Was looking at flights from NYC <--> Amsterdam, and matrix shows flights in E class. Is E class on a transatlantic flight basic economy as well? Does it matter if the flight is on KLM metal? Also, on the outbound, there's a JFK->BOS segment. Even of the transatlantic segment is regular economy, would the domestic portion follow the basic economy restrictions?
EDIT- Appearently, Delta has launched new Basic Economy to Europe on December 6th, for travel after 4/10/18. Does anyone know if the Delta baggage restrictions apply for Eurpoe if I have a Delta card?