| Brussels | BRU | Jet Airways, Etihad Airways, Lufthansa, Brussels Airlines, United Airlines |
| Charlotte Douglas International | CLT | American Airlines, United Airlines, US Airways |
| Dallas Fort Worth International | DFW | American Airlines, United Airlines, US Airways |
| Chek Lap Kok International | HKG | American Airlines, Cathay Pacific, United Airlines |
| London Heathrow | LHR | American Airlines, Finnair, British Airways, Delta Air Lines, Iberia Airlines, Lufthansa, United Airlines, Virgin Atlantic Airways |
| Miami International | MIA | American Airlines, United Airlines, US Airways |
| Chicago O'Hare International | ORD | American Airlines, United Airlines, US Airways |
| Paris-Orly | ORY | American Airlines, British Airways, Iberia Airlines |
| Philadelphia International | PHL | American Airlines, US Airways |
| Phoenix Sky Harbor International | PHX | American Airlines, United Airlines, US Airways, Southwest Airlines |
| Seattle Tacoma International | SEA | American Airlines, Alaska Airlines, United Airlines |
| Louis Armstrong New Orleans International | MSY | Air Canada, AirTran Airways, Lufthansa, United Airlines, Southwest Airlines |
| Edmonton International | YEG | Air Canada, United Airlines |
| Montreal / Pierre Elliott Trudeau International | YUL | Air Canada, United Airlines |
| Vancouver International | YVR | Air Canada, All Nippon Airways, United Airlines |
| Calgary International | YYC | Air Canada |
| Lester B. Pearson International | YYZ | Air Canada, United Airlines |
| Hartsfield Jackson Atlanta International | ATL | Air France, AeroMéxico, Alitalia, Delta Air Lines, KLM Royal Dutch Airlines, United Airlines, Virgin Atlantic Airways |
| Charles de Gaulle International | CDG | Air France, Delta Air Lines, Lufthansa, United Airlines |
| Chhatrapati Shivaji International | BOM | Air India Limited, United Airlines |
| El Dorado International | BOG | Avianca - Aerovias Nacionales de Colombia, United Airlines |
| El Salvador International | SAL | Avianca - Aerovias Nacionales de Colombia, United Airlines |
| General Edward Lawrence Logan International | BOS | JetBlue Airways, United Airlines |
| Fort Lauderdale Hollywood International | FLL | JetBlue Airways, United Airlines |
| Orlando International | MCO | JetBlue Airways, United Airlines |
| Palm Beach International | PBI | JetBlue Airways, United Airlines |
| Southwest Florida International | RSW | JetBlue Airways, United Airlines |
| Luis Munoz Marin International | SJU | JetBlue Airways, United Airlines |
| Cibao International | STI | JetBlue Airways |
| Tampa International | TPA | JetBlue Airways, United Airlines |
| Beijing Capital International | PEK | Air China, United Airlines |
| Shanghai Pudong International | PVG | Air China, United Airlines |
| Tocumen International | PTY | Copa Airlines, United Airlines |
| Amsterdam Schiphol | AMS | Delta Air Lines, KLM Royal Dutch Airlines, Lufthansa, United Airlines |
| Cincinnati Northern Kentucky International | CVG | Delta Air Lines, United Airlines |
| Detroit Metropolitan Wayne County | DTW | Delta Air Lines, United Airlines |
| Minneapolis-St Paul International/Wold-Chamberlain | MSP | Delta Air Lines, United Airlines |
| Salt Lake City International | SLC | Delta Air Lines |
| Keflavik International | KEF | Icelandair |
| Nashville International | BNA | AirTran Airways, United Airlines, Southwest Airlines |
| Chicago Midway International | MDW | AirTran Airways, Southwest Airlines |
| Barcelona International | BCN | Lufthansa, United Airlines |
| Belfast International | BFS | Lufthansa, United Airlines |
| Birmingham International | BHX | Lufthansa, United Airlines |
| Dublin | DUB | Lufthansa, United Airlines |
| Düsseldorf | DUS | Lufthansa, United Airlines |
| Edinburgh | EDI | Lufthansa, United Airlines |
| Leonardo da Vinci–Fiumicino | FCO | Lufthansa, United Airlines |
| Frankfurt am Main | FRA | Lufthansa, United Airlines |
| Glasgow International | GLA | Lufthansa, United Airlines |
| Hamburg | HAM | Lufthansa, United Airlines |
| Adolfo Suárez Madrid–Barajas | MAD | Lufthansa, United Airlines |
| Munich | MUC | Lufthansa, United Airlines |
| Malpensa International | MXP | Lufthansa, United Airlines |
| Shannon | SNN | Lufthansa, United Airlines |
| Stuttgart | STR | Lufthansa, United Airlines |
| Berlin-Tegel | TXL | Lufthansa, United Airlines |
| Geneva Cointrin International | GVA | Swiss International Air Lines, United Airlines |
| Zürich | ZRH | Swiss International Air Lines, United Airlines |
| Ben Gurion International | TLV | El Al Israel Airlines, United Airlines |
| Narita International | NRT | All Nippon Airways, United Airlines |
| Billy Bishop Toronto City Centre | YTZ | Porter Airlines |
| Stockholm-Arlanda | ARN | Scandinavian Airlines System, United Airlines |
| Copenhagen Kastrup | CPH | Scandinavian Airlines System |
| Oslo Gardermoen | OSL | Scandinavian Airlines System, United Airlines |
