Cheap flights from London Heathrow Airport to Lisbon from £49

In general, January 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 £151. If you are unable to visit Lisbon during the month of January, then departing from London Heathrow Airport during the month February is also very affordable. Most momondo users find prices during this month for around £151.

The cheapest day to depart on your flight to Lisbon is on a Tuesday when prices can be found for as low as £222. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Lisbon for around £245.

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 £210. Flying to Lisbon in the evening is an ideal time because this is during off-peak travel hours. Flights to Lisbon are more costly at midday, with an average ticket price of £275. Departure times at midday 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 £205 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 £190 on momondo.

There are 3 cabin classes available to choose from on London Heathrow Airport to Lisbon 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 10% on your flight if you consider stops on a London Heathrow Airport to Lisbon flight.

As of October 2026, prices for London Heathrow Airport to Lisbon flights are approximately 22% more expensive when compared to flights at the same time last year.

Vueling 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 23% 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 106 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 19% of their flights experiencing any sort of delay.

The number of flights available between London Heathrow Airport and Lisbon is 43 per day as of October 2026. The most frequent departure time is 12:00, with 35% of daily flights leaving in the afternoon.

As of October 2026, 307 flights take off from London Heathrow Airport and land in Lisbon each week. The most common flight departure day for this route is Thu, with 26% of weekly flights taking off on this day.