B737-800
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 24.25
Distraction; Confusion; Situational Awareness
ATC Issue All Types; Airspace Violation All Types; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Human Factors; Procedure
The aircraft had filed to fly over TIJ; then UJ7 PPE. TIJ is just outside my airspace by about 2 miles on the Mexican side of the border. This routing that Aircraft X had filed is unusual routing since it turns sharply to the East for 50 miles. Normally in this situation; the MMZT Center controller will issue alternate routing instructions to let the aircraft to fly a more direct route. Since they almost always adjust unusual routing; I did not check what the aircraft had filed past TIJ and thought it was clear of all US airspace. Once the aircraft had crossed the border into Mexico; my D-side dropped the data tag. The aircraft then turned east along his route; flying along the boundary of Sector 31's airspace without an approved Point-Out. The Sector 31 controller noticed the limited data block flying along his boundary; and brought it to my attention.I need to be sure to double check the routing after the first fix outside my airspace to ensure that I make all proper point-outs before dropping the data tag.
ZLA Controller reported an aircraft they assumed would continue on a southbound heading and turn after leaving the US. The aircraft was not pointed out to the adjacent sector causing an airspace deviation.