Book United Flights to Ontario (ONT) from $148

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Find flights to Ontario (ONT)

Denver (DEN) to Ontario (ONT)

Depart Wed 22 Aug 2018,
Return Thu 6 Sep 2018
from$ 148*Viewed: 2 hours ago

San Francisco (SFO) to Ontario (ONT)

Depart Mon 12 Nov 2018,
Return Tue 27 Nov 2018
from$ 231*Viewed: 1 hour ago

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

Depart Wed 7 Nov 2018,
Return Thu 22 Nov 2018
from$ 338*Viewed: 2 hours ago

Chicago (ORD) to Ontario (ONT)

Depart Wed 7 Nov 2018,
Return Thu 22 Nov 2018
from$ 284*Viewed: 1 hour ago

Seattle (SEA) to Ontario (ONT)

Depart Sat 3 Nov 2018,
Return Sun 18 Nov 2018
from$ 206*Viewed: 1 hour ago

Boston (BOS) to Ontario (ONT)

Depart Tue 30 Oct 2018,
Return Wed 14 Nov 2018
from$ 330*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.

Book early and get the lowest airfares to Ontario

from
to
Type
Dates
Price*
Denver (DEN)
to Ontario (ONT)
Roundtrip
Depart Wed 22 Aug 2018
Return Thu 6 Sep 2018
from$ 148*Viewed: 2 hours ago
Sacramento (SMF)
to Ontario (ONT)
Roundtrip
Depart Wed 7 Nov 2018
Return Thu 22 Nov 2018
from$ 148*Viewed: 1 hour ago
Phoenix (PHX)
to Ontario (ONT)
Roundtrip
Depart Wed 31 Oct 2018
Return Thu 15 Nov 2018
from$ 182*Viewed: 1 hour ago
Portland, OR (PDX)
to Ontario (ONT)
Roundtrip
Depart Tue 30 Oct 2018
Return Wed 14 Nov 2018
from$ 188*Viewed: 1 hour ago
San Antonio (SAT)
to Ontario (ONT)
Roundtrip
Depart Thu 6 Sep 2018
Return Fri 21 Sep 2018
from$ 191*Viewed: 1 hour ago
Austin (AUS)
to Ontario (ONT)
Roundtrip
Depart Fri 24 Aug 2018
Return Sat 8 Sep 2018
from$ 204*Viewed: 3 hours ago
Reno (RNO)
to Ontario (ONT)
Roundtrip
Depart Sun 4 Nov 2018
Return Mon 19 Nov 2018
from$ 204*Viewed: 1 hour ago
Eugene (EUG)
to Ontario (ONT)
Roundtrip
Depart Wed 31 Oct 2018
Return Thu 15 Nov 2018
from$ 204*Viewed: 14 minutes ago
Seattle (SEA)
to Ontario (ONT)
Roundtrip
Depart Sat 3 Nov 2018
Return Sun 18 Nov 2018
from$ 206*Viewed: 1 hour ago
Orlando (MCO)
to Ontario (ONT)
Roundtrip
Depart Tue 16 Oct 2018
Return Wed 31 Oct 2018
from$ 214*Viewed: 42 minutes 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.

Things to do in Ontario

Fly to Ontario with United Airlines from over 200 airports within the United States and an additional 100 airports internationally.

Ontario’s top attractions

  • Visit the Ontario Museum of History and Art for an overview of the region.
  • Tour the grand Graber Olive House, home to the oldest operating olive packer in the U.S.
  • Shop till you drop at Ontario Mills.
  • Take the family to Scandia Ontario, an amusement park with rides, mini golf, go karts and games.
  • Head to iFLY Ontario for an indoor skydiving experience.
  • Relax on the beaches in nearby Los Angeles County.

Best time to travel to Ontario

Visit Ontario during the summer and fall for sunny and dry weather. The Los Angeles County Fair is held for four weeks each fall, beginning on Labor Day. Taste diverse food and drinks from near and far, see farm animals, learn more about agriculture and enjoy live entertainment. The Lights on Miracle Hill in nearby Walnut is the perfect winter warm up for the holidays.

Weather in Ontario

71 °FTuesday08/14/2018
86 °FWednesday08/15/2018
85 °FThursday08/16/2018
88 °FFriday08/17/2018
80 °FSaturday08/18/2018
79 °FSunday08/19/2018
77 °FMonday08/20/2018
Powered by: OpenWeatherMap.org