The carrier said it would also begin electrostatic cabin sanitization from an unspecified date in June and supply hand sanitizer wipes to passengers as they board.
United chief executive Scott Kirby said: “We recognize that Covid-19 has brought cleanliness and hygiene standards to the front of customers’ minds when making travel decisions, and we’re not leaving a single stone unturned in our pursuit to better protect our customers and employees.”
It said advance seat selections would be limited and customers would be permitted to take alternative flights “when we expect a flight to operate over 70% capacity”.