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Cheap flights from Portland to Singapore from $386

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 2/2. 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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0 bags

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Find the cheapest flights from Portland to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
3:15 pm - 7:00 am
PDX
-
SIN
23h 45m
1 stop
Air Canada Logo
8:50 am - 9:15 am
SIN
-
PDX
16h 25m
1 stop
$798Air Canada
Thu, Feb 5 - Thu, Feb 19
Air Canada Logo
7:05 pm - 7:00 am
PDX
-
SIN
19h 55m
1 stop
Air Canada Logo
11:10 pm - 2:40 pm
SIN
-
PDX
31h 30m
2 stops
$816Air Canada
Thu, Feb 5 - Thu, Feb 19
Air Canada Logo
3:15 pm - 7:00 am
PDX
-
SIN
23h 45m
1 stop
Air Canada Logo
6:35 am - 6:30 pm
SIN
-
PDX
27h 55m
2 stops
$845Air Canada
Tue, Feb 17 - Tue, Mar 3
Air Canada Logo
7:05 pm - 2:50 pm
PDX
-
SIN
27h 45m
2 stops
Air Canada Logo
6:35 am - 2:40 pm
SIN
-
PDX
24h 05m
2 stops
$846Air Canada
Tue, Feb 17 - Wed, Mar 4
Air Canada Logo
3:15 pm - 11:15 am
PDX
-
SIN
28h 00m
2 stops
Air Canada Logo
6:35 am - 6:30 pm
SIN
-
PDX
27h 55m
2 stops
$847Air Canada
Tue, Feb 17 - Tue, Mar 3
Air Canada Logo
7:05 pm - 7:00 am
PDX
-
SIN
20h 55m
1 stop
Air Canada Logo
7:00 am - 9:15 am
SIN
-
PDX
17h 15m
1 stop
$850Air Canada
Thu, Mar 26 - Sat, Apr 18
Air Canada Logo
3:15 pm - 11:15 am
PDX
-
SIN
29h 00m
2 stops
Air Canada Logo
7:00 am - 2:40 pm
SIN
-
PDX
22h 40m
1 stop
$852Air Canada
Thu, Mar 26 - Sat, Apr 18
Air Canada Logo
9:50 am - 7:00 am
PDX
-
SIN
29h 10m
1 stop
Air Canada Logo
6:35 am - 1:40 pm
SIN
-
PDX
23h 05m
2 stops
$863Air Canada
Thu, Feb 19 - Sun, Mar 8
Air Canada Logo
7:05 pm - 11:15 am
PDX
-
SIN
24h 10m
2 stops
Air Canada Logo
6:35 am - 5:30 pm
SIN
-
PDX
26h 55m
2 stops
$864Air Canada
Thu, Feb 19 - Sun, Mar 8
Air Canada Logo
9:50 am - 7:00 am
PDX
-
SIN
29h 10m
1 stop
Air Canada Logo
8:50 am - 5:30 pm
SIN
-
PDX
24h 40m
1 stop
$870Air Canada
Thu, Feb 19 - Sun, Mar 8

Air Canada flights from Portland to Singapore

Our best Air Canada deals on Portland to Singapore flight tickets
Air Canada
Feb 5
PDX3:15 pmPortland
23h 45m
1 stop
SIN7:00 amSingapore Changi
Feb 19
SIN8:50 amSingapore Changi
16h 25m
1 stop
PDX9:15 amPortland
$798
Air Canada
Feb 5
PDX7:05 pmPortland
19h 55m
1 stop
SIN7:00 amSingapore Changi
Feb 19
SIN11:10 pmSingapore Changi
31h 30m
2 stops
PDX2:40 pmPortland
$816
Air Canada
Feb 17
PDX3:15 pmPortland
23h 45m
1 stop
SIN7:00 amSingapore Changi
Mar 3
SIN6:35 amSingapore Changi
27h 55m
2 stops
PDX6:30 pmPortland
$845

Qatar Airways flights from Portland to Singapore

Our best Qatar Airways deals on Portland to Singapore flight tickets
Qatar Airways
Mar 12
PDX8:30 amPortland
39h 25m
2 stops
SIN2:55 pmSingapore Changi
Mar 19
SIN3:15 amSingapore Changi
33h 23m
2 stops
PDX9:38 pmPortland
$1,019
Qatar Airways
Mar 12
PDX1:36 pmPortland
34h 19m
2 stops
SIN2:55 pmSingapore Changi
Mar 21
SIN8:15 pmSingapore Changi
40h 23m
2 stops
PDX9:38 pmPortland
$1,031
Qatar Airways
Mar 13
PDX1:36 pmPortland
28h 09m
2 stops
SIN8:45 amSingapore Changi
Mar 19
SIN3:15 amSingapore Changi
33h 23m
2 stops
PDX9:38 pmPortland
$1,050

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Singapore that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 13, 2026.
Use the filters below to find and compare flights from Portland to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 2/5

3:15 pm-7:00 am

1 stop23h 45m

Singapore Changi

Thu 2/19

8:50 am-9:15 am

1 stop16h 25m

$798

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 2/5

7:05 pm-7:00 am

1 stop19h 55m

Singapore Changi

Thu 2/19

11:10 pm-2:40 pm

2 stops31h 30m

$816

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 2/17

3:15 pm-7:00 am

1 stop23h 45m

Singapore Changi

Tue 3/3

6:35 am-6:30 pm

2 stops27h 55m

$845

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 2/17

7:05 pm-2:50 pm

2 stops27h 45m

Singapore Changi

Wed 3/4

6:35 am-2:40 pm

2 stops24h 05m

$846

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 2/17

3:15 pm-11:15 am

2 stops28h 00m

Singapore Changi

Tue 3/3

6:35 am-6:30 pm

2 stops27h 55m

$847

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 3/26

7:05 pm-7:00 am

1 stop20h 55m

Singapore Changi

Sat 4/18

7:00 am-9:15 am

1 stop17h 15m

$850

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 3/26

3:15 pm-11:15 am

2 stops29h 00m

Singapore Changi

Sat 4/18

7:00 am-2:40 pm

1 stop22h 40m

$852

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 2/19

9:50 am-7:00 am

1 stop29h 10m

Singapore Changi

Sun 3/8

6:35 am-1:40 pm

2 stops23h 05m

$863

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 2/19

7:05 pm-11:15 am

2 stops24h 10m

Singapore Changi

Sun 3/8

6:35 am-5:30 pm

2 stops26h 55m

$864

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Thu 2/19

9:50 am-7:00 am

1 stop29h 10m

Singapore Changi

Sun 3/8

8:50 am-5:30 pm

1 stop24h 40m

$870

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $993 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 1% 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

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

  • 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?

  • 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
Air CanadaPriceFrom $694Free CancellationRating
7.1
10,619 reviews
Search Air Canada flights
Singapore AirlinesPriceFrom $789Free CancellationRating
8.1
1,431 reviews
Search Singapore Airlines flights
Korean AirPriceFrom $792Free CancellationRating
8.4
1,187 reviews
Search Korean Air flights
DeltaPriceFrom $800Free CancellationRating
7.9
8,040 reviews
Search Delta flights
United AirlinesPriceFrom $869Free CancellationRating
7.4
9,156 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.

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
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