1) Before the introduction of A330 into their fleet, Virgin Atlantic has all airplanes operated by 4 engines namely A340 and B747.
2) Lufthansa and Qantas are the two world's biggest airlines which don't have any B777 in their fleet.
3) Some of the airlines having all wide body aircrafts: Emirates, Cathay Pacific, Singapore Airlines, V Australia, Virgin Atlantic, Air Transat, Evergreen International Airlines, Air Asia X and Air Tahiti Nui.
If you have any interesting info, let us know
