You're entitled to get compensation if the flight arrives more than 3 hours late and it's the airline's fault - for example, if they didn't get enough bookings or there was a technical fault.
Can you claim compensation for delayed flight?
Does the delay have to be the airline's fault to claim via my travel insurance? Depending on your travel insurance policy, you could be able to claim compensation from your insurer when the delay isn't the airline's fault. Check your policy terms and conditions for what situations it'll cover.
How long does a flight have to be delayed for compensation UK?
As long as your flight was delayed by three hours or more, you may be entitled to monetary compensation. The following table explains exactly how much flight delay compensation you could be entitled to.