Cheapest return flights from Raleigh-durham to London in September from $678

Best time to book flights for Raleigh-durham (RDU) to London (LHR) flights at AirHint

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

Return flights

20 Sep - 27 Sep jetBlue
08 Sep - 30 Sep jetBlue
02 Sep - 20 Oct jetBlue
18 Sep - 25 Sep British Airways direct
03 Sep - 10 Sep Icelandair
08 Sep - 15 Sep Icelandair
13 Sep - 20 Sep Icelandair
23 Sep - 30 Sep Icelandair
08 Sep - 30 Sep American Airlines direct
03 Sep - 10 Sep British Airways direct
23 Sep - 30 Sep British Airways direct
27 Sep - 04 Oct United

Also check the deals for one-way flights from Raleigh-durham to London in September.

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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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