The Delta Air Lines crash at Toronto Pearson International Airport on Monday has become the latest incident in a concerning trend for travelers and regulators alike. The series of flight accidents this year has led to widespread anxiety and sparked fervent criticism towards U.S. aviation regulators.

Here’s a look at three major U.S.-based accidents that have raised alarms:

**1. Collision near Washington:** On January 29, a horrifying collision occurred between an American Airlines jet and an Army helicopter near Reagan National Airport. The crash, resulting in a fireball, left all 67 individuals on board dead, marking it as the deadliest air accident in two decades. Investigators are now questioning air traffic control protocols and flight paths.

**2. Medical jet tragedy in Philadelphia:** Just two days later, on January 31, a leasing medical jet crashed in Philadelphia shortly after takeoff, killing six passengers and one bystander in the ensuing flames. The plane was carrying a child returning home after treatment, alongside her mother and medical personnel.

**3. Alaskan plane disappearance:** The worrying trends continued on February 6, when a small passenger plane disappeared en route to Nome, Alaska, with 10 people on board. Following an extensive search, wreckage was located, and investigations revealed potential miscommunications regarding runway availability prior to the crash.

As investigations unfold, the aviation community and concerned citizens alike are eagerly awaiting conclusions and potential regulations to enhance safety.