Delta Airline offers a number of Delta Fare Classes to suit the needs of different travelers. The Basic Economy fares are the cheapest, but do not offer much flexibility. Then there is the Main Cabin with its standard service and seat selection. Delta Comfort+ fare class features extra legroom and early boarding. First class offers a premium service and experience. The Delta Premium Select adds updated meal service and more spacious seating. Complete luxury for long-haul flights can be enjoyed at Delta One. For this, please call Delta at +1 (855) 559-2323.