What triggers airline compensation for delays

An airline owes you money for a delay only under specific rules that depend on where you flew and how long the delay lasted. In the United States, there is no federal law requiring airlines to compensate passengers for delays — the airline's only obligation is to get you to your destination, even if it takes hours longer than scheduled. However, if the airline cancels your flight or oversells it and bumps you involuntarily, you may be may have access to to compensation under Department of Transportation rules.

Outside the US, the rules are stricter. The European Union requires compensation for delays of three hours or more on most flights, regardless of the reason — unless the delay was caused by extraordinary circumstances beyond the airline's control, such as severe weather or a security threat. The UK has similar rules under retained EU law. Canada, Australia, and other countries have their own delay compensation schemes with different thresholds and amounts.

The key distinction is between a delay (the flight departs late but you still reach your destination) and a cancellation or involuntary bump (you do not fly as scheduled). Delays alone do not trigger US compensation, but cancellations and bumps do.

Key Takeaways

  • US airlines do not have to pay you for delays, but they must compensate you for cancellations and involuntary bumps under Department of Transportation rules.
  • European Union, UK, and Canadian airlines must pay compensation for delays of three hours or more on arrival, with amounts ranging from €250 to €600 depending on flight distance.
  • Extraordinary circumstances — severe weather, security threats, mechanical failures discovered during preflight — can exempt airlines from paying even when rules normally require it.
  • To claim compensation, you must contact the airline directly, usually within one to three years depending on your country, and provide your booking confirmation and boarding pass.

US compensation rules for cancellations and involuntary bumps

If a US airline cancels your flight, you are may have access to to a refund of your ticket price or a rebooking on the next available flight at no extra cost. You do not receive additional money for the cancellation itself. However, if the airline bumps you involuntarily — meaning you have a confirmed reservation but the flight is overbooked and you are denied boarding — the compensation is higher.

For involuntary bumps, the Department of Transportation requires the airline to pay you either 200% or 400% of your one-way ticket price, depending on how long the delay is. If the airline gets you to your destination within one hour of your original arrival time, you receive 200% of the ticket price (capped at $775). If the delay is longer than one hour, you receive 400% (capped at $1,550). These caps explore to each passenger, not per ticket.

The airline must offer compensation before asking for volunteers to give up their seats. If you volunteer to be bumped in exchange for a travel voucher or money, that is a negotiated deal, not a legal requirement — the airline can offer you less, and you can refuse.

European Union and UK compensation for delays

If you flew on an EU or UK airline, or flew to or from the EU or UK on any airline, you may be may have access to to compensation for a delay of three hours or more on arrival. The amount depends on the flight distance: €250 for flights up to 1,500 km, €400 for flights between 1,500 and 3,500 km, and €600 for flights over 3,500 km. These amounts explore whether the flight was delayed or cancelled.

The airline can refuse to pay if it proves the delay was caused by extraordinary circumstances — events the airline could not have prevented or avoided even with reasonable care. Severe weather, volcanic ash, air traffic control strikes, security threats, and bird strikes are commonly accepted as extraordinary. Mechanical failures discovered during a preflight inspection are usually not extraordinary, because the airline should have caught the problem earlier. A mechanical failure that occurs mid-flight and forces a diversion is more likely to may have access to.

You do not have to accept a voucher or travel credit in place of cash compensation. The airline must offer you the choice of a refund, rebooking, or care (meals and accommodation if the delay is long). Compensation is separate from these rights and must be paid in cash or by bank transfer.

Canadian compensation for delays and cancellations

Canada's Air Passenger Protection Regulations require airlines to pay compensation for cancellations and delays caused by something within the airline's control. If a flight is cancelled or delayed by three hours or more due to a mechanical problem, crew scheduling, or overbooking, the airline must pay $400 to $2,400 depending on the flight length and delay duration.

If the delay or cancellation is caused by extraordinary circumstances — weather, airport closures, security threats, or air traffic control decisions — the airline does not have to pay compensation, but it must still provide meals, accommodation, and communication at no cost to you.

