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Cheap flights from Porto to Singapore from S$ 484

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 6-12. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — SIN
11 Sep — 18 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Porto to Singapore

Enter your travel dates to find the best prices.

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 12 August 2026.

Tue 22-922:00 -
2 stops36h 00m
Tue 29-920:00 -
2 stops30h 40m
Deal found 8-8S$ 907
Wed 23-922:30 -
3 stops35h 30m
Wed 30-920:00 -
2 stops30h 45m
Deal found 9-8S$ 918
Mon 14-922:00 -
2 stops36h 00m
Wed 30-920:00 -
2 stops30h 45m
Deal found 12-8S$ 919
Thu 10-919:55 -
1 stop37h 15m
Fri 25-923:25 -
1 stop26h 40m
Deal found 12-8S$ 942
Wed 2-908:35 -
2 stops30h 20m
Thu 17-921:00 -
2 stops40h 50m
Deal found 11-8S$ 964
Thu 10-922:00 -
2 stops36h 00m
Fri 25-919:40 -
2 stops32h 45m
Deal found 10-8S$ 979
Fri 25-905:05 -
3 stops25h 10m
Fri 2-1023:25 -
2 stops31h 00m
Deal found 11-8S$ 980

Find flight deals from Porto to Singapore

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Singapore (SIN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 August 2026.

Round-trip from

S$ 907

One-way from

S$ 484

Popular in

August

Cheapest in

December

Average price

S$ 1,661
22-9-29-9
  • 22-9-29-9
  • 4 total stops
  • 66h 40m total
  • Porto to Singapore
Search Deals
6-12
  • 6-12
  • 2 total stops
  • 30h 10m total
  • Porto to Singapore
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (S$ 338 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (S$ 54 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Porto 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, Cheapflights users made 200,618 searches. Data last updated 12 August 2026.
Use the filters below to find and compare flights from Porto to Singapore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Tue 22-9

22:00-17:00

2 stops36h 00m

Singapore Changi

Tue 29-9

20:00-19:40

2 stops30h 40m

S$ 907

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Thu 10-9

19:55-16:10

1 stop37h 15m

Singapore Changi

Fri 25-9

23:25-19:05

1 stop26h 40m

S$ 942

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Fri 11-9

21:25-16:10

1 stop35h 45m

Singapore Changi

Fri 25-9

23:25-19:05

1 stop26h 40m

S$ 942

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Thu 24-9

05:05-15:00

3 stops26h 55m

Singapore Changi

Thu 1-10

19:40-23:10

2 stops34h 30m

S$ 1,233
Fastest return journey

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Fri 25-9

10:40-11:10

1 stop17h 30m

Singapore Changi

Fri 2-10

10:25-15:40

1 stop36h 15m

S$ 1,302
Cheapest one-way

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Wed 9-12

20:35-03:10

2 stops46h 35m

S$ 502

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Mon 7-12

21:00-09:35

2 stops28h 35m

S$ 521

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Tue 8-12

09:10-09:35

2 stops40h 25m

S$ 555

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Tue 8-12

19:20-18:05

1 stop38h 45m

S$ 918
Fastest single journey

PortoSingapore

OPO Porto - SIN Singapore Changi

OPOSIN

Porto

Thu 3-12

13:45-17:25

1 stop19h 40m

S$ 948

Flights are sorted by cheapest return flights first.

Deals found on 11-8

Showing 1-10 of 17 resultsSorted by cheapest first
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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.
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$ 961). Flying from Porto to Singapore in August is currently the most expensive (average of S$ 1,661). 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$ 1,486 and S$ 1,894 in September.
The cheapest return price found within the last 5 days was S$ 907 on Multiple Airlines (22 Sept–29 Sept).

Related info for your journey

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

  • How long is the flight from Porto to Singapore?

    There are many flights that can get you from Porto to Singapore in 37h 15m. Fly via British Airways to get the fastest option. The distance from Porto to Singapore is about 11769 km.

  • 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$ 961). Flying from Porto to Singapore in August is currently the most expensive (average of S$ 1,661). 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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Alternative routes for Porto to Singapore

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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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