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

Return flights

03 Mar - 10 Mar	Spirit Airlines
04 Mar - 15 Mar	Spirit Airlines
03 Mar - 16 Mar	Spirit Airlines
04 Mar - 11 Mar	jetBlue
16 Mar - 23 Mar	Spirit Airlines
04 Mar - 10 Mar	jetBlue
01 Mar - 07 Mar	jetBlue
07 Mar - 15 Mar	jetBlue
05 Mar - 15 Mar	jetBlue
04 Mar - 16 Mar	jetBlue
27 Mar - 10 Apr	Spirit Airlines
23 Mar - 06 Apr	Icelandair
30 Mar - 07 Apr	jetBlue
26 Mar - 04 Apr	Frontier Airlines

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 $574

Return flights