Connecting at Miami International (MIA): concourses, customs and how much time you need

An hour can work at Miami for a domestic connection when your first flight is on time and you stay inside security, but it's tight after an international arrival, when you clear customs, collect and recheck your bags and are screened again. The airport says to allow 15 minutes to move between the North and South Terminals, and walking the full length of Concourse D, which is a mile long, takes at least 30 minutes (a train inside the concourse arrives about every three minutes). The airport doesn't publish a minimum connection time.

Is 1 hour enough at MIA?

It depends on where you land and where you leave from:

• Same concourse, domestic to domestic: usually fine. In Concourse D, take the train if your gates are at opposite ends.
• Different terminal: budget at least the airport's 15 minutes for the walk between terminals, plus time for a security line if your route leaves the secure area.
• International to domestic: passport control, bags, customs, recheck and security again. The airport says the time for federal inspection varies. An hour leaves little margin.

On one ticket, the airline only sells connections that meet its own minimum at Miami and has to rebook you if the first flight is late. On separate tickets, nobody checks your layover, so leave far more time. Read is a 1-hour layover enough?

Are the concourses connected? Can you walk between them?

MIA has three terminals:

• North Terminal: Concourse D, with its own train.
• Central Terminal: Concourses E, F and G.
• South Terminal: Concourses H and J.

Moving walkways on Level 3 link all three terminals. Not every concourse is joined to the next one inside security, though: the airport's own building plans include a new post-security corridor between Concourses E and F, due to start in 2028 and finish in 2031. The airport doesn't publish a list of which routes stay inside security, so follow the connection signs, and ask airline staff when you get off the plane if you're unsure. If your route takes you out of the secure area, you'll go through a TSA checkpoint again, and Miami's checkpoints don't all open around the clock.

Changing terminals at MIA

The Concourse D train stations are reached by the concourse elevators, and each station has a domestic and an international lobby, so check you're on the right side.

Arriving from another country (international to domestic)

Miami has three immigration and customs areas, in Concourses D, E and J. If you arrive at Concourse F, a courtesy trolley takes you to the Concourse D arrivals hall. Then:

1. Clear passport control.
2. Collect your checked bags in the baggage reclaim area. If you're connecting to another US city, you pick them up before customs.
3. Clear customs. You come out on level 1 in the North and Central Terminals, or on level 3 in the South Terminal, where an elevator to level 2 takes you toward other airlines.
4. Recheck your bags for your next flight.
5. Go through TSA security and walk to your gate.

MIA takes part in CBP's Mobile Passport Control, which gives eligible travelers (US citizens, US permanent residents, Canadian visitors and returning Visa Waiver Program travelers with an approved ESTA) a dedicated line at passport control. If you were precleared at your departure airport abroad, you don't clear again in Miami. Read international to domestic connections.

Domestic to international

The airport's advice is to contact your airline to confirm your bags are checked to your final destination. On one ticket they usually are. On separate tickets you'll collect them, check in again and go back through security. The same goes for international-to-international connections: ask your airline whether your bags go straight through or have to be collected before customs.

What's changing at MIA in 2026 and 2027

• Concourse F: the TSA checkpoint is moving to the second floor, with completion planned for spring 2027.
• F to H connector: work on a third-level corridor for international arrivals between Concourses F and H is due to start in fall 2026 and finish in 2029.
• Later projects: a new Concourse K in the South Terminal (2029) and the Central Terminal rebuild with the E to F post-security corridor (work from 2028, finishing in 2031).

We'll check these again in March 2027. During construction, checkpoints and walking routes can change, so follow the signs on the day.

Customs wait times

From October 2025 to September 2026, passengers arriving from abroad at MIA waited 21 minutes on average to clear passport control, according to CBP: 13 minutes for US citizens and 28 minutes for visitors. 4.8% waited more than an hour. The slowest arrival hour was 11 a.m.–12 p.m., averaging 24 minutes. These times don't include collecting bags or walking to your next gate. See US customs wait times by airport.

On-time record

From September 2025 to August 2026, 76.0% of scheduled arrivals at Miami (MIA) reached the gate on time, rank 13 of the 30 busiest US airports. 73.1% of departures left on time and 1.6% of departures were canceled. The largest share of delay minutes came from late-arriving aircraft. See the full US airport on-time ranking.

Follow the first flight

Add both flights to FlyingOver before you travel. You'll follow the first flight offline and see its estimated arrival, and with Premium, connection guidance shows whether your layover looks comfortable, whether you need to keep moving or whether you should go directly to the gate.