Terminals play a very important role when it comes to a flight, and this is why having the right knowledge of terminals is a must, especially when traveling for the first time. If you have booked your flight, and your arrival is at Delhi Airport or Indira Gandhi International Airport, then it will be at T2. But there is one more thing which one has to keep in mind that sometimes, due to weather or air traffic, airports have to change the terminal, so it would be advisable for the passengers to keep checking the flight status or be attentive towards the announcements so that you will be aware of the updates,
Terminal 3 at Delhi Airport operates both domestic and international flights. If you want to learn which airlines use terminal 3, these are Air India, IndiGo, Air India Express, Vistara, and SpiceJet. Some of these airlines also use the other two terminals, but only for domestic flight operations. Terminal 3 is used only for international flight operations.
In case you are willing to purchase a domestic flight and wondering from which terminal you will have to reach for the boarding, then at the Delhi airport, for operating domestic flights, the airport uses terminals 1 and 2. However, some domestic flights also use T3 at the airport, but not regularly. Being a vigilant traveler, you should check which terminal your flight will be departing from and then reach at least 1-2 hours before; the security screening and check-in may take time.
The layover time is the time that you will be taking to change from one flight to your second flight, and it may vary depending on which flight you are lying over. If you are changing from a domestic flight to a domestic flight, then it will take around 45 minutes for the layover at IGI. Similarly,
Suppose your flight terminal has been changed before it departed from T1, but now it is changed to T2, and you don't know how to change the terminals at Delhi airport. Well, to change the terminals, a complimentary bus service can be available at the airport that takes the passengers adn transfers them to the terminals they want to go to. These buses are frequent and run every 20 minutes. Alternatively, there are metro services that travelers can use.
Hopefully, you have gone through this page and learned about Delhi airport's terminal, which airlines fly, and which terminal is domestic and which one is international. In case there is you are facing issues in finding yourr right terminal, you can reach out to the support desk at every terminal for passenger help.