Not a bad idea, however the OP's itinerary is 45151 miles which is a little beyond the 39000 threshold of the *A ATW ticket.
From To Distance
OSL AMS 596
AMS FRA 227
FRA JFK 3849
JFK IAD 227
IAD SLC 1825
SLC SFO 598
SFO LAX 337
LAX GUA 2196
GUA CLT 1546
CLT SJU 1478
SJU CLT 1478
CLT IAD 321
IAD GIG 4811
GIG GRU 209
GRU LAX 6169
LAX ICN 5988
ICN MNL 2091
MNL SIN 1494
SIN HKG 1595
HKG SIN 1595
SIN CPH 6199
CPH OSL 322
Total 45151