The total length of the journey must be calculated when claiming missed flight connection compensation, not the leg of the journey that you missed. Thus, any legs of your connecting flights that came before missed connections may be included into the journey length if all the flights were bought in the same booking. To sum up, the airline is responsible for all its flights even if they were before a flight disruption when the airline causes a missed connection. The airline is also responsible for any other airline flights that were affected later. Check your missed connection compensation amount with our free flight compensation calculator.