Originally Posted by
CKDGM
I probably did the flight selection in Google Flights before going to Delta.com, so if there's a check in the city selection form I would have missed it. I'll look later and see if I can figure out what's going on.
Yeah. Delta.com won't search for it, but the "Book with Delta" link from Google Flights priced out. I just tested this with SEA-LHR Oct 23-27/Jan 08-12, and the double RT prices at $1582 (V fares) while Oct 23-27 alone (same flights, pricing as H fares) is $2812.