Cheapest return flights from Austin to Keflavik in August from $753

AirHint found the following cheapest return flights from Austin (AUS) to Keflavik (KEF) in August 2026 (see full year).

Return flights

13 Aug - 20 Aug Delta
20 Aug - 26 Aug Air Canada
03 Aug - 10 Aug United
04 Aug - 11 Aug Air Canada
11 Aug - 18 Aug Air Canada
04 Aug - 18 Aug Air Canada
02 Aug - 09 Aug Air Canada
01 Aug - 08 Aug United
05 Aug - 12 Aug Air Canada
10 Aug - 17 Aug Lufthansa

Also check the deals for one-way flights from Austin to Keflavik in August.

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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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