FFL Helper
Detroit DTT
$123
TTN → DTW · Frontier Airlines
FFL Helper / Philadelphia / Detroit / September 2026
PHL → DTT · 2026-09
Philadelphia to Detroit in September 2026
Dated one-way fares from Philadelphia to Detroit in September 2026. Use the calendar to see which days are cheaper.
Lowest this month
$123
Highest this month
$123
Sample fare
$123
Airports
TTN–DTW
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Other months: August 2026 · September 2026 · Full route
September 2026 price calendar
September 2026
From $123
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$123
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Dated fares
Booking PHL to DTT in September 2026
This page is only September 2026 on the Philadelphia to Detroit 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 Philadelphia to Detroit in September 2026.