Perhaps of interest to you, gentle reader:

quote
LONDON (AFP) - A Boeing 777 plane has broken the world record for the
longest flight by a commercial jet when it landed at London's Heathrow
airport on a flight from Hong Kong via the Pacific.
/quote

More at
http://news.yahoo.com/s/afp/20051110/tc_afp/hongkongusairbritain_051110181726
among other places.

For instance, the OC Register says in
http://www.ocregister.com/ocregister/money/abox/article_761915.php:
quote
The 777-200LR Worldliner - one of Boeing's newest planes - touched
down shortly after 1 p.m. (5 a.m. PST) at London's Heathrow Airport
after a journey of more than 11,664 miles. The previous record was set
when a Boeing 747-400 flew 10,500 miles from London to Sydney,
Australia, in 1989.
/quote