Cheap flights from St. Louis to South London

View AU$605 flight on Tue, 9 Sep. 2025Opens in a new window

Popular airlines from St. Louis to South London

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

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Cheap Flights from St. Louis (STL) to South London (LON)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Atlantic
Mon, 1 Sep. - Tue, 16 Sep.
STL
St. Louis
LHR
London
AU$791 Return, found 1 day ago
AU$791
Return
found 1 day ago
Select Virgin Atlantic flight, departing Mon, 1 Sep. from St. Louis to London, returning Tue, 16 Sep., priced at AU$791 found 1 day ago
Virgin Atlantic
Tue, 19 Aug. - Tue, 2 Sep.
STL
St. Louis
LHR
London
AU$792 Return, found 2 days ago
AU$792
Return
found 2 days ago
Select Virgin Atlantic flight, departing Tue, 19 Aug. from St. Louis to London, returning Tue, 2 Sep., priced at AU$792 found 2 days ago
United
Wed, 20 Aug. - Tue, 2 Sep.
STL
St. Louis
LHR
London
AU$793 Return, found 2 days ago
AU$793
Return
found 2 days ago
Select United flight, departing Wed, 20 Aug. from St. Louis to London, returning Tue, 2 Sep., priced at AU$793 found 2 days ago
Air Canada
Tue, 19 Aug. - Tue, 2 Sep.
STL
St. Louis
LHR
London
AU$793 Return, found 2 days ago
AU$793
Return
found 2 days ago
Select Air Canada flight, departing Tue, 19 Aug. from St. Louis to London, returning Tue, 2 Sep., priced at AU$793 found 2 days ago
Delta
Tue, 19 Aug. - Tue, 2 Sep.
STL
St. Louis
LHR
London
AU$802 Return, found 2 days ago
AU$802
Return
found 2 days ago
Select Delta flight, departing Tue, 19 Aug. from St. Louis to London, returning Tue, 2 Sep., priced at AU$802 found 2 days ago
KLM
Mon, 1 Sep. - Tue, 16 Sep.
STL
St. Louis
LHR
London
AU$881 Return, found 1 day ago
AU$881
Return
found 1 day ago
Select KLM flight, departing Mon, 1 Sep. from St. Louis to London, returning Tue, 16 Sep., priced at AU$881 found 1 day ago

Find the cheapest month to fly from St. Louis (STL) to London (LHR)

October is typically the cheapest month to fly

From AU$817 - AU$2,311 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.