| Answer | Crossword Clue |
|---|---|
| HARTSFIELD | Busy US airport |
| OHARE | Busy airport. |
| OHARE | Busy airport |
| HUB | Busy airport |
| ORLY | Busy airport |
| ORLY | Busy airport overseas |
| OHARE | Busy American airport |
| OHARE | Busy Midwest airport |
| OHARE | Busy Illinois airport |
| OHARE | Busy, busy airport |
| OHARE | Very busy American airport |
| FRI | Busy airport time: Abbr. |
| SFO | Busy W. Coast airport |
| OHARE | Busy U.S. airport |
