Originally Posted by
WineCountryUA
the A359, A351 has longer range than 77W or 789s. 77W would have to have very favorable flight conditions to make a over 17 hour flight that CX is operating and you still have the crew quarantine issue
An EWR-HKG route that avoids Russian airspace is about 8700 mi (vs. 8065 nonstop). That's about the same length as LAX-SIN, so the 789 has the legs for it, but it may require blocking some seats or a fuel stop in Anchorage when the winds are strong.
I wonder if CX is simply transiting Russian airspace.