air sickness

from the GNU version of the Collaborative International Dictionary of English.

• A vomiting or nauseous feeling similar to seasickness experienced by passengers in aircraft; -- it is caused by motion and distinguished from the effects of low air pressure, as it may also occur in the pressurized cabins of large aircraft.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun motion sickness experienced while traveling by air (especially during turbulence)