Why flights get delayed at MIA
Afternoon thunderstorms
Summer storms bring lightning stops on the ramp and slower arrival rates most afternoons.
Florida and Caribbean airspace
Routes over Florida and the Caribbean are heavily used and often metered by air traffic control.
Hurricane season
Tropical storms between June and November can cause multi-day disruption across American's Latin America network.
Flying through MIA soon? How to prepare
- Time it well.
- Know your airline's commitments. Check what American Airlines or your own airline has promised for delays and cancellations in our airline policy guides, or see how to check it yourself.
- Line up a backup. Note the next couple of flights on your route and the alternate airports below before you leave home.
- Connecting here? Keep both flights on one ticket and choose a layover with room to spare above the minimum connection time.
The full list is in our pre-trip checklist.
Airlines most affected
Miami is a hub or major base for American Airlines. When the airport slows down, that airline has the most flights to re-plan, but it also has the most later departures to rebook you onto. What you are offered during a delay depends on the carrier.
Check the live status
- The FAA shows current ground stops and delay programs for MIA at nasstatus.faa.gov.
- Departure boards, terminal and security information are on the official Miami website.
If your flight is delayed or cancelled at MIA
- Find the real cause. Ask the gate agent, then compare it with the FAA status above. The cause decides what the airline owes you: see is it really a weather delay?
- Know your refund right. If the flight is cancelled, or delayed three hours or more (six for international), you can decline to travel and get your money back.
- Line up alternatives first. Look at later flights, other airlines and the alternate airports below before you reach the desk.
- Ask for what the airline has committed to. For delays within its control, that usually means a meal after three hours and a hotel overnight. Here is what to say.
The full walkthrough is in what to do when your flight is delayed.
Alternate airports near MIA
If flights out of Miami are sold out or cancelled, these airports are within a realistic drive. Distances are approximate road miles. See how to switch airports without losing your booking.
| Airport | Code | Distance |
|---|---|---|
| Fort Lauderdale-Hollywood | FLL | about 28 miles |
| Palm Beach | PBI | about 70 miles |