Book United Ontario to Chicago flight deals from $288

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Search flights from Ontario to Chicago (ONT - ORD)

October

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Wednesday 17th

Return Thursday 1st
from$ 288*Viewed: 2 hours ago

Tuesday 23rd

Return Wednesday 7th
from$ 288*Viewed: 2 hours ago

Tuesday 30th

Return Wednesday 14th
from$ 288*Viewed: 2 hours ago

November

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Wednesday 7th

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from$ 288*Viewed: 2 hours ago

Wednesday 14th

Return Thursday 29th
from$ 288*Viewed: 2 hours ago

Tuesday 27th

Return Wednesday 12th
from$ 288*Viewed: 2 hours ago

December

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Saturday 1st

Return Sunday 16th
from$ 307*Viewed: 2 hours ago

Monday 3rd

Return Tuesday 18th
from$ 313*Viewed: 2 hours ago

Tuesday 4th

Return Wednesday 19th
from$ 345*Viewed: 2 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..
Cruise ships and tour boats docked by a ferris wheel and urban buildings at Navy Pier in Chicago

Plan ahead for flights from Ontario to Chicago

from
to
Type
Dates
Price*
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart Tue 9 Oct 2018
Return Wed 24 Oct 2018
from$ 288*Viewed: 2 hours ago
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart Tue 16 Oct 2018
Return Wed 31 Oct 2018
from$ 288*Viewed: 2 hours ago
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart Wed 17 Oct 2018
Return Thu 1 Nov 2018
from$ 288*Viewed: 2 hours ago
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart Tue 23 Oct 2018
Return Wed 7 Nov 2018
from$ 288*Viewed: 2 hours ago
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart Mon 29 Oct 2018
Return Tue 13 Nov 2018
from$ 288*Viewed: 2 hours ago
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart Tue 30 Oct 2018
Return Wed 14 Nov 2018
from$ 288*Viewed: 2 hours ago
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart Wed 7 Nov 2018
Return Thu 22 Nov 2018
from$ 288*Viewed: 2 hours ago
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart Tue 13 Nov 2018
Return Wed 28 Nov 2018
from$ 288*Viewed: 2 hours ago
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart Wed 14 Nov 2018
Return Thu 29 Nov 2018
from$ 288*Viewed: 2 hours ago
Ontario (ONT)
to Chicago (ORD)
Roundtrip
Depart Tue 27 Nov 2018
Return Wed 12 Dec 2018
from$ 288*Viewed: 2 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.