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Denied boarding happens when an airline refuses to let you board your flight even though you have a valid ticket and arrived on time. It can occur for several reasons, from overbooking and aircraft changes to crew shortages or aircraft weight limits. Under UK Regulation 261 and EU Regulation 261/2004, airlines must provide most affected passengers with rerouting or a refund, care such as meals or hotel stays, and, in many cases, cash compensation. This guide explains what to do if you’re denied boarding, when you’re protected, what you’re entitled to, and how to claim it.
If you’re flying from the UK or EU on any airline, or you’re arriving in the UK or EU on an airline from those areas, you’re protected by UK Regulation 261/2004 and EU Regulation (EC) No 261/2004. Both sets of regulations state that if you’re prevented from boarding your flight for reasons within the airline’s control, you’re entitled to:

The Civil Aviation Authority (CAA) explains that the denied boarding rules apply when the airline “cannot accommodate you due to a lack of space”, but not when refusal is justified.
This means that if you were denied boarding because of something the airline did then you will be covered by UK and EU passenger rights rules. But if you were denied boarding because of something YOU did, then the passenger rights protections don't apply. But for most “bumping” cases, the law is firmly on the passenger’s side.
Determining when the airline is and isn’t at fault is vital for exercising your passenger rights. Here’s how it works.
If you’re bumped from your flight for any of the following reasons, then you are most likely covered by the rules of UK/EU261:
In each case, the airline is responsible and must offer rerouting or a refund, provide care, and financial compensation.
If you miss check-in, arrive late at the gate, lack valid travel documents, or display unruly behaviour, concerning health issues, or intoxication, the airline can legally deny you boarding. Because these are all passenger-controlled issues, they don’t trigger compensation.

The following table will show you what you are entitled to in different denied boarding situations.
Situation | Who’s at Fault | Covered by UK261/EU261 | Entitled to Rerouting or Refund | Entitled to Compensation | Typical Outcome |
Flight overbooked (oversold) | Airline |
|
|
| Airline rebooks you and pays fixed compensation (£220–£520 / €250–€600) |
Aircraft changed to smaller model | Airline |
|
|
| Eligible for denied boarding claim; same rights as overbooking |
Crew shortage or weight/balance issue | Airline |
|
|
| Airline provides rerouting, meals/hotel if delayed, and compensation |
Invalid or missing passport/visa | Passenger |
|
|
| Passenger must correct documents and purchase new ticket |
Late check-in or late arrival at gate | Passenger |
|
|
| Airline may rebook at your cost if space allows |
Unruly or intoxicated behaviour | Passenger |
|
|
| Boarding denied for safety; possible future ban |
Security or health-related refusal | Passenger |
|
|
| Passenger not protected under Regulation 261 |
Airline wrongly claims invalid documents | Airline |
|
|
| Eligible for compensation and rerouting; must prove compliance |
Denied boarding due to travel restrictions (e.g. pandemic rules) | Neither (extraordinary circumstance) | ⚠️ Depends |
|
| Rerouting/refund only; no compensation if outside airline’s control |
When a flight is oversold or its capacity is reduced, airlines are legally required under Article 4 of Regulation (EC) No 261/2004 to first look for volunteers before denying boarding to anyone against their will. This means they must ask if any passengers are willing to give up their seat in exchange for benefits, which are usually travel vouchers, upgrades, or a cash offer.
If you agree to volunteer, you and the airline are entering into a private deal. You can, and should, negotiate what you get in return for giving up your seat, since the law doesn’t set minimums for voluntary offers. Common incentives include:
It’s worth knowing that volunteering your seat means you waive your right to the fixed compensation set out in the law. Once you accept the airline’s offer, you’re no longer covered by the automatic cash amounts (£220–£520 / €250–€600). You’ll still receive care (like food and rebooking), but the terms are whatever you agreed upon with the airline.
So, before you agree to anything, ask for the offer in writing and make sure it actually benefits you. If your travel plans are flexible, volunteering can be worthwhile, but if time matters, it’s better to wait because if you’re bumped involuntarily, your full statutory rights apply.
If the airline can’t find enough volunteers, it can move on to involuntary denied boarding. This happens when you’re refused boarding despite having:
In that case, your full legal protections under UK261/EU261 apply automatically, regardless of what the airline offers you. In this case, you’re entitled to:
Also, you’re entitled to immediate compensation payment at the airport, in theory. Airlines are supposed to offer compensation on the spot when the incident occurs. In practice, however, many carriers process payments later through their claims department. You’ll usually need to submit a short written claim or online form to trigger the payout.
As you can see, there is a lot of grey area here, so if you have any questions about your eligibility, check your flight details below.Check Your Flight
If you choose to be rebooked after being denied boarding, you want the airline to take responsibility for getting you to your destination, and not treat your new journey as a separate purchase. The booking reference (also called a PNR, or Passenger Name Record) is what legally links your new flight to your original contract of carriage.
If the new flight is issued under your existing booking reference, it confirms the airline is fulfilling its duty to reroute you at no extra cost under Regulation 261. It also means you remain covered by the same passenger rights if your rebooked flight ends up running late and you arrive much later than planned, or if the replacement flight is cancelled and you’re forced to change plans again.
If you’re rebooked on a later flight, the amount of compensation you receive can change depending on how long you’re delayed in reaching your final destination.
Article 7(2) of UK/EU261says that airlines may reduce the compensation by 50% if they manage to reroute you and you arrive less than three hours later than your originally scheduled arrival time.
That means if your new flight still gets you to your destination relatively close to the original time, you’ll receive half the standard payout. For example, a passenger entitled to £520 (€600) for a long-haul flight may receive £260 (€300) if they arrive within that three-hour window.
This rule only applies to rerouted passengers. If you choose a refund instead of a reroute, the full compensation still applies.

