Montreal Convention 1999: Your Complete Guide to International Air Travel Rights

The Montreal Convention is the single most important international treaty governing airline liability for passengers and their baggage. Formally known as the Convention for the Unification of Certain Rules for International Carriage by Air, it was adopted on 28 May 1999 and entered into force on 4 November 2003. As of March 2026, 143 parties have ratified the Convention, covering virtually every major aviation market in the world.

If your luggage was lost, delayed, or damaged on an international flight — or if you suffered financial loss due to a flight delay — the Montreal Convention 1999 is likely the legal framework that governs your claim. This guide explains everything you need to know about Montreal Convention compensation: what it covers, how much you can claim, the strict time limits you must meet, and how it works alongside other regulations like EC 261/2004.

What is the Montreal Convention?

The Montreal Convention 1999 is a multilateral treaty that establishes uniform rules for international carriage by air covering passengers, baggage, and cargo. It replaced and modernized the Warsaw Convention of 1929, which had set liability limits so low they had become meaningless by the late twentieth century.

The Convention was created to provide a standardized framework for airline liability — necessary for the growth of the aviation industry, since unlimited liability had made insurers hesitant to cover airlines operating across multiple jurisdictions. Under the Convention, airlines must maintain adequate liability insurance to cover passenger claims as a condition of operating international routes between signatory states.

The Convention covers four main areas:

• Baggage liability. Airlines are liable for destruction, loss, damage, or delay of checked baggage during international flights. This is the most common application for ordinary passengers.
• Passenger delay. Airlines are liable for damages caused by delay in the carriage of passengers, unless they prove they took all reasonable measures to avoid the delay.
• Passenger injury and death. Airlines are strictly liable for proven damages up to a threshold amount when passengers are killed or injured in accidents on board or during boarding or disembarking.
• Cargo liability. Airlines are liable for damage to cargo during international air carriage.

How the Montreal Convention differs from EC 261

	Montreal Convention	EC 261/2004
What it covers	Actual financial losses (proven damages)	Fixed compensation for inconvenience
Baggage	Lost, delayed, damaged baggage	Not covered
Flight delays	Proven financial losses from delay	Fixed €250–€600 for 3+ hour delay
Cancellations	Proven financial losses	Fixed €250–€600 + refund/rebooking
Denied boarding	Not specifically covered	Fixed €250–€600 + immediate payment
Proof required	Must prove actual financial loss	No proof needed — fixed amounts
Geographic scope	International flights between 143 signatories	Europe only (EU + EEA + ECAA)

The two are not alternatives — they complement each other. On a qualifying European flight where your bag is also lost, you can claim EC 261 compensation for the flight disruption and Montreal Convention baggage compensation for the lost bag.

Montreal Convention compensation: how much can you claim?

The Convention sets liability limits in Special Drawing Rights (SDR), an artificial currency basket managed by the International Monetary Fund. SDR is not a traded currency — its value is recalculated daily based on a basket of major world currencies, so compensation amounts in euros or dollars will vary with the exchange rate at the time of settlement.

These limits were most recently revised on 28 December 2024 as part of the Convention's built-in five-year inflation adjustment.

Current limits (effective 28 December 2024)

Category	SDR limit	Approximate EUR	Approximate USD
Baggage (lost, delayed, damaged)	1,519 SDR per passenger	~€1,800	~$2,175
Passenger delay	6,303 SDR per passenger	~€7,500	~$8,400
Death or injury	151,880 SDR per passenger	~€180,000	~$200,000
Cargo	26 SDR per kilogram	~€31/kg	~$35/kg

Previous limits (before 28 December 2024)

Category	Previous SDR limit
Baggage	1,288 SDR
Passenger delay	5,346 SDR
Death or injury	128,821 SDR
Cargo	22 SDR/kg

These are maximum limits, not guaranteed payouts. A passenger whose delayed bag caused €200 in emergency purchases claims €200, not €1,800. The maximum amount is a ceiling, not a flat payment.

Special declaration of value

If you are traveling with high-value personal items, you can make a special declaration of value at check-in and pay a supplementary fee. This raises the airline's liability above the standard limit. Where declared value is not an option or doesn't fully cover your exposure, taking out additional insurance before travel is worth considering.

Montreal Convention baggage compensation: the rules

Baggage claims are by far the most common use of the Montreal Convention for ordinary passengers.

Montreal Convention lost baggage

Checked baggage is officially considered lost if it has not been returned within 21 days of the flight's arrival. Once declared lost, you can claim the current value of the bag and its contents after depreciation, up to the 1,519 SDR limit.

