Fare class SU is a revenue fare class that is used for cleared upgrade space into the Delta Comfort+ cabin on Delta Air Lines mainline and code share flights. This fare class is eligible for complimentary upgrades on domestic and short-haul international routes.
Also referred to as: Booking Class SU, Booking Code SU, Fare Class SU, Ticket Code SU, Class SU, SU Fare or Comfort (SU)
Fare Class SU boards the aircraft in the “Comfort+” boarding group. This zone boards after first class on domestic and short-haul international flights and boards after Delta Premium Select on long-haul international flights.
What cabin of service is Fare Class SU?
Passengers holding a ticket in Fare Class SU will be seated in Comfort+ Cabin on domestic and international flights.
What are the frequent flyer earnings for Fare Class SU?
Fare class SU earns standard flown MQMs, MQDs, MQSs and RDM as calculated by the ticketed passenger’s elite status at the time of departure.
What are the restrictions for Fare Class SU?
Fare class SU restrictions are based on the originally ticketed fare class. See ticket rules for complete details.
How to get upgraded with a Fare Class SU ticket?
Complimentary upgrades are available on domestic and short-haul international flights to First Class and are ordered by elite status (DM, PM, GM, SM), then fare class basis code (Y, B, M, H, Q, K, L, U, T, X, V). Unfortunately, finding the fare basis code will require a call to reservations.
Certain domestic transcontinental routes with a Delta One cabin will have complimentary day-of-departure upgrades available. Upgrades are ordered by elite status (DM, PM, GM, SM), then fare class basis code (Y, B, M, H, Q, K, L, U, T, X, V).
International long-haul flights with Delta Premium Select and Delta One cabins will require use of a global upgrade certificate to be applied to the reservation to access these cabins – there are no complimentary upgrades available.