FFL Helper

FFL Helper / Ontario / Chicago

ONT → CHI

Ontario (ONT) to Chicago (CHI)

Compare one-way fares for flights from Ontario to Chicago.

Lowest fare $114
Distance 1,712 mi
Flight time 6h 38m
Airports ONT–ORD
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By month: October 2026 from $119 · November 2026 from $114

Price calendar

October 2026

From $119

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November 2026

From $114

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Upcoming dates

Chicago CHI

$114

Nov 05, 8:35pm · 6h 38m · 1 stop

ONT → ORD · Frontier Airlines

Tickets

Chicago CHI

$119

Oct 26, 6:15am · 16h 9m · 1 stop

ONT → ORD · Frontier Airlines

Tickets

About this route

This calendar shows dated one-way fares from Ontario to Chicago. Use it to see which days are cheaper before you search tickets.

Flight time and airport codes on this page are for the sample itinerary we have on file. Always confirm the live routing when you book Ontario to Chicago.