AirHint found the following cheapest return flights from Raleigh-durham (RDU) to London (LHR) in August 2025 (see full year).

Return flights

17 Aug - 21 Aug	jetBlue
13 Aug - 23 Aug	jetBlue
06 Aug - 16 Aug	jetBlue
28 Aug - 04 Sep	Icelandair
23 Aug - 30 Aug	jetBlue
05 Aug - 12 Aug	Air France
27 Aug - 02 Sep	Icelandair
16 Aug - 23 Aug	Frontier Airlines
18 Aug - 25 Aug	Icelandair
11 Aug - 20 Aug	Frontier Airlines
04 Aug - 15 Aug	Frontier Airlines
28 Aug - 20 Sep	jetBlue
07 Aug - 12 Aug	jetBlue
29 Aug - 03 Sep	Icelandair
28 Aug - 01 Sep	Icelandair
29 Aug - 01 Sep	Icelandair
27 Aug - 07 Sep	Frontier Airlines
26 Aug - 02 Sep	Icelandair
30 Aug - 06 Sep	Icelandair
27 Aug - 02 Sep	Finnair	direct

Also check the deals for one-way flights from Raleigh-durham 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 Raleigh-durham to London in August from 548€

Return flights