Find out the departing and arriving terminals along with check-in levels for the various airlines at Newark Liberty International Airport.
| Airlines | Phone Numbers | Departures Terminal | Airline Check-In Level | Arrivals Terminal | Arrivals Level |
| Air Canada | (888) 247-2262 | Terminal A | Level 3 | Terminal A | Level 2 |
| Air India | (212) 751-6200 | Terminal B | Level 2 | Terminal B | Level 1 |
| Alaska Airlines | (800) 426-0333 | Terminal A | Level 3 | Terminal A | Level 3 |
| American | (800) 433-7300 | Terminal A | Level 3 | Terminal A | Level 2 |
| American Eagle | (800) 433-7300 | Terminal A | Level 3 | Terminal A | Level 2 |
| Austrian Airlines | (800) 843-0002 | Terminal B | Level 3 | Terminal B | Level 2 |
| Avianca | (800) 284-2622 | Terminal B | Level 3 | Terminal B | Level 1 |
| Bahamasair | (800) 222-4262 | Terminal B | Level 3 | Terminal B | Level 3 |
| British Airways | (800) 247-9297 | Terminal B | Level 1 | Terminal B | Level 1 |
| Cathay Pacific | (800) 233-2742 | Terminal B | Level 3 | Terminal B | Level 3 |
| Delta | (800) 221-1212 | Terminal B | Level 2 | Terminal B | Level 1 |
| El Al | (800) 223-6700 | Terminal B | Level 3 | Terminal B | Level 1 |
| Icelandair | (800) 223-5500 | Terminal B | Level 3 | Terminal B | Level 1 |
| Jet Airways | (877) 835-9538 | Terminal B | Level 3 | Terminal B | Level 1 |
| JetBlue | (800) 538-2583 | Terminal A | Level 3 | Terminal A | Level 2 |
| La Compagnie | (800) 218-8187 | Terminal B | Level 3 | Terminal B | Level 2 |
| Lufthansa | (800) 645-3880 | Terminal B | Level 3 | Terminal B | Level 1 |
| OpenSkies | (866) 581-3596 | Terminal B | Level 1 | Terminal B | Level 1 |
| PEOPLExpress | (844) 435-9739 | Terminal B | Level 2 | Terminal B | Level 1 |
| Porter Airlines | (888) 619-8622 | Terminal B | Level 3 | Terminal B | Level 1 |
| SAS | (800)221-2350 | Terminal B | Level 3 | Terminal B | Level 1 |
| Southwest | (800) 435-9792 | Terminal A | Level 3 | Terminal A | Level 2 |
| Swiss | (877) 359-7947 | Terminal B | Level 3 | Terminal B | Level 1 |
| TAP Portugal | (800) 221-7370 | Terminal B | Level 3 | Terminal B | Level 1 |
| United | (800) 241-6522 | Terminal C | Levels 2 and 3 | Terminal B & C | Level 1 |
| United Express | (800) 241-6522 | Terminal A & C | Levels 2 and 3 | Terminal A & C | Level 1 & 2 |
| US Airways | (800) 428-4322 | Terminal A | Level 3 | Terminal A | Level 2 |
| US Airways Express | (800) 428-4322 | Terminal A | Level 3 | Terminal A | Level 2 |
| Virgin America | (877) 359-8474 | Terminal A | Level 3 | Terminal A | Level 2 |
| Virgin Atlantic | (800) 862-8621 | Terminal B | Level 2 | Terminal B | Level 1 |