Cheap flights from London Heathrow Airport to Lisbon from €77

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 €180. If you don’t want to visit Lisbon in January, then you should wait until February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of €180.

The cheapest day to depart from London Heathrow Airport to Lisbon is on a Sunday. Travellers who choose to depart for Lisbon on a Sunday will often find tickets for as low as €222. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Lisbon on Wednesday is €260.

According to our data, the cheapest time of day to fly to Lisbon is in the afternoon. momondo users have found flights departing from London Heathrow Airport to Lisbon in the afternoon for as low as €141. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are €260 on average. Flights to Lisbon from London Heathrow Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 €245 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 €227 on momondo.

There are 2 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.

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.

59 flights are operational daily from London Heathrow Airport to Lisbon as of November 2026. The most popular departure time for this route is 12:00, with 35% of flights per day taking off in the afternoon.

414 flights are operational weekly from London Heathrow Airport to Lisbon as of November 2026. The most popular departure day for this route is Fri, with 21% of flights per week taking off on this day.