SIN - OPO

S$ 488 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 1-11. 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

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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 28% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
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

Thu, 30 Oct - Thu, 6 Nov
Etihad Airways Logo
19:25 - 06:50SIN-OPO
43h 25m2 stops
Etihad Airways Logo
20:10 - 09:35OPO-SIN
29h 25m2 stops
S$ 849Etihad Airways
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Etihad Airways Logo
19:25 - 15:15SIN-OPO
27h 50m2 stops
Etihad Airways Logo
20:10 - 09:35OPO-SIN
29h 25m2 stops
S$ 853Etihad Airways
Find Deal
Wed, 29 Oct - Thu, 6 Nov
 Logo
03:15 - 17:35SIN-OPO
22h 20m2 stops
 Logo
13:00 - 21:15OPO-SIN
24h 15m2 stops
S$ 930
Find Deal
Mon, 9 Mar - Thu, 2 Apr
Turkish Airlines Logo
11:40 - 09:55SIN-OPO
30h 15m1 stop
Turkish Airlines Logo
16:50 - 07:30OPO-SIN
31h 40m1 stop
S$ 942Turkish Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Turkish Airlines Logo
23:25 - 15:10SIN-OPO
23h 45m1 stop
Turkish Airlines Logo
10:55 - 10:00OPO-SIN
39h 05m1 stop
S$ 943Turkish Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
 Logo
10:15 - 07:45SIN-OPO
29h 30m2 stops
 Logo
14:00 - 21:15OPO-SIN
23h 15m3 stops
S$ 957
Find Deal
Tue, 28 Oct - Wed, 5 Nov
SWISS Logo
00:05 - 18:30SIN-OPO
26h 25m1 stop
SWISS Logo
19:20 - 18:00OPO-SIN
38h 40m1 stop
S$ 1,015SWISS
Find Deal
Tue, 28 Oct - Wed, 5 Nov
SWISS Logo
00:05 - 11:15SIN-OPO
19h 10m1 stop
SWISS Logo
12:10 - 18:00OPO-SIN
21h 50m1 stop
S$ 1,040SWISS
Find Deal
Mon, 9 Mar - Thu, 2 Apr
KLM Logo
22:50 - 18:50SIN-OPO
28h 00m2 stops
KLM Logo
05:00 - 08:25OPO-SIN
20h 25m2 stops
S$ 1,141KLM
Find Deal
Tue, 14 Oct - Sat, 22 Nov
KLM Logo
00:40 - 15:35SIN-OPO
21h 55m1 stop
KLM Logo
06:00 - 16:15OPO-SIN
26h 15m1 stop
S$ 1,273KLM
Find Deal

Everything you should know

Top airlines
Etihad Airways
Cheapest • from S$ 849 (return)
SWISS
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 19% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
S$ 849
Overall average: S$ 1,093
Etihad Airways
Thu 30-10Thu 6-11
SIN - OPO • 2 stops
Cheapest one-way flight
S$ 488
Typical prices: S$ 648-749
Multi-carrier
Sat 1-11
SIN - OPO • 2 stops
Start a new search
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$ 990 (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$ 2,113 and S$ 1,339 respectively.

Good to know

Low seasonAugust
Cheapest flightS$ 488
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly and prices are also 9% 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$ 381 for a one-way ticket and S$ 663 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, SkyTeam, and oneworld are the airline alliances operating flights between Singapore and Porto, with oneworld being the most commonly used for this route.

  • 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$ 1,040 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$ 1,055 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 1730 reviews
8.2Crew
7.4Comfort
6.8Entertainment
7.7Boarding
7.1Food
Airline reviews

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

10.0 ExcellentAnonymous, Sept 2025DEN - ZRH
Read more SWISS reviews

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

Not good. We returned on united airlines and the food was horrible.

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

The crew was very friendly and nice! Very smooth flight.

The whole experience was positive. Crew very friendly and helpful. Very greedy with pre-seat allocation. Web site too complicated

All the flight to USA were arranged to E terminal whereas from Dubrovnik arriving on Zurich is on A80, have to walk all the way from A to E, even need transfer bus , for short transfer time like in an hour, we have to work fast, as soon as arrived at E, it is about time to boarding, pretty tight schedule, I hope Zurich airport can make some rearrangement so that transfer people do not have to walk long way. For short transfer time people, such as 50 min, this is even impossible if still like this.

They didn't give us Nothing to eat, come on..... 1 package of chips and a glass of soda won't do anything to the company

The cushion of the seats are old and very thin. The food can be more tasty or come with salt packages

It was ok. Not the experience I expected from Turkish airlines

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.

This flight was in the air when the national power outage happened on 28 April 2025 in Spain and Portugal. As a result Lisbon airport was closed and the flight was diverted to Porto. There were no phones, internet or ATMs working and the Turkish Airlines ground crew in Porto were trying to find alternative transport to Lisbon (by bus). This did not materialise until late in the evening. The Turkish Airlines ground crew suggested that passengers may find their own way of getting to Lisbon. That in itself is a failure of Turkish Airlines, but understandable as there were no means of communication. The Turkish Airlines ground crew also said that any expenses insured for travel to Lisbon will be refunded by the Airline through their website. Unfortunately, I could find no way to travel back to Lisbon other than to hitch hike with an Uber driver. Because no systems were available and no credit card payment possible I paid the driver 140 Euros in cash with no receipt as systems were down. I arrived at my Lisbon hotel at 23:30 (flight was scheduled to land at 12:30). Upon contacting Turkish Airlines for compensation they are not willing to do anything as I do not have an invoice for my expenses. They do not even consider the 10 hours of delay and inactivity on their part as a reason to provide any sort of curtesy towards me. I find their behaviour appalling.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.