Located in Ontario, Ontario International Airport flies 67 unique routes to other cities, operated by 7 different airlines. Scroll down for a list of destinations and airlines served by Ontario International Airport.
| Name: | Ontario International Airport |
| IATA Code: | ONT |
| City Code: | ONT |
| City: | Ontario |
| Region/State: | CA |
| Country: | US |
| Local Time: | 18:41 (PST) Wed, May 1 |
| Airport Name | City | Iata | Airlines |
|---|---|---|---|
| Logan International Airport | Boston | BOS | American Airlines, Southwest |
| Douglas Airport | Charlotte | CLT | American Airlines |
| Port Columbus International Airport | Columbus | CMH | American Airlines, Southwest |
| Ronald Reagan National Airport | Washington | DCA | American Airlines, Southwest |
| Denver International Airport | Denver | DEN | American Airlines, United Airlines, Southwest |
| Dallas/Ft. Worth International Airport | Dallas | DFW | American Airlines, United Airlines |
| Des Moines Airport | Des Moines | DSM | American Airlines, Southwest |
| Wayne County Airport | Detroit | DTW | American Airlines |
| Newark Liberty International Airport | New York | EWR | American Airlines, Southwest |
| Orlando International Airport | Orlando | MCO | American Airlines, Southwest |
| Miami International Airport | Miami | MIA | American Airlines |
| General Mitchell Airport | Milwaukee | MKE | American Airlines, Southwest |
| St Paul International Airport | Minneapolis | MSP | American Airlines, Southwest |
| O'Hare International Airport | Chicago | ORD | American Airlines |
| Sky Harbor International Airport | Phoenix | PHX | American Airlines, Southwest |
| Norman Y. Mineta International | San Jose | SJC | American Airlines, Southwest |
| Tucson International Airport | Tucson | TUS | American Airlines, Southwest |
| Miguel Hidal Airport | Guadalajara | GDL | Aeromexico, Volaris |
| Juarez International Airport | Mexico City | MEX | Aeromexico |
| Portland International Airport | Portland | PDX | Alaska Airlines, Southwest |
| Seattle/Tacoma International Airport | Seattle | SEA | Alaska Airlines, Southwest |
| Salt Lake City International Airport | Salt Lake City | SLC | Delta Airlines, Southwest |
| Bismarck Airport | Bismarck | BIS | United Airlines |
| George Bush Intercontinental Airport | Houston | IAH | United Airlines |
| San Francisco International Airport | San Francisco | SFO | United Airlines |
| Northwest Arkansas Regional Airport | Fayetteville | XNA | United Airlines |
| Albuquerque International Airport | Albuquerque | ABQ | Southwest |
| Albany International Airport | Albany | ALB | Southwest |
| Hartsfield-Jackson Atlanta International Airport | Atlanta | ATL | Southwest |
| Austin-Bergstrom International Airport | Austin | AUS | Southwest |
| Bradley International Airport | Hartford | BDL | Southwest |
| Birmingham Airport | Birmingham | BHM | Southwest |
| Nashville Metropolitan Airport | Nashville | BNA | Southwest |
| Boise Air Terminal (Gowen Field) | Boise | BOI | Southwest |
| Balt./Wash. International Airport | Baltimore | BWI | Southwest |
| Hopkins International Airport | Cleveland | CLE | Southwest |
| Love Field | Dallas | DAL | Southwest |
| El Paso International Airport | El Paso | ELP | Southwest |
| Ft. Lauderdale International Airport | Fort Lauderdale | FLL | Southwest |
| Spokane International Airport | Spokane | GEG | Southwest |
| Hobby Airport | Houston | HOU | Southwest |
| Indianapolis International Airport | Indianapolis | IND | Southwest |
| Long Island MacArthur Airport | Islip | ISP | Southwest |
| Jacksonville International Airport | Jacksonville | JAX | Southwest |
| McCarran International Airport | Las Vegas | LAS | Southwest |
| Los Angeles International Airport | Los Angeles | LAX | Southwest |
| La Guardia Airport | New York | LGA | Southwest |
| Little Rock Regional Airport | Little Rock | LIT | Southwest |
| Odessa Regional Airport | Midland | MAF | Southwest |
| Kansas City International Airport | Kansas City | MCI | Southwest |
| Midway Airport | Chicago | MDW | Southwest |
| Louis Armstrong International Airport | New Orleans | MSY | Southwest |
| Metropolitan Oakland International Airport | Oakland | OAK | Southwest |
| Will Rogers Airport | Oklahoma City | OKC | Southwest |
| Eppley Airfield | Omaha | OMA | Southwest |
| Philadelphia International Airport | Philadelphia | PHL | Southwest |
| Pittsburgh International Airport | Pittsburgh | PIT | Southwest |
| Theodore Francis Airport | Providence | PVD | Southwest |
| Raleigh/Durham Airport | Raleigh/Durham | RDU | Southwest |
| Reno/Tahoe International Airport | Reno | RNO | Southwest |
| San Diego International Airport | San Diego | SAN | Southwest |
| San Antonio International Airport | San Antonio | SAT | Southwest |
| Standiford Field | Louisville | SDF | Southwest |
| Sacramento International Airport | Sacramento | SMF | Southwest |
| Lambert-St Louis Int'l Airport | St Louis | STL | Southwest |
| Tampa International Airport | Tampa | TPA | Southwest |
| Tulsa International Airport | Tulsa | TUL | Southwest |
