| Market share | Airport | % Correct |
|---|---|---|
| 47% | Chicago O'Hare | 95%
|
| 68% | Newark Liberty | 95%
|
| 15% | Los Angeles | 94%
|
| 78% | Houston-Intercontinental | 93%
|
| 46% | San Francisco | 93%
|
| 42% | Denver | 89%
|
| 65% | Washington-Dulles | 84%
|
| 99% | Guam | 55%
|