NEW YORK (AP) — A record number of travelers are expected to take to the skies this summer thanks to a rebounding economy.

Airlines for America, the industry’s trade and lobbying group predicts U.S. airlines will carry 222 million passengers between June 1 and Aug. 31, topping the summer of 2007 when 217.6 million people flew. That figure includes 31 million travelers on international flights, also a record.

On average, there will be 2.4 million passengers a day, 4.5 percent more than last summer.

After several years of limiting their expansion, U.S. airlines are now quickly adding more seats, including 4.6 percent more this summer. Those added seats are mostly the result of airlines flying larger planes and packing in extra rows to existing jets.

Those extra seats have given pause to some Wall Street analysts who worry that airlines might have to discount fares to fill them. That hasn’t happened yet, but after years of steadily rising airfares, there is a tiny bit of relief for fliers this summer — $2.01 in savings to be exact.