Compare United Flights from Ontario (ONT) starting at $134

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Find flight deals from Ontario (ONT)

Ontario (ONT) to San Francisco (SFO)

Depart: 05/21/19,
Return: 06/04/19
from$ 245*Viewed: 6 hours ago

Ontario (ONT) to Denver (DEN)

Depart: 05/21/19,
Return: 06/04/19
from$ 211*Viewed: 6 hours ago

Ontario (ONT) to Chicago (ORD)

Depart: 05/21/19,
Return: 06/04/19
from$ 214*Viewed: 6 hours ago

Ontario (ONT) to New York/Newark (EWR)

Depart: 03/20/19,
Return: 04/03/19
from$ 294*Viewed: 6 hours ago

Ontario (ONT) to Orlando (MCO)

Depart: 04/09/19,
Return: 04/23/19
from$ 236*Viewed: 6 hours ago

Ontario (ONT) to Seattle (SEA)

Depart: 05/08/19,
Return: 05/22/19
from$ 174*Viewed: 6 hours ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Last minute best airfares from Ontario

Ontario (ONT) to San Francisco (SFO)

Depart: 02/28/19,
Return: 03/14/19
from$ 276*Viewed: 6 hours ago

Ontario (ONT) to Denver (DEN)

Depart: 02/28/19,
Return: 03/03/19
from$ 381*Viewed: 3 hours ago

Ontario (ONT) to Chicago (ORD)

Depart: 02/23/19,
Return: 03/09/19
from$ 264*Viewed: 6 hours ago

Ontario (ONT) to New York/Newark (EWR)

Depart: 02/27/19,
Return: 03/13/19
from$ 314*Viewed: 6 hours ago

Ontario (ONT) to Orlando (MCO)

Depart: 02/26/19,
Return: 03/12/19
from$ 236*Viewed: 6 hours ago

Ontario (ONT) to Seattle (SEA)

Depart: 02/27/19,
Return: 03/13/19
from$ 184*Viewed: 6 hours ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Book early and get the lowest fares from Ontario

from
to
Type
Dates
Price*
Ontario (ONT)
to Sacramento (SMF)
Roundtrip
Depart: 05/21/19
Return: 06/04/19
from$ 134*Viewed: 6 hours ago
Ontario (ONT)
to Portland, OR (PDX)
Roundtrip
Depart: 05/18/19
Return: 06/01/19
from$ 162*Viewed: 6 hours ago
Ontario (ONT)
to Seattle (SEA)
Roundtrip
Depart: 05/08/19
Return: 05/22/19
from$ 174*Viewed: 6 hours ago
Ontario (ONT)
to Dallas (DFW)
Roundtrip
Depart: 05/29/19
Return: 06/05/19
from$ 194*Viewed: 1 day ago
Ontario (ONT)
to Reno (RNO)
Roundtrip
Depart: 05/18/19
Return: 06/01/19
from$ 208*Viewed: 6 hours ago
Ontario (ONT)
to Denver (DEN)
Roundtrip
Depart: 05/21/19
Return: 06/04/19
from$ 211*Viewed: 6 hours ago
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart: 06/19/19
Return: 06/25/19
from$ 214*Viewed: 11 hours ago
Ontario (ONT)
to Medford (MFR)
Roundtrip
Depart: 05/21/19
Return: 06/04/19
from$ 218*Viewed: 6 hours ago
Ontario (ONT)
to Des Moines (DSM)
Roundtrip
Depart: 03/19/19
Return: 04/02/19
from$ 224*Viewed: 6 hours ago
Ontario (ONT)
to Boise (BOI)
Roundtrip
Depart: 05/21/19
Return: 06/04/19
from$ 230*Viewed: 6 hours ago
Ontario (ONT)
to Prague (PRG)
Roundtrip
Depart: 05/07/19
Return: 05/21/19
from$ 910*Viewed: 3 hours ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Ontario Airport information

Ontario is served by Ontario International Airport (ONT), located just two miles east of downtown. Access the airport’s free Wi-Fi before boarding your flight from Ontario.

Reaching the Ontario Airport

Local public buses connect from downtown Ontario. If your accommodations are located outside the city center, numerous Southern California operators offer bus service to the airport. For direct service, hire a taxi or pre-book an airport shuttle. The airport offers onsite car rentals and parking.