Flight delay/connection missed SYD-SIN-LHR

The_Only_Homer_Simpson_UK

Hi looking for advice my Terminally ill disabled daughter and her husband had flown out for a "bucket list" holiday/ Honeymoon with Singapore airlines LHR-SIN-Brisbane and then returned SYD-SIN-LHR , however flight was 1hr7 mins late taking off from Sydney to Singapore due to a technical fault and thus missed the connecting flight SIN-LHR . They arrived back in UK some 8 hours later( UK time) as they were put on a later flight.
The question is are they entitled to any compensation under either the EU regs or I have heard about The Montreal convention? but cannot find much info on this and what they could possibly claim for ?
Hoping one of you experts can point me in a direction to go with this .
Thanks TOHSUK

Caz3121

The_Only_Homer_Simpson_UK wrote: »

however flight was 1hr7 mins late taking off from Sydney to Singapore due to a technical fault and thus missed the connecting flight SIN-LHR .

EU261 not applicable as the flight departed outside the EU on a non-EU carrier
Do they have costs they incurred that they are looking to claim or is this for the inconvenience?
Worth checking if their travel insurance pays anything although many start at 12 hour delays and pay a token sum like £20.

The_Only_Homer_Simpson_UK

Thanks Caz problem is with Terminal illness Excess is ridiculous so no chance of claiming from insurance at all ... thanks Anyhow , have written a letter to S/Airlines and will await heir reply