Following is a snip from 3544quebec many months ago. This is the longest itin I could find in this discussion group and still short of 100k base miles. (very impressive though)
Note that 3544quebec uses no intercontinental backtracking.
From To Distance
35 segment path: 85459 mi
YYC YVR 427 mi CP/AY
YVR JFK 2447 mi CX/AY
JFK GRU 4738 mi AA/CP
GRU MVD 971 mi AA/AY
MVD GRU 971 mi AA/BA
GRU EZE 1061 mi CP/AA
EZE GRU 1061 mi CP/CP
GRU LAX 6158 mi AA/AA
LAX DFW 1234 mi AA/CX
DFW LHR 4763 mi AA/QF
LHR LCA 2034 mi BA/AY
LCA LHR 2034 mi BA/BA
LHR CAI 2179 mi BA/IB
CAI LHR 2179 mi BA/QF
LHR JNB 5598 mi BA/AA
JNB HRE 615 mi QF/AY
HRE JNB 615 mi QF/BA
JNB CPT 781 mi BA/CX
CPT JNB 781 mi BA/CP
JNB HKG 6643 mi CX/AA
HKG BKK 1082 mi CP/QF
BKK HKG 1082 mi CP/BA
HKG NRT 1819 mi CX/BA
NRT HKG 1819 mi CX/IB
HKG JKT 2011 mi CX/CP
JKT HKG 2011 mi CX/CX
HKG SYD 4542 mi CX/QF
SYD PPT 3832 mi QF/CP
PPT SYD 3832 mi QF/IB
SYD PER 2067 mi QF/QF
PER SYD 2067 mi QF/CX
SYD JFK 9942 mi QF/AA
JFK YYZ 365 mi AA/IB
YYZ YWG 936 mi CP/IB
YWG YYC 742 mi CP/CX
[This message has been edited by PaulSEA1 (edited 08-29-2000).]