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Cheap flights from Porto to Singapore from S$ 474

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 27-8. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — SIN
18 Jun — 25 Jun1
1 adult

Cheap 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 13 June 2025.

Round-trip from

S$ 815

One-way from

S$ 474

Popular in

July

Cheapest in

February

Average price

S$ 1,085
Lufthansa
  • Lufthansa
  • 28-8-20-11
  • 2 total stops
  • 42h 20m total
  • Porto to Singapore
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27-8
  • 27-8
  • 1 total stop
  • 30h 35m total
  • Porto to Singapore
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Highest demand for flights based on searches. 12% potential increase in price (S$ 210 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (S$ 39 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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Find flight deals from Porto to Singapore

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 13 June 2025.

Thu 28-811:05OPO - SIN
1 stop22h 35mLufthansa
Thu 20-1123:55SIN - OPO
1 stop19h 45mLufthansa
Deal found 12-6S$ 815
Wed 15-1006:15OPO - SIN
1 stop27h 25mMultiple Airlines
Thu 30-1000:05SIN - OPO
1 stop25h 25mMultiple Airlines
Deal found 11-6S$ 917
Thu 4-1212:05OPO - SIN
1 stop21h 45mSWISS
Mon 9-300:05SIN - OPO
1 stop19h 10mSWISS
Deal found 11-6S$ 934
Sun 22-609:20OPO - SIN
1 stop24h 10mAir France
Mon 7-722:30SIN - OPO
1 stop24h 00mAir France
Deal found 11-6S$ 946
Wed 27-806:15OPO - SIN
1 stop26h 15mKLM
Fri 21-1122:55SIN - OPO
2 stops24h 30mKLM
Deal found 11-6S$ 1,006
Mon 13-1020:35OPO - SIN
2 stops36h 10mIberia
Sat 25-1010:30SIN - OPO
2 stops29h 10mIberia
Deal found 11-6S$ 1,175

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 13 June 2025.
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

Thu 28-8

11:05-16:40

1 stop22h 35m

Singapore Changi

Thu 20-11

23:55-11:40

1 stop19h 45m

S$ 815

PortoSingapore

OPO - SIN

OPOSIN

Porto

Wed 15-10

06:15-16:40

1 stop27h 25m

Singapore Changi

Thu 30-10

00:05-16:30

1 stop24h 25m

S$ 897

PortoSingapore

OPO - SIN

OPOSIN

Porto

Thu 4-12

12:05-17:50

1 stop21h 45m

Singapore Changi

Mon 9-3

00:05-11:15

1 stop19h 10m

S$ 934

PortoSingapore

OPO - SIN

OPOSIN

Porto

Sun 22-6

09:20-16:30

1 stop24h 10m

Singapore Changi

Mon 7-7

22:30-15:30

1 stop24h 00m

S$ 946

PortoSingapore

OPO - SIN

OPOSIN

Porto

Wed 27-8

06:15-15:30

1 stop26h 15m

Singapore Changi

Fri 21-11

22:55-15:25

2 stops24h 30m

S$ 1,006

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 13-10

20:35-15:45

2 stops36h 10m

Singapore Changi

Sat 25-10

10:30-08:40

2 stops29h 10m

S$ 1,175

PortoSingapore

OPO - SIN

OPOSIN

Porto

Wed 27-8

15:15-04:50

1 stop30h 35m

S$ 474

PortoSingapore

OPO - SIN

OPOSIN

Porto

Fri 29-8

11:55-18:25

2 stops23h 30m

S$ 837

PortoSingapore

OPO - SIN

OPOSIN

Porto

Mon 1-9

16:20-16:30

1 stop17h 10m

S$ 886

PortoSingapore

OPO - SIN

OPOSIN

Porto

Tue 2-9

18:50-15:30

1 stop37h 40m

S$ 888

Flights are sorted by cheapest return flights first.

Deals found on 12-6

Showing 1-10 of 14 results
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 9 June 2025.

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 26 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Rainfall in Singapore by month

Plan your trip to Singapore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Singapore ranges from 150.0 - 269.0 inches per month. December is typically the wettest month, when rainfall can reach 269.0 mm. July is typically the driest time to visit Singapore when rainfall is around 150.0 mm.

Temperature in Singapore by month

Plan your trip to Singapore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Singapore, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 26.0 C).

Reviews of airlines servicing Singapore

Get insights into the airlines that provide service to Singapore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Singapore. Reviews last updated 13 June 2025.
Read reviews from past customers who have flown KLM, Finnair and Air France from Porto to Singapore. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Finnair
7.6
Good
1,290 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Air France
7.5
Good
1,463 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
SWISS
7.5
Good
1,624 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Ethiopian Air
7.2
Good
781 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Overall

7.8

Entertainment

7.1

Comfort

7.7

Food

7.2

Boarding

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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.

  • What are the cheapest airlines flying from Porto to Singapore round-trip?

    Flying on Lufthansa is currently your cheapest option to Singapore, with prices starting at S$ 815. Additional round-trip tickets that might be worth considering are offered by SWISS and Air France, with the lowest prices starting at S$ 934 and S$ 946, respectively. These flights start at 27% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Porto to Singapore one-way?

    For one-way options, check prices for Finnair. According to our data, you can fly for as low as S$ 837. Users have also found prices from S$ 886 and S$ 888 on Air France and KLM, respectively.

  • 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.

See more FAQs

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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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