Flight overbooking happens when an airline sells more tickets than available seats on a flight.
This is a common industry practice designed to offset expected “no-shows” — passengers who don’t check in or cancel last minute.
However, when everyone shows up, the airline ends up with more passengers than seats, which can lead to denied boarding.
Learn More About the Definition of "Flight Overbooking"
How to define overbooking?
Airlines overbook flights because statistics show that a small percentage of passengers typically miss their flights.
To keep planes full and reduce revenue loss, they sell extra tickets — assuming some travellers won’t show up.
When that assumption fails, airlines must ask for volunteers to give up their seats in exchange for compensation, upgrades, or travel vouchers.
If not enough passengers volunteer, some are denied boarding involuntarily, which is when EU261/UK261 compensation rights apply.
Key facts about flight overbooking:
- It is legal under EU law, as long as passenger rights are respected.
- Airlines must first ask for volunteers before denying boarding.
- Passengers denied boarding against their will are entitled to immediate assistance and financial compensation.
When does Flight Overbooking qualify for compensation?
You are eligible for compensation under EU261/UK261 if:
- You had a confirmed booking and valid travel documents.
- You checked in on time as required.
- The airline denied you boarding involuntarily due to overbooking.
- The flight departed from the EU/UK, or was operated by an EU/UK carrier arriving into the EU/UK.
Compensation amounts (EU261)
| Flight Distance | Compensation (€) |
| Up to 1,500 km | €250 |
| 1,500–3,500 km | €400 |
| Over 3,500 km | €600 |
In addition to cash compensation, the airline must offer:
- Re-routing or refund of your ticket
- Meals and refreshments while waiting
- Hotel accommodation if overnight stay is necessary
- Transport between airport and hotel
- Two free communications (calls, emails or messages)
Why does it matter?
Flight overbooking can turn a smooth trip into a stressful experience — especially if you’re left behind at the gate.
But EU261/UK261 ensures passengers are protected from airline overbooking practices.
Knowing your rights allows you to make an informed choice — whether to accept voluntary compensation or claim what the law guarantees.
How does AireClaim help with a Flight Overbooking?
AireClaim helps passengers who were denied boarding due to overbooking claim what they’re owed.
We analyse your case, confirm eligibility, handle airline communication, and, if necessary, escalate to court — all with no upfront cost.
You only pay a success fee if we win.
- Start here: Check eligibility & start your flight claim
- Read more: Passenger Rights under EU261
FAQs about What is a Flight Overbooking
Yes — it’s legal, but airlines must follow strict passenger protection rules. They must seek volunteers first, then compensate passengers denied boarding involuntarily under EU261/UK261. Learn more in EU Regulation 261.
If you volunteered and accepted a voucher or travel credit, that replaces your right to EU261 compensation. If you felt pressured or not properly informed, AireClaim can help review if it was truly voluntary. Learn more in flight disruption.
Keep your boarding pass, booking confirmation, and written communication from the airline or gate agent. These documents are essential to verify your case and claim compensation with AireClaim. Learn more in EU261 Regulation.