Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Heathrow Airport (LHR)
Austrian AirlinesAustrian Airlines
Aer LingusAer Lingus
IberiaIberia
Brussels AirlinesBrussels Airlines
FinnairFinnair
Alaska AirlinesAlaska Airlines
Air CanadaAir Canada
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Today's featured flight deals from Chicago O'Hare Intl. Airport (ORD) to Heathrow Airport (LHR)
- Chicago (ORD) to London (LHR).American Airlines, nonstop.Departing on Mon, Sep 29 at 10:35pm from Chicago, arriving on Tue, Sep 30 at 12:15pm in London.Returning on Mon, Oct 6 at 8:00pm from London, arriving on Tue, Oct 7 at 2:15pm in Chicago.Select American Airlines flight departing on Mon, Sep 29 at 10:35pm from Chicago, returning on Mon, Oct 6 at 8:00pm from London priced at $50845% less than typical$508
- Chicago (ORD) to London (LHR).American Airlines, nonstop.Departing on Tue, Sep 30 at 10:35pm from Chicago, arriving on Wed, Oct 1 at 12:15pm in London.Returning on Mon, Oct 6 at 8:40pm from London, arriving on Tue, Oct 7 at 2:15pm in Chicago.Select American Airlines flight departing on Tue, Sep 30 at 10:35pm from Chicago, returning on Mon, Oct 6 at 8:40pm from London priced at $49445% less than typical$494
- Chicago (ORD) to London (LHR).American Airlines, nonstop.Departing on Mon, Sep 29 at 10:35pm from Chicago, arriving on Tue, Sep 30 at 12:15pm in London.Returning on Wed, Oct 8 at 10:40am from London, arriving at 8:00pm in Chicago.Select American Airlines flight departing on Mon, Sep 29 at 10:35pm from Chicago, returning on Wed, Oct 8 at 10:40am from London priced at $48645% less than typical$486
- Chicago (ORD) to London (LHR).United, nonstop.Departing on Wed, Sep 24 at 9:50pm from Chicago, arriving on Thu, Sep 25 at 11:45am in London.Returning on Sun, Sep 28 at 4:40pm from London, arriving at 11:15pm in Chicago.Select United flight departing on Wed, Sep 24 at 9:50pm from Chicago, returning on Sun, Sep 28 at 4:40pm from London priced at $70835% less than typical$708
- Chicago (ORD) to London (LHR).United, nonstop.Departing on Mon, Sep 22 at 9:50pm from Chicago, arriving on Tue, Sep 23 at 11:45am in London.Returning on Tue, Sep 30 at 9:30am from London, arriving at 2:55pm in Chicago.Select United flight departing on Mon, Sep 22 at 9:50pm from Chicago, returning on Tue, Sep 30 at 9:30am from London priced at $64830% less than typical$648
- Chicago (ORD) to London (LHR).United, nonstop.Departing on Wed, Sep 24 at 9:50pm from Chicago, arriving on Thu, Sep 25 at 11:45am in London.Returning on Wed, Oct 8 at 2:05pm from London, arriving at 8:17pm in Chicago.Select United flight departing on Wed, Sep 24 at 9:50pm from Chicago, returning on Wed, Oct 8 at 2:05pm from London priced at $64830% less than typical$648
- Chicago (ORD) to London (LHR).United, nonstop.Departing on Wed, Sep 24 at 9:50pm from Chicago, arriving on Thu, Sep 25 at 11:45am in London.Returning on Tue, Sep 30 at 6:50am from London, arriving at 12:05pm in Chicago.Select United flight departing on Wed, Sep 24 at 9:50pm from Chicago, returning on Tue, Sep 30 at 6:50am from London priced at $63730% less than typical$637
- Chicago (ORD) to London (LHR).United, nonstop.Departing on Wed, Sep 24 at 9:50pm from Chicago, arriving on Thu, Sep 25 at 11:45am in London.Returning on Wed, Oct 1 at 2:10pm from London, arriving at 5:20pm in Chicago.Select United flight departing on Wed, Sep 24 at 9:50pm from Chicago, returning on Wed, Oct 1 at 2:10pm from London priced at $64830% less than typical$648
- Chicago (ORD) to London (LHR).American Airlines, nonstop.Departing on Fri, Oct 3 at 10:35pm from Chicago, arriving on Sat, Oct 4 at 12:15pm in London.Returning on Wed, Oct 8 at 10:40am from London, arriving at 8:00pm in Chicago.Select American Airlines flight departing on Fri, Oct 3 at 10:35pm from Chicago, returning on Wed, Oct 8 at 10:40am from London priced at $53635% less than typical$536
Cheap Flights from Chicago to London (ORD-LHR)
Prices were available within the past 7 days and start at $239 for one-way flights and $387 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Find the cheapest month to fly from Chicago (ORD) to London (LHR)
November is typically the cheapest month to fly
Frequently asked questions
Travel information
Travel information
Origin airport | O'Hare Intl. |
Destination airport | Heathrow |
Airlines serving | Aer Lingus, Air Canada, Alaska Airlines, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic |
Roundtrip price | $386 |
Distance | 3942 mi |
Average flight time | 13 hours 56 mins |
Book with confidence
Book with confidence
Chicago to London Flights
The cheapest times to fly from Chicago to London
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to London are during the month of October. You can find some of the cheapest flights from Chicago to London with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Chicago to London
Sunday is one of the best days to book for cheap flights from Chicago to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Chicago to London
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $239 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.
You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.
*Terms apply.
Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.
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