Cheap flights from London to Porto from $87

In general, January is the cheapest month to fly from London to Porto. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $242. If you aren’t able to travel to Porto during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $254.

Our data shows that Tuesday is the least expensive day to fly to Porto. Tickets to fly out on this day can be as low as $255. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London to Porto for around $524.

Our most recent data shows that the best time of day to fly to Porto is at midday. Flights from London to Porto during this time can be as low as $219. Flights in the evening are often more expensive, with an average ticket price of $484.

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 $398 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 $320 on momondo.

There are 3 cabin classes 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 June 2026, prices for London to Porto flights are approximately 0% more expensive 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 118 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. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, easyJet have had the fewest delays on this route over the last 12 months, with about 21% of their flights experiencing any sort of delay.

As of June 2026, there are 4 flights per day flying from London to Porto. The most common time of day flights depart is 12:00, with 44% of flights taking off in the afternoon.

As of June 2026, 29 flights take off from London and land in Porto each week. The most common flight departure day for this route is Tue, with 52% of weekly flights taking off on this day.