Massive crowds overwhelmed St. Louis Lambert International Airport during the weekend, leading to long lines, missed flights, and hours-long waits as thousands of travelers departed following the conclusion of a major religious conference.

Travelers flying out of Lambert Airport on Sunday faced significant delays and frustration as long lines spilled out of Terminal 2 and onto the street, a result of an influx of passengers leaving a large Seventh-day Adventist conference that wrapped up the day before.

Airport spokesman Roger Lotz said the airport experienced one of its busiest days of the year Sunday, with hundreds of people waiting outside the terminal for hours. While lines returned on Monday, Lotz noted that conditions had improved.

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