£396 Cheap United flights from London to Chicago (LHR→ORD)

View £396 flight on Tue, 1 Sept 2026Opens in a new window

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United flights from London to Chicago (LHR→ORD)

Prices were available within the past 7 days and start at £396 for one-way flights and £611 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 7 Sept - Mon, 28 Sept
LHR
London
ORD
Chicago
£611 Return, found 1 hour ago
£611
Return
found 1 hour ago
Select United flight, departing Mon, 7 Sept from London to Chicago, returning Mon, 28 Sept, priced at £611 found 1 hour ago

Alternative airports near Chicago

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Midway Intl. MDW. Closest option available. Average driving time to city centre is 16 minutes. Flights from £704
MDW
Midway Intl.
Closest
Average driving time to city centre16 min
Flights from £704

Find the cheapest month to fly from London (LHR) to Chicago (ORD)

February is typically the cheapest month to fly

From £351 - £562 per traveller.

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 £611 from LHR to ORD. Affordable one-way options from £396 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," 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 52 mins

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