Hey, I am Harry and I recently visited the Frontier Airlines Chicago Office. The personnel are friendly and can help with questions about flights, baggage, and tickets. Although wait times can be longer during busy hours, the office is tidy and well-run. The customer service is often prompt and courteous, despite the simple atmosphere. All things considered, it’s a respectable place to handle travel-related problems, but for a more seamless experience, go there when it’s less crowded.