START WITH
THE REAL
QUESTION.
Not generic travel advice. Each brief freezes a concrete itinerary problem, exposes its assumptions and opens the exact instrument needed to test your own version.
Is 75 minutes enough for a Frankfurt connection?
Model a 75-minute Frankfurt transfer with immigration, a terminal change and no bag recheck.
41%MODELED CATCH PROBABILITYOpen modeled answer ↗02 · CONNECTION SCENARIOIST / 060Is a 60-minute Istanbul connection defensible?
Stress-test a one-hour Istanbul transfer with a long walk and a small inbound delay.
36%MODELED CATCH PROBABILITYOpen modeled answer ↗03 · AIRPORT-SWITCH SCENARIOLHR → LGWCan a Heathrow to Gatwick connection work?
Price the hidden ground journey, bag reclaim and protection break behind a London airport change.
4H 30M+DEFENSIBLE MODELED BUFFEROpen modeled answer ↗04 · AIRPORT-SWITCH SCENARIOJFK → EWRHow risky is a JFK to Newark flight connection?
Model the New York cross-airport transfer that a fare list can display like an ordinary stop.
5H+DEFENSIBLE MODELED BUFFEROpen modeled answer ↗05 · AIRPORT-SWITCH SCENARIOHND → NRTHow much buffer does a Haneda to Narita transfer need?
Expose the surface journey and bag deadlines inside a Tokyo airport change.
4H 30M+DEFENSIBLE MODELED BUFFEROpen modeled answer ↗06 · CONTRACT SCENARIOPNR A ≠ PNR BWho pays when separate tickets miss a connection?
Map the protection break between two bookings and price the replacement-flight exposure.
2INDEPENDENT CONTRACTSOpen modeled answer ↗07 · CODESHARE SCENARIOBA680 ≈ AA6958Can two flight numbers be the same physical flight?
Use operator, route and schedule evidence to test a codeshare twin without pretending it is confirmed live data.
90%EXAMPLE TWIN SIGNALOpen modeled answer ↗08 · OFFER-AUTOPSY SCENARIOINCLUDED ≠ FROMDoes 'bag available' mean baggage is included?
Separate included allowance from an optional bag price hidden near the headline fare.
+$75EXAMPLE HIDDEN EXTRAOpen modeled answer ↗09 · GROUP-FARE SCENARIO6 → 2+4Can a family split bookings without separating children?
Optimize fare buckets while keeping every minor on a record with a responsible adult.
$210EXAMPLE NET SAVINGOpen modeled answer ↗10 · TRUE-COST SCENARIO$412 → $531+Why can the cheapest flight cost more in the end?
Combine fare, bags, seats, ground travel, time and expected recovery cost into one decision total.
+$119EXAMPLE HIDDEN COSTOpen modeled answer ↗