FFL Helper

FFL Helper / Seattle / Chicago / August 2026

SEA → CHI · 2026-08

Seattle to Chicago in August 2026

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

Lowest this month $170
Highest this month $240
Sample fare $125
Airports SEA–ORD
Search August 2026 tickets

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Other months: August 2026 · September 2026 · Full route

August 2026 price calendar

August 2026

From $170 · up to $240

Mon
Tue
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23 $240 24 $170 25 $180
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Dated fares

Chicago CHI

$125

Sep 18, 7:45pm · 7h 53m · 1 stop

SEA → ORD · Frontier Airlines

Tickets

Chicago CHI

$150

Sep 12, 12:16am · 4h 4m · 0 stops

SEA → ORD · Alaska Airlines

Tickets

Booking SEA to CHI in August 2026

This page is only August 2026 on the Seattle 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 Seattle to Chicago in August 2026.