Nice find! Rules text says ticket by 30-Apr-17, but the fare is filed only for today:
Code:
V FARE BASIS BK FARE TRAVEL-TICKET AP MINMAX RTG
1R PXNC3NS P‡R 838.00 T30AP -/3 -/12M AT01
PASSENGER TYPE-ADT AUTO PRICE-YES
FROM-SAN TO-LON CXR-UA TVL-26APR17 RULE-E351 IPRA/1
FARE BASIS-PXNC3NS SPECIAL FARE DIS-E VENDOR-ATP
FARE TYPE-BAP RT-BUSINESS CLASS ADVANCE PURCHASE
USD 838.00 0402 E26APR17 D26APR17 FC-PXNC3NS FN-6V
SYSTEM DATES - CREATED 26APR17/1120 EXPIRES 26APR17/2359
Definitely something to jump on!