David Davis from the South East Coast Ambulance Service NHS Foundation Trust has told ITV News that passengers were mostly suffering from trauma, rather than smoke-inhalation, following an emergency landing at Gatwick Airport.
More top news
Police have stepped up patrols after the suspected targeted attacks.
The royal couple will carry out their first official engagements as husband and wife on Tuesday.
Flights from UK airports were an average of 15 minutes late in 2017.