Delta Air Lines is leading in offering the most affordable domestic and international flights. Delta flights cover the routes from the United States, Canada, Latin America, Europe, and Asia. • Besides reasonably priced tickets Delta Air Lines allows you to take hand baggage that should easily fit in the locker above or below the seat. • The quantity of the complete baggage depends on the route and booking class. • You also get the option of online check-in at Delta Air Lines before 24 hours of departure.