How to File a Flight Compensation Claim: A Step-by-Step EU261, UK261, and APPR Guide
Filing a flight compensation claim is much easier when you stop thinking of it as a generic complaint and treat it like a short factual case file. The goal is simple: identify the correct legal regime, prove what happened, and ask the right airline for the right remedy.
Step 1: Identify the legal regime before you write
Do this first. Passenger-rights rules differ in important ways.
| Your situation | Start with | Why it matters |
|---|---|---|
| Flight departed the EU, or arrived in the EU on an EU airline | EU261 | Compensation often turns on arrival delay, cancellation timing, denied boarding, and extraordinary circumstances |
| Flight was covered by UK rules | UK261 | The structure is similar to EU261, but the coverage and enforcement routes are UK-specific |
| Flight was to, from, or within Canada | APPR | Rights depend heavily on whether the disruption was within the airline's control, whether safety was involved, and the size of the carrier |
If you are not sure which regime applies, read our EU261 overview and the broader passenger rights guide before sending the claim.
Step 2: Gather the core documents
At minimum, collect:
- Booking confirmation or e-ticket
- Boarding pass
- Flight number and travel date
- Delay or cancellation notices from the airline
- Receipts for meals, hotels, transport, or other necessary expenses
- Any screenshots showing the flight status and timing
If the disruption involved a connection, keep the full itinerary, not just the affected segment.
Step 3: Rebuild the timeline
Strong claims explain the sequence clearly.
Write down:
- The scheduled departure and arrival times
- The actual departure and arrival times, if the flight operated
- When the airline first notified you of a cancellation or major delay
- What reason the airline gave for the disruption
- Whether you accepted rerouting, a refund, or any voucher
This step matters because different rules focus on different facts. EU and UK delay claims often turn on final arrival time. Canada APPR claims often turn on cause classification and how late you arrived.
Step 4: Submit the claim to the operating airline
Compensation claims usually go to the operating carrier, meaning the airline that actually ran the flight, not necessarily the airline whose code was on your ticket.
Your written claim should include:
- Your full name and booking reference
- The affected flight number and date
- A short factual summary of what happened
- The rule you believe applies
- The compensation, reimbursement, refund, or rerouting issue you want resolved
- Copies of your supporting evidence
Keep the tone direct and factual. Long emotional complaints usually do not help.
Step 5: Separate fixed compensation from expense reimbursement
Passengers often combine everything into one vague request for "compensation." That can create confusion.
There are usually at least two separate questions:
- Are you owed fixed compensation under a passenger-rights regime?
- Are you owed reimbursement of reasonable expenses because the airline did not provide required care?
Spell both out if both apply. A better claim is more specific.
Step 6: Anticipate the airline's likely defenses
Many rejections are predictable. Check your case against the common arguments before the airline raises them.
"It was extraordinary circumstances"
Under EU261 and UK261, this is one of the most common airline defenses. Severe weather or air traffic restrictions can support it. Routine technical faults, ordinary staffing issues, or poor maintenance often do not.
"It was required for safety"
In Canada, the distinction between events within the airline's control, outside its control, or within its control but required for safety can determine whether compensation is available at all.
"You accepted a voucher"
Accepting assistance during the disruption is not the same as agreeing to settle the whole claim. But if you signed away cash rights in exchange for travel credit, that can complicate things.
"The booking platform is responsible"
For fixed compensation, the correct target is usually the operating airline, even if you booked through a travel agent or online platform.
"You missed check-in" or "the flights were on separate tickets"
These facts can weaken a case significantly, especially for missed connections.
Step 7: Escalate in the right forum if the airline rejects or stalls
If your first claim goes nowhere, escalation options vary by jurisdiction.
- In the EU or UK, you may need to use a national enforcement body, an ADR scheme, or the court system depending on the airline and country involved
- In Canada, unresolved disputes can move into the Canadian Transportation Agency complaint process
- Before filing in court, check whether the jurisdiction requires a particular pre-action step, mediation, or other formal process
Do not assume the same escalation route works in every country.
Step 8: Decide whether to self-file or use a representative
A straightforward case can often be handled directly with the airline. A more complicated case may justify help if:
- The airline disputes the cause of the disruption
- The route crosses multiple jurisdictions
- You are dealing with denied boarding or a missed connection on a more complex itinerary
- The airline is ignoring a well-documented claim
If you do not want to manage the process yourself, airfairness can review the flight and handle the claim for you.
Claim checklist before you press send
- Correct operating airline
- Correct rule identified
- Flight number, date, and booking reference included
- Actual arrival delay or cancellation notice timing stated clearly
- Reason for disruption noted as accurately as possible
- Receipts and screenshots attached
- Request separated into compensation, expenses, refund, or rerouting issues
FAQ about filing a flight compensation claim
Should I claim against the airline or the booking site?
For fixed passenger-rights compensation, start with the operating airline. Booking sites can matter for ticketing or refund issues, but they are usually not the first target for statutory compensation.
Do I need to quote the law in my complaint?
It helps. A short reference to EU261, UK261, or APPR shows the airline what framework you are relying on.
What if I do not have every document?
File what you have, but try to reconstruct the timeline with email confirmations, app screenshots, bank records, and any written communication from the airline.
If you want to understand the underlying rights before filing, start with our EU261 guide. If you are already ready to move, begin your claim with airfairness.