| Clue | Source | Date |
|---|---|---|
| High ways | New York Times | 27 Nov 2022 |
| Jet routes | New York Times | 10 Jan 2021 |
| Southwest routes | LA Times Daily | 09 Mar 2018 |
| Southwest routes | The Washington Post | 09 Mar 2018 |
| Flight paths | ||
| Flight paths | ||
| High routes | ||
| High routes | ||
| Continental ways? | ||
| Flight paths | ||
| Continental courses? | ||
| Skyways | ||
| Certain travel routes. | ||
| Routes for Constellations. | ||
| Modern travel routes. | ||
| Paths for aerial navigators. |