Most travelers pulling into their gate at Boston Logan International Airport probably never notice them. But perched on top of the jet bridges at Gates B32 and C19, two American flags have been flying for a quarter of a century. They mark the spots where, on September 11, 2001, two hijacked flights departed, forever changing the world.

Gate B32 was the last point of contact for American Airlines Flight 11, which crashed into the North Tower of the World Trade Center. Gate C19 was the departure gate for United Airlines Flight 175, which struck the South Tower. The flags were raised shortly after the attacks, a quiet tribute that has become a lasting fixture of the airport landscape.

Dave Ishihara, deputy executive director of aviation for Massport, started working at Logan not long after 9/11. He recalls the deep emotional weight carried by these gates. "This is where American Flight 11 departed on Sept. 11, 2001," he says, standing near the tarmac. The flags, he explains, are more than symbols. They are a daily connection to the tragedy and the resilience that followed.

For the airline crew members, pilots, and ground crews who move through these areas, the flags are a constant presence. "It's important to them because it's a way to remember what happened. It still affects people in personal ways," Ishihara notes. Over the years, the flags have also taken on an educational role. New ground handlers often ask about the flags, sparking conversations about that day. "They get an education," he says. "They're part of the aviation industry now, and it's a way for us never to forget."

The commitment to maintaining these flags is a visible sign of respect. If an employee spots a tear or fray, it is immediately reported, and the flag is replaced without delay. "It's a level of respect that I feel is a little bit uncommon, but is common here," Ishihara observes.

Friday marks the 25th anniversary of the 2001 terrorist attacks. In nearby Abington, a ceremony honored those killed, including a resident. Across New York City, the grief of 9/11 lands differently a quarter-century later. At Logan, a retired flight attendant from Weymouth is making a final push to honor the heroes of that devastating day.

Ishihara reflects on the passage of time. "It's hard to believe it's been 25 years," he says. But for those working at Logan, the flags ensure the memory is never distant. "When we're out here working on the ramp and driving by airside, it's something that you can't not see if you're part of the aviation industry. See it every day, and you remember every day."

The flags may go unnoticed by passengers arriving or departing, but for the people who work beneath them, they are a silent, steadfast memorial. They teach, they remind, and they honor. Twenty-five years on, the two flags still wave at Logan Airport, as enduring as the memory they represent.