The measures are expected to include permission for governments to pay for insurance costs, if commercial cover is withdrawn, as it was in the wake of the 11 September attacks.
Additional security costs on board and at airports can also be covered.
Rules on using landing slots will be relaxed and the EU will 'monitor' any unfair advantage that may be given to US airlines if they are bailed out by their government.
The Commission is expected to rule out compensation for 'direct losses' which last occurred when the US closed its airspace for three days in September 2001.
A spokesman for the Department of Transport said the impact of the war on the European aviation industry would be discussed by ministers in Brussels on Friday.
A spokesman for Aer Lingus confirmed that bookings on its transatlantic routes were 20% down last week but overall, bookings are up for this time of year.
The spokesman said it was too early to fully assess what potential impact the war would have on its business.
