FFL Helper
Raleigh RDU
$142
IAD → RDU · Frontier Airlines
FFL Helper / Washington / Raleigh / September 2026
WAS → RDU · 2026-09
Washington to Raleigh in September 2026
Dated one-way fares from Washington to Raleigh in September 2026. Use the calendar to see which days are cheaper.
Lowest this month
$142
Highest this month
$142
Sample fare
$90
Airports
DCA–RDU
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Other months: August 2026 · September 2026 · Full route
September 2026 price calendar
September 2026
From $142
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$142
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Dated fares
Booking WAS to RDU in September 2026
This page is only September 2026 on the Washington to Raleigh 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 Washington to Raleigh in September 2026.