Related Clues:
- When planes are expected: Abbr
- SFO postings
- "100" symbols, in Greek numerals
- Flight board postings, for short
- Swatch Group products
- Trident-shaped Greek letters
- Pair of horseshoes?
- P-like letters
- Athenian H's
- Next-to-last Greek letters
- Announcements from cockpits: Abbr
- Volatile airport figs
- P's on sorority sweaters
- They're between mus and xis
- N's in Athens