S$ 533 Find Cheap Flights from Portland to Singapore – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Singapore departing on 6-8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Portland to Singapore

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portland to Singapore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portland to Singapore

Mon, 31 Aug - Tue, 8 Sep
Multiple Airlines Logo
07:03 - 02:25
PDX
-
SIN
28h 22m
2 stops
Multiple Airlines Logo
00:55 - 16:36
SIN
-
PDX
30h 41m
2 stops
S$ 1,285Multiple Airlines
Tue, 3 Nov - Mon, 16 Nov
Qatar Airways Logo
12:01 - 08:45
PDX
-
SIN
28h 44m
2 stops
Qatar Airways Logo
03:15 - 15:25
SIN
-
PDX
28h 10m
2 stops
S$ 1,290Qatar Airways
Tue, 3 Nov - Mon, 16 Nov
Qatar Airways Logo
08:05 - 14:55
PDX
-
SIN
38h 50m
2 stops
Qatar Airways Logo
03:15 - 16:50
SIN
-
PDX
29h 35m
2 stops
S$ 1,307Qatar Airways
Sun, 27 Sep - Tue, 6 Oct
Qatar Airways Logo
11:48 - 21:15
PDX
-
SIN
42h 27m
2 stops
Qatar Airways Logo
19:40 - 17:00
SIN
-
PDX
36h 20m
2 stops
S$ 1,312Qatar Airways
Mon, 31 Aug - Tue, 8 Sep
Qatar Airways Logo
11:48 - 21:15
PDX
-
SIN
42h 27m
2 stops
Qatar Airways Logo
03:15 - 22:01
SIN
-
PDX
33h 46m
2 stops
S$ 1,322Qatar Airways
Sun, 27 Sep - Tue, 6 Oct
Qatar Airways Logo
13:59 - 21:15
PDX
-
SIN
40h 16m
2 stops
Qatar Airways Logo
19:40 - 17:00
SIN
-
PDX
36h 20m
2 stops
S$ 1,329Qatar Airways
Wed, 7 Oct - Wed, 14 Oct
Singapore Airlines Logo
07:15 - 19:10
PDX
-
SIN
20h 55m
1 stop
Singapore Airlines Logo
09:05 - 20:50
SIN
-
PDX
26h 45m
1 stop
S$ 1,331Singapore Airlines
Thu, 12 Nov - Thu, 19 Nov
Multiple Airlines Logo
17:40 - 10:25
PDX
-
SIN
24h 45m
2 stops
Multiple Airlines Logo
08:40 - 20:46
SIN
-
PDX
28h 06m
1 stop
S$ 1,333Multiple Airlines
Sat, 26 Sep - Sun, 4 Oct
Qatar Airways Logo
12:39 - 08:50
PDX
-
SIN
29h 11m
2 stops
Qatar Airways Logo
03:15 - 17:00
SIN
-
PDX
28h 45m
2 stops
S$ 1,349Qatar Airways
Tue, 3 Nov - Tue, 17 Nov
Air Canada Logo
10:00 - 07:00
PDX
-
SIN
29h 00m
1 stop
Air Canada Logo
08:40 - 00:35
SIN
-
PDX
31h 55m
2 stops
S$ 1,355Air Canada
Booking Insights

KAYAK's insights & trends for Portland to Singapore flights

Get data-powered insights and trends into flights from Portland to Singapore to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest month to fly from Portland to Singapore?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Singapore, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Singapore is January, when tickets cost S$ 1,151 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 2,283 and S$ 1,672 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Singapore, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Portland to Singapore, you should book around 2 weeks before departure, which saves you about 27% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Find deals

Good to know

Low season

May

Cheapest flight

S$ 533
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 4% lower on average.
Flight from Portland to Singapore

FAQs - booking Singapore flights

  • How does KAYAK find such low prices on flights from Portland to Singapore?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Singapore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Singapore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Singapore is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Singapore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Portland to Singapore with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Singapore?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Portland to Singapore

Information on your arrival and departure airports

Portland (PDX)