Cheap flights from Rome Fiumicino Airport to London from $74

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Rome Fiumicino Airport, with most prices found around $179. If you’re not able to fly to London Heathrow Airport in February, then January is your next best option. Flight prices from Rome Fiumicino Airport to London Heathrow Airport during January average around $191.

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $378. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $725.

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Rome Fiumicino Airport to London Heathrow Airport in the afternoon for as low as $349. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $709.

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 $247 when searching weeks out. 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 $200 on momondo.

There are 4 cabin classes available to choose from on Rome Fiumicino to London Heathrow 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 18% on your flight if you consider stops on a Rome Fiumicino Airport to London Heathrow Airport flight.

As of March 2026, prices for Rome Fiumicino Airport to London Heathrow Airport flights are approximately 120% 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 113 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the least number of 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 4 per day as of March 2026. The most frequent departure time is 12:00PM, with 77% of daily flights leaving in the afternoon.

As of March 2026, 30 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 Fri, with 53% of weekly flights taking off on this day.