Stale data seems likely. ITA is still messed up - it will now quote CNY 1780 from BJS and CNY 1980 with SFO as a sales city. And Google Flights shows the lower "from a travel agent".
But this is probably because they raised the fare this morning:
Code:
V FARE BASIS BK FARE TRAVEL-TICKET AP MINMAX RTG
1I GLE0ZEC7 G‡R 301.00 T30JN -/‡ -/ 3M PA01
PASSENGER TYPE-ADT AUTO PRICE-YES
FROM-BJS TO-LAX CXR-UA TVL-21NOV16 RULE-PE2S IPRP/3
FARE BASIS-GLE0ZEC7 SPECIAL FARE DIS-E VENDOR-ATP
FARE TYPE-XPN RT-INSTANT PURCHASE NONREFUNDABLE-TYPE FARES
CNY 1980 0501 E18JUN16 D-INFINITY FC-GLE0ZEC7 FN-6U
SYSTEM DATES - CREATED 17JUN16/0617 EXPIRES INFINITY
.bomb prices CNY 1980.00 base fare.