Minimum Connection Time: How Much Layover You Actually Need (and What Happens If You Miss It)
Rules on this page last verified 2026-07-09. Airlines change things; we re-check and date it.
Minimum connection time (MCT) is not a recommendation, it's the floor an airport and airline set for a connection to be sellable at all. It also is not a safety margin: it assumes normal conditions, no delay, no queue spike. The gap between the MCT floor and a buffer you can actually trust is where most "I nearly missed it" stories live.
The short version
| What MCT is | The published minimum time an airport/airline will sell between two connecting flights |
|---|---|
| Typical international-to-international MCT | Around 90 minutes at most major hubs (Amsterdam is a notable outlier at roughly 50 minutes) [source: IATA/OAG] |
| Same-ticket connection, you miss it | Airline rebooks you free on the next available flight; duty-of-care (meals, hotel) kicks in after set wait thresholds on regulated routes |
| Separate tickets (self-transfer), you miss it | No automatic rebooking, no compensation; you're a no-show on ticket two and may have to buy a new fare |
| Realistic buffer beyond MCT | Add 1-3 hours for domestic-international mixes, more for a terminal change or an immigration-heavy hub |
What MCT actually is
Every airport publishes a minimum connecting time for different connection types (domestic-to-domestic, domestic-to-international, international-to-international), and IATA aggregates these into the Station Standard Minimum Connecting Time reference used industry-wide, covering over 400 of the world's most connected airports. Airlines will not sell you a connection shorter than this number. But "sellable" and "comfortable" are different claims: MCT accounts for aircraft taxi time, terminal transit, and standard security screening, not a delayed inbound flight, a slow immigration line, or a gate change to the far end of a terminal.
International-to-international connections sit around 90 minutes at most major hubs, the widely cited default. A few hubs, Amsterdam among them, run tighter, closer to 50 minutes, because of airside layout. That number is the floor, not the plan.
Same-ticket protection vs. the self-transfer trap
This is the single biggest factor in what happens if a connection breaks.
One ticket, one PNR, bag checked through: the airline that sold you the itinerary owns the risk. If your first flight is delayed and you miss the connection, they are obligated to put you on the next available flight to your destination at no extra cost. On regulated routes (EU-departing flights fall under EU261, for instance), missing a connection due to airline-caused delay can also trigger duty-of-care: free meals and communication after roughly a 2-hour wait, and a hotel if the delay runs overnight. Compensation up to EUR 600 can apply for arrival delays over 3 hours at the final destination, though this is specific to EU-regulated flights, not a universal rule, and exceptions exist (delays caused by security queues or you missing your own boarding cutoff aren't covered).
Two separate tickets, self-transfer: you are the connection. If flight one runs late, flight two's airline generally treats you as a no-show with zero obligation to rebook you or refund you. You collect your own bag, clear your own immigration, and check in fresh for flight two. If you miss it, you may be buying a brand-new fare at the airport, on the spot. This is the trade you make for the (often real) savings of piecing together cheaper separate fares: you take on 100% of the connection risk that the airline used to absorb.
Realistic buffers by scenario
These are on top of the airport's published MCT, not instead of it.
| Scenario | Add on top of MCT |
|---|---|
| Same-ticket, same terminal, no immigration | Minimal extra; MCT itself already has margin built in |
| Domestic-to-international or international-to-domestic, same airline | 1-2 hours |
| Terminal change required (shuttle, train, or long walk) | 1-2 hours |
| Any connection through a hub requiring an immigration/customs clearance | 2-3 hours, more at hubs known for slow lines |
| Self-transfer, separate tickets, any international leg | 3-6 hours, by general guidance for self-connections |
| First trip through an unfamiliar hub, any connection | Add 1 extra hour purely for navigation and signage uncertainty |
What the airline owes you when a same-ticket connection breaks
- Rebooking on the next available flight, at no additional cost, is close to universal on single-ticket itineraries when the airline caused the miss.
- Duty of care (meals, phone/internet access, hotel for overnight delays, transport to and from the hotel) applies on regulated routes once wait thresholds are crossed, commonly cited around 2+ hours for meals and overnight for hotel accommodation.
- Cash compensation is route- and jurisdiction-specific. EU261 can apply up to EUR 600 depending on distance and delay length for EU-regulated flights. There is no universal global equivalent; check what regulatory scheme (if any) covers your specific itinerary before assuming a payout.
- None of this applies on a self-transfer. No single carrier owns your itinerary, so no single carrier owes you rebooking or care.
Where people screw this up
- Booking a self-transfer to save money on a trip with a hard arrival deadline (a cruise departure, an event, a one-way rental car pickup), then discovering the second airline has zero obligation if flight one runs late.
- Trusting the airport's published MCT as if it includes a delay buffer. It doesn't. It's the floor for a normal day.
- Underestimating immigration-heavy hubs. A connection that's "fine" at a quiet regional airport can be genuinely tight at a hub processing several wide-body arrivals at once.
- Not knowing which regulatory regime (if any) covers their flight. Assuming EU261-style compensation applies to a non-EU-regulated itinerary leads to disappointment, not a payout.
FAQ
How much time do I need for a connection at a big international hub? Budget at least the published MCT (often around 90 minutes for international-to-international) plus 1-3 hours of real buffer, more if immigration or a terminal change is involved.
What happens if I miss my connection on a single ticket? The airline rebooks you on the next available flight at no extra cost, and on regulated routes, may owe you meals, communication, and a hotel if you're stuck overnight.
What happens if I miss a self-transfer connection? Nothing is owed to you by default. The second ticket may be cancelled as a no-show, and you may need to buy a new fare.
Is buying separate tickets ever worth the missed-connection risk? Sometimes, when the savings are large and your schedule has slack (no hard downstream deadline) or you carry travel insurance that explicitly covers self-transfer misconnections. Read the policy for that exact clause; general trip insurance doesn't always include it.
Does MCT account for delays? No. It's calculated for normal operating conditions: taxi time, terminal transit, standard security. A delayed inbound flight or a queue spike is exactly what eats your MCT margin.
Next time, plan this on purpose
A tight connection you're sweating through security for is a problem you can design out of your next trip. Book single-ticket itineraries with real buffer, and better yet, stretch a connection you were dreading into an intentional stopover instead of a race. See layover vs. stopover for how that 24-hour line works in your favor, or the Turkish Airlines Istanbul stopover for a hub that turns a long connection into a free hotel instead of a risk.