Cheap flights from Porto to London from £35

The cheapest month to fly to London from Porto is in July. Flight prices, which tend to average around £18, are often lower during this time because this is during the off-season. The month of May is another great option to travel to London, with average flight prices from Porto averaging around £19.

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £106. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Porto to London for around £139.

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £113. Flights in the afternoon are often more expensive, with an average ticket price of £129.

Fly from Porto to London Stansted for the best Porto - London flight prices

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

No. A direct flight is the cheapest option for a flight between Porto to London.

easyJet, Ryanair, and Vueling are the most popular carriers operating from Porto to London

easyJet, TAP AIR PORTUGAL and Ryanair are the top three most popular airlines that fly to London from Porto according to our data. easyJet is the first choice among our users, with 31% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 20% of flights between Porto and London have experienced a delay on any given week. The average delay length over the past 12 months has been 119 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. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, TAP AIR PORTUGAL have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

As of April 2026, there are 7 flights per day flying from Porto to London. The most common time of day flights depart is 09:00, with 56% of flights taking off at midday.

51 flights are operational weekly from Porto to London as of April 2026. The most popular departure day for this route is Mon, with 31% of flights per week taking off on this day.