S$ 597 Find Cheap Flights from Portland to Singapore

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 31-8. 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

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Best Singapore Flight Deals from Portland

Cheapest return prices found by our users on KAYAK in the last 72 hours
Singapore
Singapore1 stopS$ 936
Singapore
Singapore1 stopS$ 936

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

Thu, 4 Sep - Thu, 25 Sep
Air Canada Logo
10:00 - 07:05PDX-SIN
30h 05m1 stop
Air Canada Logo
09:10 - 14:46SIN-PDX
20h 36m1 stop
S$ 936Air Canada
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Tue, 28 Oct - Tue, 11 Nov
Air Canada Logo
19:00 - 07:55PDX-SIN
21h 55m1 stop
Air Canada Logo
21:00 - 09:15SIN-PDX
28h 15m2 stops
S$ 937Air Canada
Find Deal
Thu, 4 Sep - Thu, 25 Sep
Air Canada Logo
10:00 - 07:05PDX-SIN
30h 05m1 stop
Air Canada Logo
08:10 - 18:46SIN-PDX
25h 36m2 stops
S$ 945Air Canada
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Wed, 17 Sep - Tue, 30 Sep
Air Canada Logo
19:40 - 23:20PDX-SIN
36h 40m2 stops
Air Canada Logo
09:10 - 23:01SIN-PDX
28h 51m1 stop
S$ 947Air Canada
Find Deal
Tue, 30 Sep - Thu, 30 Oct
Air Canada Logo
15:25 - 07:05PDX-SIN
24h 40m1 stop
Air Canada Logo
06:35 - 18:30SIN-PDX
26h 55m2 stops
S$ 952Air Canada
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Tue, 28 Oct - Tue, 11 Nov
Air Canada Logo
19:00 - 00:55PDX-SIN
38h 55m2 stops
Air Canada Logo
21:00 - 09:15SIN-PDX
28h 15m2 stops
S$ 954Air Canada
Find Deal
Tue, 5 Aug - Tue, 12 Aug
Korean Air Logo
11:15 - 23:40PDX-SIN
21h 25m2 stops
Korean Air Logo
07:30 - 16:59SIN-PDX
24h 29m2 stops
S$ 1,034Korean Air
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Wed, 23 Jul - Thu, 31 Jul
Korean Air Logo
06:15 - 23:40PDX-SIN
26h 25m2 stops
Korean Air Logo
07:30 - 14:53SIN-PDX
22h 23m2 stops
S$ 1,035Korean Air
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Wed, 15 Oct - Wed, 29 Oct
Korean Air Logo
09:10 - 05:00PDX-SIN
28h 50m2 stops
Korean Air Logo
22:30 - 13:19SIN-PDX
29h 49m2 stops
S$ 1,037Korean Air
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Thu, 2 Oct - Sun, 12 Oct
 Logo
07:30 - 07:05PDX-SIN
32h 35m2 stops
 Logo
23:40 - 14:46SIN-PDX
30h 06m2 stops
S$ 1,056
Find Deal
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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 September, when tickets cost S$ 1,140 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is S$ 1,854 and S$ 1,401 respectively.

What’s the cheapest day of the week to fly from Portland to Singapore?

The average price of all round-trip flights from Portland to Singapore clicked on KAYAK for each day over the last 12 months.

For Portland to Singapore, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Singapore back to Portland, the best deals are generally found on Monday, with Friday being the most expensive.

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 the flight from Portland to Singapore, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.


Good to know

Low seasonMay
High seasonSeptember
Cheapest flightS$ 597
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly and prices are also 15% 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.

  • What is the cheapest time of day to fly to Singapore?

    The cheapest time of day to fly to Singapore is generally at night, when retur flights cost S$ 886 on average. The most expensive time of day to fly to Singapore is generally in the morning, which is peak travel time and where the average cost of a ticket is S$ 1,622.

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

Information on your arrival and departure airports

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