Among Newark's cancelled flights, 13 were heading to or arriving from the Luis Muñoz Marín International Airport in Puerto Rico, which is the Caribbean’s biggest hub. Four flights to Queen Beatrix International Airport in Aruba were also grounded, as were four incoming flights.

Travelers are feeling the impact of the ongoing situation in Venezuela, leading to delays and concerns for those flying to nearby regions.

The FAA reopened Eastern Caribbean airspace Sunday as airlines restored service, added flights and larger planes and issued waivers after mass cancellations.

Secretary Sean Duffy said restrictions on air travel would expire at midnight and airlines "will update their schedules quickly."

Transportation Secretary Sean Duffy announced overnight that the Federal Aviation Administration (FAA) would allow airlines to resume flights in the Caribbean after flights were canceled amid U.S. strikes in Venezuela on Saturday.

Airlines resume Caribbean service after FAA lifts airspace restrictions following US Venezuela operation, scramble to add capacity for stranded passengers

A recording of a flight radar shows no planes flying over Venezuela after the US carried out strikes in Caracas, the country's capital, on January 3.

Airlines halted Caribbean service through at least 1 a.m. Sunday after U.S. strikes in Venezuela heightened regional security concerns.

Major U.S. airlines canceled dozens of flights to the Caribbean, including Puerto Rico, after the Trump administration launched a “large-scale” attack on Venezuela. The move came after

A WSJ poll finds voters think Trump is giving priority to foreign issues over the economy.