American Airlines stock falls after snubbing United merger. That’s not the only reason.

U.S. airline stocks were all around 2% lower ahead of the open Monday.

Another airline shuts down for summer, cancels all flights

While local airlines such as Emirates and Etihad have been running some flights into and out of Dubai, major international carriers have canceled all service into the United Arab Emirates and several nearby countries throughout the summer as the ripple effects of the war set off by the U.