Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Porto, across the nine airlines that offer this route. We've found that 24 / Jul / 2025 is the cheapest date to travel at the moment, but it's best to go through the results to see which flight suits you.
There are 46 flights from London Heathrow to or via Porto every week. Out of the nine available airlines, the most popular ones are Air France, British Airways & Iberia Airlines. But that doesn’t necessarily mean they’ll be the best option for your travel dates. To see as many flights as possible, try widening your search to include other departure airports.
Generally speaking, the flight from London Heathrow to Porto takes around 7 hrs 30 mins. The fastest flight takes 4 hrs 20 mins to cover the 1299 km distance. You can view all flight times yourself in the results list.
If you need somewhere to stay for your trip to Portugal, take a look at our accommodation options.
