AirHint found the following cheapest return flights from Miami (MIA) to London (LHR) in March 2026 (see full year).

Return flights

23 Mar - 18 Apr	TAP
30 Mar - 13 Apr	TAP
23 Mar - 31 Mar	TAP
19 Mar - 31 Mar	TAP
05 Mar - 12 Mar	TAP
11 Mar - 17 Mar	TAP
09 Mar - 18 Mar	TAP
03 Mar - 08 Mar	TAP
16 Mar - 22 Mar	Scandinavian Airlines
25 Mar - 18 Apr	TAP
11 Mar - 21 Mar	Scandinavian Airlines
09 Mar - 14 Mar	Scandinavian Airlines
12 Mar - 19 Mar	FrenchBee
22 Mar - 11 Apr	TAP
28 Mar - 11 Apr	TAP
27 Mar - 11 Apr	TAP
20 Mar - 11 Apr	TAP
30 Mar - 13 Apr	Air France	direct
22 Mar - 11 Apr	Iberia	direct
23 Mar - 18 Apr	Air France	direct

Also check the deals for one-way flights from Miami 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 Miami to London in March from $403

Return flights