Ontario → Chicago

Frontier Airlines · Round Trip · Nonstop

Save $34 (17% off)

Compared to the typical price of $205

$171$205

per person · round trip

Flight Details

Cabin

Economy

Departs

Apr 15, 2026

Returns

Apr 18, 2026

Complete your trip with these deals.

Find the best hotel deals for your stay.

Get around with affordable rental car deals.

Explore tours, activities, and experiences.