Which would you fly in J PHL-LON?
I'm a PHL-based Delta GM and I need to do a quick turn to London (either LHR or LGW) in July, flying in J. I'd like to stick with ST, and my choices are NW, connecting in DTW (A330 for the long leg), AF, connecting in CDG (A330, and CO (757 for the TA leg), connecting in EWR (it's actually Amtrak for the PHL-EWR leg). All three are ~$3k. DL is about $2k more, so I'm not considering it. Thoughts?