US airlines expecting big spring rebound

A brutal winter for U.S. airlines is finally expected to warm up and deliver record passenger levels this spring according to the latest industry forecast.

Airlines for America, an industry trade group that represents the interests of nine domestic carriers, estimates more than 129 million people (2.1 million per day) will take domestic flights in March and April.

(Read more: Air travel's $6B winter of discontent)

Another 17.1 million people are expected to board international flights with U.S. airlines this month and next.

De-icing equipment and snow moving equipment operate outside the Central Terminal at LaGuardia Airport in Queens, New York
Daniel Acker | Bloomberg | Getty Images

"We attribute the increase in spring air travel to rising U.S. household net worth, an improving economy, and the affordability of air travel," said John Heimlich, Airlines for America Vice President and Chief Economist.

If the forecasts hold up, it will be a much welcomed rebound after a terrible start to the year for airlines crippled by a series of snow storms and bitter cold.

So far this year, more than 78,000 flights have been cancelled according to

Those cancellations have cost airlines tens of millions of dollars.

(Read more: New Delta mileage plan may end 'hacking')

Best profits in years

2013: $7.4 Billion

2012: $132 Million

2011: $527 Million

2010: $2.24 Billion

2009: -$2.9 Billion

2008: -$24.5 Billion

Source: Airlines for America

Packed planes push 2013 profits

The rough winter weather which started in December barely put a dent in one of the most profitable years ever for U.S. airlines.

Airline sector flying high
Airline sector flying high

In 2013, domestic carriers made a profit of $7.4 Billion, excluding special charges.

(Read more: American Airlines drop bereavement fares)

What fueled it was in large part the moderate price of jet fuel.

Meanwhile, the percentage of seats filled on airplanes stayed relatively high and airlines continued to collect several billion dollars in ancillary fees.

—By CNBC's Phil LeBeau. Follow him on Twitter @LeBeauCarNews.

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