SIN - OPO

S$ 468 Find Cheap Flights from Singapore to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Singapore to Porto departing on 13-4. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Singapore to Porto, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Singapore to Porto (SIN-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Singapore to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Singapore to Porto

Tue, 25 Nov - Tue, 2 Dec
Etihad Airways Logo
19:25 - 19:20SIN-OPO
31h 55m2 stops
Etihad Airways Logo
16:05 - 09:35OPO-SIN
33h 30m2 stops
S$ 799Etihad Airways
Find Deal
Tue, 25 Nov - Tue, 2 Dec
Air France Logo
22:50 - 10:30SIN-OPO
19h 40m1 stop
Air France Logo
11:25 - 16:55OPO-SIN
21h 30m1 stop
S$ 839Air France
Find Deal
Sun, 8 Feb - Tue, 17 Feb
Etihad Airways Logo
19:25 - 15:15SIN-OPO
27h 50m2 stops
Etihad Airways Logo
11:35 - 09:35OPO-SIN
38h 00m2 stops
S$ 849Etihad Airways
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Tue, 25 Nov - Tue, 2 Dec
Multiple Airlines Logo
22:50 - 10:30SIN-OPO
19h 40m1 stop
Multiple Airlines Logo
11:25 - 16:15OPO-SIN
20h 50m2 stops
S$ 865Multiple Airlines
Find Deal
Tue, 31 Mar - Fri, 15 May
Turkish Airlines Logo
10:20 - 09:40SIN-OPO
30h 20m1 stop
Turkish Airlines Logo
10:40 - 08:40OPO-SIN
39h 00m1 stop
S$ 897Turkish Airlines
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Mon, 9 Mar - Thu, 2 Apr
Multiple Airlines Logo
22:50 - 10:30SIN-OPO
19h 40m1 stop
Multiple Airlines Logo
11:25 - 15:30OPO-SIN
21h 05m1 stop
S$ 908Multiple Airlines
Find Deal
Tue, 17 Mar - Thu, 19 Mar
Lufthansa Logo
23:45 - 12:50SIN-OPO
21h 05m1 stop
Lufthansa Logo
12:05 - 17:25OPO-SIN
21h 20m2 stops
S$ 974Lufthansa
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Mon, 9 Mar - Thu, 2 Apr
Turkish Airlines Logo
11:40 - 15:10SIN-OPO
35h 30m1 stop
Turkish Airlines Logo
05:55 - 08:40OPO-SIN
19h 45m1 stop
S$ 984Turkish Airlines
Find Deal
Tue, 17 Mar - Thu, 19 Mar
Lufthansa Logo
23:45 - 14:45SIN-OPO
23h 00m2 stops
Lufthansa Logo
12:05 - 17:25OPO-SIN
21h 20m2 stops
S$ 1,018Lufthansa
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Mon, 16 Mar - Thu, 19 Mar
SWISS Logo
00:05 - 17:25SIN-OPO
25h 20m2 stops
SWISS Logo
11:25 - 18:00OPO-SIN
22h 35m1 stop
S$ 1,085SWISS
Find Deal

Everything you should know

Top airlines
Etihad Airways
Cheapest • from S$ 799 (return)
SWISS
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 18% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
S$ 799
Overall average: S$ 1,209
Etihad Airways
Tue 25-11Tue 2-12
SIN - OPO • 2 stops
Cheapest one-way flight
S$ 468
Typical prices: S$ 634-S$ 848
Multiple Airlines
Mon 13-4
SIN - OPO • 2 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Porto!
Booking Insights

KAYAK's insights & trends for Singapore to Porto flights

Get data-powered insights and trends into flights from Singapore to Porto to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Singapore to Porto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Singapore to Porto, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Singapore to Porto is March, where tickets cost S$ 1,002 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is S$ 2,139 and S$ 1,271 respectively.

Good to know

Low seasonAugust
Cheapest flightS$ 468
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from Singapore to Porto

When to book flights from Singapore to Porto

Are your dates flexible? Find out the best times to travel from Singapore to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Singapore to Porto

  • What is the cheapest flight from Singapore to Porto?

    In the last 3 days, the lowest price for a flight from Singapore to Porto was S$ 468 for a one-way ticket and S$ 799 for a return.

  • Which aircraft models fly most regularly from Singapore to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Singapore to Porto?

    Star Alliance is the only airline alliance operating flights between Singapore and Porto.

  • Which is the best airline for flights from Singapore to Porto, SWISS or Turkish Airlines?

    The two airlines most popular with KAYAK users for flights from Singapore to Porto are SWISS and Turkish Airlines. With an average price for the route of S$ 1,036 and an overall rating of 7.5, SWISS is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of S$ 1,074 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Singapore to Porto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Singapore to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Singapore to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Singapore is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Singapore to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Porto with an airline and back to Singapore with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Singapore to Porto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Singapore up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines flying from Singapore to Porto

 
See real verified KAYAK customer reviews for airlines flying from Singapore to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Singapore to Porto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
SWISSOverall score based on 1774 reviews
6.8Entertainment
7.4Comfort
7.7Boarding
7.1Food
8.2Crew
Airline reviews

At boarding, the locations where we had to have our passports checked prior to boarding were very unclear. Occasional staff wandered around telling people, but in busy area of the terminal this was not obvious. It was also located well after the check in desk in terms of walking to the gate. The Premium Economy service was attentive and warm. The only big draw back was lack of restrooms, and no division or even curtain between PE and Economy.

