| Answer | Crossword Clue |
|---|---|
| PLYING | Traveling regularly between two points. |
| shuttling | Travel regularly between two or more places |
| shuttled | Travel regularly between two or more places |
| shuttles | A form of transportation that travels regularly between two places |
| RIVERSOFAMERICA | A sequence of these snakes between two of the grid's corners, traveling horizontally and vertically |
| packets | A ship traveling at regular intervals between two ports, originally for the conveyance of mail |
