Long lines, delays at London's St. Pancras station

Officials hope the Olympics "don't disrupt Londoners more than we have to," Hendy said, but some locals may feel like second-class citizens.

Dedicated Olympic traffic lanes that take effect at 6 a.m. Wednesday already have left some Londoners unhappy. Drivers of the city's famous black cabs demonstrated Monday over the fact that they can't use the special Olympic lanes.

But it's not all bad news. Travel is free for ticket-holders to their Olympic events.

Wireless Internet is also now available inside some London subway stations for the first time. If you're stuck in those spots, at least you could keep track of the travel chaos online.

Associated Press Writer Danica Kirka contributed to this story.

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