Applicable regime
First establish whether EU261, UK261, Türkiye passenger-rights rules or another framework covers the journey.
How long you have to claim is not one universal number. The deadline can depend on the passenger-rights regime, the country whose limitation rules apply and how the claim is pursued.
EU261, UK261 and Türkiye-related claims can involve different legal and procedural time limits. Starting early is safer than waiting for a deadline.

The useful answer starts with the legal framework, not a generic number.
Do not assume every flight-compensation claim has the same deadline. EU261 creates compensation rights but does not set one EU-wide limitation period for bringing those claims. UK court time limits depend on the jurisdiction. Türkiye-related claims also require the correct legal basis and procedure to be identified.
That is why a flight from several years ago may still deserve checking, while another route or procedure may face a different deadline.
Three questions determine the timing analysis.
First establish whether EU261, UK261, Türkiye passenger-rights rules or another framework covers the journey.
The time allowed to enforce a claim can come from national procedural or limitation law rather than the passenger-rights regulation itself.
An airline complaint, ADR route, regulator escalation and court proceedings do not necessarily share identical procedural deadlines.
National limitation rules can determine how long an action may be brought.
The Court of Justice of the European Union has held that Regulation (EC) No 261/2004 does not itself set the time limit for bringing compensation actions. The applicable period is determined by the rules of the relevant Member State.
For eligibility under the regulation itself, read our EU261 compensation guide. If you are unsure which framework covers your journey, compare EU261, UK261 and Turkish passenger rights.
The legal deadline should not be confused with the airline’s processing time.
The UK Civil Aviation Authority explains that, where a passenger needs to take a claim to court, the time limit is generally six years in England and Wales and five years in Scotland. Different routes can have their own requirements, so passengers should not wait until the end of the period before contacting the airline.
See the UK261 compensation guide for the underlying eligibility rules. For journeys between the UK and Türkiye, our UK–Türkiye flights and UK261 guide explains route coverage in more detail.
There is no safe one-number answer for every Türkiye-related compensation claim.
Türkiye’s passenger-rights framework and complaint process require careful route and jurisdiction analysis. SHGM’s passenger complaint process directs passengers to apply to the airline first before escalating an unresolved complaint through the authority’s system.
Start with our Türkiye flight compensation guide. AJet passengers can also use the AJet compensation claim guide for airline-specific guidance.
Possibly. The flight date alone does not answer the question.
Find the date, route, operating airline and booking reference.
Work out whether EU261, UK261, Türkiye rules or another regime may apply.
Use the relevant country and procedure rather than a generic online number.
If the claim may still be in time, gather evidence and submit it rather than waiting.
Older claims become much easier to assess when the original records still exist.
For a fuller checklist, see documents needed for a flight compensation claim. A claim deadline is also different from processing time; if you already submitted a claim, read How Long Do Claims Take?
Quick answers about older flights and limitation periods.
Potentially. One year is not a universal cut-off. Whether the claim is still in time depends on the applicable passenger-rights regime and limitation rules.
No. EU261 does not establish one EU-wide limitation period for compensation actions. National rules determine the relevant time limit.
Not automatically. The CJEU has held that the Montreal Convention’s two-year period does not govern actions seeking the standard compensation created by Regulation 261/2004.
A rejection does not by itself establish whether a legal claim is out of time. Check the applicable limitation period and any available complaint, ADR or court route promptly.
No. A limitation period concerns how long you have to pursue a right. Processing time concerns what happens after a claim has been submitted.
Continue with the part of your claim you need to resolve next.
Check the flight details now. Eligibility and timing depend on the route, disruption, circumstances and applicable passenger-rights rules.
Check your compensation →This guide provides general passenger-rights information, not legal advice. Limitation rules can depend on jurisdiction and individual circumstances.