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

Return flights

22 Apr - 29 Apr	Icelandair
14 Apr - 24 Apr	Spirit Airlines
06 Apr - 14 Apr	Icelandair
27 Apr - 05 May	Icelandair
28 Apr - 13 May	Frontier Airlines
17 Apr - 19 Apr	Icelandair
01 Apr - 08 Apr	Icelandair
27 Apr - 15 May	Icelandair
13 Apr - 18 Apr	Icelandair
15 Apr - 15 May	Icelandair
02 Apr - 14 Apr	jetBlue
14 Apr - 22 Apr	jetBlue
25 Apr - 02 May	Icelandair
30 Apr - 09 May	Frontier Airlines
03 Apr - 11 Apr	Frontier Airlines
10 Apr - 15 Apr	Frontier Airlines
23 Apr - 02 May	Frontier Airlines
27 Apr - 15 May	Finnair	direct
27 Apr - 05 May	Finnair	direct
28 Apr - 13 May	Finnair	direct

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

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 April from $657

Return flights