Blizzard triggers New York City travel ban as airlines cancel thousands of flights

Canceled flight at LaGuardia Airport ahead of massive i=winter storm.

CHARLY TRIBALLEAU / AFP

• A significant winter storm will pummel much of the Northeast from Sunday to Monday.
• Airlines are delaying and canceling thousands of flights as a result.
• Adding to the travel chaos, Homeland Security said it would shut down TSA PreCheck and Global Entry.

The Monday morning commute won't be messy in New York City. It will be nonexistent.

New York City Mayor Zohran...