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How to Complain to KLM

KLM says UK customers can submit a complaint or claim through the Claims option in the customer service section of its contact page, and can also use a separate refund option. No response time was stated on the pages read. If it is not put right, you can take it to AviationADR.

Last checked 4 October 2026 Independent guide, not legal advice
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At A Glance

3 hourslate arriving at your destination before compensation can be due
£220 to £520fixed compensation per passenger, set by distance and delay
14 daysor more notice of a cancellation means no compensation
8 weeksfor the airline to reply before you can escalate

Your Rights

What the rules say, with a link to the official source for each.

Complaining to KLM

  • How to Complain

    KLM says UK customers can submit a complaint or claim through the Claims option in the customer service section of its contact page, and can also use a separate refund option. No response time was stated on the pages read. source

When the UK Rules Apply

  • Which Flights Are Covered

    UK flight rules (UK261) cover flights leaving a UK airport on any airline, flights arriving in the UK on an EU or UK airline, and flights arriving in the EU on a UK airline. source

  • Connecting Flights

    Connecting flights on a single booking are judged by the distance between your first and last airports. Separate bookings (self-transfer) have no statutory right to care, compensation or onward transport for the missed connection. source

Time Limits to Know

Miss a deadline and you can lose a right. Check the dates on your own paperwork.

  • 3 hours
    Delay that qualifies for compensationMore than 3 hours late arriving at your final destination
  • 2 to 4 hours
    Care and assistance for a delayFrom 2 hours (under 1,500 km), 3 hours (1,500 to 3,500 km) or 4 hours (over 3,500 km)
  • 5 hours
    Choose a refund instead of travellingIf the delay is at least 5 hours
  • 14 days
    Compensation for a cancellationOnly if you were told less than 14 days before departure
  • 6 years
    Legal claim for compensationGenerally 6 years in England and Wales, 5 years in Scotland (the CAA page does not state a limit, so check before you wait)

Steps to Take

Step 1 of 5

Gather your evidence: order, account or booking number, dates, receipts, screenshots, emails and notes of calls.

Step 2 of 5

Complain to KLM in writing using the route below, and ask for a complaint reference. Say what went wrong, what you want, and by when (14 days is reasonable). Our free letter templates can write it for you.

Step 3 of 5

Keep a record of every contact: dates, names and reference numbers. Use email or a form where you can, so you have proof.

Step 4 of 5

If you are not getting anywhere, ask for a final response in writing.

Step 5 of 5

If it is still not put right, take it to AviationADR.

(Tap the numbers to reveal steps)

Where to Go If It Is Not Put Right

Your options, in order, and when each one applies. All are free.

KLM Complaints

Always start here, in writing.

AviationADR

Once KLM has had its chance. See When You Can Escalate under Your Rights.

KLM Compensation or Delay Claims

The official page from KLM.

Your Card Provider

If you paid by card, Section 75 (credit card) or chargeback (debit card) may help.

Citizens Advice Consumer Service

Free advice. It can pass a report to Trading Standards.

Good to Know

Small things that make your complaint stronger.

AviationADR lists KLM as a participating member and notes that some carriers have geographic limits on the routes it can handle.

Keep your booking confirmation, boarding passes and receipts for extra costs.

For a long delay, cancellation or denied boarding on a flight covered by UK261, compensation of £220, £350 or £520 may be payable depending on distance (on flights over 3,500 km it is £260 if you arrive 3 to 4 hours late), unless extraordinary circumstances applied.

For damaged baggage, make a written claim within 7 days. For delayed baggage, within 21 days.

Consumer Protection UK is independent and is not connected to KLM. This guide uses information published by KLM and the schemes named here. All product names, logos and brands are property of their respective owners.

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Luke Marley

Lead reviewer

Luke Marley

Founder and Lead Reviewer

Luke founded CPUK in 2026 after seeing how hard it is for ordinary people to get problems with companies put right. He oversees our guides and checks them against official sources.

Research by Katie Burt, Co-founder and Operations Lead (17 years in the care sector, including managing services for vulnerable adults), and the CPUK Research Team. Researched with AI-assisted research tools, then checked and corrected by our team.

Last checked: 12 October 2026. We are not paid by the companies we write about. Adverts never affect our guidance. Read our editorial policy.

Sources and official links

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