Even though Volaris is a Mexican airline, it follows the rules given under EC 261 if the flight is departing from a European airport or landing at the same. According to the Volaris flight delay compensation policy, In any event, when the Volaris flights do not set a departure from any European airport, the EC 261 rules still apply.According to their policy, for delays of more than one hour but less than four hours, passengers may be eligible for compensation to book another flight.
https://www.travomonk.com/flig....ht-delay/volaris-fli