Maybe they should change this runway’s unlucky number.

Thursday’s skidding landing of Delta Flight 1086 on La Guardia’s Runway 13 came nearly 21 years to the day after another plane slid off the same runway under similarly snowy conditions.

On March 2, 1994, the pilot of Continental Flight 795 canceled its takeoff due to the weather and it skidded off Runway 13.

That plane landed on the same 12-foot-high sea wall as Flight 1086, but its nose touched the edge of Flushing Bay. No one was killed.

But two years earlier, 27 people died after a Cleveland-bound USAir flight veered off Runway 13 in a snowstorm and plunged into the bay.