Title: £2,224 Cheap United flights from London to Chicago (LHR→ORD) - Expedia.co.uk ![City of Chicago. Image of Chicago downtown and Chicago River with bridges at sunny summer day](https://images.trvl-media.com/place/178248/e6aa83ce-7ad8-43a5-9d1d-b055eefa7e78.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178248/e6aa83ce-7ad8-43a5-9d1d-b055eefa7e78.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £2,224 Cheap United flights from London to Chicago (LHR→ORD) [View £2,224 flight on Sun, 28 Sept 2025](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LHR,to:ORD,departure:28/09/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2223.82&airProductToken=AQo2CjQI1YIBEgM5NTgY64kBIK4cKMLz-AIw3vf4AjhCQABYAWoIRUNPQkFTSUNyCEJNUE1CT0JREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwAQ) - [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 Chicago (LHR→ORD) Prices were available within the past 7 days and start at £2,224 for one-way flights and £409 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) Fri, 28 Nov - Sat, 6 Dec LHR London ORD Chicago £409 Return found 22 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:ORD,departure:28/11/2025TANYT&leg2=from:ORD,to:LHR,departure:06/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:408.92&airProductToken=AQpsCjUI1YIBEgQ5MjMyGOuJASClBCieov4CMP2i_gI4S0AAWAFqCEVDT0JBU0lDcghLTFBPNUZCUQozCNWCARIDOTA2GKUEIK4cKOaj_gIwoKj-AjhLQAFYAWoIRUNPQkFTSUNyCEtMUE81RkJRCmsKMwjVggESAzU4NxiuHCCIGCj3gf8CMOaC_wI4S0AAWAFqCEVDT0JBU0lDcghLTFBPNUZCUQo0CNWCARIDOTE4GIgYIOuJASiYg_8CMNCG_wI4S0ABWAFqCEVDT0JBU0lDcghLTFBPNUZCURIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ## Frequently asked questions ### How much is a United Airlines flight from Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD)? > Apply the "Price (lowest to highest)" filter on Expedia to find cheap United Airlines return flights from £409 from LHR to ORD. Affordable one-way options from £2,224 are also on offer.\**\*These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.* ### What is the cheapest month to fly from LHR to ORD with United Airlines? > Search for one-way or round-trip flights to Chicago in January or February. You could find lower fares with United Airlines during these off-peak times. ### Does United Airlines fly nonstop from Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD)? > Take off on one of United Airlines's 14 weekly direct flights from Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD). To see what's available, enter your dates, origin and destination and hit search. Next, apply the "Nonstop" and "Airline" filters. ### How long does it take to fly from LHR to ORD with United Airlines? > It takes approximately 9h 25m to travel nonstop from Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD) with United Airlines. ### Which day of the week has the most United Airlines flights from Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD)? > United Airlines operates the most flights from Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD) on Wednesday. With up to 2 daily departures, you'll get the most flexibility on this day. ### What airports does United Airlines fly into in Chicago? > United Airlines flights from Heathrow Airport (LHR) to Chicago touch down at O'Hare Intl. Airport (ORD). This is the main gateway to this destination. ### What type of plane does United Airlines fly from Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD)? > United Airlines usually operates Boeing 767-300 planes for flights from Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD). Bear in mind that aircraft type can change depending on operational requirements, so the plane you'll be on might be different on your day of travel. ### Can I change or cancel my United Airlines flight from Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD)? > It's generally possible to cancel or modify your flight, although additional fees may apply if you booked more than 24 hours ago. Prefer to keep your options open? Use Expedia's "No cancel fee" and "Changes included" filters to find flights that won't charge you extra if you have to adjust your plans. To modify your booking, head to "[Trips](https://www.expedia.co.uk/trips)," select your flight and click on "Manage Booking" for more information. ## Travel information | Origin airport | Heathrow | | --- | --- | | Destination airport | O'Hare Intl. | | Airlines serving | Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic | | Popular airline | Aer Lingus | | Distance | 6307 km | | Average flight time | 2 hours 44 mins | ## Explore a world of travel with Expedia - Trending United Flights - Trending Routes - Related Airlines - Nearby Airports - Flights from Other Cities - Expedia's Latest Trends ### 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) ### Most Popular United Routes from Chicago - 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