Online check-in: Besides choosing their seat or paying for checked bags, passengers might also need to upload a document to confirm the presence of COVID-19 antibodies before they fly.

Airport curbside: Passengers could be required to arrive at least four hours ahead of their flight, and pass through a “disinfection tunnel” or thermal scanner to check their temperature before being allowed to enter the airport.

Check-in and bag drop: New touchless kiosks would allow passengers to check in by scanning a barcode, or using gestures or voice commands. Agents would be behind plexiglass shields, and bags would be disinfected and then “sanitagged.”

Health check: Passengers would undergo a health screening, and potentially even have their blood tested. In April, Emirates became the first airline to conduct rapid on-site COVID-19 testing of passengers before boarding.