--- title: "What Is Minimum Connection Time (MCT)?" description: "What is minimum connection time — the airport-and-airline legal minimum between flights on one ticket, why booking engines respect it, and when you should add your own buffer." url: "https://travelshifu.com/guides/what-is-minimum-connection-time/" category: "Glossary" author: "Priya Nair" date_published: "2026-07-21" date_modified: "2026-07-21" source: "TravelShifu" --- # What Is Minimum Connection Time (MCT)? What is minimum connection time — the airport-and-airline legal minimum between flights on one ticket, why booking engines respect it, and when you should add your own buffer. > Honest disclosure: TravelShifu may earn a commission if you book flights, insurance or claim help through partner links on related pages — at no extra cost to you. Glossary entries are desk-researched definitions for July 2026, not legal or financial advice. ## What is minimum connection time? Minimum connection time (MCT) is the shortest interval an airport and airline pairing officially allows for a same-ticket connection — below which a through itinerary should not be sold. MCT is built from terminal layouts, security re-clearance rules, customs lines and historical taxi times. Domestic-to-domestic minimums are often shorter than international-to-international or international-to-domestic. Booking engines that sell a single ticket are supposed to honour MCT; separate tickets ignore it entirely. Legal minimum is not comfort minimum. A 50-minute international MCT can be lawful yet miserable if your inbound aircraft parks remote and the next gate is in another terminal. Add personal buffer for checked bags, mobility needs, first-time airports and winter irregular operations. Layover tactics: [airport layover survival guide](/guides/airport-layover-survival-guide). Same-ticket connections that meet MCT are usually [protected connections](/guides/what-is-a-protected-connection). Separate tickets are [self-transfers](/guides/what-is-self-transfer) even if the clock looks fine. airport maps and airline MCT exceptions for renovation periods. When an airport publishes different MCT for online versus interline connections, trust the stricter figure if your ticket mixes carriers. Terminal-change connections at large hubs deserve an extra 30–45 minutes beyond the legal floor even when the engine sells the itinerary. Travellers with reduced mobility should request assistance when booking so the airline plans the tighter legal link rather than leaving you to sprint. ## How should travellers use MCT when planning? Treat MCT as a floor, not a target: book at or above it on one ticket for protection, then add time if you need immigration, a terminal change or stress-free walking pace. Example: Heathrow or Schiphol international-to-international might show a tight legal minimum that works when you are airside with hand luggage and both flights on one alliance ticket. The same clock fails if you must collect bags and re-check on a self-transfer. Codeshare quirks: [what is a codeshare](/guides/what-is-codeshare). If a legal connection is missed on one ticket, rebooking duties and possible compensation paths start from [protected connection](/guides/what-is-a-protected-connection) and [flight delay compensation rights](/guides/flight-delay-compensation-rights). care vs cash rules for your route. ## Which terms sit next to minimum connection time? MCT is the rulebook; protected connection and self-transfer decide who pays when the clock loses; stopover versus layover describes longer breaks. See [protected connection](/guides/what-is-a-protected-connection), [self-transfer](/guides/what-is-self-transfer) and [stopover vs layover](/guides/what-is-stopover-vs-layover). - [Protected connection](/guides/what-is-a-protected-connection) — airline responsibility on one ticket - [Self-transfer](/guides/what-is-self-transfer) — your responsibility on two tickets - [Stopover vs layover](/guides/what-is-stopover-vs-layover) — short vs long breaks ## How much buffer should you add on top of minimum connection time? Add at least 30–60 minutes beyond the published minimum for international-to-domestic connections, 60–90 if you must change terminals, clear immigration or travel in winter — legal connections are built for ideal days, not for de-icing queues. Minimum connection time is a booking-system legality, not a comfort target. Airports publish values as low as 25–45 minutes for domestic same-terminal links and 60–120 minutes for international arrivals requiring immigration and baggage re-check. The airline will sell you any itinerary that meets the floor, and on a clean day it works — but the floor assumes your inbound lands on time, parks close, and the next gate is nearby. Build your own margin based on the friction points. Immigration and customs at major US hubs can eat 45–90 minutes at peak; terminal changes at airports like Paris CDG or London Heathrow add 20–40; winter operations and afternoon thunderstorm seasons stretch everything. A personal rule many frequent flyers use: never accept under two hours when passports or bag re-checks are involved, and three when the connection is the last flight of the day. The good news is that a legal connection on one ticket is a [protected connection](/guides/what-is-a-protected-connection) — if you miss it, the airline must rebook you. The bad news is “rebooked” can mean tomorrow, which is why the buffer matters more than the protection. Our [airport layover survival guide](/guides/airport-layover-survival-guide) covers how to use longer connections well instead of fearing them. Finally, distinguish MCT from the separate-ticket world. Minimums only protect you when both flights share one booking reference; the moment you stitch two tickets together, you are in [self-transfer](/guides/what-is-self-transfer) territory where no minimum applies and no airline owes you a rebooking. In that case, multiply every buffer suggested here by two. --- Canonical HTML: https://travelshifu.com/guides/what-is-minimum-connection-time/ Last modified: 2026-07-21