File your claim with a flight compensation company that offers the best customer support. The better customer support a company offers, the higher it’s placed on the list. You can also sort the companies by best, cheapest, fastest, most credible, best price, easiest to use, and best customer reviews. You should know that, if you arrive at your destination airport more than 3 hours late due to a delayed, cancelled or overbooked flight, you may be entitled to compensation of up to €600.