If your flight arrived late, do not start by claiming €600. First identify the passenger-rights framework, calculate the delay at your final destination, and separate fixed compensation from expenses or a refund.

Under EU Regulation 261/2004, an eligible arrival delay of at least three hours may lead to fixed compensation of €250, €400, or €600. The route, operating carrier, and reason for the disruption still matter. An ordinary delay on a U.S.-only itinerary generally does not create an EU261-style right to cash. Flights involving the United Kingdom may instead fall under the separate UK261 system.

Before filing, record these four details:

• Departure airport and final destination.
• Operating carrier, not only the airline that sold the ticket.
• Whether the itinerary was one reservation or separate tickets.
• Scheduled and recorded arrival times at the final destination.

Start with the rule that applies

Your residence, nationality, and the website where you bought the ticket do not decide EU261 coverage. The departure airport, final destination, operating carrier, and booking structure are more important.

Read the official Regulation (EC) No 261/2004 text on EUR-Lex before quoting a right or amount. The Your Europe air-passenger-rights FAQ also covers delay and extraordinary-circumstance questions.

Mistakes that weaken a flight delay complaint

1. Assuming every delay qualifies for compensation

Under EU261, fixed delay compensation generally requires arrival at the final destination at least three hours late. The airline must also be unable to rely on extraordinary circumstances.

A delay of two hours and 55 minutes may be frustrating, but it generally will not meet the fixed-compensation threshold. A U.S. passenger flying from New York to Paris may have EU261 rights if the flight was operated by an eligible EU carrier. A U.S. passenger flying from Chicago to Los Angeles usually cannot claim €600 simply because the flight arrived late.

Treat "up to €600" as a maximum, not a promise. The amount depends on the applicable route band and the other legal conditions.

2. Measuring departure delay instead of arrival delay

The EU261 delay test is generally based on when you reach the final destination, not how late the aircraft left the first airport.

Compare the scheduled arrival with the recorded arrival at the final destination. Keep the date, local time, and time zone consistent, and do not round a borderline delay upward.

A flight that left four hours late but recovered time in the air may fall below the arrival threshold. A shorter departure delay can also become a longer final delay when a connection is missed.

3. Treating "weather" or "air traffic control" as a complete explanation

Severe weather, air traffic control restrictions, and some strikes outside the airline's control may qualify as extraordinary circumstances. The label alone does not establish that the entire delay resulted from that event.

Ask the airline to identify:

• The specific event and when it occurred.
• How it affected your flight.
• What reasonable measures the airline took to avoid or reduce the delay.
• Whether any later part of the delay resulted from a crew, aircraft, scheduling, or handling problem.

A routine technical problem or a failure to maintain an aircraft correctly is not automatically an extraordinary circumstance. A flight-tracking screenshot can help establish the timeline, but it usually will not prove the legal cause by itself. Combine it with airline notices, airport records, weather information, or other reliable evidence.

Even when an extraordinary circumstance removes fixed compensation, EU rules may still require assistance during a qualifying wait. That assistance can include meals and refreshments, or a hotel when an overnight stay becomes necessary.

4. Applying EU261, UK261, and U.S. rules interchangeably

EU261 and UK261 are separate laws, and neither is a general U.S. delay-compensation rule.

Do not copy an EU complaint template into a U.S. airline form or quote EU amounts for a UK claim. For a U.S.-only delay, start with the airline's contract of carriage and disruption policy. A carrier may offer meals, a hotel, a travel credit, or another remedy, but that offer is not the same as an automatic EU-style payment.

A cancellation or major schedule change may raise a separate refund question under U.S. rules. Do not treat that issue as though it were an ordinary delayed-flight compensation claim.

5. Treating a missed connection as a separate flight

For many EU261 connection claims, the relevant delay is measured at the final destination when the flights were booked as one reservation. If the first flight causes a missed connection and you reach the booked final destination at least three hours late, the whole itinerary may matter.

Separate tickets are different. Do not assume that the airline operating the first ticket is responsible for the second journey or for every resulting expense.

