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

Return flights

17 Mar - 15 Apr	Spirit Airlines
15 Mar - 24 Mar	Air Canada
12 Mar - 23 Mar	United
12 Mar - 19 Mar	United
24 Mar - 31 Mar	Delta
25 Mar - 31 Mar	Delta
25 Mar - 08 Apr	Delta
25 Mar - 15 Apr	Delta
25 Mar - 01 Apr	Delta
26 Mar - 01 Apr	British Airways
26 Mar - 02 Apr	British Airways
31 Mar - 26 Apr	Lufthansa
12 Mar - 24 Mar	United
19 Mar - 03 Apr	United
31 Mar - 05 Apr	Air France
30 Mar - 05 Apr	Air France
15 Mar - 22 Mar	Spirit Airlines
14 Mar - 23 Mar	British Airways
18 Mar - 28 Mar	Spirit Airlines
12 Mar - 21 Mar	Spirit Airlines

Also check the deals for one-way flights from Indianapolis 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 Indianapolis to London in March from $602

Return flights