Nearly one in five flights across the U.S. was delayed in 2024, according to federal data from the Bureau of Transportation Statistics. But some airports are far worse than others — and travelers flying through certain hubs face a near coin-flip chance of a late arrival. A Rightway Parking analysis of 2024 BTS data reveals which airports should come with a delay warning.

Miami Ranks Near the Top

For Florida travelers, Miami International stands out for all the wrong reasons. In Rightway Parking’s review of 2024 delay data, MIA placed No. 3 among the most delay-prone airports highlighted, behind only Dallas/Fort Worth and Newark. The airport was also flagged as a top-10 airport for delays, reinforcing what frequent flyers already suspect: Miami is one of the hardest places in the country to count on a smooth, on-time trip.

That ranking draws from public aviation data and travel-industry reporting, including the Bureau of Transportation Statistics on-time database, which tracks delayed, canceled, and diverted domestic flights reported by large U.S. carriers. 

The Summer Delay Number Is the Real Warning Sign

The stat that makes Miami especially hard to ignore is its 26.6-minute average summer delay. Among the airports highlighted in the analysis, that was the longest average summer delay attached to any of them.

That number matters because summer is when airports like MIA are under extra pressure from family vacations, international travel, cruise traffic, and storm-season disruptions. A half-hour delay may not sound catastrophic on paper, but in real life, it can mean missed pickups, blown connections and a long start to what was supposed to be a simple travel day. Supporting material for the analysis also referenced the AirHelp 2024 summer disruption report, which examined seasonal flight disruption patterns. 

It’s Not Just Delays

Miami’s issue is not limited to flights running late. An InsureMyTrip analysis of 2024 airport delays and cancellations found that Miami International ranked in the top 10 for both delays and cancellations. That is an important distinction, because an airport can be frustratingly late without being especially cancellation-prone. Miami showed up on both lists.

For travelers, that changes the calculation. A delay is inconvenient. A cancellation can wreck hotel check-ins, cruise departures, rental-car reservations, and return schedules. When an airport appears in both categories, the odds of travel headaches rise well before passengers even reach the gate. 

Why This Matters for Florida Travelers

Miami is one of the country’s busiest gateways, especially for international travelers and South Florida residents heading out on business or vacation. That makes its ranking more than just a data point. It suggests that travelers moving through MIA should expect less margin for error than they would at more reliable airports.

Building in extra time is the obvious move. So is being careful with tight layovers. Ground planning matters, too. Travelers trying to remove at least one variable before heading to the terminal may want to arrange off-site parking near Miami International Airport ahead of time rather than making last-minute parking decisions on an already stressful travel day. 

A Tougher Airport Than Many Realize

Miami’s placement behind Dallas/Fort Worth and Newark also says something important about the national picture. This is not a case of one bad month or a few isolated stormy weekends. MIA is showing up in the same conversation as some of the country’s most disruption-prone large hubs.

That makes Miami a useful reminder that airport choice can shape a trip almost as much as airline choice. Travelers often compare fares first and think about delays later. But when an airport repeatedly lands near the top of the late-flight rankings, the hidden cost is not just measured in minutes. It shows up in missed time, added stress, and the need to plan around disruption before the trip even begins.

Wrap-Up

Miami International has become the kind of airport where travelers are wise to expect friction. The combination of a top-tier delay ranking, a 26.6-minute average summer delay, and a place among the airports with the most delays and cancellations makes it hard to dismiss as bad luck. For South Florida flyers, the lesson is simple: when MIA is part of the itinerary, an extra buffer is no longer optional. It is part of the travel plan.