Flying with a connection means boarding more than one plane to reach your final destination, usually switching aircraft at the same airport. Understanding how this process works avoids a rush and helps you decide how much layover time makes sense when buying your ticket.
In practice, each leg of the connection works as a separate flight, but issued on a single ticket. That changes how you handle baggage, check-in, and, most importantly, what to do if something is delayed along the way.
Step by step
How flight connections work
- 01
You board the first leg normally
When check-in is done as a single process, it already issues the boarding passes for both flights.
- 02
After landing, you follow the connection signs
Most airports have a specific flow for connecting passengers, different from those arriving at their final destination.
- 03
There may be a new security screening
Depending on the airport and whether you're switching areas, you may need to go through the X-ray line again.
- 04
You board the second leg at the new gate
The gate number for the second flight is shown on your boarding pass or on the airport's screens.
Lead time
How much connection time is safe
| Connection type | Recommended layover | Note | Status |
|---|---|---|---|
| Same airline, same terminal | 45 min to 1h | Usually enough because the process is more direct | Comfortable |
| Different airlines or terminals | 1h30 to 2h | You may need to go through check-in and security again | Give yourself extra room |
| Connection with an airport change | 3h or more | You need to travel between different airports, which requires transportation and extra time | Plan carefully |
Baggage
What happens to checked baggage during a connection
When the ticket is issued as a single booking, checked baggage usually goes straight through to your final destination, without you needing to pick it up and check it again along the way. This only changes if you bought the legs separately, as distinct bookings — in that case, it's your responsibility to pick up the bag at the first airport and check it again for the second flight.
Unexpected events
What to do if you miss your connection
If the first flight's delay makes you miss the connection, head to the airline's counter at the connecting airport as soon as you land — many airlines already flag the problem and automatically rebook passengers onto the next available flight. If the connection involved different airlines booked separately, the rebooking process may not be automatic, and it's worth heading straight to the second airline's service counter.
To reduce the risk of complications during a connection
- 1
Avoid very tight connections
A short layover might seem convenient when buying the ticket, but any delay on the first leg puts the entire second flight at risk.
- 2
Prefer buying the legs on the same booking
This makes automatic rebooking easier in case of a delay and avoids having to pick up and check your bag again.
- 3
Keep the essentials in your carry-on
Documents, medication, and a change of clothes help in case checked baggage doesn't keep up with a last-minute reconnection.
- 4
Check whether the connection requires a terminal change
At large airports, going from one terminal to another can take much longer than it looks on the map.
Common questions
Frequently asked questions
Do I need to pick up my baggage during the connection?
Usually not, if both legs were bought together on the same booking — checked baggage goes straight through to your final destination. You only need to pick it up and check it again if the flights were bought separately.
What happens if I miss the connection because the first flight was delayed?
If the delay was caused by the airline responsible for both legs, it usually rebooks the passenger on the next available flight at no extra cost. Head to the service counter as soon as you land.
How much connection time is considered safe?
It depends on the airport and whether it involves a terminal or airline change. In general, between an hour and a half and two hours is a safe margin for most domestic connections.
Can I choose flights with shorter connections in the search?
Yes, by comparing schedules and itineraries you can see the layover time between legs before deciding which ticket to buy.
Do I need to check in again for the second flight?
If the ticket was issued as a single booking, check-in for both legs is usually done at once. With separate bookings, you need to check in for each leg independently.
Who wrote this
Who wrote this
Equipe Viajante Promo
We turn price and availability data into simple guidance to help you save on your next trip.
Denise Tonin
Writes about airport routines, boarding, and the passenger experience.