What are the cheapest airports to fly from in Europe?

Competition also dictates that fares are lowest on major routes with plenty of air traffic.

According to Hipmunk for example, a one-way flight from London to Palermo in Sicily on November 30 costs as little as $101.

On the same day, a flight from London to Brindisi, deep in southern Italy, and with far less air traffic, starts at $478.

Discount carriers are attracted to operate on these major routes, which also helps keep the lid on prices that the majors can charge.

What can skew this picture is when a discount carrier chooses to operate from a regional airport.

For example, several carriers now operate out of San Francesco d'Assisi Airport in Italy's Perugia, and a flight from there to London on November 30 can cost as little $64 with Ryanair.

However, this is an exceptional circumstance.

The next cheapest fare on the same route is $849.

This suggests that Ryanair's seats will fill quickly and once that happens, travellers will be left with the choice of a very expensive flight to London, or a train ride to Rome and a saving of around $650 on the airfare. 

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