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.

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).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to Singapore as you normally would.

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

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

How can I find direct flights from Porto to Singapore?

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

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

Yes. Cheapflights offers flight deals from Porto 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.

S$ 442+ Cheap Flights from Porto to Singapore

Cheap flight deals from Porto to Singapore

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Porto to Singapore
Explore the most affordable flight options available from Porto to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2026.

Tue 1-1221:55 -

2 stops35h 20m

Tue 8-1218:45 -

2 stops27h 10m

Deal found 17-10S$ 778

Thu 12-1106:30 -

2 stops28h 10m

Wed 25-1122:05 -

2 stops32h 45m

Deal found 16-10S$ 854

Tue 17-1106:55 -

2 stops25h 20m

Tue 24-1117:45 -

2 stops26h 00m

Deal found 18-10S$ 876

Wed 2-1207:45 -

2 stops26h 55m

Wed 9-1222:05 -

2 stops23h 50m

Deal found 18-10S$ 896

Wed 11-1106:10 -

2 stops26h 05m

Wed 18-1117:50 -

2 stops33h 20m

Deal found 20-10S$ 901

Fri 20-1106:55 -

2 stops32h 05m

Thu 3-1217:50 -

2 stops29h 55m

Deal found 21-10S$ 913

Find flight deals from Porto to Singapore

Round-trip from	S$ 778
One-way from	S$ 392
Popular in	August
Cheapest in	December
Average price	S$ 1,121

1-12-8-12
4 total stops
62h 30m total
Porto to Singapore

Search Deals

21-2-31-12
2 total stops
35h 40m total
Porto to Singapore

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (S$ 324 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (S$ 53 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Tue 23-2

12:55-14:50

3 stops41h 55m

Singapore Changi

Wed 31-12

00:00-17:30

Nonstop0h 00m

S$ 442

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Tue 10-11

11:00-16:15

3 stops45h 15m

Singapore Changi

Wed 31-12

00:00-17:30

Nonstop0h 00m

S$ 478

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Tue 23-2

16:10-08:45

1 stop32h 35m

Singapore Changi

Wed 31-12

00:00-17:30

Nonstop0h 00m

S$ 910

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Wed 4-11

21:55-16:15

3 stops34h 20m

Singapore Changi

Thu 19-11

17:45-19:05

2 stops33h 20m

S$ 924

Fastest return journey

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Fri 27-11

16:25-17:40

1 stop17h 15m

Singapore Changi

Wed 31-12

00:00-17:30

Nonstop0h 00m

S$ 939

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Tue 1-12

16:10-17:40

1 stop17h 30m

Singapore Changi

Wed 31-12

00:00-17:30

Nonstop0h 00m

S$ 942

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Sat 28-11

16:25-17:40

1 stop17h 15m

Singapore Changi

Wed 31-12

00:00-17:30

Nonstop0h 00m

S$ 942

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Thu 12-11

07:05-21:55

2 stops30h 50m

Singapore Changi

Wed 25-11

16:00-12:50

2 stops28h 50m

S$ 943

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Fri 20-11

18:05-16:05

1 stop38h 00m

Singapore Changi

Thu 3-12

23:15-17:15

1 stop26h 00m

S$ 1,086

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Thu 19-11

11:25-18:05

1 stop22h 40m

Singapore Changi

Sun 14-3

00:05-11:15

1 stop19h 10m

S$ 1,089

Flights are sorted by cheapest return flights first.

Deals found on 20-10

Showing 1-10 of 15 resultsSorted by cheapest first

Best time to book a flight from Porto to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Porto with our price prediction graph.

OPO-SIN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Porto to Singapore?

Currently, December is the cheapest month in which you can book a flight from Porto to Singapore (average of S$ 957). Flying from Porto to Singapore in August is currently the most expensive (average of S$ 1,659). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Airfare is below average for this route at the moment.

Porto to Singapore flights typically cost between S$ 1,045 and S$ 1,156 in December.
The cheapest return price found within the last 5 days was S$ 778 on Multiple Airlines (1 Dec–8 Dec).

Related info for your journey

Can I find deals for flights from Porto to Singapore that include hotel bookings?
Yes. In addition to deals on Porto to Singapore flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Porto to Singapore?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Singapore.
Can I find deals for business class flights from Porto to Singapore?
Yes. Cheapflights offers flight deals from Porto 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.
What is the cheapest month to book a flight from Porto to Singapore?
Currently, December is the cheapest month in which you can book a flight from Porto to Singapore (average of S$ 957). Flying from Porto to Singapore in August is currently the most expensive (average of S$ 1,659). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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

When you search for this flight from Porto to Singapore, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Porto to Singapore by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Porto to Singapore with no change fees.

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

Of course! You can now track prices for flights from Porto to Singapore and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Porto to Singapore from S$ 442

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23-2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Porto to Singapore

Cheapest flights from Porto to SingaporeExplore the most affordable flight options available from Porto to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2026.

Explore the most affordable flight options available from Porto to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2026.

Best flights from Porto to SingaporeDiscover carefully curated flight deals from Porto to Singapore that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 October 2026.

Discover carefully curated flight deals from Porto to Singapore that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 October 2026.

Last-minute flights from Porto to SingaporeDiscover last-minute flight deals from Porto to Singapore. Data last updated 21 October 2026 and is based on user searches.

Discover last-minute flight deals from Porto to Singapore. Data last updated 21 October 2026 and is based on user searches.

One-way flights from Porto to SingaporeSearch for one-way flight options from Porto to Singapore. Find affordable one-way fares based on user searches. Data last updated 21 October 2026.

Search for one-way flight options from Porto to Singapore. Find affordable one-way fares based on user searches. Data last updated 21 October 2026.

Find flight deals from Porto to Singapore

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Porto to Singapore that are best for you.

Best time to book a flight from Porto to Singapore

Have a flexible travel schedule? Discover the best time to fly to Singapore from Porto with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Porto to Singapore?

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

Airfare is below average for this route at the moment.

Porto to Singapore flights typically cost between S$ 1,045 and S$ 1,156 in December.The cheapest return price found within the last 5 days was S$ 778 on Multiple Airlines (1 Dec–8 Dec).

Related info for your journey

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

How can I find direct flights from Porto to Singapore?

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

What is the cheapest month to book a flight from Porto to Singapore?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Porto to Singapore

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Singapore by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Porto to Singapore by cabin class

Find flights from Porto to Singapore, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Porto and Singapore flights

Browse other Porto and Singapore flight options. Last updated on 21 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Singapore

Explore flights to Singapore departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 21 October 2026.

Fly with Cheapflights

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

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

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

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

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Travel Smart

Cheapest flights from Porto to Singapore
Explore the most affordable flight options available from Porto to Singapore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 October 2026.

Best flights from Porto to Singapore
Discover carefully curated flight deals from Porto to Singapore that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 October 2026.

Last-minute flights from Porto to Singapore
Discover last-minute flight deals from Porto to Singapore. Data last updated 21 October 2026 and is based on user searches.

One-way flights from Porto to Singapore
Search for one-way flight options from Porto to Singapore. Find affordable one-way fares based on user searches. Data last updated 21 October 2026.

Porto to Singapore flights typically cost between S$ 1,045 and S$ 1,156 in December.
The cheapest return price found within the last 5 days was S$ 778 on Multiple Airlines (1 Dec–8 Dec).