If you’re unexpectedly prevented from boarding your flight, you can still take control of the situation. Here’s exactly what to do, and what to say, to protect your rights and make sure you’re properly compensated.
Politely ask the airline representative to confirm why you’re being denied boarding. The choice of words matters, and phrases like “denied boarding due to overbooking” or “operational aircraft change” are key, because they prove the situation was under the airline’s control. Written confirmation (even on a boarding pass or printed note) will strengthen your claim later.
Tell the staff you’re aware of your rights under UK Regulation 261 (or EU 261/2004). Then, ask for:
Staying polite but firm makes it clear you understand your rights — and helps you get faster, more cooperative responses.
Keep all boarding passes, luggage tags, booking confirmations, and any written messages from the airline. Take screenshots of app notifications, flight status updates, and airport screens showing delays or boarding restrictions. Keep receipts for food, transport, or accommodation because these are reimbursable under Article 9 of the Regulation.
Airlines don’t always pay compensation automatically. Once you’ve completed your journey (or cancelled it), file a written claim with the airline’s customer relations department. Include all your evidence and reference Regulation UK/EU261 directly.
If the airline ignores your claim or refuses compensation, you can escalate to the Civil Aviation Authority in the UK or a National Enforcement Body in the EU country where the incident occurred.
You generally have up to six years to claim in the UK (under the Limitation Act 1980), but each EU country has their own statute of limitations. The sooner you act, the easier it is to gather documentation and ensure timely payment.

Once you’ve submitted a valid claim, most airlines take time to process it. Payment is rarely immediate. According to Civil Aviation Authority (CAA) guidance, airlines are expected to respond to written compensation claims within 4 to 6 weeks.
If you haven’t heard back after that period, you can send a follow-up message or escalate your complaint to the CAA (for UK flights) or the relevant National Enforcement Body (for EU flights).
For complex cases or disputes, resolution through these authorities may take a few additional weeks, but claims submitted with clear evidence, such as boarding passes and written proof of denied boarding, tend to be processed faster.
But, why waste your time and effort? At AirAdvisor, we can act on your behalf, so you get the maximum payout without the stress. Plus, it’s risk free. You don’t pay a fee unless we win your case. We’ll gather the evidence and negotiate directly with the airline, all without upfront costs. This means that a frustrating travel experience can be turned into a fair financial outcome.
Here are a few real examples of how AirAdvisor has helped passengers across the UK recover what they were owed after being denied boarding.
In late 2023, two passengers travelling from Amsterdam to London Gatwick were denied boarding on their British Airways flight due to an overbooking issue. Despite arriving at the gate well before departure, they were told the flight was full and were placed on standby.
British Airways rebooked them on a later flight but refused to provide meal vouchers or compensation, claiming the issue was “a system error.” The passengers reached out to AirAdvisor, who reviewed the case and confirmed that overbooking is explicitly covered by UK261, which grants immediate compensation when a passenger is involuntarily denied boarding.
AirAdvisor secured £220 (€250) for each passenger. The pair described the experience as “stressful at first, but completely worth it once AirAdvisor took over.”
A passenger at London Gatwick Airport was denied boarding on an easyJet flight to Geneva after losing their ID just moments before boarding. The airline refused to offer any assistance or alternative rebooking options, leaving the traveller stranded.
Although ID loss typically isn’t the airline’s fault, AirAdvisor investigated and discovered that the passenger had been misinformed about reissuance procedures by the airline’s ground staff, which led to their removal from the flight list.
After negotiating with easyJet’s claims team, AirAdvisor successfully secured a goodwill payout of £220 (€250) and a refund for the unused return leg, proving that even seemingly hopeless cases can have fair outcomes when handled professionally.
A family of three travelling from Antalya to Birmingham with Jet2 were denied boarding due to overbooking despite having confirmed tickets. The next available flight was nearly 24 hours later, forcing them to pay for overnight accommodation out of pocket.
Jet2 initially claimed the passengers had “checked in late,” but AirAdvisor’s legal team gathered timestamp evidence showing they had arrived at the desk well within the cut-off time.
AirAdvisor obtained £350 (€400) in compensation per person and reimbursement for hotel costs, bringing the family’s total recovery to over £1,000. The passengers said they were “impressed by how quickly AirAdvisor handled everything.”
AirAdvisor, the world’s #1 flight and baggage compensation company, has already helped over half a million passengers recover what they’re legally owed under UK261 and EU261, turning stressful situations into simple, fair outcomes.
Have you been denied boarding? Find out if you’re owed money from the airline and start your claim today!Just enter your flight details to get started
1. UK Government – Regulation (EC) No 261/2004 establishing common rules on compensation and assistance to passengers in the event of denied boarding and of cancellation or long delay of flights – legislation.gov.uk
2. UK Government – Limitation Act 1980 – legislation.gov.uk
3. UK Civil Aviation Authority – Denied boarding, delays and cancellations guidance – caa.co.uk
4. European Commission – Passenger Rights Overview – transport.ec.europa.eu
5. European Commission – List of National Enforcement Bodies – transport.ec.europa.eu
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