Cheap flights from London to Porto from €36

The cheapest month to fly to Porto from London is in January. Flight prices, which tend to average around €105, are often lower during this time because this is during the off-season. If you are unable to visit Porto during the month of January, then departing from London during the month November is also very affordable. Most momondo users find prices during this month for around €117.

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

You are more likely to see cheaper flights to Porto from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around €248 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from London for as low as €190 on momondo.

There is only 1 cabin class available to choose from on London to Porto 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 London to Porto.

As of March 2026, prices for London to Porto flights are approximately 9% cheaper when compared to flights at the same time last year.

Historically, on average around 22% of flights between London and Porto have experienced a delay on any given week. The average delay length over the past 12 months has been 113 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening 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 20% of their flights experiencing any sort of delay.

As of March 2026, 2 flights take off from London and land in Porto each day. The most common flight departure time for this route is 10:00, with 52% of daily flights taking off at midday.

The number of flights available between London and Porto is 19 per week as of March 2026. The most frequent departure day is Fri, with 42% of weekly flights leaving on this day.