Airlines do not order planes on the basis of national origin....
European airlines purchase large numbers of (US manufactured, with significant international contribution) Boeings (eg British Airways widebody fleet), and US airlines purchase large numbers of Airbus(manufactured primarily in France, Germany, Britain & Spain) planes (eg US Airways).
When will posters to this website get it into their heads that ACCOUNTANTS, working for the airlines, decide which plane to purchase, their decisions being based purely on operating economics and deals available. (Operating economics will depend on routes operated).
Pilots, Flight attendants, aerospace enthusiasts or those supporting their own national aerospace interests do NOT decide.
This should NOT be a Boeing versus Airbus forum, it should spread understanding and appreciation of aerospace issues.