FFL Helper
Austin AUS
$94
BWI → AUS · Frontier Airlines
FFL Helper / Baltimore / Austin / September 2026
BWI → AUS · 2026-09
Baltimore to Austin in September 2026
Dated one-way fares from Baltimore to Austin in September 2026. Use the calendar to see which days are cheaper.
Lowest this month
$102
Highest this month
$102
Sample fare
$94
Airports
BWI–AUS
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Other months: September 2026 · October 2026 · Full route
September 2026 price calendar
September 2026
From $102
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Tue
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Thu
Fri
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Sun
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9
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$102
18
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Dated fares
Booking BWI to AUS in September 2026
This page is only September 2026 on the Baltimore to Austin 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 Baltimore to Austin in September 2026.