Not too bad for USA to Europe these days, though length-of-stay requirements prohibit a pure MR.
Good way to burn SWUs before the year ends.

7-day adv. purchase.
Travel Mon-Thurs.
Sat night stay required.

Rules from expedia for WLXSMY1E:
FIRST TRAVEL -13JUL06 LAST TICKETING -10AUG06
SEASONS - 01NOV06-16DEC06
DEPARTURE OUTBOUND TRANSATLANTIC SECTOR
26DEC06-21MAR07
DEPARTURE OUTBOUND TRANSATLANTIC SECTOR
PENALTIES - CANCEL-NON REF BEFORE DEPART
CANCEL-NON REF AFTER DEPART
CHANGE-200.00 USD BEFORE DEPART
CHANGE-200.00 USD AFTER DEPART
FOR ALL CONDITIONS SEE TEXT RULE
DAY/TIME - MON THRU THU ALL DAY
DEPARTURE EACH TRANSATLANTIC SECTOR
ADV RES/TKT - RES REQ 7 DAYS BEFORE DEPART
TKTG WITHIN 72 HOURS
AFTER RESERVATIONS OR AT LEAST 7 DAYS
BEFORE DEPART WHICHEVER IS EARLIER
WAITLISTING NOT PERMITTED ALL SEGMENTS
FURTHER RESTR APPLY SEE TEXT RULE
MIN STAY - RETURN FIRST SUNDAY AFTER
DEPARTURE OUTBOUND TRANSATLANTIC SECTOR
MAX STAY - 30 DAYS BEFORE MIDNIGHT AFTER
DEPARTURE FROM ORIGIN
BLACKOUTS - NO RESTRICTION
SURCHARGES - NONE
STOPOVERS - NOT PERMITTED
TRANSFERS - 6 PERMITTED OUTBOUND 3 INBOUND 3
FLT APPLIC - UA FLT 1-1699 FLT 5200-8099 FLT 8725
-9500LH FLT 1-1399 FLT 3000-4999 FLT
9050-9439
CHILD DISC - INF UNDER 2 YRS 90 PCT NO SEAT
OTHER DISC - NONE
COMBINABLTY - SEE TEXT RULE
ELIGIBILITY - NO RESTRICTION
ACCOM PSGR - NO RESTRICTION
TRVL RESTR - NO RESTRICTION
SALES RESTR - TKT ON/BEFORE 10AUG06
TKT BY PTA PTA-TKT PERMITTED
NEGOTIATED - NO RESTRICTION
TKT ENDORSE - ORIGINAL/REISSUED TKT -
NONREF/NONEND/NONTRANS MUST APPEAR IN
ENDORSEMENT BOX ORIGINAL/REISSUED TKT -
VALID UA/LH/SK/BD/OS ONLY
MUST APPEAR IN ENDORSEMENT BOX
FURTHER RESTR APPLY SEE TEXT RULE
APPLICATION - SEE TEXT RULE
MPM - AT 6260 VIA NORTH ATLANTIC
INDUSTRY FARE TYPE - XPN - INSTANT PURCHASE NONREFUNDABLE
PFCS MAY VARY BY RTG
ROUTING 500 FROM SFO-UA/LH-WAS-UA/LH-ATL/BOS/
EWR/NYC/MIA/PHL/ORL/TPA-UA/LH-ATL/BOS/
CHI/CLT/DFW/DTT/EWR/HOU/MIA/NYC/PHL/