Which airports have longest customs waits?

U.S. airports with long customs waits: how to plan around it

Several travel discussions in the provided list focus on airport-to-airport differences in customs and immigration processing in the U.S. The overall message for travelers is that delays aren’t uniform: some airports routinely see longer waits, while others can be much quicker depending on operational factors and screening arrangements.

What the travel items indicate

• Wait times vary by airport. Some arrivals consistently run slow, with reports of waits stretching beyond two hours at certain locations.
• Schedules drive congestion. Even when an airport isn’t “always slow,” busy arrival periods can create line build-ups.
• Your itinerary matters. If your plan includes a tight connection, customs time becomes the critical constraint—not just your boarding/immigration speed.

How travelers should adjust

• Use airport-specific expectations when deciding whether to book a short connection.
• Build extra buffer if your itinerary hinges on passing customs and immigration smoothly.
• Consider whether you will need additional security screening after immigration, since that can add more time pressure.

The stories don’t list a complete ranking of airports and don’t provide a single consistent number across all locations. But they do reinforce a clear planning principle: if you’re transiting through the U.S., especially with a short layover, assume customs/immigration can be the bottleneck and verify your airport’s current patterns.

If you tell me your arrival airport plus connection airport and layover length, I can help you think through whether the window is likely comfortable or risky based on how these delays typically affect connections.