Wizz Air technical fault compensation

Why "technical reasons" rarely blocks a claim

Airlines lean on the phrase "technical reasons" because they know it sounds like something outside their control. In law it is almost the opposite. Under Article 5(3) of Regulation (EC) 261/2004, an operating carrier only escapes compensation if the disruption was caused by extraordinary circumstances that could not have been avoided even if all reasonable measures had been taken.

The CJEU has drawn a firm line here. In Wallentin-Hermann (C-549/07) the Court held that a technical problem coming to light during aircraft maintenance, or because of a failure to maintain the aircraft, is not extraordinary. Technical faults are inherent in the normal activity of running an airline. In van der Lans (C-257/14) the Court went further: even an unexpected, spontaneous component failure is part of the ordinary operation of an air carrier and does not qualify as extraordinary, because carriers routinely encounter such problems.

So a defective sensor, an engine warning light, a hydraulic leak, a worn part, a faulty valve, an APU that will not start, a cabin-pressure fault or a "the aircraft needs an unscheduled check" delay is, in the overwhelming majority of cases, a compensable event. Wizz Air still owes the fixed sum even though nobody did anything careless, because the law treats routine mechanical failure as a business risk the airline carries, not you.

What you are actually owed

Keep four separate rights apart. They are not the same thing and airlines sometimes blur them.

• Compensation (Article 7): a fixed cash sum for the disruption itself. EUR 250 for flights up to 1,500 km, EUR 400 for flights between 1,500 and 3,500 km (and all intra-EU flights over 1,500 km), EUR 600 for other flights over 3,500 km. From a UK airport under UK261 the bands are GBP 220 / GBP 350 / GBP 520. Which regime applies is set by your departure airport: an EU/EEA departure means EU261 and euros; a UK departure means UK261 and pounds. Because Wizz operates both ways, your outbound and return legs can fall under different regimes.
• Refund or re-routing (Article 8): if the flight is cancelled, or you choose not to travel after a long delay, you can take a full refund of the unused ticket, paid in money to your original payment method within seven days, or alternative transport to your destination.
• Right to care (Article 9): meals and refreshments, and where needed hotel accommodation and transfers, provided free while you wait. This kicks in at 2, 3 or 4 hours depending on distance and applies even when the cause is genuinely extraordinary.
• Damages / out-of-pocket costs: reasonable extra expenses caused by the disruption, kept separate from the fixed compensation above.

You can work out the fixed figure for your exact route with the flight compensation calculator. A technical fault does not reduce any of these amounts.

The narrow exceptions

Not every problem framed as "technical" is inherent to running an airline. A small set of situations can genuinely count as extraordinary:

• A hidden manufacturing defect flagged by the maker or a competent aviation authority as a safety problem affecting a whole aircraft type already in service. Wallentin-Hermann and van der Lans both carve this out as the rare case that sits outside normal operations.
• Sabotage or an act of terrorism that damages the aircraft.
• Damage from an external event, such as a bird strike or debris on the runway, which is a separate cause rather than an ordinary internal component failure.

These are the exception, not the rule, and the bar is high. A one-off part failing on a plane in Wizz Air's own fleet, discovered during a normal turnaround, does not become extraordinary just because it was unexpected. Crucially, even in a genuinely extraordinary case the airline must also show it took all reasonable measures to avoid the delay, for example by having spares and standby capacity in place.

The burden of proof is on Wizz Air, not you

This is the point most passengers miss. You do not have to prove the fault was ordinary. Once your flight is 3+ hours late or cancelled, the operating carrier must prove the cause was extraordinary and unavoidable if it wants to refuse compensation. A vague line such as "your flight was disrupted for technical/operational reasons" is not evidence of anything. It is a label, and a label does not discharge the legal burden.

For more on where the line sits, see our guide on Wizz Air and extraordinary circumstances.

How to rebut a vague "technical reasons" rejection

If Wizz Air rejects you on unspecified technical grounds, do not accept it at face value. Reply in writing and:

1. Ask for specifics. Request the precise technical cause, when it was discovered, and what reasonable measures were taken to avoid the disruption. Vagueness works in the airline's favour, so remove it.
2. Cite the case law. State plainly that under van der Lans (C-257/14) and Wallentin-Hermann (C-549/07) an ordinary technical or mechanical fault is not an extraordinary circumstance, and that the burden of proof is on the operating carrier.
3. Name the operating carrier. Wizz Air flies through separate entities, including Wizz Air Hungary, Wizz Air Malta, Wizz Air UK and Wizz Air Abu Dhabi. The entity that operated your flight is the one that owes you (Wirth C-532/17), and it is the one you claim against and escalate to the matching regulator.
4. Confirm the delay at final destination. Compensation is triggered by arrival 3+ hours late at your final booked destination, including any connection, following Folkerts (C-11/11) and Sturgeon (C-402/07).
5. Escalate. If Wizz Air still refuses without real proof, take it to the relevant National Enforcement Body. For UK departures that is the UK Civil Aviation Authority; for EU/EEA departures it is the NEB in the departure country. The CAA took enforcement action in 2023 and Wizz Air gave undertakings to improve its refund and EU261 payments and clear its backlog. Treat that as dated background, not a guarantee that any single claim will be paid without pushing.

Keep your boarding pass, booking reference, any delay or cancellation message, and screenshots of the departure board. If the disruption was a cancellation, remember that a WIZZ credit at 120% of your fare is never a lawful substitute for the cash refund you are entitled to under Article 8 unless you actively agree to it. See refund vs WIZZ credit and, if you are unsure which regime applies, UK261 vs EU261.

FAQ

Wizz Air said the delay was "technical" — can they still owe me money?

Yes, usually. An ordinary technical or mechanical fault is not an extraordinary circumstance, so if you arrived 3+ hours late or the flight was cancelled, compensation is normally due. The airline must prove otherwise.

Does it matter that the fault was a safety issue?

No. Grounding a plane for safety is right and proper, but it does not turn a routine fault into an extraordinary circumstance. The Court has repeatedly rejected that argument.

How much can I claim for a technical-fault delay?

Between EUR 250 and EUR 600 under EU261, or GBP 220 to GBP 520 under UK261, depending on distance and departure airport. A technical fault does not reduce the amount.

What if Wizz Air only offered a voucher or WIZZ credit?

You can decline it. A refund under Article 8 must be paid in money to your original payment method within seven days unless you agree to a voucher. Fixed compensation under Article 7 is separate again.

Where do I go if Wizz Air keeps refusing?

Escalate to the National Enforcement Body for your departure country — the UK CAA for UK departures, or the relevant EU/EEA regulator otherwise. Start with the Wizz Air compensation hub and the guide on delayed flights.

Sources

• Regulation (EC) 261/2004 (EUR-Lex): https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32004R0261
• UK Civil Aviation Authority — delays and cancellations: https://www.caa.co.uk/passengers/resolving-travel-problems/delays-cancellations/
• European Commission — air passenger rights: https://europa.eu/youreurope/citizens/travel/passenger-rights/air/index_en.htm
• CJEU judgments van der Lans (C-257/14) and Wallentin-Hermann (C-549/07), via the Court's case-law portal: https://curia.europa.eu/

Position stated as at 2026 and based on Regulation (EC) 261/2004 and its UK261 equivalent; the 2026 EU261 reform (longer delay thresholds, a nine-month claim window, a 30-day response deadline) is a proposal and not yet law. This is general information, not legal advice.