I find the Adolfo Suárez Madrid-Barajas Airport to be one of the best in the world. And while it is relatively straightforward to go from international arrivals in Terminal T4 to the domestic flights in Terminal 4, for the first-timer the journey can seem daunting. So, this page is a photo guide by which familiarity and expectation can be had.
After a long walk from the Jet Bridge back-and-forth up ramps you will enter the arrival hall. The hallway is very long and most often our flights arrive near to the far end from where you need to go, which is to Flight Connections.
Here, the angled columns are blue. The color transitions, and further on they are green and then yellow.
The signage to Flight connections is clear.
Finally, you will exit the long hallway -- continue to follow the signage for Flight connections.
Although this new wide hallway says you are going to Flight connections, you will actually enter the plaza for Passport Control.
Unless you are an EU resident, you need to go to All passports.
Sometimes the plaza can be quite crowded and the queue is long.
Eventually, you will get to the head of the single queue and you need to go to a queue for one of the stations. Pay attention to which agents are moving people quickly and go to one of those.
Exit Passport Control and go to Baggage and exit. You need next to go to Terminal 4 for domestic flights. You get there by taking a train.
I suggest you take the lift (elevator) as it is a long way down to the lowest level where you will find the train that will take you to Terminal 4.
Sometimes the train plaza can be quite crowded. The areas for the doors are well marked.
I find that one of the middle doors is best for exiting. But if you want to observe, go to the fornt car, which is rightmost.
You exit the train and must go up. I suggest you take the lift (elevator) as it is a long way up to the departures floor of Terminal 4.
Go in the direction of Connections.
This is controlled access.
Go to one of the automatic passageways. The barrier will be closed. You must present your Boarding Pass - this is the one for yur domestic flight!
Place the bar code to the scanner. If all is in good order, the barrier will part.
There are several lanes for security. This is well automated and organized. Remember to put your laptop and electronics in their own bin!
There is lots of shopping and places to get a café or a bite to eat. Departure times and gates are posted about 30 to 40 minutes before the flight's departure time.