Deal found on August 12, 2026
San Diego to Chicago
$166$34752% off
Round trip
San Diego to Chicago usually costs around $347 round trip, now down to $166 on Frontier. That is a strong price for deep dish, lakefront views, and world class museums, with plenty of flight options this fall to fit your schedule.
Travel dates
Dates in September
e.g. Sep 5 – Sep 14 · 9 nights
Date options
10 at this price
Lowest we've seen
$95
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