| AIRLINE | CODE | FIRST CLASS | BUSINESS | COACH/ECONOMY |
| Aer Lingus | EI | C | D | Y B H K M V N L |
| Aeromexico | AM | N/A | J | Y B K S M Q L W V T A X N |
| Air Canada | AC | J | C, J | Y B H V Q L U R I G E N T |
| Air China | CA | F | J, D | S Y B H Q M N K L T X |
| Air France | AF | P, F, A | J,C, D | Y K H W TV X L N G B |
| Air Jamaica | JM | F, A | J | Y V M B H K L Z Q X S U |
| Air New Zealand | NZ | F, A | D | Y B H Q M L T V |
| AirTran Airways | FL | N/A | N/A | Y B M K Q T L R V E |
| Alaska Airlines | AS | F | N/A | Y S B M H Q L V K G T |
| Alitalia | AZ | F, | D | Y B M H K V T N L O |
| All Nippon Airways | NH | F,A | J, D, C | W S Y B H M K G |
| Aloha Airlines | AQ | F | N/A | Y B H M T L V Q Z K |
| America West | HP | F | N/A | Y H W B Q L K V M |
| American Airlines | AA | F, A | C, J | Y H K L M Q S T U V |
| Asiana Airlines | OZ | F A | C, J | Y M V B S W H G Q K J |
| ATA | TZ | N/A | N/A | Y H L M B K Q |
| Austrian Airlines | OS | N/A | C D J | Y B M H Q G V |
| BMI | BM | N/A | C D | Y S K M H Q V W |
| British Airways | BA | F,A | J,C,D,I | W T B H K M R U N L S Q O |
| Cathay Pacific | CX | F A J | C D I | Y B H K M V N L |
| China Airlines | CI | F | C D | Y B M Q T K H L N |
| Continental | CO | A D F | N/A | Y H K B V Q S T |
| Czech Airlines | OK | C | D | Z Y M B H T |
| Delta | DL | F A | N/A | Y B M H Q K L M |
| El Al | EL | C | I D | Z W Y S M Q R |
| EVA Airways | BR | F | C | Y M Q L V R K T H U B |
| Finnair | AY | N/A | C D | Y M B K Q H V L |
| Frontier Airlines | F9 | N/A | N/A | W Y K B M H Q V S N |
| Hawaiian Airlines | HA | F P | N/A | Y W Q B M N T H |
| Iberia | IB | F A | J D I | Y B H K M |
| Icelandair | FI | N/A | C | M B K Q S D W H J |
| Japan Airlines | JL | F | C D I | Y B M K N Q |
| KLM | KL | N/A | J C Z | S B M H Q V |
| Korean Air | KE | P F | C I | Y W T H S N Q X |
| Lan Chile | LA | F A | J D | Y B H K M C W V |
| Lan Ecuador | XL | N/A | J D | W S Y B H Q M N K L V O |
| LOT-Polish Airlines | LO | N/A | C D Z | W S Y O H Q M V G |
| Lufthansa | LH | F A | C D Z | Y B M H Q V W S |
| Malaysia Airlines | MH | F A | C D | Y K B H M Q L |
| Mexicana | MX | N/A | C D | Y B M S H Q K V W L |
| Midwest Airlines | YX | N/A | N/A | Y B H V Q K W M T L X |
| Northwest | NW | P F | J C Z | Y B H Q V L T K |
| Qantas Airways | QF | F A | J D | S Y B H Q M K L W |
| SAS | SK | N/A | A C D J | Y S B M H Q V W K G |
| Spirit Airlines | NK | N/A | C A | Y B H Q M K L V T |
| Sun Country Airlines | SY | N/A | N/A | Y B M H Q V L I Z |
| Swiss International Air Lines | LX | F | J C D | Y S M L H N K B V |
| Thai Air International | TG | P F A | J C D | Y B M H Q K S V W Z T |
| United Airlines | UA | F | C D | Y B M H Q V W S T K L G Z E U |
| US Airways | US | F P A | C D Z | Y B M H Q V S W T L |
| Virgin Atlantic | VS | N/A | J D Z | W S K T B L M Q X N |