8.0 ExcellentAnonymous, Oct 2025ZRH - MIA
Read more SWISS reviews

At boarding, the locations where we had to have our passports checked prior to boarding were very unclear. Occasional staff wandered around telling people, but in busy area of the terminal this was not obvious. It was also located well after the check in desk in terms of walking to the gate. The Premium Economy service was attentive and warm. The only big draw back was lack of restrooms, and no division or even curtain between PE and Economy.

We had seats between the bathroom and a screaming baby, and did not have enough room to lay my head down on the tray table. Not ideal.

Very nice crew and great food. Easy to board just wish the flight could be shorter or seats more comfortable or more room to walk around when you get cramps in your legs from sitting so long. Crew was great and attentive and really was good food.

They lived up to the Swiss reputation of excellent operation in all aspects. Zurich is a great place to make connections to other parts of Europe.

My experience was wonderful. The professionalism of the crew was exemplary 🙂. The meals were wholesome and tasty. I have no complaints

We flew an Air Bus 330 airliner from Zurich to Boston. Our seats were terrible. I am 6'5" with long legs. I tend to refuse paying extra for extra seat room, usually it's tolerable. We were side by side in row 40, with my wife in the window and me in the aisle. The internal arm rest only rose to 45 degrees, I thought it was broken. I ended up standing by our seats in the aisle for an hour. A stewardess finally approached me and asked if I was feeling sick. I told her that it was the worst seat comfort I had ever encountered. She left and shortly came back telling me that there were center row seats two up from us where only one passenger was sitting out of the 4 seats. I took her advice and sat there most of the flight. I put m legs sideways in the adjoining empty seat. But the arm rests there as well only rose to 45 degrees, so it's a feature, not a defect. The arm rest position really limits our position. It's a horrible seating design, what are the air craft designers thinking?

Food used to be better and comfort was not attainable after 5 hours everything starts hurting.

horrible.. they cause such a problem and my daughter 14 years old was stranded in san francisco

The return was painful because of the flight that was canceled. Nobody was able to help us out. It took hours and a lot of walking on two different airports to get a new flight

I can’t even the whole trip was a catastrophe

Food is very turkish. No regard for other natinalities taste and preference. The entertainment can be improved- it was the same menu on 10/8/25 and 10/25/25. The boarding is the worst in the airline industry- I suggest you ask your staff to and watch how other airlines do it.

It was great! Great value for the price I paid. Great crew and great food in business class

Terrible. Delayed. No one would help. Just limped about like a piece of meat

I was sitting almost in the back, the seats are very tight and there’s no legroom, it’s uncomfortable for a long distance

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

This is really the rating of two flights. JFK to IST then IST to NQZ. New York to Istanbul was good. Good crew and all positives. The flight to Astana was so bad that brought it all down. Crew was nonexistent above the minimum, seats were cramped, and it was hot on the plane. Turkish Airlines seems to be slipping down to US based carriers level.

It was an old airline with the old configuration of business class seats. Not really what we signed up for for the longest leg of the trip. Disappointing.

Very bad overall. The comfort level was undeniably uncomfortable. The in-flight entertainment was no good because my screen froze and “wasn’t able to reset”. The staff were rude and non-helpful. Instead of offering me an upgrade for all inconveniences for the ticket, and seat I paid extra for, I was offered a downgraded seat all the way at the back of the aircraft. The flight was delayed for so long, making the experience at the layover airport that much more unpleasant.

Food wasn’t nice and doesn’t have halal option

Bad experience; they are not good anymore. They charge too much for luggage seat are so uncomfortable, Flight delays which may miss your next flight, they don’t care if you miss the flight or not. Zero customer services for front desk representatives Istanbul's airport I’m not using this airline any more.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Flight was a little late. The crew was courteous, food ok

Everything was perfect. That is the most beautiful flight over thenDolomites.

I wouldn't recommend Lufthansa otherwise. We took this flight only because our flight to Kittilä got cancelled and Lufthansa offered a replacement which would have been two days later, with a night in Frankfurt and another in Munich. We refused the replacement but the staff at the airport entered in the system claiming that we accepted the replacement.. We didn't get the full refund because of this.

Service was courteous and attentive. Sat in the exit row. In exchange for leg room I had people tripping over my feet to use it at a hallway from one aisle to the other, had no access to films viaa viewscreen and no underseat storage for medicines or other personal travel needs. Next time I am seated there, I will refuse the exit row.

This was the best carrier, comfort, service, good food, on time experience on a long haul flight. New, clean, quiet, smooth aircraft!!!

They offered water and chocolate I would have preferred a sandwich.

Great crew dealing with the most unprepared family with a million kids and zero sense.

Seats were very small and of poor quality. Service was good.

Problems checking in. Charged for bag which was to be included. Repeated trials with in line check in process

Everything you need to know for your flight from Singapore to Porto

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