Cheap flights from Lisbon to London from $73

The month of January is, on average, the cheapest month to fly to London Heathrow Airport from Lisbon, with most prices found around $189. If you’re not able to fly to London Heathrow Airport in January, then February is your next best option. Flight prices from Lisbon to London Heathrow Airport during February average around $195.

Our data shows that Friday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $364. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $697.

According to our data, the cheapest time of day to fly to London Heathrow Airport is at noon. momondo users have found flights departing from Lisbon to London Heathrow Airport at noon for as low as $274. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $659.

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

You are more likely to see cheaper flights to London Heathrow Airport from Lisbon when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $250 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Lisbon for as low as $186 on momondo.

You could potentially save up to 10% on your flight if you consider stops on a Lisbon to London Heathrow Airport flight.

As of May 2026, prices for Lisbon to London Heathrow Airport flights are approximately 46% more expensive when compared to flights at the same time last year.

Historically, on average around 26% of flights between Lisbon and London 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 in the early afternoon have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the least number of delays on this route over the last 12 months; with about 22% of their flights experiencing any sort of delay.

The number of flights available between Lisbon and London Heathrow Airport is 48 per day as of May 2026. The most frequent departure time is 4:00PM, with 37% of daily flights leaving in the afternoon.

The number of flights available between Lisbon and London Heathrow Airport is 342 per week as of May 2026. The most frequent departure day is Wed, with 23% of weekly flights leaving on this day.