Route
LGW - FCO is the first comparison, but nearby UK departure airports can shift the total.

Europe
Rome, Milan, Venice, and Naples work well as open-jaw trips when the first hotel night is planned around arrival.
Planning board
LGW - FCO is the first comparison, but nearby UK departure airports can shift the total.
Historic-centre rooms and rail-station access
Flexible returns help multi-city trips
Nearby country boards
Paris, Nice, Lyon, and ski-season add-ons work best when airport-to-centre timing stays visible.
Barcelona, Madrid, Malaga, and the islands suit short UK breaks when transfer time and baggage rules are compared early.
Lisbon, Porto, and Algarve breaks need hotel-area and airport-transfer checks before the cheapest fare wins.
Greece trips work best when Athens timing, island transfers, and hotel check-in windows are planned together.