Related Clues:

• Ninth Greek letter
• H, in Greece
• Homeric H
• Itsy bitsy bit
• H look-alike
• Useful info at Dulles
• Seventh Greek letter
• Airport guesstimate
• Pilot's info, briefly
• Minute quantity
• Platonic letter
• Letter from the Corinthians
• Zeta's follower
• Theta follower
• In-flight guesstimate, for short