Major U.S. carriers offer no-frills airfares on domestic flights, but some airlines may be considering bare-bones fares for international routes to respond to stiff competition from foreign rivals.
Delta Air Lines, the nation’s second-largest carrier, is considering ultra-cheap fares on transatlantic routes to compete with rivals such as low-cost Norwegian Air International, a subsidiary of Norway-based Norwegian Air Shuttle, one of Europe’s biggest low-cost carriers.

In an earnings conference call this week, Delta executives said revenue from transatlantic flights was down, partly because of competition from foreign low-cost carriers.
The executives didn’t name the carriers, but Delta and several other major U.S. carriers have petitioned the U.S. Department of Transportation to halt Norwegian from flying to the United States from a base in Ireland, claiming Norwegian is competing unfairly by skirting labor laws. Norwegian rejects such charges. The DOT has yet to issue a final decision on the matter.