This deal has expired.
It was found on July 20, 2026. Typical price for this route is $257. Fares like this come and go fast. Get the next one by email below.
Past deal
Chicago to Philadelphia
$145$25744% off
Round trip
This Chicago to Philadelphia fare is down to $145, about half off the usual price and part of a wider Frontier sale we're tracking this week across several cities. Philly makes an easy long weekend this fall for cheesesteaks, historic sites, and a quick train ride to New York or DC.
Travel dates
Dates in August
e.g. Aug 15 – Aug 24 · 9 nights
Date options
3 at this price
Lowest we've seen
$66
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