| Lisbon Portela | LIS | TAP Portugal, United Airlines, US Airways |
| Francisco de Sá Carneiro | OPO | TAP Portugal, US Airways |
| Albany International | ALB | United Airlines |
| V.C. Bird International | ANU | United Airlines |
| Queen Beatrix International | AUA | United Airlines |
| Austin Bergstrom International | AUS | United Airlines, Southwest Airlines |
| L.F. Wade International International | BDA | United Airlines |
| Flamingo International | BON | United Airlines |
| Rafael Hernandez | BQN | United Airlines |
| Burlington International | BTV | United Airlines |
| Buffalo Niagara International | BUF | United Airlines |
| Baltimore/Washington International Thurgood Marshall | BWI | United Airlines |
| Philip S. W. Goldson International | BZE | United Airlines |
| Charleston Air Force Base-International | CHS | United Airlines |
| Cleveland Hopkins International | CLE | United Airlines |
| Port Columbus International | CMH | United Airlines |
| Cancún International | CUN | United Airlines |
| James M Cox Dayton International | DAY | United Airlines |
| Ronald Reagan Washington National | DCA | United Airlines |
| Indira Gandhi International | DEL | United Airlines |
| Denver International | DEN | United Airlines, Southwest Airlines |
| Des Moines International | DSM | United Airlines |
| Owen Roberts International | GCM | United Airlines |
| Gerald R. Ford International | GRR | United Airlines |
| Guarulhos - Governador André Franco Montoro International | GRU | United Airlines |
| Piedmont Triad International | GSO | United Airlines |
| Greenville Spartanburg International | GSP | United Airlines |
| La Aurora | GUA | United Airlines |
| Daniel K Inouye International | HNL | United Airlines |
| Washington Dulles International | IAD | United Airlines |
| George Bush Intercontinental Houston | IAH | United Airlines |
| Indianapolis International | IND | United Airlines |
| Ithaca Tompkins Regional | ITH | United Airlines |
| Jacksonville International | JAX | United Airlines |
| McCarran International | LAS | United Airlines |
| Los Angeles International | LAX | United Airlines, Virgin America |
| Jorge Chávez International | LIM | United Airlines |
| Daniel Oduber Quiros International | LIR | United Airlines |
| Sangster International | MBJ | United Airlines |
| Kansas City International | MCI | United Airlines |
| Memphis International | MEM | United Airlines |
| Licenciado Benito Juarez International | MEX | United Airlines |
| Manchester | MHT | United Airlines |
| General Mitchell International | MKE | United Airlines |
| Dane County Regional Truax Field | MSN | United Airlines |
| Myrtle Beach International | MYR | United Airlines |
| Lynden Pindling International | NAS | United Airlines |
| Will Rogers World | OKC | United Airlines |
| Eppley Airfield | OMA | United Airlines |
| Norfolk International | ORF | United Airlines |
| Portland International | PDX | United Airlines |
| Pittsburgh International | PIT | United Airlines |
| Providenciales | PLS | United Airlines |
| Gregorio Luperon International | POP | United Airlines |
| Piarco International | POS | United Airlines |
| Punta Cana International | PUJ | United Airlines |
| Theodore Francis Green State | PVD | United Airlines |
| Licenciado Gustavo Díaz Ordaz International | PVR | United Airlines |
| Portland International Jetport | PWM | United Airlines |
| Raleigh Durham International | RDU | United Airlines |
| Richmond International | RIC | United Airlines |
| Greater Rochester International | ROC | United Airlines |
| San Diego International | SAN | United Airlines |
| Ramón Villeda Morales International | SAP | United Airlines |
| San Antonio International | SAT | United Airlines |
| Savannah Hilton Head International | SAV | United Airlines |
| Louisville International Standiford Field | SDF | United Airlines |
| Las Américas International | SDQ | United Airlines |
| San Francisco International | SFO | United Airlines, Virgin America |
| Los Cabos International | SJD | United Airlines |
| Juan Santamaria International | SJO | United Airlines |
| John Wayne-Orange County | SNA | United Airlines |
| St Louis Lambert International | STL | United Airlines, Southwest Airlines |
| Cyril E. King | STT | United Airlines |
| Princess Juliana International | SXM | United Airlines |
| Syracuse Hancock International | SYR | United Airlines |
| Tulsa International | TUL | United Airlines |
| McGhee Tyson | TYS | United Airlines |
| Hewanorra International | UVF | United Airlines |
| Northwest Arkansas Regional | XNA | United Airlines |
| Halifax / Stanfield International | YHZ | United Airlines |
| Ottawa Macdonald-Cartier International | YOW | United Airlines |
| Quebec Jean Lesage International | YQB | United Airlines |
| Greater Moncton International | YQM | United Airlines |
| St. John's International | YYT | United Airlines |
| Grand Bahama International | FPO | Bahamasair |
| William P Hobby | HOU | Southwest Airlines |
