Connecting flights can save money but add complexity. A few simple rules make the difference between a smooth transfer and a missed connection nightmare.
Connecting flights are a trade-off: they usually cost less than direct routes, but they add time, complexity, and the risk of things going wrong. Managing that risk comes down to a few rules that experienced travellers follow automatically.
Always book connections on a single itinerary when possible. When you book through an airline or a travel agent as one ticket, the airline is responsible for rebooking you if you miss a connection due to a delay on their end. If you book two separate tickets — even on the same airline — you're on your own, which can mean rebooking fees, missed hotels, and serious stress.
Understand minimum connection times. Airlines have minimum connection times for each airport, and they won't let you book an itinerary that violates them on a single ticket. But "minimum" means tight. If your incoming flight is at the gate on time and you only need to walk to the next gate, a 45-minute connection might work. If it's an international-to-domestic transfer requiring customs, immigration, baggage reclaim, and a security re-screen, 90 minutes is the absolute floor and two hours is comfortable.
Some airports are notoriously difficult to connect through. Dallas-Fort Worth, Chicago O'Hare, and Atlanta Hartsfield-Jackson in the US; Heathrow in London; Charles de Gaulle in Paris — all are large, often delayed, and logistically demanding. If your itinerary has you connecting through any of these on a tight schedule, consider whether the route is worth the risk.
Check where your arrival and departure gates are. Many major airports have multiple terminals with significant distance between them. At Heathrow, a transfer between Terminal 3 and Terminal 5 involves a transit bus and can take 30–45 minutes even before security. Knowing this in advance prevents panic.
Have a backup plan ready. Before you depart, check what the next available flight is to your destination if you miss your connection. If there's only one per day, your risk tolerance should be lower. If there are flights every two hours, a missed connection is inconvenient rather than catastrophic.
If your first flight is delayed and you see you're going to miss your connection, contact the airline before you land — via app, phone, or Twitter/X. Getting into the rebooking queue early can mean the difference between getting on the next flight and waiting until the following morning.
Always book connections on a single itinerary when possible. When you book through an airline or a travel agent as one ticket, the airline is responsible for rebooking you if you miss a connection due to a delay on their end. If you book two separate tickets — even on the same airline — you're on your own, which can mean rebooking fees, missed hotels, and serious stress.
Understand minimum connection times. Airlines have minimum connection times for each airport, and they won't let you book an itinerary that violates them on a single ticket. But "minimum" means tight. If your incoming flight is at the gate on time and you only need to walk to the next gate, a 45-minute connection might work. If it's an international-to-domestic transfer requiring customs, immigration, baggage reclaim, and a security re-screen, 90 minutes is the absolute floor and two hours is comfortable.
Some airports are notoriously difficult to connect through. Dallas-Fort Worth, Chicago O'Hare, and Atlanta Hartsfield-Jackson in the US; Heathrow in London; Charles de Gaulle in Paris — all are large, often delayed, and logistically demanding. If your itinerary has you connecting through any of these on a tight schedule, consider whether the route is worth the risk.
Check where your arrival and departure gates are. Many major airports have multiple terminals with significant distance between them. At Heathrow, a transfer between Terminal 3 and Terminal 5 involves a transit bus and can take 30–45 minutes even before security. Knowing this in advance prevents panic.
Have a backup plan ready. Before you depart, check what the next available flight is to your destination if you miss your connection. If there's only one per day, your risk tolerance should be lower. If there are flights every two hours, a missed connection is inconvenient rather than catastrophic.
If your first flight is delayed and you see you're going to miss your connection, contact the airline before you land — via app, phone, or Twitter/X. Getting into the rebooking queue early can mean the difference between getting on the next flight and waiting until the following morning.
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