Air Canada (AC)
BC: J C D S
EC: Y M B H V T N Q L Z W E G I K R U X

Air New Zealand (NZ)
FC: F A O
BC: C D I R Z U
EC: Y B M H Q X N V W L T

All Nippon Airways (NH)
FC: F A O
BC: C D I J
EC: Y B M X N W K L S T G

Asiana Airlines (OZ)
FC: F A P O
BC: C D I R J Z
EC: U Y E B M H Q V F K W G L T X N

Austrian (OS)
BC: C D I R
EC: Y B M H Q X N V W G S

British midland (BD) - short haul
BC: C D I R J
EC: Y B M H Q X N V W S K G T E O

British midland (BD) - long haul
BC: C D I R J
EC: U L Z Y B M H Q X N V W T

LOT Polish Airlines (LO)
BC: J C D Z I W
EC: Y M L H K B V G Q

Lufthansa (LH)
FC: F A O
BC: C D I R Z
EC: Y B M H Q X N V W E S Z

Scandinavian Airlines (SK)
BC: C D I R A J Z
EC: Y B M H Q X N V W G K O T

Singapore Airlines (SQ)
FC: F A O P
BC: C D I J Z
EC: Y B M H Q X N V W U E G K T

Spanair (JK)
BC: C D I R J
EC: Y B M H Q X N V W S L T G

Thai Airways International (TG)
FC: F A P O Z
BC: C D I R J
EC: Y B M H Q X N V W S L T G K

United Airlines (UA)
FC: F A P O
BC: C D I
EC: Y B M H Q X N V W S L T G

VARIG (RG)
FC: F A P O
BC: C D I R J Z
EC: Y B M H Q X N V W S L T G

Explanations:
FC: First Code
BC: Business Code
EC: Economy Code
Letters in regular faces: *A common booking class alignment (all *A members other than AC & LO are aligned)
Letters in bold faces: carrier specific exceptions
Letters in italics: FFP Redemption Codes

Source: Reference Guide for Employees of Star Alliance Member Carriers, Seventh Edition.