Middle seats in the planes of some airlines are vacant. Passengers and crew members aboard cruise ships are socially distancing when possible and wearing masks. Some countries remain closed to non-residents, while others won’t allow people from the United States to enter.
Few aspects of life have been hit harder by the COVID-19 pandemic than travel, and there’s no end in sight. Or is there? The kinds of trips people take in the months ahead will be different than in the past. A number of t