Do I need to go through security at Newark airport after flying in from NC before boarding international flight to Ireland?

I will be flying from Asheville, NC to Newark with a 2 1/2 hours layover before boarding United airlines to Dublin, Ireland.
Will I need to go through security again? I will not have checked baggage. I am an older woman with a bit of difficulty walking. What is the easiest way to get from one terminal to another?
Best Answer
You can use the AirTrain to connect between the airline terminals free of charge at Newark Airport but you will have to go through security again unlike most airports in the USA if you are changing terminal in Newark. If you are in the same terminal you can walk to your gate or ask for assistance.
2 and a half hours should be enough time to get to another terminal and through security again. You can always ask for assistance to help as you have difficulty walking.
Will you be flying from Dublin which is in Republic of Ireland to the UK? If so you will have to go through Irish Immigration and security before flying to the UK, when you land in the UK there will be no immigration as the UK and Republic of Ireland are part of the Common Travel Area.
PS if you are actually only going to Dublin in the Republic of Ireland and not the UK do not call Ireland part of the UK as it may offend some Irish people.
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