Originally Posted by
planemechanic
Actually I believe the worlds largest airline is United Airlines.
The latest figures (Sept 2011) I can find have Delta as #1.
Airline fleets are in a state of constant flux as new planes are delivered and old ones retired. The top 5 are consistent although DL/UA may swap the lead from time to time for the above reason.
1. Delta 744 plus 121 on order
2. United 712 plus 116
3. Southwest 709 plus 403
4. American 624 plus 571
5. British 487 +134
Some lists place Lufthansa (710+155) and Air France (616+80) higher but these are
group totals which include what I consider to be separate airlines; Swiss and Austrian and KLM respectively.