The world's airlines are bracing for a fresh impact from the Omicron variant.
On Tuesday (November 30) the strongest warning came from mideast carrier Emirates.
Company President Tim Clark warned that any hit to seasonal travel will be devastating for an industry already hit by two years of heavy losses:
"So, I would say probably by the end of December, we'll have a much clearer position. But in that time, December is a very important month for the air travel business and if that is lost, or the winter is lost to a lot of carriers, there will be significant traumas in the business, certainly the aviation business and the periphery of that."
UK budget airline easyJet says it's already seeing a drop-off in demand.
It says resurgent health worries, including Omicron, have prompted people to rethink plans for city breaks.
Though it says the impact isn't yet as bad as during earlier lockdowns.
On Tuesday the airline reported a loss of $1.5 billion for the year to the end of September.
Scandinavia's SAS also said it remained in the red for the August to October quarter.
The latest warnings come after multiple countries including the U.S., UK, Japan and Israel imposed travel curbs in response to the new virus variant.