AirHint found the following cheapest return flights from Raleigh-durham (RDU) to London (LHR) in May 2026 (see full year).

Return flights

04 May - 13 May	Spirit Airlines
04 May - 14 May	Spirit Airlines
05 May - 12 May	Frontier Airlines
10 May - 16 May	Icelandair
06 May - 11 May	Icelandair
05 May - 11 May	Scandinavian Airlines
05 May - 14 May	Scandinavian Airlines
01 May - 03 May	Icelandair
09 May - 16 May	Spirit Airlines
09 May - 18 May	Spirit Airlines
26 May - 10 Jun	jetBlue
25 May - 01 Jun	Icelandair
28 May - 04 Jun	Icelandair
28 May - 15 Jun	Icelandair
31 May - 14 Jun	Icelandair
26 May - 10 Jun	American Airlines	direct
25 May - 01 Jun	British Airways	direct
28 May - 15 Jun	American Airlines	direct
31 May - 14 Jun	Finnair	direct

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

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 May from $636

Return flights