What is the UK CAA complaint win rate in 2026?

Approximately 68 percent of approved-ADR passenger complaints result in airline payout per 2024/25 CAA data, when evidence is complete and the airline's refusal does not meet the extraordinary circumstances bar.

Do I pay to file a UK CAA or ADR complaint?

No. ADR scheme fees are paid by the airline. Passengers file at no cost.

How long does the UK CAA complaint process take?

8 weeks for the airline to respond, then 6 to 12 weeks for ADR investigation. Total typical timeline: 16 to 20 weeks.

Is the ADR decision binding?

Binding on the airline up to £10,000. Passengers may reject the ADR decision and pursue County Court if unhappy with the outcome.

What if my airline is not in any ADR scheme?

File directly with the CAA PACT (Passenger Advice and Complaints Team). PACT is non-binding but produces regulatory pressure that often results in settlement.

Can I file a UK CAA complaint alongside an EU261 complaint for the same flight?

No. UK261 applies for UK-departing flights and UK-carrier arrivals. EU261 applies for EU-departing flights. The jurisdictions do not overlap.

How far back can I file a UK CAA complaint?

UK261 claims have a 6-year statutory limitation in England and Wales (5 years in Scotland). File within 12 months of the airline's final refusal for ADR eligibility.

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How-ToApril 21, 2026•7 min read

UK CAA Complaint Form: How to Win

A UK CAA complaint is the escalation path when the airline refuses or ignores a UK261 claim. Winning requires the right ADR scheme, tight documentation, and citation of the Civil Aviation Act 2012. Here is the 2026 playbook.

When a UK CAA Complaint Wins

A UK CAA complaint win requires three things: an eligible flight (UK-departing or UK carrier arriving in UK), a formal airline refusal (or 8 weeks of silence), and documentary proof of delay cause and length. When those boxes are ticked, the approved ADR schemes rule in the passenger's favour roughly 68 percent of the time per CAA 2024/25 data.

You must exhaust the airline's internal process first. Submit a written complaint and wait 8 weeks (or receive final refusal). CAA will not accept a complaint filed before that window closes.

AviationADR vs CEDR

UK airlines sign up to one of two approved ADR schemes:

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AviationADR (owned by CDRL): covers easyJet, Jet2, Ryanair UK, Wizz Air UK, TUI, and most charter carriers.
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CEDR: covers British Airways, Virgin Atlantic, Aer Lingus UK operations.
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Not in any scheme: a small number of non-UK carriers; complaint goes directly to CAA PACT.

Check which scheme your airline uses before filing. Filing with the wrong scheme wastes 4 to 6 weeks of processing time.

Evidence That Wins

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Boarding pass showing scheduled and actual departure/arrival times.
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Airline's written refusal (email or letter).
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Flight tracker screenshots (FlightAware, Flightradar24).
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METAR or airport ops data if weather is in dispute.
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EU261/UK261 calculation with distance and compensation tier.
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Any prior correspondence with the airline.

Drafting the Complaint Narrative

Keep the complaint narrative under 500 words. Lead with the flight number, dates, and distance. State the delay length and arrival time at final destination. Quote the airline's refusal reason. Rebut with evidence. Cite the UK261 Regulation (EC) No 261/2004 as retained under UK law. Request the specific amount (£220, £350, or £520 per passenger).

See social media complaint paths that work in 2026 for parallel pressure. If you waited 30+ days for a response, check following up after 30 days of silence. For airline executive pressure, see when to cc the CEO on an airline complaint.

Timeline and Outcomes

1
Airline internal process: 8 weeks.
2
File ADR complaint: submit within 12 months of airline refusal.
3
ADR acknowledgement: 5 to 10 business days.
4
ADR investigation: 6 to 12 weeks.
5
Binding decision: ADR ruling is binding on the airline up to £10,000.
6
Enforcement: if airline ignores, escalate via County Court.

What Usually Goes Wrong

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Filing before 8-week airline window closes: auto-rejection.
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Missing arrival-time proof: ADR cannot verify delay length.
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Weather claim with no counter-evidence: extraordinary circumstances defense succeeds.
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Wrong ADR scheme: 4 to 6 weeks wasted.
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Calculation error on distance tier: result is halved or rejected.

Pillar Link and Authority Sources

For the pillar see How to Write an Airline Complaint Letter. For primary texts see UK CAA Passenger Advice, AviationADR, and CEDR Aviation.

TravelStacks files UK CAA complaints as part of the 25 percent UK261 service. Start a claim in 30 seconds.

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