St. Louis to London Flights (STL-LON) from $473

Selected fares from St. Louis to London

The cheapest prices found with in the last 7 days for return flights were $629 and $473 for one-way flights to London for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 23 - Mon, Sep 30

STL

Lambert-St. Louis Intl.

LHR

Heathrow

$629 Roundtrip, found 5 days ago

$629

Roundtrip

found 5 days ago

Select British Airways flight, departing Mon, Sep 23 from Lambert-St. Louis Intl. to Heathrow, returning Mon, Sep 30, priced at $629 found 5 days ago

Wed, Jan 1 - Fri, Jan 24

STL

Lambert-St. Louis Intl.

LHR

Heathrow

$630 Roundtrip, found 20 hours ago

$630

Roundtrip

found 20 hours ago

Select Iberia flight, departing Wed, Jan 1 from Lambert-St. Louis Intl. to Heathrow, returning Fri, Jan 24, priced at $630 found 20 hours ago

Wed, Oct 2 - Wed, Oct 9

STL

Lambert-St. Louis Intl.

LHR

Heathrow

$633 Roundtrip, found 21 hours ago

$633

Roundtrip

found 21 hours ago

Select United flight, departing Wed, Oct 2 from Lambert-St. Louis Intl. to Heathrow, returning Wed, Oct 9, priced at $633 found 21 hours ago