Cheap Flights from Porto to London

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Flight deals from Porto to London

Looking for a cheap last-minute deal or the best return flight from Porto to London? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Porto to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Porto to London flights are currently cheapest in March.

Direct flights from Porto to London

Alternative Porto to London routes

Looking for the cheapest, fastest or easiest route from Porto to London? You could fly into the following airports instead.

Porto to London: Flight information

The things to know before you go.
Cheapest flight found53 €
Cheapest month to flyMarch
Average flight time2 hrs, 23 mins
Most popular airlineRyanair
Average flights per week83

Finding cheap flights from Porto to London: Frequently asked questions

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Porto to London is 53 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 23 minutes is the average flight time from Porto to London.
Ryanair, easyJet and TAP Air Portugal fly direct from Porto to London.
As of March 2025, there are 83 flights per week flying from Porto to London.
The cheapest month to fly from Porto to London is usually March 2025.
If you're flying from Porto Airport, the cheapest airport near London is London Stansted – which is 48.6 km away from the centre of London. We've found flights into this airport from 53 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Porto Airport to London on Friday, 28 March 2025.
Yes – the average flight time is 2 hours and 23 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 6°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
Currently, Ryanair offers the cheapest flight tickets to London.

Travelling from Porto Airport (OPO) to London: what you need to know

  • London's timezone is UTC+0, which is the same as Porto (the location of Porto Airport).

  • Porto Airport (OPO) to London Gatwick Airport (LGW) is the most traveled route, with 71 weekly departures to pick from. If you prefer a later start to the day, the last flight from OPO to LGW is with easyJet at 21:10. Choose the first departure with TAP Air Portugal at 06:00 if you want to get on your way earlier.

  • Leave enough time to catch your flight from OPO to London. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak month like August? Major public holidays and other high seasons can mean longer lines and delays at check-in and security. Be extra cautious and arrive up to four hours before an international flight and two hours before domestic departures.

  • Reserve a direct flight from Porto Airport to London and skip the connections. OPO offers nonstop options to these London airports:

    • London Gatwick Airport (LGW)

    • Stansted Airport (STN)

    • London Luton Airport (LTN)

  • Direct flights from Porto Airport to London are operated by numerous airlines. Book your journey with one of these:

  • We make it easy to find a flight from OPO to London that includes a stopover. To see your options, deselect 'Direct flights only.' Next, select a flight offering a stop long enough to explore your chosen city. Some popular stopovers include:

    • Charles de Gaulle Airport (CDG)

    • Geneve Airport (GVA)

    • Paris Orly Airport (ORY)

  • You can visit United Kingdom for tourism purposes without a visa if you have a passport from Portugal. But before booking your cheap tickets from Porto Airport to London, double-check for the newest rules and regulations. Visa rules can change, and you may need some travel documents if your trip is for business or another reason.

  • The journey from central Porto to OPO takes around 49 minutes by public transport. If you drive, ride-share or get a cab, you'll cover the 16 kilometres in 21 minutes or so, depending on traffic.

  • Need a convenient hotel close to OPO? If you're boarding an early flight from Porto Airport to London, these accommodation options will have you moments from your departure lounge:

How to find the cheapest flights from Porto Airport (OPO) to London

  • 15 € is the best price for a one-way ticket from Porto Airport to London. A return flight starts at 53 €. These prices may change depending on demand.

  • Book 11 months before flying. After looking at the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from OPO to London.

  • The cheapest month for tickets from Porto Airport to London is July. You can easily compare prices using the 'Whole month' tool to find the cheapest travel date.

  • Locking in a cheap ticket from OPO to London is a piece of cake with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch when the price has dropped.

  • Play around with the filters to find your ideal trip. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Porto Airport to London, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and journey duration.

Airports in London

London Heathrow Airport (LHR)

  • London Heathrow Airport (LHR) to central London takes around 57 minutes by car. It's approximately 31 kilometres away.

  • If you're taking public transport, expect a journey of around 1 hour and 1 minute.

  • If you're coming in on a late flight from Porto Airport to London, few things beat the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and relaxing not long after at one of these accommodation options near LHR:

London Gatwick Airport (LGW)

  • Once your flight from Porto Airport to London has arrived, you can make your way to the city centre in about 1 hour and 19 minutes by car. Central London is roughly 80 kilometres from London Gatwick Airport (LGW).

  • The trip will take roughly 1 hour and 26 minutes on public transport.

  • After your flight from OPO to London, kick back at a hotel near LGW. These are some great accommodation options that'll help you get into relaxation mode:

Best time to go to London

  • July is the busiest month to board a flight from Porto Airport to London while February is the quietest. To work out the best time to go to London, consider whether you prefer a lively vibe or a quieter pace.

  • The warmest month in London is July, with temperatures ranging between 11ºC and 26ºC. Lock in your flights from Porto Airport to London in this month if this is the type of weather you enjoy.

  • Search for cheap flights from OPO to London in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC and 9ºC on average.

More about London

Complete your London trip with a car rental

  • Pick one of our car rentals in London and see the sights on your own schedule. Easily compare rates in one place to find your ideal ride once you've locked in your hotel and cheap flights from Porto Airport to London.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.