Here an interesting example:
HKG-FRA on TG in Q before Sept. 9 is 7280 on tiglion, 6900 on aerohkg.
HKG-FRA on TG in Q after Sept. 9 is 6780 on tiglion, 6390 on aerohkg.

Tiglion has a flight on MU for 3680 which is not listed at all on aerohkg.

On VN for example, they offer different fare classes, tiglion T and aerohgk L so that it is not really comparable.

It seems worth always checking out both.