Which airline for travelling to US from Canada?

Hello, guys. I am currently in Canada. I will have to go to USA to arrange business. I am new at this part of the world, so I would like to ask a question. Which airline should I use for this travel? I would appreciate all your answers. Thanks in advance.

Hello, there. Well, you haven’t mentioned which town you will arrive at. But, never mind. USA and Canada are excellently connected with air traffic. I personally like Delta Airlines. Their main airport is in Atlanta. You can also try with Continental Airlines, United Airlines, US Airways, etc. Air Canada is one of the members of Star Alliance together with United Airlines. I hope I’ve helped you. Safe flight!