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Queen Airlines Flight 510 (Q-510) was a flight that was bound for New Chitose Airport in Sapporo from Haneda Airport in Tokyo. The flight was hijacked by an unidentified minor on February 29, 2008, sending the plane crashing into Iriai Coast, southeast of Yūyami City. Everyone onboard was killed except the hijacker, whose identity remains undisclosed as the hijacker was a minor at the time.

Ryō Kurisu was to be a passenger on this flight, along with a priest who had looked after him when he was younger, but the priest became ill and Kurisu cancelled their trip.