Cheapest return flights from Louisville to London in September from $519

AirHint found the following cheapest return flights from Louisville (SDF) to London (LGW) in September 2025 (see full year).

Return flights

22 Sep - 24 Sep Spirit Airlines
22 Sep - 26 Sep Spirit Airlines
21 Sep - 26 Sep Spirit Airlines
30 Sep - 04 Oct Spirit Airlines

Also check the deals for one-way flights from Louisville 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.