Related Clues:
- Zeta-theta connection
- Platonic letter?
- SAS listing: Abbr.
- Campus letter
- Honor society letter
- H, to Herodotus
- Seventh letter of the Greek alphabet
- Part of a flight plan
- Version of a song: Abbr.
- Airline's best guess (Abbr.)
- Announcement before the listing of flight connections: Abbr.
- H-shaped letter
- Sched. listing
- The 'A' in E.T.A.: Abbr.
- Cockpit approximation