Q: How much does it cost for a return flight from Portland to Singapore?

Airfare is below average for this route at the moment. Portland to Singapore flights typically cost between S$ 1,131 and S$ 1,662 in September. The cheapest return flight price found within the last 3 days was S$ 921 on Air Canada (16 Sept-30 Sept). Find deals

Question 1

How much does it cost for a return flight from Portland to Singapore?

Accepted Answer

Airfare is below average for this route at the moment.Portland to Singapore flights typically cost between S$ 1,131 and S$ 1,662 in September.
The cheapest return flight price found within the last 3 days was S$ 921 on Air Canada (16 Sept-30 Sept). Find deals

Question 2

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

Accepted Answer

To ensure you get the cheapest price possible for a flight from Portland to Singapore, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure. Find deals

Question 3

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

Accepted Answer

Travellers seeking maximum savings on their Portland to Singapore flight should consider departing on Sunday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time. Find deals

Question 4

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Accepted Answer

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm. Find deals

Question 5

E

Accepted Answer

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

Question 6

What is the cheapest day to fly return from Portland to Singapore?

Accepted Answer

Saturday flights are generally found to be more expensive for flights from Portland to Singapore. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Singapore.

Question 7

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

Accepted Answer

The best pricing can be found in the month of September. Prices to Singapore from Portland average S$ 1,330. You can even find prices in September for less than S$ 1,330, as users have found deals to Singapore from as low as S$ 888. The month of December appears to be one of the more expensive times to travel to Singapore from Portland. Flying in the targeted month can save you up to 64%.

Question 8

What is the cheapest time of day to fly from PDX to SIN?

Accepted Answer

Unlike in the morning, when flights are generally more expensive, you can save up to 46% on flights from Portland to Singapore by exploring options for tickets at midday.

Question 9

Can I find deals for flights from Portland to Singapore that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Portland to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 10

How can I find direct flights from Portland to Singapore?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Singapore.

Question 11

Can I find deals for business class flights from Portland to Singapore?

Accepted Answer

Yes. Cheapflights offers flight deals from Portland to Singapore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 12

How does Cheapflights help users find flights from Portland to Singapore?

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Singapore from Portland today with Cheapflights!

Question 13

Why should you use Cheapflights to find cheap flight tickets from Portland to Singapore?

Accepted Answer

Cheapflights helps you find that perfect flight to Singapore from Portland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Question 14

Can Cheapflights find flights from Portland to Singapore with no change fees?

Accepted Answer

Yes, we can. To see specific flights from Portland to Singapore with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Question 15

Can Cheapflights notify me if prices for flights from Portland to Singapore become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from Portland to Singapore on Cheapflights with our Price Alert feature and get notified when better prices are available.

Round-trip from	S$ 921
One-way from	S$ 573
Popular in	December
Cheapest in	September
Average price	S$ 1,329

Cheap flights from Portland to Singapore from S$ 573

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18-9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Portland to Singapore Changi are usually found in September or November, booked 73 days in advance, depart on a Monday or Tuesday and return on a Monday

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Cheapest flights from Portland to SingaporeExplore the most affordable flight options available from Portland to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2025.

Explore the most affordable flight options available from Portland to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2025.

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Best time to book a flight from Portland to Singapore

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

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

Use this chart to determine the optimal time to book a return flight from Portland to Singapore. Price data was last updated on 8 August 2025.

How much does it cost for a return flight from Portland to Singapore?

Related info for your journey

Find useful and relevant information for your journey from Portland to Singapore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Portland to Singapore that include hotel bookings?

How can I find direct flights from Portland to Singapore?

Can I find deals for business class flights from Portland to Singapore?

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How does Cheapflights help users find flights from Portland to Singapore?

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Can Cheapflights find flights from Portland to Singapore with no change fees?

Can Cheapflights notify me if prices for flights from Portland to Singapore become cheaper?

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Cheapest flights from Portland to Singapore
Explore the most affordable flight options available from Portland to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2025.