Charles Papanek waits for his flight (scheduled for later in the evening) at the United Airlines check-in area at O'Hare Airport Tuesday, August 28, 2012, in Chicago. | John J. Kim~Sun-Times
Travelers waiting in line at United Airlines check-in counter, terminal 1, at O'hare Airport Tuesday, August 28. | John J. Kim~Sun-Times
Travelers wait for the security check-in at O'Hare Airport Tuesday, August 28, 2012, in Chicago. | John J. Kim~Sun-Times
Teresa Davison of Newton Abbot, England, looks at the arrival/departure board in the United Airlines check-in area at O'Hare Airport Tuesday, August 28, 2012, in Chicago. | John J. Kim~Sun-Times
A traveler checks in for her flight at the United Airlines check-in area at O'Hare Airport Tuesday, August 28, 2012, in Chicago. | John J. Kim~Sun-Times
A traveler walks briskly to the security check-in line after checking in for her flight at the United Airlines check-in area at O'Hare Airport Tuesday, August 28, 2012, in Chicago. | John J. Kim~Sun-Times
A traveler waits in line to check in for her flight at the United Airlines check-in area at O'Hare Airport Tuesday, August 28, 2012, in Chicago. | John J. Kim~Sun-Times
Air travelers this holiday season can expect to pay a bit less than last year. | Sun-Times Library
Travelers wait in line to check in for their flights at the United Airlines check-in area at O'Hare Airport Tuesday, August 28, 2012, in Chicago. | John J. Kim~Sun-Times
Travelers wait in line to check in for their flights at the United Airlines check-in area at O'Hare Airport Tuesday, August 28, 2012, in Chicago. | John J. Kim~Sun-Times
Travelers wait in line to check in for their flights at the United Airlines check-in area at O'Hare Airport Tuesday, August 28, 2012, in Chicago. | John J. Kim~Sun-Times
Travelers wait in line to check in for their flights at the United Airlines check-in area at O'Hare Airport Tuesday, August 28, 2012, in Chicago. | John J. Kim~Sun-Times
Another major computer glitch hit United Airlines reservation system and website Tuesday afternoon, grounding planes for more than two hours and causing long lines and delayed flights. The glitch was another in a long string of technology problems that began when it merged computer systems …
