Historical clue formulations

• HHH — 2026-09-26
• Guesstimates for when planes are due, for short — 2026-08-03
• GPS guesses — 2026-07-20
• Some messages from a road trip, in brief — 2026-07-09
• They may change midflight, in brief — 2026-07-03
• Some delivery data, in brief — 2026-04-16
• Airline predictions, for short — 2026-04-01
• GPS guesses, for short — 2026-03-01
• Uber predictions, in brief — 2026-02-01
• Brief announcements from a pilot — 2025-12-14
• Some airport listings, for short — 2025-12-01
• Some GPS calculations — 2025-06-29
• Midflight announcements, for short — 2025-02-16
• Some travelers' concerns, in brief — 2025-01-18
• Waze figs. — 2024-12-12
• Guesses of interest in the cellphone lot — 2024-12-01
• GPS guesses — 2024-05-26
• H's on some college houses — 2024-03-31
• List on display at the airport — 2024-02-29
• GPS's guesses — 2023-12-14
• Hellenic H's — 2023-12-12
• Features of many "On my way" texts — 2023-11-02
• Midflight stats — 2023-09-27
• GPS guesses — 2023-09-23
• Flight board figs. — 2023-08-28
• GPS figs. — 2023-08-24
• Plane figures? — 2023-07-20
• Some announcements interrupting in-flight movies, for short — 2023-02-26
• Column on an airport flight board, informally — 2023-01-21
• Gate postings, briefly — 2022-12-10
• Landing info, in brief — 2022-11-06
• Best guesses as to "when," in brief — 2022-10-04
• GPS calculations, in brief — 2022-09-18
• Touchdown figs. — 2022-07-06
• Sched. listings at JFK or LAX — 2022-01-03
• Data for airport limo drivers, for short — 2021-11-30
• When planes are due in, for short — 2021-11-01
• Airport guesses, for short — 2021-10-04
• Headwinds can push them back, in brief — 2021-10-01
• Some rideshare info — 2021-08-29
• Greek H's — 2021-06-08
• Greek letters that rhyme with three other letters — 2021-03-22
• Requests made to latecomers, in brief — 2020-11-20
• Flight board listings, for short — 2020-11-17
• Info on a flight tracker app — 2020-10-02
• Greek vowels — 2020-09-13
• Greek H's — 2020-09-06
• Scheduling guesses that might be updated in midair, for short — 2020-07-13
• GPS's guesses — 2020-05-31
• Guesses by GPSes — 2020-04-19