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

Return flights

26 Mar - 09 Apr	jetBlue
09 Mar - 13 Mar	Icelandair
04 Mar - 11 Mar	Icelandair
09 Mar - 16 Mar	Icelandair
25 Mar - 18 Apr	Icelandair
11 Mar - 04 Apr	Icelandair
14 Mar - 21 Mar	Icelandair
29 Mar - 09 Apr	Air Canada
24 Mar - 14 Apr	Air Canada
13 Mar - 18 Mar	Icelandair
27 Mar - 18 Apr	Icelandair
24 Mar - 31 Mar	British Airways	direct
24 Mar - 14 Apr	Finnair	direct
29 Mar - 09 Apr	British Airways	direct
03 Mar - 28 Mar	TAP
13 Mar - 19 Mar	Icelandair
13 Mar - 04 Apr	Icelandair
24 Mar - 18 Apr	Air Canada
03 Mar - 28 Mar	British Airways	direct
13 Mar - 19 Mar	British Airways	direct

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

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 March from 577€

Return flights