If you’re traveling through Baltimore-Washington International Thurgood Marshall Airport, you might want to keep your charging cord, neck pillow and eye mask handy.

A recent review of federal transportation data by an analytics company found that BWI had a higher rate of delayed flights than almost any other airport in the country, behind only Fort Lauderdale-Hollywood International Airport in Florida.

The British firm SOAX reviewed data from April 2023 to March 2024 and found that roughly 29% of flights left BWI at least 15 minutes later than their scheduled departure times. It could be worse: Nearly 32% of Fort Lauderdale’s flights were delayed, SOAX found.

The fault isn’t entirely with BWI, the data shows.

More than half of those delays — or 14,800 flights — were caused by planes arriving late to BWI, according to SOAX.

Jonathan Dean, BWI’s director of communications, said in an email that delays can be caused by a variety of issues, like the weather or air traffic control constraints, and that the airlines would be better suited to explain why some planes don’t leave on time.

“Our airport team is committed to working closely with airline partners, federal officials, and other stakeholders to minimize disruptions and to help ensure the safety and comfort of our passengers,” Dean said.

In a recent interview with The Banner, BWI CEO Ricky Smith touted the airport as “customer-focused.”

“We are considered the easy come, easy go airport,” he said. “That’s our slogan. That’s important to us. As we grow and as our facility gets larger, we don’t want it to become more complicated to use.”

A 90-minute power outage at BWI in July grounded flights and stranded customers. And a global technology outage caused chaos at BWI and other airports, grounding major carriers including United and American.

BWI was named the top North American airport in its size category in the 2020 Airport Service Quality Awards. The airport recently set a record for commercial passengers.

According to the Maryland Department of Transportation, about 27 million passengers traveled through BWI in the most recent fiscal year, making it the busiest airport in the Washington, D.C., area.

In June alone, more than 2.6 million passengers flew through BWI.

Royale Bonds contributed to this article.