With the introduction of Premium Economy Class by Lufthansa the following upgrades are now possible on international Lufthansa flights to/from Germany:
Upgrade from Economy Class (B, Y) to Premium Economy Class:


20,000 miles: India, North America, Southern Africa

20,000 miles: Middle East, the Caucasus, North and Central Africa
25,000 miles: Central America, Caribbean, South America

30,000 miles: South-East Asia, Central Asia, Far East

Upgrade from Economy Class (H, M, Q, S, U, V, W) to Premium Economy Class:

20,000 miles: Middle East, the Caucasus, North and Central Africa
30,000 miles: India, North America, Southern Africa
30,000 miles: Central America, Caribbean, South America
35,000 miles: South-East Asia, Central Asia, Far East
Upgrade from Premium Economy Class (G) to Business Class:

20,000 miles: India, North America, Southern Africa
20,000 miles: Middle East, the Caucasus, North and Central Africa
25,000 miles: Central America, Caribbean, South America
30,000 miles: South-East Asia, Central Asia, Far East
Upgrade from Premium Economy Class (E) to Business Class:

20,000 miles: Middle East, the Caucasus, North and Central Africa
30,000 miles: India, North America, Southern Africa
30,000 miles: Central America, Caribbean, South America
35,000 miles: South-East Asia, Central Asia, Far East
Upgrade with eVoucher:

From Economy Class to Premium Economy Class = 1 eVoucher
From Premium Economy to Business Class = 1 eVoucher

In addition, Premium Economy upgrades are also possible on a few international legs of Lufthansa intercontinental flights, provided that these flight legs are operated by Lufthansa.