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Cheap flights from Porto to Singapore from S$ 417

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 20-9. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — SIN
24 Aug — 31 Aug1
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 25 July 2026.

Tue 8-922:00
OPO
-
SIN
3 stops34h 00m
Multiple Airlines
Tue 15-921:00
SIN
-
OPO
2 stops29h 40m
Multiple Airlines
Deal found 24-7S$ 855
Fri 11-922:30
OPO
-
SIN
2 stops34h 30m
Multiple Airlines
Thu 24-914:10
SIN
-
OPO
2 stops35h 50m
Multiple Airlines
Deal found 23-7S$ 899
Mon 7-922:40
OPO
-
SIN
2 stops34h 20m
Multiple Airlines
Mon 14-921:00
SIN
-
OPO
2 stops24h 15m
Multiple Airlines
Deal found 24-7S$ 926
Thu 10-922:00
OPO
-
SIN
2 stops36h 00m
Multiple Airlines
Wed 23-921:00
SIN
-
OPO
3 stops31h 20m
Multiple Airlines
Deal found 23-7S$ 927
Thu 3-922:00
OPO
-
SIN
2 stops36h 00m
Multiple Airlines
Sun 20-921:00
SIN
-
OPO
2 stops27h 45m
Multiple Airlines
Deal found 20-7S$ 962

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 25 July 2026.

Round-trip from

S$ 855

One-way from

S$ 417

Popular in

July

Cheapest in

December

Average price

S$ 1,594
8-9-15-9
  • 8-9-15-9
  • 5 total stops
  • 63h 40m total
  • Porto to Singapore
Search Deals
20-9
  • 20-9
  • 3 total stops
  • 26h 50m total
  • Porto to Singapore
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (S$ 261 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (S$ 49 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 25 July 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 - SIN

OPOSIN

Porto

Mon 7-9

22:00-15:45

3 stops34h 45m

Singapore Changi

Mon 14-9

21:00-23:50

2 stops33h 50m

S$ 1,017

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 10-9

19:55-16:10

1 stop37h 15m

Singapore Changi

Wed 23-9

22:40-19:05

1 stop27h 25m

S$ 1,034

PortoSingapore

OPO - SIN

OPOSIN

Porto

Wed 23-9

20:20-16:10

1 stop36h 50m

Singapore Changi

Wed 30-9

23:25-19:05

1 stop26h 40m

S$ 1,039

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 21-9

11:45-20:25

2 stops25h 40m

Singapore Changi

Wed 30-9

18:15-19:05

2 stops31h 50m

S$ 1,246
Fastest return journey

PortoSingapore

OPO - SIN

OPOSIN

Porto

Wed 16-9

10:45-17:55

1 stop24h 10m

Singapore Changi

Sun 20-9

23:05-15:50

1 stop23h 45m

S$ 1,288

PortoSingapore

OPO - SIN

OPOSIN

Porto

Wed 9-9

10:45-17:55

1 stop24h 10m

Singapore Changi

Mon 8-3

11:35-15:25

1 stop35h 50m

S$ 1,344
Cheapest one-way

PortoSingapore

OPO - SIN

OPOSIN

Porto

Sun 20-9

05:55-15:45

3 stops26h 50m

S$ 417

PortoSingapore

OPO - SIN

OPOSIN

Porto

Tue 4-8

22:00-12:55

3 stops55h 55m

S$ 652
Fastest single journey

PortoSingapore

OPO - SIN

OPOSIN

Porto

Tue 20-10

23:35-01:10

1 stop18h 35m

S$ 657

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 10-8

22:40-15:45

2 stops34h 05m

S$ 803

Flights are sorted by cheapest return flights first.

Deals found on 22-7

Showing 1-10 of 14 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$ 970). Flying from Porto to Singapore in July is currently the most expensive (average of S$ 1,594). 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$ 1,446 and S$ 1,973 in September.
The cheapest return price found within the last 5 days was S$ 855 on Multiple Airlines (8 Sept–15 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$ 970). Flying from Porto to Singapore in July is currently the most expensive (average of S$ 1,594). 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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