Cheap flights from London to Lisbon from €45

In general, January is the cheapest month to fly from London to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €104. If you don’t want to visit Lisbon in January, then you should wait until November to fly from London, when ticket prices are also cheap, with an average price of €121.

The cheapest day to depart from London to Lisbon is on a Sunday. Travellers who choose to depart for Lisbon on a Sunday will often find tickets for as low as €195. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Lisbon on Thursday is €1,042.

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

You are more likely to see cheaper flights to Lisbon from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around €237 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 for as low as €207 on momondo.

There are 2 cabin classes available to choose from on London 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.

As of March 2026, prices for London to Lisbon flights are approximately 6% cheaper when compared to flights at the same time last year.

Historically, on average around 27% 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 111 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon 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. Saturday 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 22% of their flights experiencing any sort of delay.

The number of flights available between London and Lisbon is 62 per day as of March 2026. The most frequent departure time is 18:00, with 37% of daily flights leaving at midday.

As of March 2026, there are 434 flights per week flying from London to Lisbon. The most common day of the week flights depart is Fri, with 21% of flights taking off on this day.