FFL Helper

FFL Helper / Ontario / Chicago / August 2026

ONT → CHI · 2026-08

Ontario to Chicago in August 2026

Dated one-way fares from Ontario to Chicago in August 2026. Use the calendar to see which days are cheaper.

Lowest this month $110
Highest this month $115
Sample fare $109
Airports ONT–ORD
Search August 2026 tickets

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Other months: August 2026 · September 2026 · Full route

August 2026 price calendar

August 2026

From $110 · up to $115

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Dated fares

Chicago CHI

$110

Aug 30, 8:17am · 10h 14m · 1 stop

ONT → MDW · Frontier Airlines

Tickets

Chicago CHI

$115

Aug 29, 7:56pm · 15h 40m · 1 stop

ONT → ORD · Frontier Airlines

Tickets

Booking ONT to CHI in August 2026

This page is only August 2026 on the Ontario to Chicago route. Open the full route if you want the next months side by side.

Prices move as seats sell. Confirm the live itinerary before you book Ontario to Chicago in August 2026.