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Cheap flights from Portland to Singapore from $412

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 2/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
Singapore Airlines Logo
7:05 am - 7:10 pm
PDX
-
SIN
21h 05m
1 stop
Singapore Airlines Logo
9:15 am - 1:50 pm
SIN
-
PDX
19h 35m
1 stop
$793Singapore Airlines
ter, abr 14 - ter, abr 21
Singapore Airlines Logo
7:05 am - 7:10 pm
PDX
-
SIN
21h 05m
1 stop
Singapore Airlines Logo
9:15 am - 1:50 pm
SIN
-
PDX
19h 35m
1 stop
$801Singapore Airlines
ter, abr 14 - ter, abr 21
Multiple Airlines Logo
3:52 pm - 9:35 am
PDX
-
SIN
26h 43m
2 stops
Multiple Airlines Logo
11:55 pm - 9:10 pm
SIN
-
PDX
36h 15m
2 stops
$899Multiple Airlines
qua, mar 11 - qua, mar 18
Multiple Airlines Logo
5:45 pm - 9:05 am
PDX
-
SIN
24h 20m
2 stops
Multiple Airlines Logo
12:35 pm - 6:34 pm
SIN
-
PDX
44h 59m
2 stops
$919Multiple Airlines
ter, abr 14 - ter, abr 21
Multiple Airlines Logo
10:31 am - 12:40 pm
PDX
-
SIN
35h 09m
2 stops
Multiple Airlines Logo
2:00 pm - 9:38 pm
SIN
-
PDX
22h 38m
2 stops
$922Multiple Airlines
ter, abr 14 - ter, abr 21
Singapore Airlines Logo
9:48 pm - 7:05 pm
PDX
-
SIN
29h 17m
1 stop
Singapore Airlines Logo
9:00 am - 3:48 pm
SIN
-
PDX
21h 48m
1 stop
$944Singapore Airlines
seg, mar 2 - qui, mar 12
STARLUX Airlines Logo
3:52 pm - 1:25 pm
PDX
-
SIN
29h 33m
2 stops
STARLUX Airlines Logo
2:45 pm - 10:41 pm
SIN
-
PDX
22h 56m
2 stops
$960STARLUX Airlines
seg, mar 2 - qui, mar 12
Singapore Airlines Logo
2:50 pm - 7:50 am
PDX
-
SIN
26h 00m
1 stop
Singapore Airlines Logo
9:00 am - 4:50 pm
SIN
-
PDX
22h 50m
1 stop
$978Singapore Airlines
seg, mai 11 - sex, mai 29
STARLUX Airlines Logo
3:52 pm - 1:25 pm
PDX
-
SIN
29h 33m
2 stops
STARLUX Airlines Logo
2:45 pm - 10:41 pm
SIN
-
PDX
22h 56m
2 stops
$997STARLUX Airlines
seg, mar 2 - ter, mar 17
STARLUX Airlines Logo
9:30 pm - 12:40 pm
PDX
-
SIN
24h 10m
2 stops
STARLUX Airlines Logo
2:00 pm - 10:53 pm
SIN
-
PDX
23h 53m
2 stops
$1,004STARLUX Airlines
ter, abr 7 - qua, abr 22

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
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
$801
Singapore Airlines
Mar 2
PDX9:48 pmPortland
29h 17m
1 stop
SIN7:05 pmSingapore Changi
Mar 12
SIN9:00 amSingapore Changi
21h 48m
1 stop
PDX3:48 pmPortland
$944

Qatar Airways flights from Portland to Singapore

Our best Qatar Airways deals on Portland to Singapore flight tickets
Qatar Airways
Feb 25
PDX8:30 amPortland
32h 15m
2 stops
SIN8:45 amSingapore Changi
Mar 3
SIN3:15 amSingapore Changi
35h 26m
2 stops
PDX10:41 pmPortland
$1,019
Qatar Airways
Apr 5
PDX1:35 pmPortland
28h 15m
2 stops
SIN8:50 amSingapore Changi
Apr 21
SIN3:15 amSingapore Changi
34h 38m
2 stops
PDX10:53 pmPortland
$1,065

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 janeiro 27, 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

ter 4/14

7:05 am-7:10 pm

1 stop21h 05m

Singapore Changi

ter 4/21

9:15 am-1:50 pm

1 stop19h 35m

$793

PortlandSingapore

PDX - SIN

PDXSIN

Portland

ter 4/14

7:05 am-7:10 pm

1 stop21h 05m

Singapore Changi

ter 4/21

9:15 am-1:50 pm

1 stop19h 35m

$801

PortlandSingapore

PDX - SIN

PDXSIN

Portland

qua 3/11

3:52 pm-9:35 am

2 stops26h 43m

Singapore Changi

qua 3/18

11:55 pm-9:10 pm

2 stops36h 15m

$899

PortlandSingapore

PDX - SIN

PDXSIN

Portland

ter 4/14

5:45 pm-9:05 am

2 stops24h 20m

Singapore Changi

ter 4/21

12:35 pm-6:34 pm

2 stops44h 59m

$919

PortlandSingapore

PDX - SIN

PDXSIN

Portland

ter 4/14

10:31 am-12:40 pm

2 stops35h 09m

Singapore Changi

ter 4/21

2:00 pm-9:38 pm

2 stops22h 38m

$922

PortlandSingapore

PDX - SIN

PDXSIN

Portland

seg 3/2

9:48 pm-7:05 pm

1 stop29h 17m

Singapore Changi

qui 3/12

9:00 am-3:48 pm

1 stop21h 48m

$944

PortlandSingapore

PDX - SIN

PDXSIN

Portland

seg 3/2

3:52 pm-1:25 pm

2 stops29h 33m

Singapore Changi

qui 3/12

2:45 pm-10:41 pm

2 stops22h 56m

$960

PortlandSingapore

PDX - SIN

PDXSIN

Portland

seg 5/11

2:50 pm-7:50 am

1 stop26h 00m

Singapore Changi

sex 5/29

9:00 am-4:50 pm

1 stop22h 50m

$978

PortlandSingapore

PDX - SIN

PDXSIN

Portland

seg 3/2

3:52 pm-1:25 pm

2 stops29h 33m

Singapore Changi

ter 3/17

2:45 pm-10:41 pm

2 stops22h 56m

$997

PortlandSingapore

PDX - SIN

PDXSIN

Portland

ter 4/7

9:30 pm-12:40 pm

2 stops24h 10m

Singapore Changi

qua 4/22

2:00 pm-10:53 pm

2 stops23h 53m

$1,004

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 $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.

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

20h 35m

Direct flights

None
The fastest flight from Portland to Singapore takes 20h 35m
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
10,666 reviews
Search Air Canada flights
Singapore AirlinesPriceFrom $789Free CancellationRating
8.2
1,439 reviews
Search Singapore Airlines flights
Korean AirPriceFrom $792Free CancellationRating
8.4
1,188 reviews
Search Korean Air flights
DeltaPriceFrom $800Free CancellationRating
7.9
8,123 reviews
Search Delta flights
United AirlinesPriceFrom $870Free CancellationRating
7.4
9,209 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

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