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

Return flights

01 Dec - 09 Dec	Frontier Airlines
05 Dec - 12 Dec	Frontier Airlines
08 Dec - 16 Dec	Spirit Airlines
09 Dec - 23 Dec	Spirit Airlines
09 Dec - 20 Dec	Spirit Airlines
16 Dec - 23 Dec	Alaska Airlines
25 Dec - 13 Jan	Frontier Airlines
26 Dec - 09 Jan	Frontier Airlines
28 Dec - 04 Jan	Frontier Airlines
27 Dec - 02 Jan	Frontier Airlines
16 Dec - 02 Jan	Spirit Airlines
26 Dec - 03 Jan	Japan Airlines
20 Dec - 04 Jan	WestJet

Also check the deals for one-way flights from San Antonio 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 San Antonio to Tokyo in December from $641

Return flights