On the contrary! It's actually quite normal. CX does two of those nightly from LAX and SFO, and one each from BOS, JFK, YVR and YYZ. For the arrival time - early morning - it is impossible to beat these schedulings to land and start a day of meetings. They are extraordinarily useful for a subset of us who travel mainly for business. Work all day, dinner, go to airport, fly back to HKG, sleep most of flight, work full day on landing.

Not to mention virtually every ex HKG departure for Europe on CX is scheduled this way, and many for North America!

They are just killer for arrival timing. And they also help CX match up a proper rotation for the plane, for example your BOS flight rotation starts in HKG leaving HKG at 6pm or so in the evening (aka 6am Boston time), lands 10pm or so into BOS, and hence is only on the ground a few hours before flying back to HKG. This helps increase utilization of the plane, lowering cost per seat mile. Airlines like CX and EK blow US airlines out of the water for aircraft utilization, often by as much as 1-3 hours daily, due to their longhaul operations and efficient timings.

I'll add, CX didn't pioneer this....You fly virtually any major longhaul airline and midnight departures are very "normal"!!

Anyhow, I usually check out normally (or get a late check-out), then have a dinner and drinks arranged either with business or friends, and then go to airport not too long before the flight. Although apparently there is a new BA lounge at BOS which is an upgrade from the old dump BA used to have.

The other option is obviously pay an extra night.

Enjoy your flight.