Save the complete itinerary, not just the boarding pass for the delayed sector. It should show whether the flights were sold as one booking and which carrier operated each leg.

6. Claiming the wrong amount

For an eligible EU261 delay, the basic fixed-compensation bands are:

These amounts apply only when the legal conditions are met. They are not based on the ticket price, your actual financial loss, or the number of hours spent waiting at the airport.

Some rerouting situations, particularly after a cancellation, can reduce compensation by 50% if the alternative flight arrives within specified limits. Check the regulation before demanding the highest amount.

UK261 has a separate pound-denominated schedule. Do not convert the EU table into pounds or assume that a UK claim uses the same route categories.

7. Confusing fixed compensation with a refund or expense reimbursement

These are different requests:

• Fixed compensation: A set amount for a qualifying delay under EU261 or UK261.
• Care expenses: Necessary, reasonable costs such as food or a hotel when the airline did not provide required assistance.
• Refund: Return of the fare when the applicable rule or airline policy allows you to stop travelling or reject an alternative.
• Goodwill credit: A voluntary offer from the airline, which may have restrictions or an expiration date.

Keep itemized receipts for meals, accommodation, and related transportation that the airline should have provided. Receipts usually support expense reimbursement, not the fixed compensation amount itself.

Do not add every loss from a disrupted trip to a fixed-compensation request. Missed tours, lost wages, and inconvenience may not be covered by the passenger-rights rule.

8. Accepting a voucher before deciding what you want

Under EU261, monetary compensation can generally be paid by methods such as cash, bank transfer, or cheque. A travel voucher or other service requires the passenger's agreement.

If you want money, do not click an acceptance button or sign a voucher agreement before checking its value, expiration date, restrictions, and effect on further claims. If you already accepted a voucher, review its terms before submitting a second request for the same compensation.

For U.S. flights, vouchers are usually governed by the airline's offer and terms. There is no universal €600 entitlement to replace them.

9. Sending incomplete or inconsistent documents

Airlines can investigate a flight from their own records, but a clear file makes it easier to identify the passenger, itinerary, and delay. Include:

• Booking confirmation showing the passenger name and reservation.
• Boarding passes or electronic travel documents.
• Flight number, operating carrier, date, and airports.
• Airline emails, text messages, app alerts, and airport delay notices.
• Evidence of scheduled and actual arrival times.
• Receipts for reasonable expenses not provided by the airline.
• Any written explanation or voucher offer already received.

Check that the name, booking reference, flight number, and date match across the documents. Submit them through the airline's official website or customer-relations address. Do not send unnecessary passport or payment information through an unverified channel.

Flight-tracking screenshots are stronger when they show the date, flight number, time, and time zone. They can support your timeline but may not establish why the delay occurred.

10. Filing against the wrong carrier or duplicating a claim

In a codeshare, the airline that sold the ticket may not be the airline that operated the aircraft. Check the operating carrier on your boarding pass, booking confirmation, or flight record before filing.

Submit one consistent claim for each affected passenger, or use a group claim if the airline provides one. Duplicate submissions can create conflicting information and make the case harder to track.

Do not claim the same compensation or expense from two airlines, insurers, or claim services. Keep a record of every submission and response.

11. Missing the applicable deadline

There is no single limitation period for every EU261 claim. The deadline may depend on the country whose law governs the claim and on whether you are making an airline complaint, using alternative dispute resolution, or starting court proceedings.

UK time limits can also depend on where in the United Kingdom a case is brought. A statement such as "you always have six years" can therefore be misleading.

File promptly, save a copy of the complaint, and record when the airline received it. An online complaint does not automatically pause a legal limitation period. Note any internal deadline in the airline's claim process, but do not confuse it with the legal deadline.

12. Using an angry or vague complaint letter

A threat-filled message can obscure the facts the airline needs to assess. Keep the complaint short, specific, and professional.

Include:

• Passenger name and booking reference.
• Flight number, date, route, and operating carrier.
• Scheduled and actual arrival times.
• The rule you believe applies.
• The amount requested and how you calculated it.
• A list of attachments.
• A request for the specific cause and supporting explanation if the airline relies on extraordinary circumstances.

