Regulation by jurisdiction
Each country has an aviation authority that sets the minimum protections passengers are entitled to. The US Department of Transportation (DOT), the European Union's EC 261/2004, the United Kingdom's UK261, and Canada's Air Passenger Protection Regulations (APPR) all impose different obligations. An airline based in one jurisdiction will typically apply that jurisdiction's rules globally as its baseline, then adjust per route.
Where a flight touches multiple jurisdictions, the most protective rule usually applies — but only if you ask for it. Airlines rarely volunteer the more generous regime when the less generous one would resolve the case faster.
Competitive market pressure
On routes with intense competition, airlines often go beyond the legal minimum to win loyalty: more flexible cancellation, free same-day standby, generous baggage allowances. On monopoly routes, the same airline may offer only the bare regulatory minimum because there's nowhere else for the passenger to go.
Legacy contracts and labor agreements
Each airline's contract of carriage — the legal document binding it to the passenger — has been shaped over decades of court cases, settlements, and negotiations with employee unions. Two airlines may face the same incident and produce different outcomes simply because of language locked into those documents years earlier.
Key takeaways
- Always check which regulator covers your route before deciding what you're owed.
- Competition increases generosity; monopoly routes pay the minimum.
- Read the airline's contract of carriage — it's the document that ultimately governs your case.