Find flights
When to book
FAQs

Cheap flights from Porto to Singapore from S$ 522

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
23 May — 30 May1
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 23 April 2026.

Thu 11-606:20
OPO
-
SIN
1 stop27h 15m
Lufthansa
Fri 26-622:45
SIN
-
OPO
1 stop31h 40m
Lufthansa
Deal found 20-4S$ 977
Mon 18-520:10
OPO
-
SIN
2 stops54h 30m
Multiple Airlines
Mon 1-620:00
SIN
-
OPO
2 stops31h 05m
Multiple Airlines
Deal found 18-4S$ 980
Tue 2-622:00
OPO
-
SIN
2 stops28h 40m
Multiple Airlines
Tue 9-621:00
SIN
-
OPO
2 stops23h 15m
Multiple Airlines
Deal found 18-4S$ 985
Tue 15-906:00
OPO
-
SIN
1 stop27h 30m
Multiple Airlines
Tue 29-923:05
SIN
-
OPO
1 stop19h 20m
Multiple Airlines
Deal found 21-4S$ 987
Sun 24-505:55
OPO
-
SIN
3 stops31h 35m
Multiple Airlines
Mon 8-620:00
SIN
-
OPO
2 stops31h 05m
Multiple Airlines
Deal found 19-4S$ 1,029
Thu 11-620:10
OPO
-
SIN
2 stops54h 30m
Multiple Airlines
Fri 26-621:00
SIN
-
OPO
2 stops26h 10m
Multiple Airlines
Deal found 21-4S$ 1,052
Sat 2-513:45
OPO
-
SIN
2 stops28h 25m
Multiple Airlines
Thu 7-521:00
SIN
-
OPO
2 stops40h 50m
Multiple Airlines
Deal found 20-4S$ 1,056

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 23 April 2026.

Round-trip from

S$ 977

One-way from

S$ 522

Popular in

August

Cheapest in

February

Average price

S$ 1,134
Lufthansa
  • Lufthansa
  • 11-6-26-6
  • 2 total stops
  • 58h 55m total
  • Porto to Singapore
Search Deals
1-5
  • 1-5
  • 2 total stops
  • 49h 40m total
  • Porto to Singapore
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (S$ 313 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (S$ 66 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 23 April 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

Tue 2-6

22:00-09:40

2 stops28h 40m

Singapore Changi

Tue 9-6

21:00-13:15

2 stops23h 15m

S$ 985
Fastest return journey

PortoSingapore

OPO - SIN

OPOSIN

Porto

Tue 15-9

06:00-16:30

1 stop27h 30m

Singapore Changi

Tue 29-9

23:05-11:25

1 stop19h 20m

S$ 987

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 11-6

06:00-16:30

1 stop27h 30m

Singapore Changi

Fri 26-6

22:45-23:25

1 stop31h 40m

S$ 990

PortoSingapore

OPO - SIN

OPOSIN

Porto

Sun 24-5

05:55-20:45

3 stops31h 50m

Singapore Changi

Mon 8-6

20:00-18:05

2 stops29h 05m

S$ 1,015

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 11-6

10:10-21:55

2 stops28h 45m

Singapore Changi

Fri 26-6

22:45-23:25

1 stop31h 40m

S$ 1,074

PortoSingapore

OPO - SIN

OPOSIN

Porto

Sun 7-6

21:45-16:15

2 stops35h 30m

Singapore Changi

Sun 14-6

21:00-20:40

2 stops30h 40m

S$ 1,102

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 11-6

20:10-09:40

2 stops54h 30m

Singapore Changi

Mon 15-6

21:00-19:20

2 stops29h 20m

S$ 1,161

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 28-5

20:10-09:40

2 stops30h 30m

Singapore Changi

Mon 1-6

21:00-06:50

2 stops40h 50m

S$ 1,198

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 20-8

20:10-09:40

2 stops30h 30m

Singapore Changi

Mon 31-8

21:00-16:10

2 stops26h 10m

S$ 1,257

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 11-6

06:10-17:55

1 stop28h 45m

Singapore Changi

Mon 15-6

23:05-15:50

1 stop23h 45m

S$ 1,282

Flights are sorted by cheapest return flights first.

Deals found on 20-4

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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 17 April 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 43 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, February is the cheapest month in which you can book a flight from Porto to Singapore (average of S$ 945). Flying from Porto to Singapore in August is currently the most expensive (average of S$ 1,697). 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?

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 27h 30m. Fly via Lufthansa 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, February is the cheapest month in which you can book a flight from Porto to Singapore (average of S$ 945). Flying from Porto to Singapore in August is currently the most expensive (average of S$ 1,697). 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

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.
Lisbon to Singapore flights
Faro to Singapore flights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.