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

Return flights

11 Aug - 11 Sep	Icelandair
20 Aug - 27 Aug	Lufthansa
12 Aug - 19 Aug	Icelandair
18 Aug - 21 Aug	Icelandair
22 Aug - 29 Aug	Icelandair
13 Aug - 19 Aug	Air Canada
26 Aug - 02 Sep	Icelandair
22 Aug - 02 Sep	Icelandair
20 Aug - 27 Aug	Finnair	direct
05 Aug - 12 Aug	American Airlines
06 Aug - 19 Aug	Air Canada
26 Aug - 02 Sep	British Airways	direct
11 Aug - 11 Sep	British Airways	direct
22 Aug - 01 Sep	Icelandair
27 Aug - 05 Sep	Delta
03 Aug - 12 Aug	Finnair	direct
06 Aug - 19 Aug	Finnair	direct
23 Aug - 01 Sep	Icelandair
22 Aug - 02 Sep	British Airways	direct
22 Aug - 01 Sep	British Airways	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 488€

Return flights