← Back to Deals
Ontario California aerial with San Gabriel Mountains
ONT
Ontario
Baltimore Inner Harbor at night
BWI
Baltimore

Ontario → Baltimore

Frontier Airlines · Round Trip · Nonstop

Save $62 (27% off)
Compared to the typical price of $228
$166$228

per person · round trip

Book This Deal

Flight Details

Cabin
Economy
Departs
May 3, 2026
Returns
May 6, 2026

Planning your trip to Baltimore?

Complete your trip with these deals.

Hotels in Baltimore

Find the best hotel deals for your stay.

Explore →

Rental Cars in Baltimore

Get around with affordable rental car deals.

Explore →

Adventures in Baltimore

Explore tours, activities, and experiences.

Explore →