Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Lisbon, across the 13 airlines that offer this route. We've found that 14 / Aug / 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.
The most popular airlines offering flights to Lisbon are British Airways, Air France & KLM. British Airways is the most popular one, but that doesn’t mean their flights will be the cheapest. If you can't find a flight time that suits you, why not look at flying out from a different airport?
Your flight from London Heathrow to Lisbon will take at least 2 hrs 45 mins. On average, it takes 6 hrs 40 mins to fly the 1565 km distance. Take a look at flight times to see which one works best for you.
The cheapest month to fly to Lisbon is January, while August is when the prices of flights, hotels and car hire will be at their highest. If you need somewhere to stay for your trip to Portugal, take a look at our accommodation options.