JERUSALEM, May 1 (Reuters) - United Airlines on

Wednesday extended the cancellation of its daily flight from

Newark, New Jersey to Tel Aviv in Israel up to May 9, saying it

was completing a safety assessment.

"We continue to closely monitor the situation and will make

decisions on all upcoming flights with a focus on the safety of

our customers and crews," United said in a statement.

United on April 19 cancelled its flights to Israel until May

2 due to security concerns after Israel's apparent strike on

Iran that followed an Iranian missile and drone attack on

Israel.

United was the first U.S. carrier to resume its daily

non-stop service between New York and Tel Aviv on March 2, while

Delta Air Lines ( DAL ) plans to resume flights to Tel Aviv on

June 7.