Cheapest return MIA–MAD flights, May

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

Return flights

31 May - 04 Jun Frontier Airlines
31 May - 07 Jun Frontier Airlines
28 May - 02 Jun Frontier Airlines
13 May - 20 May SWISS
18 May - 23 May Lufthansa
28 May - 01 Jun Frontier Airlines
28 May - 06 Jun Frontier Airlines
13 May - 17 Jun Lufthansa
18 May - 27 May SWISS
12 May - 19 May Lufthansa
15 May - 25 May SWISS
16 May - 20 May Air Europa direct
14 May - 20 May Frontier Airlines
14 May - 24 May Frontier Airlines
18 May - 28 May Lufthansa
13 May - 18 May Lufthansa
28 May - 15 Jun Frontier Airlines
26 May - 02 Jun Hahn Air Technologies
26 May - 17 Jun Hahn Air Technologies
19 May - 03 Jun SWISS

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

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