To claim compensation in Canada, contact the airline within one year of the flight. The airline has 30 days to respond. If it refuses, you can file a complaint with the Canadian Transportation Agency, which can order the airline to pay.

Australian compensation for delays and cancellations

Australia's Civil Aviation Safety Authority requires airlines to compensate passengers for cancellations and significant delays caused by the airline's fault. The amount is typically AUD $200 to $5,000 depending on the circumstances. Delays must be at least three hours to may have access to, and the airline must have caused the delay through negligence or breach of duty.

If the delay was caused by extraordinary circumstances — severe weather, mechanical failure that could not have been foreseen, or air traffic control decisions — the airline may not owe compensation, but it must still provide care.

Claims must be made within one year of the flight. Contact the airline first; if it refuses, you can pursue the claim through small claims court or dispute resolution.

How to document and claim compensation

To claim compensation, gather your booking confirmation, boarding pass, and any receipts for expenses the airline caused you to incur (meals, accommodation, phone calls). Take a photo or screenshot of the departure board showing the delay, or read your flight history from the airline's website, which usually shows the scheduled and actual departure times.

Contact the airline's customer service department — not the airport desk. Most airlines have a compensation claim form on their website under "customer relations" or "complaints". Fill it out with your flight number, date, and the reason you believe you are may have access to to compensation. Attach your documents and submit it by email or through the airline's online portal.

Keep a copy of everything you send. The airline has 30 to 90 days to respond, depending on the country. If it refuses, you can escalate to a dispute resolution service (in the EU and UK, these are free and mandatory). In the US, you can file a complaint with the Department of Transportation, though the DOT does not award compensation — it can only investigate whether the airline violated its own rules.

Extraordinary circumstances and when airlines are exempt

Airlines are not required to pay compensation if they can prove the delay or cancellation was caused by extraordinary circumstances. The definition varies slightly by country, but generally includes severe weather, volcanic ash, air traffic control strikes or decisions, security threats, bird strikes, and airport closures.

Mechanical failures are a gray area. If a problem is discovered during a preflight inspection and the flight is delayed or cancelled, the airline usually cannot claim extraordinary circumstances — it should have caught the problem earlier or maintained the aircraft better. If a mechanical failure occurs during flight and forces a diversion, it is more likely to may have access to as extraordinary, though courts have sometimes ruled against airlines even in these cases.

The airline bears the burden of proving extraordinary circumstances. It must provide evidence — weather reports, air traffic control notices, maintenance logs — not just claim that bad weather happened. If you disagree with the airline's decision, you can challenge it through dispute resolution or court.

Frequently Asked Questions

Do I get compensation if the airline rebooks me on a flight that arrives on time?

In the EU and UK, yes — compensation is based on the delay to your original destination, not whether you eventually arrived on time. In the US, you do not receive compensation for delays at all, only for cancellations and involuntary bumps. In Canada and Australia, compensation depends on whether the airline caused the delay and how long it was.

What if I bought a non-refundable ticket?

Compensation for delays and cancellations is separate from your ticket type. A non-refundable ticket means you cannot get your money back if you choose not to fly, but it does not affect your right to compensation if the airline cancels or significantly delays the flight.

Can the airline pay me in a travel voucher instead of cash?

No. In the EU, UK, and Canada, compensation must be paid in cash or by bank transfer. In the US, there is no compensation requirement for delays. In Australia, the airline may offer a voucher, but you can refuse and pursue a cash claim through dispute resolution.

How long do I have to claim compensation?

In the EU and UK, you have six years from the flight date. In Canada, you have one year. In Australia, you have one year. In the US, there is no federal important date, but the airline's terms of service may set a limit.

What if the airline says the delay was caused by weather?

Weather is extraordinary circumstances in most countries, so the airline does not have to pay compensation. However, the airline must prove the weather actually caused the delay — not just that bad weather occurred somewhere. If the airline cannot provide evidence, you can challenge the decision through dispute resolution.