| Clue | Source | Date |
|---|---|---|
| Travel reward unit | The Times Sunday Concise | 22 Dec 2024 |
| Navigational measure | Newsday | 14 Dec 2018 |
| Unit for a frequent flier | Jonesin | 09 Feb 2016 |
| Aviator's distance measure | ||
| Frequent flier's credit | ||
| Unit for a frequent flier | ||
| Distance measure for aviators | ||
| Bonus for frequent travellers |