Cheap Flights from London Heathrow to Porto

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Compare London Heathrow to Porto flight deals

Find the cheapest month or even day of the year to fly to Porto

Book the best Porto fare with no extra fees

Flight deals from London Heathrow to Porto

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

Find the cheapest month to fly from London Heathrow to Porto

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

London Heathrow to Porto: Alternative routes

Compare routes from London Heathrow to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

London to Porto: Flight information

The things to know before you go.
Cheapest flight foundR 1,209
Cheapest month to flyNovember

Finding cheap flights from London Heathrow to Porto: Frequently asked questions

The best price we found for a return flight from London Heathrow to Porto is R 2,693. 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.
Currently, there are no airlines that fly direct from London Heathrow to Porto. But we found flights with one or more stops from R 2,693.
As of May 2025, there are no flights flying from London Heathrow to Porto.
The cheapest month to fly from London Heathrow to Porto is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Porto Airport on Saturday, 24 January 2026.
No airlines currently offer direct flights between London Heathrow Airport and Porto Airport. Most routes have one or more stops.
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 Porto 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 Porto is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Vueling Airlines offers the cheapest flight tickets to Porto.

Flying from London Heathrow Airport (LHR) to Porto Airport (OPO): what you need to know

  • London and Porto are both in the UTC+0 timezone. This means you won't have to change your watch on arrival.

  • To ensure you catch your LHR to OPO flight, leave plenty of time for things like check-in and baggage drop. Arriving two hours before international departures and an hour before domestic flights is the general travel rule.

  • During popular months such as July, it's best to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead for international flights when you travel during peak periods in general.

  • We make it simple to book a flight with a stopover. To see all your options for tickets from London Heathrow Airport to Porto Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to tour the city of your choice. Some great stopovers between LHR and OPO include:

    • Paris Orly Airport

    • Adolfo Suarez Madrid-Barajas Airport

    • Charles de Gaulle Airport

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

  • At the moment, R 1,209 is the lowest price we've seen for a one-way London Heathrow Airport to Porto Airport flight. The best price for a return ticket is R 2,693. Keep in mind that fares could change due to availability at the time of booking.

  • It's usually smart to book in advance if you're hoping to get cheap tickets from LHR to OPO. That's because flight prices are based on demand, which tends to rise closer to the date of departure.

  • If you're willing to be flexible with your travel dates, use the 'Whole month' tool. It'll find the lowest price across every month when searching for a flight from London Heathrow Airport to Porto Airport.

  • Snapping up cheap flights from LHR to OPO is easy with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as fares go down.

  • Choose your preferred arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from London Heathrow Airport to Porto Airport.

Handy information about London Heathrow Airport (LHR)

  • When it comes to the on-time performance of London Heathrow Airport, 68.18% of flights arrive within the expected timeframe.

  • Central London to London Heathrow Airport is around 31 kilometres. Depending on traffic, it'll take you about 55 minutes to get there if you're driving, ride-sharing or catching a cab.

  • The trip when using public transport takes roughly 1 hour.

  • Have an early flight from London Heathrow Airport to Porto Airport? Avoid rushing to the airport (and catch some extra z's) by picking one of these stays close to LHR:

Arriving at Porto Airport (OPO)

  • If you're landing on a late London Heathrow Airport to Porto Airport flight, nothing beats the convenience of staying near the terminal. Grab your luggage from the carousel and then be showered and sleeping not long after at one of these hotels near OPO:

  • Hit the road running by picking up a Porto Airport rental car. Grab your wheels from Klass Wagen, Goldcar or Drive & Go and explore beyond Porto's main sights.

  • For the lowest price, reserve your ride from Porto Airport around three weeks before you set off.

Getting from Porto Airport (OPO) to central Porto

  • From Porto Airport, Porto is approximately 16 kilometres away. It takes around 20 minutes to reach the centre driving.

  • It takes around 50 minutes to get there by public transport.

When to fly to Porto Airport (OPO)

  • The quietest month for a flight from London Heathrow Airport to Porto Airport is January, while August is the busiest. Choose the best time to visit Porto based on whether you prefer a more fast-paced or easygoing experience.

  • The warmest month in Porto is August, with the temperature ranging between 14ºC (57ºF) and 32ºC (90ºF). Book your flights from London Heathrow Airport to Porto Airport in this month if this is the type of weather you like.

  • January sees average temperatures of between 3ºC (37ºF) and 14ºC (57ºF). Search for cheap tickets from LHR to OPO sometime around then if you'd rather travel in cooler conditions.

Explore more of Portugal

  • Porto has loads to offer, but there are so many other parts of Portugal just waiting to be explored. About 274 kilometres south of Porto, a visit to Lisbon will keep you busy. Start with leading sights like Torre de Belem Garden, Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle.

  • Around 274 kilometres south of Porto, Amadora is another essential stop in Portugal. No visit is complete without checking out Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge.

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