Title: £380 Cheap United flights from London to St. Louis (LHR→STL) - Expedia.co.uk

 

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# £380 Cheap United flights from London to St. Louis (LHR→STL)

[View £380 flight on Wed, 14 Jan 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LHR,to:STL,departure:14/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:379.62&airProductToken=AQpsCjQI1YIBEgM5NTgY64kBIK4cKMyyggMw_LaCAzhLQABYAWoIRUNPQkFTSUNyCEtMWE1WT0JRCjQI1YIBEgQzNTAyGK4cIPJcKPS3ggMwzriCAzhLQAFYAWoIRUNPQkFTSUNyCEtMWE1WT0JREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ)

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## United flights from London to St. Louis (LHR→STL)

Prices were available within the past 7 days and start at £380 for one-way flights and £844 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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One way

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![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif)

Wed, 14 Jan - Sun, 25 Jan

LHR

London

STL

St. Louis

£844

Return

found 3 hours ago

[](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:STL,departure:14/01/2026TANYT&leg2=from:STL,to:LHR,departure:25/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:843.02&airProductToken=AQpuCjUI1YIBEgM5MDUY64kBIMSNASims4IDMJ-3ggM4S0AAWAFqCEVDT0JBU0lDcghLTFhNVTVCUQo1CNWCARIEMzcxORjEjQEg8lwowLiCAzD2uYIDOEtAAVgBaghFQ09CQVNJQ3IIS0xYTVU1QlEKbgo1CNWCARIEMzUxNhjyXCDEjQEoz7WDAzDztoMDOEtAAFgBaghFQ09CQVNJQ3IIS0xYTVU1QlEKNQjVggESAzkzNBjEjQEg64kBKKW8gwMw07-DAzhLQAFYAWoIRUNPQkFTSUNyCEtMWE1VNUJREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ)

## Travel information

| Origin airport | Heathrow |
| --- | --- |
| Destination airport | Lambert-St. Louis Intl. |
| Airlines serving | Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic |
| Popular airline | KLM |
| Distance | 6703 km |

\*Available to Expedia members.