Phoenix to Chicago in September 2026

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

Lowest this month $107

Highest this month $191

Sample fare $106

Airports AZA–RFD

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September 2026 price calendar

From $107 · up to $191

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1 $184 2 $123 3 $184 4 $191 5 $142 6 $136 7 $136 8 $136 9 $136 10 $135 11 $121 12 $121 13 $121 14 $121 15 $121 16 $121 17 $107 18 $107 19 $107 20 $107 21 $107 22 $107 23 $107 24 $107

Chicago CHI

$107

Sep 17, 3:22pm · 7h 23m · 1 stop

PHX → ORD · Frontier Airlines

Chicago CHI

$107

Sep 24, 3:22pm · 7h 23m · 1 stop

PHX → ORD · Frontier Airlines

This page is only September 2026 on the Phoenix 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 Phoenix to Chicago in September 2026.