AirHint found the following cheapest return flights from Austin (AUS) to London (LGW) in January 2026 (see full year).

Return flights

24 Jan - 30 Jan	Frontier Airlines
31 Jan - 06 Feb	Spirit Airlines
24 Jan - 29 Jan	Frontier Airlines
30 Jan - 02 Feb	Spirit Airlines
28 Jan - 18 Feb	Spirit Airlines
23 Jan - 30 Jan	Spirit Airlines
28 Jan - 04 Feb	Spirit Airlines
23 Jan - 26 Jan	Spirit Airlines
29 Jan - 03 Feb	Frontier Airlines
22 Jan - 30 Jan	Frontier Airlines
22 Jan - 26 Jan	Spirit Airlines
30 Jan - 07 Feb	Spirit Airlines

Also check the deals for one-way flights from Austin to London in January.

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 London in January from $543

Return flights