You're booking J and want to upgrade to F?
adambrau has your two options for UA F.
If you've got a whole bunch of GPUs the LH option to upgrade to F will give you a superior product to anything UA can offer.
On UA, from March 25 on the EWR-SFO-HKG-SIN routing offers the 77W from SFO-HKG (and possibly EWR-SFO).
EWR-ORD-HKG-SIN would be the least attractive in J due to 2-4-2 on the 772.
EWR-HKG-SIN is probably most efficient.
Last edited by Kacee; Mar 1, 2017 at 8:24 am