Chicago to San Francisco in August 2026

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

Lowest this month $166

Highest this month $195

Sample fare $83

Airports ORD–SFO

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August 2026 price calendar

From $166 · up to $195

Mon

Tue

Wed

Thu

Fri

Sat

Sun

23 $195 24 $181 25 $181 26 $166 27 $176 28 $185 29 $177 30 $183 31 $190

San Francisco SFO

$83

Sep 21, 1:01pm · 11h 27m · 1 stop

ORD → SFO · Frontier Airlines

San Francisco SFO

$85

Oct 19, 6:30am · 6h 35m · 1 stop

ORD → SFO · Frontier Airlines

San Francisco SFO

$85

Sep 17, 6:25am · 15h 23m · 1 stop

MDW → SFO · Frontier Airlines

San Francisco SFO

$87

Sep 19, 4:35pm · 7h 53m · 1 stop

ORD → SFO · Frontier Airlines

San Francisco SFO

$91

Nov 04, 6:30am · 6h 47m · 1 stop

ORD → SFO · Frontier Airlines

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