AirHint found the following cheapest return flights from Austin (AUS) to Tokyo (NRT) in December 2025 (see full year).

Return flights

06 Dec - 17 Dec	Frontier Airlines
02 Dec - 23 Dec	Alaska Airlines
02 Dec - 16 Jan	Japan Airlines
28 Dec - 31 Dec	Air Canada
11 Dec - 19 Dec	Japan Airlines
01 Dec - 29 Dec	Frontier Airlines
16 Dec - 08 Jan	Hawaiian Airlines
16 Dec - 07 Jan	Frontier Airlines
21 Dec - 01 Jan	Frontier Airlines
29 Dec - 05 Jan	Hawaiian Airlines
24 Dec - 04 Jan	Frontier Airlines
20 Dec - 04 Jan	Frontier Airlines
19 Dec - 01 Jan	Frontier Airlines

Also check the deals for one-way flights from Austin to Tokyo in December.

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 return flights from Austin to Tokyo in December from $729

Return flights