AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to London (LHR) in August 2025 (see full year).

Return flights

15 Aug - 29 Aug	Spirit Airlines
21 Aug - 29 Aug	Spirit Airlines
13 Aug - 27 Aug	Finnair
21 Aug - 27 Aug	Spirit Airlines
21 Aug - 28 Aug	Spirit Airlines
26 Aug - 02 Sep	British Airways
18 Aug - 25 Aug	Finnair
19 Aug - 29 Aug	American Airlines
06 Aug - 13 Aug	American Airlines
27 Aug - 10 Sep	American Airlines
06 Aug - 22 Aug	British Airways
06 Aug - 19 Aug	British Airways
20 Aug - 04 Sep	American Airlines
19 Aug - 04 Sep	Finnair
26 Aug - 04 Sep	KLM
22 Aug - 01 Sep	Spirit Airlines
19 Aug - 04 Sep	Iberia	direct
19 Aug - 02 Sep	Spirit Airlines
21 Aug - 09 Sep	American Airlines
21 Aug - 09 Sep	Iberia	direct

Also check the deals for one-way flights from Dallas-Fort Worth 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.

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Cheapest return flights from Dallas-Fort Worth to London in August from $600

Return flights