I have a choice of flying:
SWISS ORD-ZRH ZRH-TLV
Lufthansa ORD-FRA FRA-TLV
Air Canada ORD-YYZ YYZ-TLV
United ORD-EWR EWR-TLV
Austrian ORD-VIE VIE-TLV
British Airways ORD-LHR LHR-TLV
Turkish Airways ORD-IST IST-TLV
Air France ORD-CDG CDG-TLV
All of these are within 100 dollars of each other but I'm not sure which one is the best i will be flying economy class just want to know which one is the best.