I am traveling from LAX (Los angels) with final destination Istanbul. I have 1:20 minutes layover in Warsaw. I Was told I need to go through customs. I will have my 10 and 12 year old with me and we are all flying business class on both flights. Is 1 hour and 20 minuets enough time to get through customs and make my flight to Istanbul?
Transfers between non-Schengen countries
On arrival, get off the air bridge or bus and proceed to the terminal, then head towards the security check counter. Check the flight schedule and go to the gate displayed at your flight number.
https://www.lot.com/us/en/explore/about-lot/transit/warsaw/transfer-in-warsaw
Since your are connecting from a non-
schengen country to another non-Schengen country, you will not have to go through immigration or customs. You will have to go through security.
This from the Warsaw Chopin airport website:
Once you have reached the Terminal, check the flight schedule information board for the Gate number of your next flight. Remember, in your case these will be the numbers with the letter N, e.g. Gate 1N. Go to Security Control, then proceed to the Gate assigned to your next flight.