| Clue | Source | Date |
|---|---|---|
| Washington airport code | LA Times Daily | 10 Dec 2025 |
| Reagan Airport, on luggage tags | ||
| Reagan Airport, on luggage tags | LA Times Daily | 06 Jun 2021 |
| Reagan Airport code | LA Times Daily | 02 Sep 2020 |
| Reagan Airport code | ||
| Washington airport code | Universal | 25 Jul 2019 |
| Reagan Airport, on tickets | LA Times Daily | 20 Apr 2019 |
| Reagan Airport, on tickets | ||
| Washington airport code | ||
| Reagan Airport, on tickets | ||
| Ronald Reagan Washington National Airport's code |