Could the new 777-8X fly direct from Sydney to Heathrow?

Could the new 777-8X fly direct from Sydney to Heathrow? It has a range of 17,220km, while the flight 17,016 km on Great Circle Mapper. Any limitations involved?

I suspect they would need a bit more leeway to do a direct. It'd be a bit of a bummer if there was a stronger headwind than predicted

I would guess that margin would be eaten up by the circling holding pattern at Heathrow. Brisbane or Darwin might be able to do it though. Would be interesting if we could make Darwin the nation's stop over port to Europe with such long range aircraft. But surely that won't happen. 

Yep, "only" about 13900km. Perth is also in "easy" reach to London - about 14500km. Given that SIN-LHR about 11000km it seems quite reasonable to add few hours of flight and jump directly from Oz to Albion. And yes - never happens.

Due to flight planning limitations it couldn't be done. Allowances for such items as flying 'airways' routes, enroute weather diversions (around thunderstorms), company reserve fuel policies, & holding allowances for busy airports and destination weather would preclude Sydney - Heathrow. Also the particular configuration of the aircraft would have weight and hence range differences.

Perth - Heathrow seems like a possibility.

Never mind the fact that it'll be something like 20 hours on the plane, which would likely incite a riot on arrival.

And ignoring the fact that it will be xx years late and xx kg overweight neccesitating a pax and cargo penalty that makes the route unsustainable

I'm waiting (dreaming) of the day suborbital flights become a reality and LHR-SYN is only 3 hours apart.

Keep dreaming - even if it happens, price would be so high that Concord became looks like a bargain.

A Concord ticket is a bargain, so long as you're prepared to take the 439.

I doubt there's enough traffic between London and Stanton, Minnesota to justify a suborbital LHR-SYN flight.

How VERY clever of you... Want a pat on the head for being such a clever boy?

SYD-ORD, SYD-JFK or SYD-MIA would be possible and interesting alternatives though.

Thank you all for your responses.