Cheap flights from London Heathrow Airport to Rome from $129

In general, January is the cheapest month to fly from London Heathrow Airport to Rome. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $278. If you aren’t able to travel during the month of January, then book flights to Rome from London Heathrow Airport during November instead. Flights to Rome in November, while not as cheap as those in January, still average around $287.

The cheapest day to depart from London Heathrow Airport to Rome is on a Thursday. Travellers who choose to depart for Rome on a Thursday will often find tickets for as low as $149. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Rome for around $404.

Flying to Rome from London Heathrow Airport at midday is the least expensive time of day to depart. momondo users have found prices as low as $163 when looking at flights departing at midday. Flights to Rome are more costly in the morning, with an average ticket price of $295. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Rome from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Rome for around $388 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Rome from London Heathrow Airport for as low as $324 on momondo.

There are 2 cabin classes available to choose from on London Heathrow to Rome flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 14% of flights between London and Rome have experienced a delay on any given week. The average delay length over the past 12 months has been 116 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. Sunday 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 14% of their flights experiencing any sort of delay.

The number of flights available between London Heathrow Airport and Rome is 8 per day as of February 2026. The most frequent departure time is 07:00, with 46% of daily flights leaving at midday.

As of February 2026, 61 flights take off from London Heathrow Airport and land in Rome each week. The most common flight departure day for this route is Sat, with 38% of weekly flights taking off on this day.