDX Portland-SIN Singapore Changi

22h 45m1 stop San Francisco

10:10 am - 6:24 pmSIN Singapore Changi-PDX Portland

24h 14m1 stop San Francisco

$1,241United Airlines

Thu, Nov 5 - Mon, Nov 16

3:30 pm - 8:00 amPDX Portland-SIN Singapore Changi

24h 30m1 stop San Francisco

10:10 am - 12:25 pmSIN Singapore Changi-PDX Portland

18h 15m1 stop San Francisco

$1,241United Airlines

Mon, Feb 1 - Mon, Feb 15

5:30 am - 6:35 pmPDX Portland-SIN Singapore Changi

22h 05m1 stop San Francisco

10:10 am - 9:02 pmSIN Singapore Changi-PDX Portland

25h 52m1 stop San Francisco

$1,241United Airlines

Mon, Oct 12 - Mon, Oct 26

7:10 pm - 12:55 pmPDX Portland-SIN Singapore Changi

25h 45m2 stops Vancouver Intl Hong Kong Intl

8:30 am - 8:45 pmSIN Singapore Changi-PDX Portland

27h 15m2 stops Incheon Intl Vancouver Intl

$2,164Singapore Airlines

Wed, Mar 3 - Thu, Mar 18

Cheap last minute flights

Enter your travel dates to find the best prices.

7:29 pm - 6:15 amPDX Portland-SIN Singapore Changi

19h 46m1 stop San Francisco

10:10 am - 6:24 pmSIN Singapore Changi-PDX Portland

23h 14m1 stop San Francisco

$1,231United Airlines

Wed, Oct 7 - Mon, Oct 26

5:30 am - 6:35 pmPDX Portland-SIN Singapore Changi

22h 05m1 stop San Francisco

6:35 am - 2:37 pmSIN Singapore Changi-PDX Portland

23h 02m2 stops Tokyo Narita San Francisco

$1,243United Airlines

Wed, Oct 7 - Mon, Oct 26

7:18 am - 12:45 amPDX Portland-SIN Singapore Changi

26h 27m2 stops San Francisco Hong Kong Intl

6:00 pm - 3:06 pmSIN Singapore Changi-PDX Portland

36h 06m2 stops Hong Kong Intl Seattle/Tacoma Intl

$1,309Cathay Pacific

Wed, Oct 7 - Mon, Oct 26

3:30 pm - 3:45 pmPDX Portland-SIN Singapore Changi

33h 15m3 stops Reykjavik Keflavik Intl Dublin Doha Hamad Intl

2:45 pm - 9:56 pmSIN Singapore Changi-PDX Portland

22h 11m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$1,573Multiple Airlines

Wed, Oct 7 - Mon, Oct 26

10:29 am - 11:45 amPDX Portland-SIN Singapore Changi

34h 16m2 stops Vancouver Intl Hong Kong Intl

7:55 pm - 9:50 amSIN Singapore Changi-PDX Portland

28h 55m1 stop San Francisco

$2,759Multiple Airlines

Fri, Oct 2 - Wed, Oct 14

9:13 am - 5:45 pmPDX Portland-SIN Singapore Changi

41h 32m2 stops San Diego Tokyo Narita

9:50 pm - 10:49 pmSIN Singapore Changi-PDX Portland

39h 59m2 stops Tokyo Haneda Los Angeles

$2,799Japan Airlines

Fri, Oct 2 - Thu, Oct 15

7:40 pm - 12:40 pmPDX Portland-SIN Singapore Changi

26h 00m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

2:00 pm - 9:56 pmSIN Singapore Changi-PDX Portland

22h 56m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$3,099STARLUX Airlines

Fri, Oct 2 - Wed, Oct 14

9:32 pm - 12:40 pmPDX Portland-SIN Singapore Changi

24h 08m2 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl

2:00 pm - 9:56 pmSIN Singapore Changi-PDX Portland

22h 56m2 stops Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl

$3,099STARLUX Airlines

Fri, Oct 2 - Fri, Oct 16

10:29 am - 11:45 amPDX Portland-SIN Singapore Changi

34h 16m2 stops Vancouver Intl Hong Kong Intl

12:10 pm - 9:32 amSIN Singapore Changi-PDX Portland

36h 22m1 stop New York John F Kennedy Intl

$3,493Multiple Airlines

Fri, Oct 2 - Thu, Oct 15

10:29 am - 11:45 amPDX Portland-SIN Singapore Changi

34h 16m2 stops Vancouver Intl Hong Kong Intl

12:10 pm - 9:32 amSIN Singapore Changi-PDX Portland

36h 22m1 stop New York John F Kennedy Intl

$3,538Multiple Airlines

Fri, Oct 2 - Fri, Oct 16

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Qatar Airways flights from Portland to Singapore