To support a lost baggage claim, you will need your flight documents — booking confirmation, boarding passes, and the baggage receipt attached to your boarding ticket at check-in — along with a detailed list of the bag's contents with estimated current value for each item.

Full details: Lost Luggage Compensation

Montreal Convention delayed baggage

If your bag is considered delayed — returned within 21 days — the airline must reimburse you for reasonable emergency purchases: toiletries, basic clothing, and essential personal items you needed because your bag wasn't there. Keep all receipts. Without documentation, the airline can dispute the amount. A missed business meeting or pre-paid activity caused by not having essential items can also form part of a proven financial loss claim.

Full details: Delayed Luggage Compensation

Damaged baggage

If your checked bag or its contents are damaged during the flight, the airline must pay for repair or replacement at current value. You must report the damage in writing within 7 days of receiving the bag and retain damaged luggage receipts for any repair or replacement costs.

Full details: Damaged Luggage Compensation

Items typically excluded from baggage liability

Airlines commonly exclude or limit liability for cash, jewellery, precious metals, important documents, fragile items, electronics, and perishable goods packed in checked baggage. Keep valuables and essential personal items in your carry-on.

Strict time limits under the Montreal Convention

Passengers must report damaged baggage within 7 days and delayed baggage within 21 days to maintain their right to compensation. Missing these deadlines means losing your claim entirely.

Situation	Deadline	Consequence
Damaged baggage — written complaint	7 calendar days from receiving the bag	Lose right to claim
Delayed baggage — written complaint	21 calendar days from receiving the bag	Lose right to claim
Lost baggage — officially considered lost	21 days without delivery	Can file full lost luggage claim
Court action (all claims)	2 years from flight arrival date	Claim is time-barred

Calendar days, not working days. Weekends and holidays count.

Written means written. Phone calls do not satisfy the notification requirement. Submit a new written claim through the airline's online claim form, by email, or by registered post.

The Property Irregularity Report at the airport is critical but not sufficient. Filing a PIR at baggage reclaim creates an official record, but it does not replace the written complaint required within the 7-day or 21-day windows. Both steps are required.

Montreal Convention and flight delays

Under Article 19, airlines are liable for damage caused by delay in the carriage of passengers, unless they prove they took all reasonable measures to avoid the delay.

Key differences from EC 261 delay claims: no fixed compensation amounts — you must prove actual financial losses. No 3-hour threshold — any delay can be claimed if you can demonstrate resulting financial damage. Maximum liability is 6,303 SDR per passenger. General inconvenience is not covered — only provable out-of-pocket losses.

In practice, most passengers on European flights are better served by EC 261 for delays, because it provides fixed amounts without proof. However, the Montreal Convention becomes valuable when your actual financial losses exceed the EC 261 fixed amounts, or when your flight is not covered by EC 261.

You can claim under both. On a qualifying European flight, you can receive EC 261 fixed compensation and claim additional proven damages under the Montreal Convention. The EC 261 amount may be deducted from Montreal Convention damages, but the two frameworks are complementary.

Which flights does the Montreal Convention apply to?

For the Montreal Convention to apply, both the departure and arrival countries must be signatories to the treaty. If one country is not a party to either the Montreal Convention or the Warsaw Convention, local laws will govern the claim rather than the Convention's standardized rules.

As of 2026, 143 parties have ratified the Convention. Covered countries include all 27 EU member states, all EEA members, Switzerland, the United States, Canada, the United Kingdom, Australia, Japan, China, Brazil, India, and the ECAA Western Balkan countries including Serbia, Bosnia and Herzegovina, Montenegro, North Macedonia, and Albania.

A contracting state stopover does not affect your coverage. If your international itinerary includes a connection through a signatory country, the Convention applies to the journey as a whole.

For non-contracting state flights, the older Warsaw Convention of 1929 may still apply, with significantly lower liability limits.

Domestic flights. The Montreal Convention applies to international flights only. For domestic travel, national law governs. Within the EU, EC 261 and EU Regulation 2027/97 effectively extend Montreal Convention-level protections to domestic flights.

Montreal Convention and passenger injury

Strict liability up to 151,880 SDR (approximately €180,000 or $200,000 depending on exchange rate). Airlines are automatically liable for bodily injury up to this amount without passengers needing to prove negligence. The airline cannot limit or exclude this liability.

Above 151,880 SDR, airlines can only avoid liability by proving the accident was not caused by their negligence or was solely caused by a third party.

