FFL Helper
Baltimore BWI
$216
STL → BWI · Frontier Airlines
FFL Helper / St Louis / Baltimore / August 2026
STL → BWI · 2026-08
St Louis to Baltimore in August 2026
Dated one-way fares from St Louis to Baltimore in August 2026. Use the calendar to see which days are cheaper.
Lowest this month
$216
Highest this month
$216
Sample fare
$216
Airports
STL–BWI
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Other months: August 2026 · Full route
August 2026 price calendar
August 2026
From $216
Mon
Tue
Wed
Thu
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Sun
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$216
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Dated fares
Booking STL to BWI in August 2026
This page is only August 2026 on the St Louis to Baltimore route. Open the full route if you want the next months side by side.
Prices move as seats sell. Confirm the live itinerary before you book St Louis to Baltimore in August 2026.