Miss one flight, lose the rest. 17 airlines

Air Canada's tariff bans using a return fare one way or skipping flights to get a cheaper price, and lets it cancel the rest of the ticket if you do. Air Canada: International Tariff, general rules (PDF), checked 2026-10-24

Miss a flight or don't use your onward or return booking and Air New Zealand cancels it without refund, and may cancel other flights on the ticket too. Air New Zealand: Conditions of Carriage, checked 2026-10-24

Miss a flight or fly them out of order and ANA cancels every later flight on the itinerary; on a non-refundable fare you get nothing back. ANA: Reserving and purchasing international flights on the ANA Australia website, checked 2026-10-22

Flights must be flown in ticket order from the first, and not turning up costs a USD160 (about A$228) economy no-show fee, or USD500 if you check in and then don't board. Asiana Airlines: Reservation guide, change and refund (Australia site), checked 2026-10-23

If you miss a flight without telling Cathay beforehand, it may cancel your onward and return flights. Cathay Pacific: General Conditions of Carriage for passengers and baggage (PDF), checked 2026-10-24

Miss any flight without telling Delta first and it may cancel all your remaining flights, with no value left on the ticket. Delta: Contract of Carriage, International, checked 2026-10-24

Finnair's booking conditions say flights must be used in order, and if you don't use one, all remaining flights on the ticket are cancelled automatically. Finnair: Conditions for bookings (Australia), checked 2026-10-24

Skip a flight or fly them out of order and Lufthansa recalculates the fare for the route you actually flew, collects any difference, and can refuse carriage until you pay it. Lufthansa: General Conditions of Carriage for Passengers and Baggage (29 Oct 2025), checked 2026-10-24

PAL only honours flights in the order on the ticket: skip one and the ticket can lose its validity, or PAL recalculates the fare and you pay the difference. Philippine Airlines: General Conditions of Carriage (Australia site), checked 2026-10-24

Once you've started travelling, skip a flight on your ticket and Qantas can refuse you on the later ones unless you pay to reprice the ticket at the full unrestricted fare. Qantas: Conditions of Carriage, checked 2026-10-24

Miss a Qatar Airways flight without telling the airline first and your onward and return flights on the ticket are cancelled. Qatar Airways: Conditions of Carriage, checked 2026-10-24

If you don't use a flight on your ticket and haven't told Singapore Airlines beforehand, it can cancel every later flight on the ticket, including the way home. Singapore Airlines: Conditions of carriage (Australia), checked 2026-10-24

Miss a flight without telling Thai Airways and the rest of your booking, including the flight home, is cancelled. Thai Airways: Reservation & Ticketing Terms and Conditions (Australia), checked 2026-10-24

Turkish accepts flight coupons only in order, so if you skip the first flight of an international ticket it may not honour the rest. Turkish Airlines: Conditions of Online Channels, checked 2026-10-24

Flights must be used in the order on the ticket; skip one and the ticket loses its validity, including the later flights. Vietnam Airlines: Conditions of Carriage (PDF, linked from the Australia site), checked 2026-10-24

Skip or miss a flight without telling Virgin Atlantic and it may cancel the rest of your ticket, including the flight home. Virgin Atlantic: Conditions of carriage, Article 6 (reservations and tickets), checked 2026-10-24

If you don't take a flight, Virgin can charge a service fee and cancel your onward or return flights on the booking. Virgin Australia: Conditions of Carriage, checked 2026-10-24