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

Return flights

28 Mar - 29 Apr	Lufthansa
05 Mar - 09 Mar	Delta
28 Mar - 30 Apr	Air Canada
28 Mar - 27 Apr	Air France
24 Mar - 31 Mar	Delta
25 Mar - 22 Apr	KLM
27 Mar - 24 Apr	KLM
30 Mar - 06 Apr	Delta
31 Mar - 05 Apr	Air France
28 Mar - 07 Apr	KLM
22 Mar - 29 Mar	Delta
15 Mar - 23 Mar	Delta
06 Mar - 20 Mar	Delta
03 Mar - 10 Mar	United
03 Mar - 13 Mar	United
01 Mar - 08 Mar	Delta
07 Mar - 21 Mar	KLM
18 Mar - 22 Mar	Frontier Airlines

Also check the deals for one-way flights from Kansas City 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 Kansas City to London in March from 522€

Return flights