Check the applicable rules
The UK has its own passenger rights framework, commonly called UK261. Check the UK Civil Aviation Authority guidance to establish whether it covers your journey.
Support and compensation
Depending on the disruption, you may have rights to care, a refund, rerouting or compensation. UK compensation is expressed in pounds; an EU euro amount must not simply be applied to every UK journey.
Information for your review
Keep the booking confirmation, boarding pass and airline correspondence. Provide your scheduled and actual arrival details and any replacement travel arrangements.