Do not claim that the airline "owes €600" until you have checked the route band and eligibility. Do not describe a flight as weather-delayed if the airline has not said that or your evidence points elsewhere.

A practical filing process

Use this order when preparing the complaint:

1. Identify the jurisdiction. Check the departure airport, destination, operating carrier, and whether the itinerary was one reservation.
2. Calculate the arrival delay. Compare scheduled and recorded arrival at the final destination.
3. Check the stated cause. Ask whether the airline has identified a specific extraordinary circumstance and explained its effect on the flight.
4. Separate your requests. List fixed compensation, care expenses, refund, and any other remedy as separate items.
5. Gather evidence. Use clearly labeled attachments and include receipts only for expenses you are claiming.
6. Submit directly to the airline. Use its official delay or customer-relations form and save the confirmation number.
7. Respond to a rejection. Ask for the precise cause, the period it affected the flight, and the measures the airline took.
8. Escalate if needed. Choose the enforcement body, ADR scheme, consumer centre, or court route that fits the applicable jurisdiction.

For a qualifying EU261 claim, a concise letter could read:

Subject: Flight [number] on [date] - compensation request

I was booked on flight [number] from [departure airport] to [final destination] under reservation [reference]. The scheduled arrival was [time and date], and the recorded arrival was [time and date], a delay of approximately [duration].

I request compensation under Article 7 of Regulation (EC) No 261/2004 in the amount of €[amount]. I have attached my booking confirmation, boarding pass, arrival evidence, and receipts for separate care expenses.

If you rely on extraordinary circumstances, please identify the specific event, the period it affected the flight, and the reasonable measures taken to avoid or reduce the delay.

Adapt the wording for UK261. Do not use this template for a U.S.-only delay unless the airline's policy or another applicable U.S. rule supports the request.

What to do after an airline rejection

Ask for the response in writing. "Operational reasons" is too general to evaluate the claim. Request the specific event, the affected period, and the airline's explanation of how it reduced the delay.

For an EU or cross-border complaint, the relevant national enforcement body may investigate whether the airline followed passenger-rights rules. The Your Europe FAQ notes that a European Consumer Centre may help with a cross-border passenger dispute. An enforcement body may not always order payment of an individual claim, so check whether ADR or court action is also available.

For a UK claim, check the airline's final response for its ADR scheme and follow the route that applies to that carrier. For a U.S. claim, keep the airline case number and use the carrier's published complaint process. If the issue concerns a separate federal passenger protection, identify the government complaint route for that issue.

A paid claim service can handle correspondence, but it cannot create eligibility or guarantee a payout. Before authorizing one, check its fee, whether it takes a percentage of recovered money, and whether you can cancel the authorization.

Frequently asked questions

Do three hours of delay at departure qualify?

Not by themselves. For EU261 delay compensation, the key measurement is generally arrival at the final destination. A long departure delay that results in a smaller arrival delay may not qualify.

Can a U.S. citizen claim EU261 compensation?

Yes, if the flight fits EU261's geographic and carrier rules. Nationality is not the deciding factor. A U.S. citizen flying entirely within the United States generally cannot use EU261 for an ordinary delay.

Is bad weather always an extraordinary circumstance?

No. Severe weather may qualify, but the airline should connect the event to your delay and explain the measures it took. Ask for details instead of accepting a one-word rejection.

Do I need receipts to claim fixed EU261 compensation?

Receipts generally support care expenses such as food or accommodation. You still need evidence of the booking, flight, and arrival delay, but fixed compensation is not normally based on proving a separate financial loss.

Should I accept an airline voucher?

Only after checking its value and conditions. Under EU261, a voucher generally requires your agreement. If you prefer monetary compensation, do not accept the voucher before deciding whether its terms affect your claim.

What should I do if the airline ignores my complaint?

Save proof of submission and send one concise follow-up. If there is still no meaningful response, use the relevant enforcement body, ADR scheme, consumer centre, or U.S. complaint process. Check the applicable legal deadline before waiting further.