Table 5.

Aircraft boarding procedures for selected airlines during COVID-19.

Airline	Seating/boarding procedure
Alaska Airlines	Middle seat empty (Milne et al., 2020a)
Delta Air Lines	Middle seat empty; back-to-front by row (Cotfas et al., 2020)
Easyjet	Seat numbers (Milne et al., 2020a)
Go Air	Front-to-back from rear (Milne et al., 2020a)
Hainan Airlines	Random boarding
Southwest Airlines	In groups of ten passengers (Cotfas et al., 2020)
United Airlines	Back-to-front by row; business class last
Wizzair	Middle seat empty (Milne et al., 2020a)