Book United London to St. Louis flight deals from $1,038

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A view of the St. Louis Arch

Plan ahead for flights from London to St. Louis

from
to
Type
Dates
Price*
London (LHR)
to St. Louis (STL)
Roundtrip
Depart Wed 26 Dec 2018
Return Tue 1 Jan 2019
from$ 1,038*Viewed: 1 day ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.