More than 4,000 flights were canceled on Sunday, more than half of which were in the US, as new coronaviruses caused staff shortages at airlines and airports during the busy holiday travel season.
People wait to check-in at the airlines counter at the airport.
The images are from the same company.
2,393 of the 4,020 flights that had been canceled by Sunday afternoon were within the U.S.
There were 4,519 flights that were delayed on Sunday.
Chicago O'Hare is the airport with the most flights canceled on Sunday, 26% of them planned, as Cook County grapples with a record number of coronaviruses and a snowstorm.
SkyWest Airlines, a regional carrier, canceled 510 flights on Sunday, or 21% of its scheduled trips.
Airlines have had to cancel flights due to snow storms, freezing temperatures and severe weather across the country.
The days before Christmas were when mass flight cancelations were first reported. Last week, Dr. Fauci told MSNBC that the government should consider requiring vaccine for domestic flights. The omicron variant of coronaviruses is more transmissible than the others and has been the cause of the surge of coronaviruses in the U.S.
More than 2,600 flights were canceled on New Year's Day in the U.S.
FAA Warns Of More Flight Delays, as Increased Number Of Workers Test Positive For Covid.
