FFL Helper
San Juan SJU
$91
ATL → SJU · Frontier Airlines
FFL Helper / Atlanta / San Juan / September 2026
ATL → SJU · 2026-09
Atlanta to San Juan in September 2026
Dated one-way fares from Atlanta to San Juan in September 2026. Use the calendar to see which days are cheaper.
Lowest this month
$91
Highest this month
$91
Sample fare
$91
Airports
ATL–SJU
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Other months: September 2026 · Full route
September 2026 price calendar
September 2026
From $91
Mon
Tue
Wed
Thu
Fri
Sat
Sun
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2
3
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9
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12
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14
$91
15
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30
Dated fares
Booking ATL to SJU in September 2026
This page is only September 2026 on the Atlanta to San Juan 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 Atlanta to San Juan in September 2026.