FFL Helper
Washington WAS
$141
IND → IAD · Frontier Airlines
FFL Helper / Indianapolis / Washington / September 2026
IND → WAS · 2026-09
Indianapolis to Washington in September 2026
Dated one-way fares from Indianapolis to Washington in September 2026. Use the calendar to see which days are cheaper.
Lowest this month
$141
Highest this month
$141
Sample fare
$130
Airports
IND–IAD
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Other months: August 2026 · September 2026 · Full route
September 2026 price calendar
September 2026
From $141
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$141
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Dated fares
Booking IND to WAS in September 2026
This page is only September 2026 on the Indianapolis to Washington 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 Indianapolis to Washington in September 2026.