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Cheap flights from Portland to Singapore from $413

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 7/22. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Singapore

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 6:35 pm
PDX
-
SIN
20h 35m
1 stop
United Airlines Logo
8:45 am - 10:45 pm
SIN
-
PDX
29h 00m
1 stop
$891United Airlines
Mon, Aug 3 - Mon, Aug 17
United Airlines Logo
7:07 pm - 8:15 pm
PDX
-
SIN
34h 08m
2 stops
United Airlines Logo
10:10 am - 11:07 pm
SIN
-
PDX
27h 57m
2 stops
$895United Airlines
Mon, Oct 26 - Thu, Oct 29
United Airlines Logo
6:46 pm - 6:35 pm
PDX
-
SIN
32h 49m
1 stop
United Airlines Logo
8:35 pm - 10:11 am
SIN
-
PDX
28h 36m
1 stop
$896United Airlines
Sun, Aug 2 - Thu, Aug 20
United Airlines Logo
3:36 pm - 6:55 am
PDX
-
SIN
47h 19m
2 stops
United Airlines Logo
10:20 pm - 12:54 am
SIN
-
PDX
18h 34m
1 stop
$900United Airlines
Wed, Nov 11 - Mon, Dec 7
United Airlines Logo
11:16 am - 6:35 pm
PDX
-
SIN
40h 19m
1 stop
United Airlines Logo
8:35 pm - 1:14 pm
SIN
-
PDX
31h 39m
2 stops
$901United Airlines
Sun, Aug 2 - Wed, Aug 19
United Airlines Logo
5:15 am - 6:35 pm
PDX
-
SIN
22h 20m
1 stop
United Airlines Logo
6:15 am - 12:30 am
SIN
-
PDX
33h 15m
2 stops
$902United Airlines
Mon, Aug 3 - Thu, Aug 20
United Airlines Logo
5:00 am - 6:15 am
PDX
-
SIN
34h 15m
2 stops
United Airlines Logo
6:15 am - 10:45 pm
SIN
-
PDX
31h 30m
2 stops
$907United Airlines
Tue, Aug 4 - Tue, Aug 18
United Airlines Logo
6:46 pm - 6:35 pm
PDX
-
SIN
32h 49m
1 stop
United Airlines Logo
6:15 am - 10:45 pm
SIN
-
PDX
31h 30m
2 stops
$908United Airlines
Sun, Aug 2 - Tue, Aug 18
United Airlines Logo
7:00 am - 12:45 am
PDX
-
SIN
26h 45m
2 stops
United Airlines Logo
8:45 am - 8:59 pm
SIN
-
PDX
27h 14m
1 stop
$910United Airlines
Mon, Aug 3 - Mon, Aug 17
United Airlines Logo
5:15 am - 12:45 am
PDX
-
SIN
28h 30m
2 stops
United Airlines Logo
6:15 am - 10:45 pm
SIN
-
PDX
31h 30m
2 stops
$914United Airlines
Mon, Aug 3 - Tue, Aug 18

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Air Canada flights from Portland to Singapore

Our best Air Canada deals on Portland to Singapore flight tickets
Air Canada
Nov 11
PDX10:00 amPortland
29h 00m
1 stop
SIN7:00 amSingapore Changi
Dec 8
SIN8:40 amSingapore Changi
16h 46m
1 stop
PDX9:26 amPortland
$918
Air Canada
Oct 1
PDX10:10 amPortland
28h 05m
1 stop
SIN5:15 amSingapore Changi
Oct 10
SIN7:00 amSingapore Changi
22h 51m
1 stop
PDX2:51 pmPortland
$949
Air Canada
Aug 2
PDX7:45 pmPortland
18h 30m
1 stop
SIN5:15 amSingapore Changi
Aug 18
SIN7:00 amSingapore Changi
17h 31m
1 stop
PDX9:31 amPortland
$970

ANA flights from Portland to Singapore

Our best ANA deals on Portland to Singapore flight tickets
ANA
Aug 17
PDX7:00 amPortland
26h 45m
2 stops
SIN12:45 amSingapore Changi
Sep 1
SIN6:15 amSingapore Changi
27h 04m
2 stops
PDX6:19 pmPortland
$947
ANA
Nov 11
PDX5:30 amPortland
44h 05m
2 stops
SIN5:35 pmSingapore Changi
Dec 8
SIN6:35 amSingapore Changi
27h 56m
2 stops
PDX6:31 pmPortland
$954
ANA
Nov 3
PDX6:53 amPortland
42h 42m
2 stops
SIN5:35 pmSingapore Changi
Nov 17
SIN6:35 amSingapore Changi
23h 59m
2 stops
PDX2:34 pmPortland
$959

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 June 30, 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

Cheapest round-trip
Quickest round-trip

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 8/3

7:00 am-6:35 pm

1 stop20h 35m

Singapore Changi

Mon 8/17

8:45 am-10:45 pm

1 stop29h 00m

$891

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 10/26

7:07 pm-8:15 pm

2 stops34h 08m

Singapore Changi

Thu 10/29

10:10 am-11:07 pm

2 stops27h 57m

$895

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 8/2

6:46 pm-6:35 pm

1 stop32h 49m

Singapore Changi

Thu 8/20

8:35 pm-10:11 am

1 stop28h 36m

$896

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Wed 11/11

3:36 pm-6:55 am

2 stops47h 19m

Singapore Changi

Mon 12/7

10:20 pm-12:54 am

1 stop18h 34m

$900

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 8/2

11:16 am-6:35 pm

1 stop40h 19m

Singapore Changi

Wed 8/19

8:35 pm-1:14 pm

2 stops31h 39m

$901

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 8/3

5:15 am-6:35 pm

1 stop22h 20m

Singapore Changi

Thu 8/20

6:15 am-12:30 am

2 stops33h 15m

$902

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Tue 8/4

5:00 am-6:15 am

2 stops34h 15m

Singapore Changi

Tue 8/18

6:15 am-10:45 pm

2 stops31h 30m

$907

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Sun 8/2

6:46 pm-6:35 pm

1 stop32h 49m

Singapore Changi

Tue 8/18

6:15 am-10:45 pm

2 stops31h 30m

$908

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 8/3

7:00 am-12:45 am

2 stops26h 45m

Singapore Changi

Mon 8/17

8:45 am-8:59 pm

1 stop27h 14m

$910

PortlandSingapore

PDX - SIN

PDXSIN

Portland

Mon 8/3

5:15 am-12:45 am

2 stops28h 30m

Singapore Changi

Tue 8/18

6:15 am-10:45 pm

2 stops31h 30m

$914

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 August is, on average, the cheapest month to fly to Singapore from Portland, with most prices found around $209. If you aren’t able to travel to Singapore during the month of August, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $718.

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 $1,097 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 $822 on momondo.

Can stopping save me money on Portland to Singapore flights?

You could potentially save up to 2% 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

19h 50m

Direct flights

None
The fastest flight from Portland to Singapore takes 19h 50m
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?

  • 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 $726Free CancellationRating
7.1
11,271 reviews
Search Air Canada flights
Singapore AirlinesPriceFrom $837Free CancellationRating
8.2
1,556 reviews
Search Singapore Airlines flights
United AirlinesPriceFrom $1,024Free CancellationRating
7.4
9,895 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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