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Flights to and from Ontario (ONT): 34 Nonstop Destinations

Ontario International Airport, Ontario, United States · nonstop from 32 cities

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International

6 nonstop destinations

Domestic

28 nonstop destinations

Nonstop service from

32 cities

Airlines Flying Nonstop from ONT

Who actually operates the nonstops from Ontario, from published airline schedules as of 25 August 2026— ranked by the number of destinations each airline serves without a stop. Each destination below names its carriers.

Southwest Airlineseconomy only12 nonstop destinations
Frontier Airlineseconomy only6 nonstop destinations
Alaska Airlines5 nonstop destinations
American Airlines4 nonstop destinations
United Airlines4 nonstop destinations
Delta Air Lines3 nonstop destinations
Volariseconomy only3 nonstop destinations
Avianca El Salvador1 nonstop destination
China Airlines1 nonstop destination
JetBlueseasonal1 nonstop destination
Starlux Airlines1 nonstop destination

International Destinations from ONT

Colombia

1 city
BogotaBOG

Mexico

2 cities
Puerto VallartaPVRSan Jose Del CaboSJD

El Salvador

1 city
San SalvadorSALAvianca El Salvador

Taiwan

1 city
TaipeiTPEChina Airlines, Starlux Airlines

Canada

1 city
TorontoYYZ

Domestic Destinations from ONT

AtlantaATLDelta Air LinesAustinAUSSouthwest Airlines (economy)CharlotteCLTAmerican AirlinesChicagoORDAmerican Airlines, United AirlinesCincinnatiCVGColumbusCMHDallasDFWAmerican Airlines, Frontier Airlines (economy)DenverDENFrontier Airlines (economy), Southwest Airlines (economy), United AirlinesHonoluluHNLAlaska Airlines, Southwest Airlines (economy)HoustonIAHFrontier Airlines (economy), United AirlinesKansas CityMCINew YorkEWRNew YorkJFKJetBlueNew YorkLGAOrlandoMCOPalm SpringsPSPPhoenixPHXAmerican Airlines, Southwest Airlines (economy)PittsburghPITPortlandPDXAlaska AirlinesRaleigh-durhamRDUSalt Lake CitySLCDelta Air LinesSan AntonioSATSan FranciscoSFOFrontier Airlines (economy), United AirlinesSanta RosaSTSAlaska AirlinesSeattleSEAAlaska Airlines, Delta Air Lines, Frontier Airlines (economy)TampaTPAWashingtonDCAWashington, D.C.IAD

Fly Nonstop to Ontario (ONT) From

AtlantaATLDelta Air LinesAustinAUSBogotaBOGCharlotteCLTAmerican AirlinesChicagoORDUnited AirlinesCincinnatiCVGColumbusCMHDallasDFWAmerican Airlines, Frontier Airlines (economy)DenverDENFrontier Airlines (economy), Southwest Airlines (economy), United AirlinesHonoluluHNLHoustonIAHFrontier Airlines (economy), United AirlinesKansas CityMCINew YorkJFKJetBlueOrlandoMCOPalm SpringsPSPPhoenixPHXAmerican Airlines, Southwest Airlines (economy)PittsburghPITPortlandPDXAlaska AirlinesPuerto VallartaPVRRaleigh-durhamRDUSalt Lake CitySLCSan AntonioSATSan FranciscoSFOFrontier Airlines (economy), United AirlinesSan Jose Del CaboSJDSan SalvadorSALSanta RosaSTSAlaska AirlinesSeattleSEAAlaska Airlines, Delta Air Lines, Frontier Airlines (economy)TaipeiTPETampaTPATorontoYYZWashingtonDCAWashington, D.C.IAD

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Ontario
Ontario International Airport• United States
ONT