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Cheap flights from Porto to Singapore from S$ 454

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 1-5. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — SIN
26 Feb — 5 Mar1
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 27 January 2026.

Thu 5-319:25
OPO
-
SIN
1 stop38h 35m
SWISS
Tue 17-300:05
SIN
-
OPO
1 stop19h 10m
SWISS
Deal found 24-1S$ 877
Sat 7-311:55
OPO
-
SIN
1 stop22h 05m
SWISS
Sun 22-300:05
SIN
-
OPO
1 stop19h 05m
SWISS
Deal found 24-1S$ 883
Sat 9-506:20
OPO
-
SIN
1 stop27h 15m
Lufthansa
Mon 25-522:45
SIN
-
OPO
1 stop31h 40m
Lufthansa
Deal found 25-1S$ 907
Mon 23-206:30
OPO
-
SIN
3 stops26h 50m
Multiple Airlines
Tue 10-310:15
SIN
-
OPO
2 stops32h 25m
Multiple Airlines
Deal found 26-1S$ 916
Sat 7-313:45
OPO
-
SIN
1 stop19h 40m
Lufthansa
Mon 23-323:55
SIN
-
OPO
1 stop30h 30m
Lufthansa
Deal found 25-1S$ 920
Thu 5-311:20
OPO
-
SIN
1 stop21h 35m
Air France
Wed 18-322:50
SIN
-
OPO
1 stop19h 40m
Air France
Deal found 25-1S$ 930
Sun 26-406:20
OPO
-
SIN
1 stop27h 15m
Multiple Airlines
Tue 26-523:25
SIN
-
OPO
1 stop19h 00m
Multiple Airlines
Deal found 25-1S$ 933
Sat 7-306:15
OPO
-
SIN
1 stop27h 10m
Lufthansa
Sun 22-323:55
SIN
-
OPO
1 stop19h 45m
Lufthansa
Deal found 24-1S$ 940

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 27 January 2026.

Round-trip from

S$ 907

One-way from

S$ 454

Popular in

July

Cheapest in

February

Average price

S$ 984
Lufthansa
  • Lufthansa
  • 9-5-25-5
  • 2 total stops
  • 58h 55m total
  • Porto to Singapore
Search Deals
1-5
  • 1-5
  • 2 total stops
  • 46h 50m total
  • Porto to Singapore
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (S$ 217 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (S$ 40 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 27 January 2026.
Use the filters below to find and compare flights from Porto to Singapore that are best for you.

Fly from

Porto

Fly to

Singapore

Route

Depart

Return

Price

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 23-2

06:30-17:20

3 stops26h 50m

Singapore Changi

Tue 10-3

10:15-10:40

2 stops32h 25m

S$ 916

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 12-3

12:00-17:25

2 stops21h 25m

Singapore Changi

Wed 18-3

00:05-22:30

2 stops30h 25m

S$ 952

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 12-3

16:10-16:15

1 stop16h 05m

Singapore Changi

Thu 19-3

22:50-15:25

2 stops24h 35m

S$ 966

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 23-2

19:20-18:00

1 stop38h 40m

Singapore Changi

Mon 9-3

00:05-11:15

1 stop19h 10m

S$ 982

PortoSingapore

OPO - SIN

OPOSIN

Porto

Sat 7-3

19:50-15:55

1 stop36h 05m

Singapore Changi

Mon 23-3

23:15-17:35

1 stop26h 20m

S$ 1,023

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 23-2

17:30-15:55

1 stop38h 25m

Singapore Changi

Tue 10-3

23:15-17:45

1 stop26h 30m

S$ 1,133

PortoSingapore

OPO - SIN

OPOSIN

Porto

Tue 30-6

08:40-17:10

1 stop25h 30m

Singapore Changi

Mon 13-7

23:40-15:40

1 stop23h 00m

S$ 1,141

PortoSingapore

OPO - SIN

OPOSIN

Porto

Sun 28-6

03:00-17:10

1 stop31h 10m

Singapore Changi

Sun 12-7

23:25-18:30

1 stop26h 05m

S$ 1,179

PortoSingapore

OPO - SIN

OPOSIN

Porto

Wed 1-7

16:40-17:55

1 stop18h 15m

Singapore Changi

Wed 15-7

23:05-15:40

1 stop23h 35m

S$ 1,201

PortoSingapore

OPO - SIN

OPOSIN

Porto

Fri 1-5

19:20-01:10

2 stops46h 50m

S$ 454

Flights are sorted by cheapest return flights first.

Deals found on 25-1

Showing 1-10 of 12 results
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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

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

Use this chart to determine the optimal time to book a return flight from Porto to Singapore. Price data was last updated on 23 January 2026.

The price you pay for your flight from Porto to Singapore may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, May is the cheapest month in which you can book a flight from Porto to Singapore (average of S$ 792). Flying from Porto to Singapore in August is currently the most expensive (average of S$ 1,119). 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.

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 16h 05m. Fly via KLM 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, May is the cheapest month in which you can book a flight from Porto to Singapore (average of S$ 792). Flying from Porto to Singapore in August is currently the most expensive (average of S$ 1,119). 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

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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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