Cheap flights from Rome Fiumicino Airport to Lisbon from £41

In general, June is the cheapest month to fly from Rome Fiumicino Airport to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £104. If you are unable to visit Lisbon during the month of June, then departing from Rome Fiumicino Airport during the month October is also very affordable. Most momondo users find prices during this month for around £107.

The cheapest day to depart on your flight to Lisbon is on a Saturday when prices can be found for as low as £161. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Rome Fiumicino Airport to Lisbon for around £647.

In the afternoon is the cheapest time of day to fly from Rome Fiumicino Airport to Lisbon when you can find flight prices for as low as £152. Flying to Lisbon in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Lisbon are more costly at midday, with an average ticket price of £401. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Rome Fiumicino to Lisbon Humberto Delgado for the best Rome Fiumicino - Lisbon Humberto Delgado flight prices

You are more likely to see cheaper flights to Lisbon from Rome Fiumicino Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around £139 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Rome Fiumicino Airport for as low as £90 on momondo.

There are 2 cabin classes available to choose from on Rome Fiumicino to Lisbon Humberto Delgado 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 35% of flights between Rome and Lisbon have experienced a delay on any given week. The average delay length over the past 12 months has been 112 minutes.

Generally, flights departing at night 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. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Ryanair have had the fewest delays on this route over the last 12 months, with about 24% of their flights experiencing any sort of delay.

The number of flights available between Rome Fiumicino Airport and Lisbon is 12 per day as of March 2026. The most frequent departure time is 19:00, with 43% of daily flights leaving in the afternoon.

As of March 2026, 87 flights take off from Rome Fiumicino Airport and land in Lisbon each week. The most common flight departure day for this route is Sat, with 29% of weekly flights taking off on this day.