FFL Helper
Seattle SEA
$179
JAX → SEA · United Airlines
FFL Helper / Jacksonville / Seattle / September 2026
JAX → SEA · 2026-09
Jacksonville to Seattle in September 2026
Dated one-way fares from Jacksonville to Seattle in September 2026. Use the calendar to see which days are cheaper.
Lowest this month
$179
Highest this month
$179
Sample fare
$179
Airports
JAX–SEA
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Other months: September 2026 · Full route
September 2026 price calendar
September 2026
From $179
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$179
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Dated fares
Booking JAX to SEA in September 2026
This page is only September 2026 on the Jacksonville to Seattle 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 Jacksonville to Seattle in September 2026.