How to Request Compensation for Flight Delays
What you need to do to request delay compensation
To request compensation for a flight delay, you file a claim directly with the airline or through a third-party claim service. The airline must receive your claim in writing — email, certified mail, or through their website form. You will need your booking confirmation, boarding pass, proof of the delay (your airline receipt or flight record), and documentation of any expenses you paid out of pocket if you are claiming those costs.
The timeline matters: most airlines have a window of one to three years from the delay date to submit a claim, though this varies by airline and the country where you boarded. File as soon as you have your documentation together. Airlines often reject claims that arrive after their stated deadline, even if the law technically allows a longer window.
Do not assume the airline will contact you. You must initiate the claim yourself. The airline will not automatically know you want compensation unless you tell them in writing.
Key Takeaways
- You must submit your claim in writing to the airline or a third-party service within the airline's stated deadline, which is usually one to three years from the delay date.
- Gather your booking confirmation, boarding pass, and proof of the delay before you file, because the airline will ask for these documents.
- Airlines often deny claims submitted after their internal deadline even if the law allows more time, so file early.
- If the airline denies your claim, you can escalate to your country's aviation authority or file in small claims court, depending on where you flew.
How to file a claim directly with the airline
Start by finding the airline's customer relations or claims department. Most airlines list this on their website under "Contact Us" or "Customer Service." Look for a link labeled "file a complaint," "submit a claim," or "customer relations." Some airlines have an online form you can fill out; others require you to email or mail your claim.
Write a clear, factual email or letter. Include your name, booking reference number, flight number, scheduled departure time, actual departure time, and the date of the flight. State how long the delay was in hours. Attach scans of your boarding pass and booking confirmation. If you paid for meals, hotels, or other expenses because of the delay, include receipts and explain why you incurred each cost.
Send the claim to the address or email the airline provides. Keep a copy for yourself and note the date you sent it. If you mail it, use certified mail so you have proof of delivery. The airline will typically respond within four to eight weeks, though some take longer.
Using a third-party claim service
Third-party services handle the claim process on your behalf. They contact the airline, gather documentation, and negotiate or litigate if the airline refuses to pay. In exchange, they take a percentage of any compensation you receive — usually 20 to 30 percent. You pay nothing upfront.
These services are useful if you do not want to manage the claim yourself or if the airline has already denied your claim once. They have experience with airline denial tactics and know which airlines are more likely to settle. However, they move slowly — the process often takes six months to two years.
Research any service before you sign up. Check whether they are registered with your country's aviation authority and whether they have public reviews or complaints filed against them. Some services make promises they cannot keep or charge hidden fees. Ask them in writing what percentage they take and what happens if the airline denies the claim.
What happens if the airline denies your claim
If the airline rejects your claim in writing, you have options. First, check whether their reason for denial is accurate. Airlines often deny claims incorrectly — for example, claiming the delay was under three hours when it was actually longer, or saying the flight was cancelled rather than delayed. If their reason is wrong, send a second claim with corrected information and ask them to reconsider.
If the airline's denial is correct under the law (for instance, the delay was under three hours, or the flight was cancelled due to severe weather), you cannot force them to pay. However, if you believe the airline is wrong about the facts or the law, you can file a complaint with your country's aviation authority. In the United States, that is the Department of Transportation. In Europe, it is the national aviation authority of the country where you boarded.
You can also file a claim in small claims court in the location where you live or where the airline is based. Small claims courts handle disputes up to a certain dollar amount — usually $5,000 to $10,000 depending on your state or country. You do not need a lawyer, and the filing fee is typically $50 to $200. The airline may not show up, in which case you win by default.
