Cheap flights from London Heathrow Airport to Lisbon from £59

In general, February is the cheapest month to fly from London Heathrow Airport to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £146. If you are unable to visit Lisbon during the month of February, then departing from London Heathrow Airport during the month January is also very affordable. Most momondo users find prices during this month for around £148.

The cheapest day to depart on your flight to Lisbon is on a Tuesday when prices can be found for as low as £228. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Lisbon for around £279.

In the evening is the cheapest time of day to fly from London Heathrow Airport to Lisbon when you can find flight prices for as low as £221. Flying to Lisbon in the evening is an ideal time because this is during off-peak travel hours. Flights to Lisbon are more costly in the morning, with an average ticket price of £267. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Heathrow to Lisbon Humberto Delgado for the best London Heathrow - Lisbon Humberto Delgado flight prices

You are more likely to see cheaper flights to Lisbon from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around £207 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from London Heathrow Airport for as low as £181 on momondo.

There are 3 cabin classes available to choose from on London Heathrow to Lisbon Humberto Delgado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 2% on your flight if you consider stops on a London Heathrow Airport to Lisbon flight.

As of March 2026, prices for London Heathrow Airport to Lisbon flights are approximately 30% more expensive when compared to flights at the same time last year.

TAP AIR PORTUGAL, KLM, and British Airways are the most popular carriers operating from London Heathrow to Lisbon Humberto Delgado

TAP AIR PORTUGAL, British Airways and easyJet are the top three most popular airlines that fly to Lisbon from London Heathrow Airport according to our data. TAP AIR PORTUGAL is the first choice among our users, with 82% of people opting to fly with this airline when travelling to Lisbon. Keep in mind that there are 10 different airlines that fly to Lisbon on a routine basis, so you have a few additional options to choose from.

Historically, on average around 29% of flights between London and Lisbon have experienced a delay on any given week. The average delay length over the past 12 months has been 108 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 21% of their flights experiencing any sort of delay.

Madrid (MAD) was the most common stop: 23% of momondo users choosing one-stop flights on this route connected there.

Flights via Paris (CDG) offer the lowest average return price of £173.

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 5h 50m.

Frankfurt am Main (FRA) has the shortest average stopover time for this route: 1h 08m.

The number of flights available between London Heathrow Airport and Lisbon is 62 per day as of March 2026. The most frequent departure time is 08:00, with 51% of daily flights leaving at midday.

As of March 2026, 435 flights take off from London Heathrow Airport and land in Lisbon each week. The most common flight departure day for this route is Fri, with 25% of weekly flights taking off on this day.