Direct flights from Ontario (ONT)
From Ontario International Airport (ONT), 10 airlines fly nonstop to 23 destinations, led by Frontier Airlines, Alaska Airlines, and American Airlines. It is enough volume to carry real upgrade and award inventory, though the best seats to Seattle tend to go quickly. 2LNR monitors confirmed space on the Ontario routes flown by Alaska Airlines, American Airlines, and Delta Air Lines so you can act while it is still available.
Route data refreshed . Routes and carriers reflect the schedule data behind 2LNR's route map.
About Ontario International Airport (ONT)
Ontario International Airport (ONT) is the airport serving Ontario, California, United States. Its ICAO code is KONT. Departure and arrival times at ONT are local to the America/Los_Angeles time zone. Its nonstop network reaches 23 destinations across 4 countries.
Confirmed upgrade & award space on Ontario routes
2LNR tracks confirmed upgrade and award space on Alaska Airlines, American Airlines, and Delta Air Lines, segment by segment and date by date. Pick any Ontario destination below to open a calendar of departures, the next 14 days free on every product and the full horizon on Pro.
See real availability
Confirmed upgrade and award seats on each ONT route, checked against live inventory so you know what is open before you book.
Set an alert
Premium inventory turns over fast. Watch a Ontario route and 2LNR notifies you when space appears.
Plan on the map
Explore every ONT nonstop on the interactive route map, with connections and route statistics.
All nonstop destinations from Ontario (ONT)
These are the city pairs behind flights to and from Ontario: 23 nonstop destinations with active service at Ontario International Airport. Each route links to its confirmed upgrade and award availability.
- Ontario to Atlanta flights (ONT-ATL)
- Ontario to Boise flights (ONT-BOI)
- Ontario to Charlotte flights (ONT-CLT)
- Ontario to Chicago flights (ONT-ORD)
- Ontario to Colonia Nuevo Mexico flights (ONT-BJX)
- Ontario to Dallas flights (ONT-DFW)
- Ontario to Denver flights (ONT-DEN)
- Ontario to Guadalajara flights (ONT-GDL)
- Ontario to Honolulu flights (ONT-HNL)
- Ontario to Houston flights (ONT-IAH)
- Ontario to Las Vegas flights (ONT-LAS)
- Ontario to Morelia flights (ONT-MLM)
- Ontario to New York flights (ONT-JFK)
- Ontario to Oakland flights (ONT-OAK)
- Ontario to Phoenix flights (ONT-PHX)
- Ontario to Portland flights (ONT-PDX)
- Ontario to Sacramento flights (ONT-SMF)
- Ontario to Salt Lake City flights (ONT-SLC)
- Ontario to San Francisco flights (ONT-SFO)
- Ontario to San Salvador flights (ONT-SAL)
- Ontario to Santa Rosa flights (ONT-STS)
- Ontario to Seattle flights (ONT-SEA)
- Ontario to Taipei flights (ONT-TPE)
Airlines that fly out of Ontario (ONT)
The carriers with nonstop service from Ontario International Airport, ordered by how many destinations each one reaches. Each links to that airline's full route map.
Alternative airports near Ontario (ONT)
Nearby airports with nonstop service of their own, closest first. Distances are great-circle between the two airports' coordinates, not driving time, so check the ground connection before you treat one as a substitute.
- Santa Ana (SNA) (30 miles, 38 nonstop destinations)
- Long Beach (LGB) (36 miles, 4 nonstop destinations)
- Hawthorne (HHR) (43 miles, 1 nonstop destination)
- Burbank (BUR) (45 miles, 27 nonstop destinations)
- Los Angeles (LAX) (48 miles, 177 nonstop destinations)
- Santa Monica (SMO) (49 miles, 4 nonstop destinations)
Frequently asked questions about Ontario (ONT)
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Never miss ONT upgrade or award space
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