Related Clues:
- Campus letter
- Honor society letter
- H, to Herodotus
- Seventh letter of the Greek alphabet
- Part of a flight plan
- Map line: Abbr.
- Airline's best guess (Abbr.)
- Announcement before the listing of flight connections: Abbr.
- Long. crosser
- H-shaped letter
- Sched. listing
- Cockpit approximation
- In-flight guesstimate
- Plato's seventh letter
- Global positioning meas.