I don't think that is the case here. These are the two sets of results - firstly with US point of sale, secondly with UK point of sale.
Results from https://www.ExpertFlyer.com
Code:
Flight Availability Search
Departing HTI on 01/05/18 12:00 AM ± 2 Day(s) for SYD
Flying OneWorld
Direct/Non-Stop Only
Frequency
Flight Stops Depart Arrive Aircraft Reliability Available Classes
0 Connections
QF 1173 0 HTI SYD 73H F J7 C3 D1 I0 U0 Y9 B9 H9 K9 M9 L9 V0 S0 N0 Q0 O0 G0 X0 E0
01/05/18 12:30 PM 01/05/18 3:50 PM NA / NA
Results from https://www.ExpertFlyer.com
Code:
Flight Availability Search
Departing HTI on 01/05/18 12:00 AM ± 2 Day(s) for SYD
Flying OneWorld
Direct/Non-Stop Only
Point of Sale: UK
Frequency
Flight Stops Depart Arrive Aircraft Reliability Available Classes
0 Connections
QF 1173 0 HTI SYD 73H F J7 C3 D0 I0 Y9 B9 H9 K9 M9 L0 V0 S0 N0 Q0 O0 X0 E0
01/05/18 12:30 PM 01/05/18 3:50 PM NA / NA
There is UK point of sale availability on Jan 7th but I am trying to do LHR-DXB-MEL-HTI-SYD-KUL-SIN-HND-JFK in 20 days and cant really afford to spend 6 days in HTI