Cheapest return flights from Indianapolis to London in September from $632

AirHint found the following cheapest return flights from Indianapolis (IND) to London (LHR) in September 2025 (see full year).

Return flights

25 Sep - 28 Sep Virgin Atlantic
20 Sep - 11 Oct Spirit Airlines
24 Sep - 18 Oct British Airways
20 Sep - 06 Oct Spirit Airlines
22 Sep - 29 Sep SWISS
22 Sep - 18 Oct Spirit Airlines
19 Sep - 22 Sep American Airlines
18 Sep - 25 Sep Air France
18 Sep - 20 Sep Virgin Atlantic

Also check the deals for one-way flights from Indianapolis to London in September.

Skyscanner

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.

Book a cheap hotel in London

Cheap car rent in London

Feel free to contact us with any feedback or request another flight research.