Couldnt get it on google flights either, looks like ITA was using cached data. got it to work for other dates. Plus booked it SFO-JFK-CDG-GOT-AMS-CDG-SFO.
The beauty in this was the fare rules say:
[KVS Availability Tool 7.3.5 - Booking Classes: SFO-GOT/AF-DL/VKPR3US/112 USD]
Code:
SFOGOT-AF 13APR14 *BOOKING CODE DISPLAY* LINE 001
FARE VKPR3US TARIFF 001 RULE US3P
BOOKING CODES V
A/L BKG CODE RESTRICTIONS
AF L REQUIRED WITHIN EUROPE
DL E REQUIRED FLT 6467-7299
DL E REQUIRED FLT 7332-9999
DL K REQUIRED WITHIN AREA1
DL V REQUIRED WITHIN AREA1
DL V REQUIRED WITHIN AREA3
DL E REQUIRED
My SFO-JFK booked into K, and I was able to clear the upgrade into BE!