club class 
noun [mass noun] British
A class of seating on an aircraft that is superior to economy class but less expensive than first class, intended especially for people travelling on business: upgrade to the comfort of club class [as modifier]: club class passengers [as adverb]: he often flies club class...
- Plague germs are notorious for their non-observance of class distinctions. They board aircraft and fly club class to New York.
- Apart from that, though, everything seemed fine. I was at the front of the aircraft, looking after club class.
- And we all know that cabin crew all get free club class travel around the globe.