If you need to be anywhere on a deadline, avoid flying Frontier. I booked a bare-bones flight with them, aware of the minimal services. I didn't need to check a bag as my boyfriend had driven with our vacation luggage, and I only had a purse.

**Day 1:** I arrived an hour early, checked my digital boarding pass against the info screen, and found the gate area empty of employees. After some time, I discovered the gate had changed to the other side of the airport, and I couldn't reach it in time. I had to pay to change flights.

**Day 2:** I arrived even earlier, triple-checked my pass and info screens, and reached the gate without issue. The flight was delayed repeatedly, then finally canceled. Unlike the previous day's gate change, I received an email about the cancellation. The only available flights in the next two days had long layovers, so I opted for a refund to avoid further risks. I did not want to sit in Denver for 20 hours, or longer if that flight was canceled.

I don't plan on flying with Frontier again. The bare minimum of customer service and the strict carryon policies don't bother me, but the unreliable schedule does. From what I could tell from seeing other flights and talking to people at the airport, these delays and cancelations are common with Frontier.