The Convention does not cover purely psychiatric injury unless it is linked to physical injury. Compensation applies only to injuries caused by an accident on board the aircraft or during embarking or disembarking.

Fifth jurisdiction. The Convention allows passengers to bring compensation claims in the country of their principal residence, in addition to the four traditional jurisdictions: the carrier's domicile, principal place of business, place of ticket purchase, and destination.

How FlyPayout Handles Your Montreal Convention Claim

Montreal Convention claims involve bureaucratic processes, strict time limits, and airlines that systematically lowball offers. FlyPayout handles the entire claim for you.

1. Check your case. Enter your flight and baggage details into our free calculator. We assess your claim and tell you what you are entitled to under the Montreal Convention.
2. Submit your claim. If your case qualifies, FlyPayout handles everything — the documentation, the airline communication, and the case management.
3. Get paid. We negotiate with the airline on your behalf. If they refuse to pay fair compensation, our legal team takes the case forward. We only charge our fee when you receive your money.

Why Choose FlyPayout?

• Claim for baggage issues from the last 2 years — it's not too late.
• We cover international flights between all Montreal Convention signatory countries.
• No win, no fee — you never pay upfront.
• Expert legal team experienced in Montreal Convention and EC 261 claims.
• You submit the details, we handle the case from start to finish.

Frequently Asked Questions About the Montreal Convention

What is the Montreal Convention 1999?

The Montreal Convention 1999 is an international treaty governing airline liability for passengers, baggage, and cargo on international flights. It was adopted in 1999, entered into force in 2003, and has been ratified by 143 countries. It sets maximum liability limits for lost, delayed, or damaged baggage (1,519 SDR), passenger delays (6,303 SDR), and death or injury (151,880 SDR strict liability).

How much is Montreal Convention compensation for lost luggage?

The maximum compensation is 1,519 SDR (approximately €1,800) per passenger, revised on 28 December 2024. You receive your proven losses up to this cap — not an automatic flat payment. If you made a special declaration of value at check-in, the maximum amount can be higher.

What is the difference between lost baggage and delayed baggage claims?

Lost baggage claims apply when the bag has not been returned within 21 days — it is declared lost and you claim its current value. Delayed baggage claims cover the period while the bag is missing — you claim reasonable emergency purchases such as toiletries and essential clothing. The 1,519 SDR limit applies to both.

Does the Montreal Convention cover domestic flights?

No. The Convention applies to international flights between signatory countries only. For domestic travel, national law applies. Within the EU, domestic flights are effectively covered by equivalent protections through EU regulations.

Can I claim under both the Montreal Convention and EC 261?

Yes. EC 261 provides fixed compensation for inconvenience (€250–€600). The Montreal Convention covers proven financial losses. On a qualifying European flight with baggage problems, you can claim both. The EC 261 amount may be deducted from Montreal Convention damages, but you can receive compensation under both frameworks.

What is the deadline for a delayed baggage claim?

You must submit a written complaint to the airline within 21 calendar days of receiving your delayed bag. For damaged baggage, the deadline is 7 calendar days. For lost baggage, you have 2 years from the flight arrival date to bring a court action.

Does the Montreal Convention apply to flights from Serbia or the Western Balkans?

Yes. Serbia ratified the Montreal Convention in 2009. Bosnia and Herzegovina, Montenegro, North Macedonia, and Albania are also signatories. International flights from or to airports in these countries are fully covered.

Can the airline refuse to pay?

Airlines can limit or deny claims for pre-existing damage, improper packing, excluded items such as cash and jewellery in checked bags, or if the passenger missed the notification time limits. Airlines frequently deny valid claims hoping passengers will give up. FlyPayout challenges improper denials.

What documents do I need for a baggage claim?

You need your flight documents — booking confirmation, boarding passes, and baggage receipt — the Property Irregularity Report filed at the airport, receipts for any emergency purchases, and a list of the bag's contents with estimated current value. For damaged baggage, photographs and damaged luggage receipts for repair or replacement costs are essential.

The Montreal Convention protects you on every international flight. Know your rights.

Whether your bag was lost on a transatlantic flight, damaged on a European connection, or delayed on a trip across Asia, the Montreal Convention gives you clear, enforceable rights. Most passengers never claim what they are owed — because they don't know the rules, miss the time limits, or accept lowball airline offers. Don't be one of them.

Check your claim now — it takes less than 2 minutes, and it's completely free.

FlyPayout helps passengers claim compensation for lost luggage, delayed luggage, damaged luggage, flight delays, cancellations, denied boarding, overbooking, missed connections, and baggage claims. Our service is risk-free — you only pay when we succeed.