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

Return flights

23 Jan - 27 Jan	Frontier Airlines
23 Jan - 26 Jan	Frontier Airlines
27 Jan - 03 Feb	Spirit Airlines
27 Jan - 01 Feb	Spirit Airlines
26 Jan - 01 Feb	Frontier Airlines
22 Jan - 29 Jan	Frontier Airlines
22 Jan - 28 Jan	Air Canada
21 Jan - 28 Jan	Spirit Airlines
26 Jan - 11 Feb	Frontier Airlines
30 Jan - 01 Feb	Spirit Airlines
19 Jan - 26 Jan	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 510€

Return flights