Cheapest return CLT–MAD flights, May

AirHint found the following cheapest return flights from Charlotte (CLT) to Madrid (MAD) in May 2026 (see full year).

Return flights

27 May - 14 Jun Frontier Airlines
19 May - 27 May Lufthansa
10 May - 19 May Iberia direct
10 May - 19 May Finnair
10 May - 17 May Finnair direct
07 May - 22 May Air France
16 May - 19 May Frontier Airlines
31 May - 30 Jun Frontier Airlines
21 May - 02 Jun Delta
14 May - 17 May Lufthansa
25 May - 02 Jun Frontier Airlines
14 May - 17 May Finnair direct
21 May - 31 May Delta
21 May - 01 Jun Delta
20 May - 24 May Finnair direct
23 May - 01 Jun WestJet
22 May - 02 Jun Air France
22 May - 01 Jun Air France
27 May - 14 Jun Finnair direct
28 May - 07 Jun Lufthansa

Also check the deals for one-way flights from Charlotte to Madrid in May.

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