It s fairly easy to travel between most European countries, and you typically have a few options for transportation: plane, train, or bus.
GoEuro s Transport Price Index shows you the average price of each mode of transportation for 40 countries in Europe.
GoEuro is a booking site for transportation in Europe, and in their recent index, they analyzed prices for millions of tickets sold on their website in the past year.
They compiled their findings on an interactive chart that compares the average price per 100 kilometers for each mode of transportation, depending on the country.
As Travel Leisure points out, there were three countries where flying was actually cheaper than taking a train—Switzerland $33 vs. $42 , France $17 vs. $20 , and Spain $13 vs. $15 .
In Portugal, the average cost of a flight per 100 kilometers was the same as the average for taking a train—nine bucks.