British airways just introduced a series of videos available on board some of their aircrafts and on the airline’s “Health and Wellbeing” webpage. It provides tips for passengers to find peace of mind and to push away the stress before, and during, a flight. Although it may give you some frightening Eckhart Tolle flashbacks, such videos might prove helpful for anxious flyers, among others.
In September 2014, the same airline also introduced “Paws and Relax”, an in-flight channel featuring cute cats and dogs videos that supposedly help passengers lower their heart rates and reduce their stress levels.
But the best stress-relief strategy comes from the airlines that have had the brilliant idea to bring dogs around airports to provide passengers with furry cuddles while waiting in lines or at the gate. Dog lovers will undoubtedly appreciate. 
Therapy dogs coming to Alberta airport https://t.co/tTRLsHIXln
— John Canavan (@JohnCanavan) 8 Avril 2015
#Veterans from @HonorFlightNV pet Paws4Passengers therapy dogs @RenoAirport on their way to Washington. pic.twitter.com/zLhoH4dz9i
— Reno-Tahoe Airport (@RenoAirport) 16 Avril 2015