S$ 62+ Cheap flights from Porto

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14-5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
OPO — SIN
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags

Find flights from Porto within your budget

 
Find flights departing from Porto that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 17 April 2026. In the last 7 days, Cheapflights users made a total of 200,618 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 18-5

20:10-09:40

2 stops54h 30m

Singapore Changi

Tue 2-6

20:00-13:00

2 stops24h 00m

S$ 983

PortoSingapore

OPO - SIN

OPOSIN

Porto

Wed 9-9

07:00-02:00

2 stops36h 00m

Singapore Changi

Sun 4-10

03:00-11:40

2 stops39h 40m

S$ 1,022

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 10-9

14:45-09:40

2 stops35h 55m

Singapore Changi

Tue 6-10

20:00-15:05

2 stops26h 05m

S$ 1,027

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 25-5

21:25-16:05

1 stop35h 40m

Singapore Changi

Mon 8-6

23:20-20:05

1 stop27h 45m

S$ 1,066

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 18-5

21:25-16:05

1 stop35h 40m

Singapore Changi

Tue 2-6

23:20-19:30

1 stop27h 10m

S$ 1,067

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 11-6

08:40-17:10

1 stop25h 30m

Singapore Changi

Wed 24-6

23:25-00:10

1 stop31h 45m

S$ 1,071

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 14-5

16:05-09:40

2 stops34h 35m

Singapore Changi

Mon 18-5

21:00-06:50

2 stops40h 50m

S$ 1,147
Fastest return journey

PortoSingapore

OPO - SIN

OPOSIN

Porto

Sat 6-6

16:05-03:40

3 stops28h 35m

Singapore Changi

Sun 21-6

20:00-15:30

2 stops26h 30m

S$ 1,168
Cheapest one-way

PortoSingapore

OPO - SIN

OPOSIN

Porto

Sat 20-6

22:05-09:40

2 stops28h 35m

S$ 524

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 22-6

16:05-09:40

2 stops34h 35m

S$ 609

Flights are sorted by cheapest return flights first.

Deals found on 16-4

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Best time to book a flight from Porto

Have a flexible travel schedule? Discover the best time to fly 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.

Travel insights for flights from Porto

Get recent, data-driven insights about flights from Porto including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Porto?

Use this chart to determine the optimal time to book a return flight from Porto to Singapore. Price data was last updated on 10 April 2026.

The price you pay for your flight from Porto 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?

Currently, February is the cheapest month in which you can book a flight from Porto (average of S$ 943). Flying from Porto in August will prove the most costly (average of S$ 1,685). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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.

Direct flights from Portugal

Book a direct flight from one of these other cities located in Portugal.

Related info for your journey

Access useful and relevant information related to your journey from Porto. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 17 April 2026.
  • What are the most popular destinations to fly to from Porto?

    This month, the top selected destinations from Porto are Funchal, Barcelona-El Prat Airport, Faro. Throughout the year, Funchal, Barcelona-El Prat Airport, Faro are some of the top choices made by users flying from Porto.

  • What is the cheapest flight from Porto to anywhere?

    Users have flown out of Porto for as low as S$ 37 to Barcelona-El Prat Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for S$ 140 to fly from Porto.

  • What is the cheapest month to fly from Porto?

    Currently, the cheapest month for flights from Porto is February. The most expensive month for flights is August. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • How does Cheapflights help users find flights from Porto?

    Deals for flights from Porto are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

    By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights from Porto.

  • Can Cheapflights find flights from Porto with no change fees?

    Need flexible booking options for your flight from Porto ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

    Yes, Cheapflights offers price alerts on flights from Porto so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

See more FAQs

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?

Deals for flights from Porto are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights from Porto.

Can Cheapflights find flights from Porto with no change fees?

Need flexible booking options for your flight from Porto ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on flights from Porto so you can book your travels when it’s right. The Price Alerts feature is available by clicking the bell icon next to the flight deals above and providing your email address.

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.