FFL Helper

FFL Helper / MDW (Chicago) / Ontario / September 2026

MDW → ONT · 2026-09

MDW (Chicago) to Ontario in September 2026

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

Lowest this month $116
Highest this month $142
Sample fare $111
Airports MDW–ONT
Search September 2026 tickets

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Other months: August 2026 · September 2026 · Full route

September 2026 price calendar

September 2026

From $116 · up to $142

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Tue
Wed
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Sun
1 $133 2 $131 3 $136 4 $136 5 $142 6 $129 7 $129 8 $129 9 $129 10 $116
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Dated fares

Ontario ONT

$116

Sep 10, 12:54pm · 7h 45m · 1 stop

MDW → ONT · Frontier Airlines

Tickets

Booking MDW to ONT in September 2026

This page is only September 2026 on the MDW (Chicago) to Ontario 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 MDW (Chicago) to Ontario in September 2026.