FFL Helper
Ontario ONT
$78
DFW → ONT · Frontier Airlines
FFL Helper / Dallas / Ontario / September 2026
DFW → ONT · 2026-09
Dallas to Ontario in September 2026
Dated one-way fares from Dallas to Ontario in September 2026. Use the calendar to see which days are cheaper.
Lowest this month
$120
Highest this month
$120
Sample fare
$78
Airports
DFW–ONT
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Other months: August 2026 · September 2026 · October 2026 · Full route
September 2026 price calendar
September 2026
From $120
Mon
Tue
Wed
Thu
Fri
Sat
Sun
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2
3
4
5
6
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8
9
10
$120
11
12
13
14
15
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17
18
19
20
21
22
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30
Dated fares
Booking DFW to ONT in September 2026
This page is only September 2026 on the Dallas to Ontario 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 Dallas to Ontario in September 2026.