From ABC News Headquarters in New York City, this is GMA3.

We're going to start with the headwinds facing travelers this summer from higher airfare to fewer flights to the possibility of those long security lines returning.

Whit Johnson is at LaGuardia Airport here in New York with a closer look at the challenges.

Hello, Whit.

Hey, Rebecca, from the warning Ron to funding fights in Washington.

It appears the perfect storm is brewing for a summer of travel headaches.

Experts are warning prepared to pay more for flights and to have fewer options.

Passengers buckling up for a bumpy summer of travel.

United Airlines now warning airfare could go up as much as 20% because of rising fuel costs.

Fuel prices do what they do.

We need 15 to 20% increase in airfares to pass that through.

I think it's probably the new normal for airfares.

Alaska Airlines saying on its earnings call this week that it's going to pay $600 million more

dollars than it expected for fuel in the second quarter. Airlines exist to make money. They have to

pass those costs on to customers and they have to raise the prices for airfare.

Already Americans are paying more. The average domestic airfare a year ago was $303. Now it's up $55 to

$358 and more than 5,000 flights have already been canceled between Delta, United, and American from May

through September. That's about 33 flights a day.

Come on, two lines, two escalators. Let's go, let's go. And this morning, new concerns those long

TSA lines that buried travelers in record wait times last month could reappear. The Department

of Homeland Security, which has been shut

down since mid-February, warning they are running low on emergency funds and may not be able to

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