Automatic flight cancellations - Telegraph Josephine Spiegel, East Sussex, writes My sister needs to cancel the outbound leg of a return flight with easyJet. I have heard that by doing so you invalidate the return leg. Nick Trend, consumer expert, replies You are right to be concerned. Most airlines do cancel the return leg of a flight if the passenger does not show up for the outbound flight. It's standard industry practice, endorsed by IATA, that customers must take their journey in the sector sequence in which they buy their tickets - see iata.org/policy/documents/couponusepapereu.pdf. However, easyJet is not a member of IATA, and it assures me that it does not follow this policy, so your sister's return flight would be honoured.