AirHint found the following cheapest return flights from San Antonio (SAT) to London (LHR) in August 2025 (see full year).

Return flights

06 Aug - 28 Aug	KLM
11 Aug - 26 Aug	Air France
20 Aug - 27 Aug	Delta
14 Aug - 29 Aug	Delta
21 Aug - 28 Aug	British Airways
25 Aug - 01 Sep	British Airways
15 Aug - 22 Aug	British Airways
17 Aug - 24 Aug	British Airways
22 Aug - 28 Aug	British Airways
31 Aug - 07 Sep	Virgin Atlantic
03 Aug - 12 Aug	Delta
01 Aug - 12 Aug	Delta
30 Aug - 14 Sep	Delta
27 Aug - 03 Sep	British Airways
31 Aug - 05 Sep	Delta

Also check the deals for one-way flights from San Antonio to London in August.

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

Cheapest return flights from San Antonio to London in August from 449€

Return flights