Documents you must have before you file
Gather these items before you contact the airline. The airline will ask for them, and you cannot file a complete claim without them.
| Document | Why you need it |
|---|---|
| Booking confirmation | Proves you had a reservation and shows the scheduled departure time |
| Boarding pass | Proves you checked in and shows your flight number and date |
| Proof of actual departure time | Your airline receipt, flight tracker screenshot, or email from the airline showing when the flight actually left |
| Receipts for expenses | Hotel, meal, or transportation costs you paid because of the delay — only if you are claiming these costs |
| Airline denial letter (if applicable) | If the airline already rejected your claim, include their written reason so you can address it |
If you cannot find your boarding pass, contact the airline and ask them to send you a copy. They have a record of every passenger on every flight. If you do not have a booking confirmation, check your email for the original confirmation the airline sent you when you booked, or log into your airline account and download it from there.
Timeline: how long compensation takes
If you file directly with the airline, expect a response in four to eight weeks. Some airlines take up to 12 weeks. If they approve your claim, they will send payment by check, credit card refund, or airline credit within two to four weeks after approval.
If you use a third-party service, the timeline is longer. These services typically take two to four weeks to gather your documents and submit the claim. Then you wait for the airline's response, which takes another four to eight weeks. If the airline denies the claim, the service may negotiate or file in court, which can add six months to a year.
If you file a complaint with your country's aviation authority, they will investigate but will not pay you directly. They may fine the airline or order them to pay, but enforcement is slow. This route is useful if you want to hold the airline accountable but are not in a hurry to receive money.
Common reasons airlines deny delay compensation claims
Airlines deny claims for specific reasons. Understanding these reasons helps you file a stronger claim the first time.
The delay was under three hours. In the United States, airlines are not required to pay compensation for delays under three hours. In Europe, the threshold is also three hours for flights under 1,500 kilometers. If your delay was shorter, the airline can legally refuse to pay. However, they may still reimburse you for meals or hotel costs if you incurred them.
The flight was cancelled, not delayed. Cancellations and delays have different rules. In the United States, airlines are not required to pay compensation for cancellations caused by weather, mechanical issues, or other circumstances beyond their control. In Europe, the rules are stricter — airlines must pay even for weather-related cancellations unless they can prove extraordinary circumstances. Check the rules for where you flew.
The airline claims extraordinary circumstances. Airlines often argue that weather, air traffic control delays, or security issues were beyond their control and therefore they do not owe compensation. In Europe, this argument is limited — airlines must still pay unless the circumstances were truly extraordinary. In the United States, this argument is broader and often succeeds. If the airline makes this claim, ask them to provide documentation of the weather or other circumstance.
You did not file within their deadline. Most airlines state a deadline for claims — often one to three years from the delay date. If you file after that deadline, they will deny your claim even if the law allows more time. Always file as soon as you have your documents.
Frequently Asked Questions
Can I claim compensation if the airline gave me a voucher or refund?
A voucher or refund for the ticket price is separate from delay compensation. You can claim both. The refund covers the cost of your ticket; compensation covers your losses from the delay itself. If the airline already refunded your ticket, mention this in your claim but still request compensation for the delay.
What if I booked through a travel website, not directly with the airline?
File your claim with the airline, not the travel website. The airline is responsible for the delay and the compensation. The travel website is only the booking agent. The airline will have your reservation in their system and can process your claim.
Do I have to accept a settlement offer from the airline?
No. If the airline offers you less than you believe you are owed, you can reject the offer and pursue the claim further through your country's aviation authority or small claims court. However, once you accept a settlement, you usually cannot claim again for the same delay. Read any settlement agreement carefully before you sign.
Can I claim compensation for a connecting flight that was delayed?
Yes, if the delay on the connecting flight was the airline's responsibility. If you missed your connection because the first flight was late, you can claim compensation for the delay on the first flight. If the second flight was delayed due to its own mechanical issue or weather, you can claim for that delay separately. Each flight is treated as its own claim.
What if the airline says the delay was my fault?
Airlines sometimes claim that delays were caused by passenger issues — for example, a passenger refusing to board or a medical emergency. If the airline makes this claim, ask them for documentation. In most cases, passenger-caused delays do not relieve the airline of their compensation obligation. Push back on this reason and ask them to explain in detail.