- Nonstop destination
- A destination reached from the origin without an intermediate landing in the current schedule snapshot. It is counted once even when several airlines operate it.
- Direct flight
- FlightQ uses “direct” as a plain-language synonym for nonstop on route-map pages. Some airlines use “direct” for a same-flight-number service with a stop; those are not counted as nonstop here.
- Operating carrier
- The airline scheduled to operate the aircraft. Marketing carriers and codeshare flight numbers can create duplicates, so route and airline totals are grouped around operating-carrier rows where the feed provides them.
- Scheduled frequency
- Published departures captured in the current refresh window, divided by the observation window. It is not a promise that every flight will operate and should not be used as a live departure board.
- Observed flight time
- An average derived from tracked completed flights when enough observations exist.
- Estimated flight time
- A great-circle-distance estimate with a climb, descent and ground-time allowance. Estimates are marked with a tilde or described as estimated.
- Current vs. historical
- Route maps prioritize the latest complete schedule window. Tracked-flight summaries can cover an older observation period and show their last-observed date. Retired or upcoming fleet and seat configurations are not presented as current.
- Daily puzzle date
- Daily games roll over at midnight America/New_York. That means UTC offset −05:00 in Eastern Standard Time and −04:00 in Eastern Daylight Time; the reset follows daylight-saving transitions.
- Verified
- Checked against an inspectable primary or authoritative source and still inside the dataset-specific freshness window.
- Estimated
- Calculated from disclosed inputs or a model, not observed as a live quote or measured event. Estimated values are never labelled live or verified.
- Unverified
- Structurally valid but lacking current per-record evidence. Legacy puzzle banks can still contain unverified clues; new or materially changed answer-critical records should not be promoted to verified without inspectable evidence.