Cheapest one-way STL–LGW flights, June

AirHint found the following cheapest one-way flights from St. Louis (STL) to London (LGW) in June 2026 (see full year).

One-Way flights

08 Jun Frontier Airlines
01 Jun Frontier Airlines
05 Jun Frontier Airlines
19 Jun Frontier Airlines
23 Jun Frontier Airlines
28 Jun Frontier Airlines
24 Jun Frontier Airlines
22 Jun Air Canada
12 Jun Frontier Airlines
25 Jun Air Canada

Also check the deals for return flights from St. Louis to London in June.

Powered by

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.