Cheapest return flights from Greenville to London in December from $1139

AirHint found the following cheapest return flights from Greenville (GSP) to London (LHR) in December 2025 (see full year).

Return flights

11 Dec - 15 Dec Allegiant Air
21 Dec - 06 Jan Air Canada
18 Dec - 26 Dec Virgin Atlantic
16 Dec - 07 Jan Allegiant Air
16 Dec - 06 Jan Allegiant Air
18 Dec - 28 Dec Air Canada
17 Dec - 07 Jan United
27 Dec - 05 Jan KLM

Also check the deals for one-way flights from Greenville to London in December.

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