Do you drive or get transported around in cars/taxis/minibuses/coaches/buses, or other land vehicles? Even electric?
Do you eat beef, pork, chicken, butter, cheese, eggs, yoghurt, anything dairy or with gelatine in it?
Because those two things combined far outweigh plane use per year. It's all very well targeting planes because you see it as unnecessary, but if we want to get really sanctimonious, let's get rid of cars because people could cycle three hours to work, they could only eat bread and water. Planes is an easy target because they're huge and we're socialised to see them as decadent, but they're not nearly as bad as all the cars etc people are getting about in or the meat people are consuming.