← Back to Deals
Book This Deal
BWI
Baltimore
STL
Saint Louis
Baltimore → Saint Louis
Frontier Airlines · Round Trip · Nonstop
Save $83 (31% off)
Compared to the typical price of $270
$187$270
per person · round trip
Flight Details
Cabin
Economy
Departs
Apr 18, 2026
Returns
Apr 19, 2026
Planning your trip to Saint Louis?
Complete your trip with these deals.
Hotels in Saint Louis
Find the best hotel deals for your stay.
Coming soon →Rental Cars in Saint Louis
Get around with affordable rental car deals.
Coming soon →Adventures in Saint Louis
Explore tours, activities, and experiences.
Coming soon →