Title: £1,002 Cheap United flights from London to St. Louis (LHR→STL) - Expedia.co.uk ![](https://images.trvl-media.com/place/178309/1d118261-eb93-42dd-aeef-5f82e1f037e8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178309/1d118261-eb93-42dd-aeef-5f82e1f037e8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £1,002 Cheap United flights from London to St. Louis (LHR→STL) [View £1,002 flight on Wed, 24 Jun 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LHR,to:STL,departure:24/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1001.92&airProductToken=AQpsCjQI1YIBEgM5NTgY64kBIK4cKOLFkAMw9MmQAzhVQABYAWoIRUNPQkFTSUNyCFVLWE1TT0JRCjQI1YIBEgQxODcyGK4cIPJcKNPKkAMwpsuQAzhVQAFYAWoIRUNPQkFTSUNyCFVLWE1TT0JREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 25% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## United flights from London to St. Louis (LHR→STL) Prices were available within the past 7 days and start at £1,002 for one-way flights and £659 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, 26 Nov - Sun, 30 Nov LHR London STL St. Louis £659 Return found 6 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:STL,departure:26/11/2025TANYT&leg2=from:STL,to:LHR,departure:30/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:658.92&airProductToken=AQptCjUI1YIBEgQ5NTQ2GOuJASClBCjmiv4CMMWL_gI4S0AAWAFqCEVDT0JBU0lDcghLTFBaNUZCUQo0CNWCARIEOTA2NhilBCDyXCipjP4CMIuR_gI4S0ABWAFqCEVDT0JBU0lDcghLTFBaNUZCUQpsCjQI1YIBEgQ0NDk4GPJcIK4cKLe9_gIwkL7-AjhLQABYAWoIRUNPQkFTSUNyCEtMUFo1RkJRCjQI1YIBEgM5MjkYrhwg64kBKPm-_gIw48L-AjhLQAFYAWoIRUNPQkFTSUNyCEtMUFo1RkJREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Wed, 14 Jan - Wed, 28 Jan LHR London STL St. Louis £660 Return found 20 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:28/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:659.52&airProductToken=AQpFCiEI1YIBEgQ5NTQ2GOuJASClBCiGsoIDMOWyggM4S0AAWAEKIAjVggESBDkwNjYYpQQg8lwoybOCAzCruIIDOEtAAVgBCkUKIAjMkAESBDg3OTMY8lwgrhwoiNiDAzDv2IMDOEtAAFgBCiEIzJABEgQ5MzU1GK4cIOuJASiZ2YMDMIPdgwM4S0ABWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) Flight from London to St. Louis route 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, Turkish Airlines, United, Virgin Atlantic | | Popular airline | British Airways | | Distance | 6703 km | - Trending United Flights - Trending Routes - Related Airlines - Nearby Airports - Flights from Other Cities ### Most Popular United Routes from London - [United LHR to ORD](https://expedia.co.uk/lp/flight-routes/united-from-heathrow-to-ohare-intl/ua/lhr/ord) - [London to Toronto (LHR - YYZ)](https://expedia.co.uk/lp/flights/lhr/yyz/london-to-toronto) - [London to Tokyo (LHR - HND)](https://expedia.co.uk/lp/flights/lhr/hnd/london-to-tokyo) - [London to Los Angeles (LHR - LAX)](https://expedia.co.uk/lp/flights/lhr/lax/london-to-los-angeles) - [London to Las Vegas (LHR - LAS)](https://expedia.co.uk/lp/flights/lhr/las/london-to-las-vegas) - [London to Newark Liberty Intl. 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