Have you ever been late to work even though you didn't intend to? I'm sure most of us have. Whether it is as a result of traffic, flat tire or any other reason, here's an article that tells you how to proceed, how to say it and what to say to your employer and/or co-workers when you're running late to work.
http://www.wikihow.com/Apologize-for-Being-Late-to-Work