AirHint found the following cheapest one-way flights from Austin (AUS) to Dallas (DAL) in August 2025 (see full year).

One-Way flights

26 Aug	Southwest Airlines	direct
13 Aug	Southwest Airlines	direct
18 Aug	Southwest Airlines	direct
16 Aug	Southwest Airlines	direct
12 Aug	Southwest Airlines	direct
06 Aug	Southwest Airlines	direct
07 Aug	Southwest Airlines	direct
09 Aug	Southwest Airlines	direct
03 Aug	Southwest Airlines	direct
05 Aug	Southwest Airlines	direct

Also check the deals for return flights from Austin to Dallas in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest one-way flights from Austin to Dallas in August from $48

One-Way flights