Cheap flights from London to Porto from $104

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 $202. If you aren’t able to travel to Porto during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $216.

Our data shows that Monday is the least expensive day to fly to Porto. Tickets to fly out on this day can be as low as $165. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from London to Porto for around $454.

Our most recent data shows that the best time of day to fly to Porto is in the afternoon. Flights from London to Porto during this time can be as low as $207. Flights in the evening are often more expensive, with an average ticket price of $488.

Fly from London Luton 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 $395 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 $322 on momondo.

There are 2 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.

You could potentially save up to 28% on your flight if you consider stops on a London to Porto flight.

As of July 2026, prices for London to Porto flights are approximately 18% cheaper when compared to flights at the same time last year.

Historically, on average around 23% 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 121 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, easyJet 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 July 2026, there are 5 flights per day flying from London to Porto. The most common time of day flights depart is 12:00, with 47% of flights taking off in the afternoon.

As of July 2026, 36 flights take off from London and land in Porto each week. The most common flight departure day for this route is Thu, with 44% of weekly flights taking off on this day.