Our best Qatar Airways deals on Portland to Singapore flight tickets

Qatar Airways

Feb 1

PDX10:31 amPortland

30h 14m

2 stops

SIN8:45 amSingapore Changi

Feb 15

SIN8:15 pmSingapore Changi

34h 40m

2 stops

PDX2:55 pmPortland

$1,020

Qatar Airways

Jan 21

PDX8:30 amPortland

32h 15m

2 stops

SIN8:45 amSingapore Changi

Feb 11

SIN8:15 pmSingapore Changi

42h 29m

2 stops

PDX10:44 pmPortland

$1,021

Qatar Airways

Mar 9

PDX12:55 pmPortland

27h 50m

2 stops

SIN8:45 amSingapore Changi

Apr 1

SIN3:15 amSingapore Changi

35h 55m

2 stops

PDX12:10 amPortland

$1,024

Air Canada flights from Portland to Singapore

Our best Air Canada deals on Portland to Singapore flight tickets

Air Canada

Jan 19

PDX7:10 pmPortland

19h 50m

1 stop

SIN7:00 amSingapore Changi

Jan 26

SIN8:40 amSingapore Changi

43h 46m

2 stops

PDX12:26 pmPortland

$906

Air Canada

Jan 19

PDX3:15 pmPortland

23h 45m

1 stop

SIN7:00 amSingapore Changi

Jan 26

SIN8:40 amSingapore Changi

22h 01m

1 stop

PDX2:41 pmPortland

$910

Air Canada

Jan 19

PDX7:30 amPortland

31h 30m

2 stops

SIN7:00 amSingapore Changi

Jan 26

SIN8:40 amSingapore Changi

43h 46m

2 stops

PDX12:26 pmPortland

$911

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Tue 1/19

7:10 pm-7:00 am

1 stop19h 50m

Singapore Changi

Tue 1/26

8:40 am-12:26 pm

2 stops43h 46m

$906

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Tue 1/19

3:15 pm-7:00 am

1 stop23h 45m

Singapore Changi

Tue 1/26

8:40 am-2:41 pm

1 stop22h 01m

$910

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Tue 1/19

7:30 am-7:00 am

2 stops31h 30m

Singapore Changi

Tue 1/26

8:40 am-12:26 pm

2 stops43h 46m

$911

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Wed 3/3

10:00 am-9:55 pm

2 stops43h 55m

Singapore Changi

Mon 3/8

11:10 pm-6:30 pm

2 stops35h 20m

$935

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Wed 10/28

10:00 am-7:00 am

1 stop30h 00m

Singapore Changi

Wed 11/4

10:45 am-6:31 pm

2 stops23h 46m

$937

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Wed 10/28

3:40 pm-7:00 am

2 stops24h 20m

Singapore Changi

Wed 11/4

10:45 am-6:31 pm

2 stops23h 46m

$941

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Thu 11/5

5:30 am-8:15 pm

1 stop22h 45m

Singapore Changi

Mon 11/16

10:10 am-6:24 pm

1 stop24h 14m

$1,241

Quickest round-trip

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Mon 2/1

3:30 pm-8:00 am

1 stop24h 30m

Singapore Changi

Mon 2/15

10:10 am-12:25 pm

1 stop18h 15m

$1,241

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Mon 10/12

5:30 am-6:35 pm

1 stop22h 05m

Singapore Changi

Mon 10/26

10:10 am-9:02 pm

1 stop25h 52m

$1,241

PortlandSingapore

PDX Portland - SIN Singapore Changi

PDXSIN

Portland

Wed 3/3

7:10 pm-12:55 pm

2 stops25h 45m

Singapore Changi

Thu 3/18

8:30 am-8:45 pm

2 stops27h 15m

$2,164

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

What is the cheapest month to fly to Singapore?

The month of April is, on average, the cheapest month to fly to Singapore from Portland, with most prices found around $996. If you aren’t able to travel to Singapore during the month of April, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $1,024.

How far in advance should I book a flight from Portland 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 $1,122 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 $901 on momondo.

Can stopping save me money on Portland to Singapore flights?

You could potentially save up to 6% on your flight if you consider stops on a Portland to Singapore flight.

Cheap Portland to Singapore flight deals and tips

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

Best Price Found	$434
Fastest flight time	22h 52m
Direct flights	None

The best one-way flight to Singapore from Portland in the past 72 hours is $434. The best round-trip flight deal from Portland to Singapore found on momondo in the last 72 hours is $906.

The fastest flight from Portland to Singapore takes 22h 52m

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

Search flight deals

Frequently asked questions about flying from Portland to Singapore

When did momondo last update prices for flights from Portland Airport to Singapore?
Prices for flights from Portland Airport to Singapore were last updated today.
How many operators does momondo search for flights from Portland Airport to Singapore?
As of October 2026, there are 3 operators available to choose from for flights from Portland Airport to Singapore.
How old do you have to be to fly from Portland Airport to Singapore?
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.
What documentation or ID do you need to fly to Singapore?
The travel and health documents required for your trip to Singapore 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. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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
Singapore Airlines	PriceFrom $789	Free Cancellation	Rating 8.2 1,619 reviews	Search Singapore Airlines flights
Air Canada	PriceFrom $820	Free Cancellation	Rating 7.1 11,711 reviews	Search Air Canada flights
United Airlines	PriceFrom $1,024	Free Cancellation	Rating 7.4 10,273 reviews	Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Portland to Singapore flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Singapore that suits you.

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

Yes. momondo allows you to filter the results for Portland to Singapore flights to just show those with flexible booking policies.

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?

Of course. momondo tracks the price of Portland to Singapore flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Portland to Singapore from $434

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 2/14. 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

Big names and deals

Filter for what you want

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Qatar Airways flights from Portland to Singapore

Our best Qatar Airways 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

What is the cheapest month to fly to Singapore?

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

Can stopping save me money on Portland to Singapore flights?

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

What airlines fly to Singapore?

Cheap Portland to Singapore flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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?

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

Popular cities in Singapore

Popular flights according to clicks in the last 7 days on momondo

Portland flight routes

According to popular flight searches on momondo this year

Singapore flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Singapore

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

Cabin classes currently available on flights to Singapore

List of cabin classes available on flights landing in Singapore. Availability may vary depending on flight origin and airline.

Complete your trip to Singapore

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According to popular flight searches on momondo this year