Cheapest return flights from Austin to London in December from $645

Best time to book flights for Austin (AUS) to London (LHR) flights at AirHint

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

Return flights

01 Dec - 17 Dec American Airlines
04 Dec - 11 Dec British Airways direct
14 Dec - 21 Dec British Airways direct
29 Dec - 04 Jan Lufthansa
24 Dec - 07 Jan Finnair
27 Dec - 10 Jan Delta
24 Dec - 07 Jan British Airways direct
22 Dec - 28 Dec Air Canada
27 Dec - 10 Jan British Airways direct
24 Dec - 29 Dec Finnair
24 Dec - 29 Dec British Airways direct
24 Dec - 31 Dec British Airways direct
22 Dec - 28 Dec Iberia direct
29 Dec - 04 Jan Iberia direct
18 Dec - 29 Dec Air Canada
01 Dec - 17 Dec British Airways direct

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

Skyscanner

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.

Book a cheap hotel in London

Cheap car rent in London