(CNN) Did Kuwait Airways just scrap an entire flight service to avoid carrying Israeli passengers?

The airline has this week pulled its connection between New York's JFK airport and London Heathrow after U.S. authorities threatened legal action over alleged discrimination.

The U.S. Department of Transportation (DOT) in September warned the Kuwaiti carrier that it had "unlawfully discriminated" against a passenger using an Israeli passport by refusing to sell him a ticket.

It sent a letter giving the airline 15 days to outline how it would in the future comply with anti-discrimination laws.

Kuwait Airways response, according to the DOT, appears to have been to drop its London-New York route.

Read More