Cheap flights from Rome Fiumicino Airport to London from £42

In general, February is the cheapest month to fly from Rome Fiumicino Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £132. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Rome Fiumicino Airport averaging around £143.

On average, the least expensive day to fly to London Heathrow Airport from Rome Fiumicino Airport is on a Saturday. momondo users have found tickets for Saturday departures for as low as £147. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £387.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Rome Fiumicino Airport to London Heathrow Airport in the evening for as low as £172. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £234 on average. Flights to London Heathrow Airport from Rome Fiumicino Airport at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Rome Fiumicino to London Heathrow for the best Rome Fiumicino - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from Rome Fiumicino Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £177 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Rome Fiumicino Airport for as low as £158 on momondo.

There are 3 cabin classes available to choose from on Rome Fiumicino Airport to London Heathrow Airport 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 7% on your flight if you consider stops on a Rome Fiumicino Airport to London Heathrow Airport flight.

As of September 2026, prices for Rome Fiumicino Airport to London Heathrow Airport flights are approximately 14% more expensive when compared to flights at the same time last year.

Historically, on average around 15% of flights between Rome and London have experienced a delay on any given week. The average delay length over the past 12 months has been 112 minutes.

Generally, flights departing in the morning 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. Friday 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 15% of their flights experiencing any sort of delay.

The number of flights available between Rome Fiumicino Airport and London Heathrow Airport is 15 per day as of September 2026. The most frequent departure time is 13:00, with 58% of daily flights leaving in the afternoon.

As of September 2026, 107 flights take off from Rome Fiumicino Airport and land in London Heathrow Airport each week. The most common flight departure day for this route is Sat, with 33% of weekly flights taking off on this day.