Fare class K is a revenue fare/booking class of service that is marketed as Main Cabin on Delta Air Lines mainline and code share flights. This fare class is considered a discounted main cabin fare class that is eligible for complimentary upgrades.

Also referred to as: Booking Class K, Booking Code K, Fare Class K, Ticket Code K, Class K, K Fare or Main Cabin (K)

Delta Fare Class K Frequently Asked Questions