Which rules apply to your Etihad Airways claim: EU261, UK261 or Montreal Convention?

Start with what went wrong

Fixed compensation, baggage liability, and proven-damages claims are three separate questions with three separate rulebooks. A single disrupted trip can touch more than one at once — a cancelled flight that also loses your bag involves both EU261/UK261 and the Montreal Convention, assessed and claimed separately.

If the problem is a delay, cancellation or denied boarding: EU261 or UK261

These two regulations share the same basic structure — a distance-based fixed payment, a right to refund or rerouting, and care during a long wait — but they are triggered by different departure countries and pay in different currencies. The test is simple: did the flight depart an EU, EEA or Swiss airport (EU261), or a UK airport (UK261)? A departure from Abu Dhabi or another non-European point on an Etihad-operated flight generally triggers neither, as the Abu Dhabi to Europe guide explains in full.

Once you know which of the two applies, the EU departures guide and the UK departures guide cover the specifics of each.

If the problem is your baggage: Montreal Convention

Lost, delayed or damaged checked baggage runs on an entirely different international treaty, applying regardless of which direction you were flying or whether EU261 or UK261 applies to the flight itself. The Montreal Convention sets its own liability limits, expressed in special drawing rights rather than euros or pounds, and its own short reporting windows — typically around seven days to report damage in writing and about twenty-one days for a delayed-bag claim, measured from when the bag was finally handed over or should have arrived.

This framework applies on every Etihad route, including standalone Abu Dhabi departures that fall outside EU261 and UK261 entirely for the flight-disruption question.

If you have genuine financial losses beyond the fixed payment: also Montreal Convention

EU261 and UK261 fixed compensation is deliberately simple and does not require you to prove an exact financial loss. Separately, the Montreal Convention allows a claim for actual, provable damages caused by a delay — a missed non-refundable connection on another airline, for example — subject to its own liability cap and a requirement to show the loss actually occurred and its size. This is a different, harder-to-prove claim than the fixed EU261/UK261 payment, and the two can in principle both apply to the same disrupted journey without double-counting the same loss twice.

Putting it together: a short worked scenario

A passenger flying Frankfurt–Abu Dhabi–Bangkok on Etihad experiences a five-hour delay on a single continuous booking, and their checked bag arrives four days after they do. Two separate claims exist here: an EU261 claim for the delay, since the journey began in Frankfurt, assessed by the total delay to the Bangkok arrival; and a Montreal Convention claim for the delayed bag, reported through Etihad's baggage service and pursued on its own timeline and its own liability limit. Neither claim reduces or replaces the other.

Why this distinction matters more than it first appears

Passengers sometimes assume that "compensation" is one single pot of money to negotiate over, and pursue it as a single, vague request. Airlines process claims far more efficiently, and are considerably harder to stall, when each specific right is identified by its correct legal basis from the outset. A claim that says "I want compensation for my terrible trip" invites a slow, generic response. A claim that specifies EU261 fixed compensation for a five-hour delay, plus a separate Montreal Convention claim for a bag that arrived four days late, gives the airline's claims team exactly what it needs to process both requests correctly and quickly.

Checking your own situation before writing anything

Before drafting a claim, work through the questions above in order: what actually went wrong, where did the journey depart from, and did anything happen to your baggage. Answering these three questions first, rather than starting to write a complaint and figuring out the legal basis afterward, consistently produces a clearer, faster-processed claim.

A note on timing across the three frameworks

Each framework runs on its own clock. Montreal Convention baggage claims have short reporting windows measured in days, while EU261 and UK261 claims typically allow considerably longer to file, though acting promptly is always safer than waiting. Missing the short baggage-reporting window does not affect your separate right to pursue fixed flight-disruption compensation, and vice versa — treat each deadline independently rather than assuming one governs the whole disrupted trip.

FAQ

Can EU261 and Montreal Convention both apply to the same trip?

Yes. They address different problems — flight disruption compensation versus baggage or proven-loss claims — and can both be pursued for the same journey without conflict.

Which framework applies if my flight was fine but my bag was lost?

The Montreal Convention, regardless of whether the flight itself would have qualified for EU261 or UK261.

Does UK261 apply on top of EU261, or instead of it?

Neither flight can be under both at once. UK261 governs UK departures; EU261 governs EU, EEA and Swiss departures. The departure airport decides which single regulation applies.

If my Abu Dhabi departure is not covered by EU261 or UK261, is my bag still protected?

Yes. The Montreal Convention applies to baggage on essentially every Etihad flight, independent of whether the flight-delay regulations apply to that specific route.

Do I need to choose only one framework to claim under?

No. Where more than one genuinely applies to different aspects of the same disruption, each is claimed on its own terms.

Sources

• Etihad Airways: Conditions of Carriage
• European Commission: air passenger rights
• UK Civil Aviation Authority: air passenger rights
• EUR-Lex: Regulation (EC) No 261/2004
• Montreal Convention 1999