1. Work backward from scheduled departure
The calculation starts with the scheduled flight time and works backward. Every airport-side requirement subtracts from a known endpoint instead of being hidden inside one vague airport buffer.
2. Gate-ready margin
Being inside the airport is not the same as being ready to board. FlyBuffer keeps a separate margin for reaching the gate area before boarding becomes urgent. International trips can require a larger allowance.
3. Terminal navigation
After security, the traveler may still need to walk, ride a train or change concourses. Terminal movement is separate because a short queue does not imply a short trip to the gate.
4. Security is modeled as a range
When FlyBuffer does not have an observed checkpoint queue, it does not present one. Security is treated as a range whose width makes uncertainty visible. A traveler can replace it with a better current checkpoint estimate.
5. Bags and document processing
Checked bags and international travel can add process time. Airline-specific bag-drop or check-in cutoffs take priority over a general estimate and can move the plan earlier.
6. Airport access is separate from travel time
The road or rail journey ends at airport property, but the terminal process may not. Drop-off, on-site parking, off-site parking, rental-car return and public transport create different paths to terminal entry.
7. Contingency is a separate choice
Cautious, recommended and latest-planned options change how much uncertainty the trip absorbs. More contingency can mean more waiting; less contingency leaves less room for variability.
8. Current vs typical conditions
Near-term trips can use current airport and security context where data supports it. Trips further in the future should lean more heavily on typical patterns rather than assume today’s conditions will persist.
9. Freshness and failed updates
Data is validated before publication. If an update fails, the last valid dataset remains available rather than being replaced with empty or corrupted output. Freshness makes older inputs visible.
10. How the security range is interpreted
The lower end of a range represents a lighter planning case and the upper end a more cautious one. FlyBuffer does not treat either edge as a guaranteed queue. The recommended plan typically uses a central allowance, while the cautious and tighter options use different combinations of security range and contingency.
11. Confidence describes the estimate, not the traveler
A confidence label refers to the quality and specificity of the available airport/security inputs. It is not a probability that you will make the flight. A medium-confidence estimate can still be useful when its uncertainty is visible and the traveler can replace it with better information.
12. Different data sources support different claims
Airport and runway facts support structural descriptions. FAA status supports current operating context. Weather sources support weather observations and forecasts. National TSA passenger volume supports broad demand context. None of those sources, by themselves, supports a claim that FlyBuffer can see the exact queue at a specific checkpoint.
13. Why travel time stays traveler-controlled
Your navigation app usually has better information about your actual origin and current road conditions than a static airport-planning page. FlyBuffer therefore treats journey time as an explicit input. Updating that number should change the travel block while leaving airport-side assumptions visible.
14. What FlyBuffer does not claim
FlyBuffer does not guarantee that you will make a flight, does not replace airline or government requirements, does not infer checkpoint queues from runway count and does not label a modeled security value as live unless the source genuinely supports that status.
15. How to use the recommendation
Treat the result as a transparent planning aid. Update it when the trip changes and follow more specific airline, airport or government requirements whenever they conflict with a general estimate.