Madrid - Barcelona (504.64 air km or 313.5 air miles) in 2:30h, and often just 2:15h (they give a longer time due to a delay over 15min means they've to refund

Madrid - Barcelona (504.64 air km or 313.5 air miles) in 2:30h, and often just 2:15h (they give a longer time due to a delay over 15min means they've to refund 50% of the ticket.