audrey stroud is in los angeles waiting for a flight to virginia. >> it's difficult knowing you might have to sleep on a chair on the floor and i just can't handle that. >> reporter: it will take a few days for service to return to normal. scott, this has been a difficult stretch for the airline industry, but nothing compared to last year when they -- there were 49,000 weather-related cancellations in january. >> pelley: jeff, curious, what does all this cost the economy? >> reporter: well, according to the u.s. travel association, it has cost the economy $230 million in lost passenger activity. >> pelley: jeff, thanks very much. snow did not close the financial markets but some investors wish it had. the dow fell as much as 390 points today before finishing the day with a loss of 291 or one and two-thirds percent. the s&p 500 was off about one and one-third percent. the markets were rattled by weak earnings reports from some corporate giants, including microsoft, caterpillar and procter & gamble, but after the market closed listen to this: apple reported the biggest quarterly profit