Article posted Thursday, June 18, 2015 11:56am

Summer officially arrives at 11:38 am CDT on June 21. Here are a few travel facts about the season.

Percent of Americans who admit using a sick day as a vacation day.

Percent of Americans who say they will be checking their work email daily during vacation.

Percent of Americans who plan to take vacations this summer.

$220

The average cost of a domestic flight this summer.

$1,180

Average amount spent per person on summer vacation.

3.1 million

The expected number of people traveling by air for the 4th of July.

222 million

Number of people expected to travel domestically by air this summer.

Sources: AAA, Airlines for America