Fare class NU is an award (miles) 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 deeply discounted award main cabin fare class that is eligible for complimentary upgrades.

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

Delta Fare Class NU Frequently Asked Questions