FFL Helper

FFL Helper / San Francisco / Chicago / October 2026

SFO → CHI · 2026-10

San Francisco to Chicago in October 2026

Dated one-way fares from San Francisco to Chicago in October 2026. Use the calendar to see which days are cheaper.

Lowest this month $98
Highest this month $121
Sample fare $85
Airports SFO–ORD
Search October 2026 tickets

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Other months: August 2026 · September 2026 · October 2026 · Full route

October 2026 price calendar

October 2026

From $98 · up to $121

Mon
Tue
Wed
Thu
Fri
Sat
Sun
1
2
3
4
5
6
7 $98 8 $110 9 $121
10
11
12
13
14
15
16
17
18
19
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23
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26
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Dated fares

Chicago CHI

$85

Sep 17, 6:04am · 16h 19m · 1 stop

SFO → ORD · Frontier Airlines

Tickets

Chicago CHI

$89

Sep 18, 8:24pm · 7h 14m · 1 stop

SFO → ORD · Frontier Airlines

Tickets

Chicago CHI

$94

Sep 11, 11:58pm · 10h 1m · 1 stop

SFO → MDW · Frontier Airlines

Tickets

Chicago CHI

$95

Sep 25, 11:58pm · 10h 1m · 1 stop

SFO → MDW · Frontier Airlines

Tickets

Booking SFO to CHI in October 2026

This page is only October 2026 on the San Francisco 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 San Francisco to Chicago in October 2026.