These are lists of the largest airlines in North America, ranked by several different metrics.
By passengers carried
This is a list of North America's largest passenger airlines in terms of enplaned passengers. Passenger numbers shown are inclusive of regional carriers operating under contract where applicable.
- ^1 Numbers on and after 2013 are for the merged American/US Airways
- ^2 Numbers on and after 2016 are for the merged Alaska/Virgin America
- ^3 For nine months ending September 2019
By fleet size
This is a list of airlines ranked by fleet size (including regional partners), as of 9 March 2021
By number of destinations
This is a list of airlines ranked by number of destinations, as of 9 March 2021
This is a list of airlines ranked by daily flights (frequency):
Airlines that have ceased to exist since 2008, either as a result of mergers or bankruptcy, are listed below.