United Airlines to introduce tiered fare categories for premium cabins - Reuters

United Airlines to introduce tiered fare categories for premium cabins  ReutersUnited to Offer No-Frills Fares in Its Premium Cabins  The New York TimesUnited to offer cheaper First Class fares — but there’s a potentially costly catch  New York PostUnited unveils basic Polaris business fare in premium cabin overhaul  CNBCUnited is rolling out 'basic business class' to make premium flying cheaper. Here's how it will work.  Business Insider