Our cheapest offers for flights from London to Chicago

Here you can compare cheap flights from London (LON) to Chicago (CHI) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Chicago. Prices and availability may change at any time.

	Outbound	Return	Airlines	Baggage	Price
London Chicago	Outbound 20/10/25 1 Stopover (KEF) FI0473, FI0853 32h 35min	Return 11/11/25 1 Stopover (KEF) FI0852, FI0470 10h 25min	Icelandair		£398
Best option London Chicago	Outbound 20/10/25 direct OS7851 09h 10min	Return 11/11/25 direct OS7854 08h 10min	Austrian Airlines	?	£486
London Chicago	Outbound 20/10/25 1 Stopover (MAD) IB1864, AY5659 23h 35min	Return 11/11/25 1 Stopover (MAD) AY5660, IB1863 20h 05min	Iberia, Finnair		£566
London Chicago Pay attention to transfer at connecting flight	Outbound 16/07/25 2 Stopovers (DUB, YYZ) FR0271, WS0035, AC0507 36h 49min	Return 09/08/25 2 Stopovers (KEF, OSL) FI0852, FI0318, RK1393 21h 15min	Ryanair, Westjet, Air Canada		£666
London Chicago	Outbound 20/10/25 1 Stopover (VIE) OS0456, OS0065 23h 50min	Return 11/11/25 1 Stopover (IAD) OS7916, OS7808 15h 38min	Austrian Airlines	?	£458
London Chicago	Outbound 20/10/25 1 Stopover (AMS) VS7048, VS7143 10h 45min	Return 11/11/25 1 Stopover (BOS) VS1860, VS4012 10h 55min	Virgin Atlantic Airways	?	£461
London Chicago	Outbound 20/10/25 1 Stopover (AMS) KL1004, KL0611 10h 45min	Return 11/11/25 1 Stopover (ATL) KL5854, KL6195 11h 45min	KLM	?	£463
London Chicago	Outbound 20/10/25 1 Stopover (MUC) UA8884, UA0952 12h 40min	Return 11/11/25 1 Stopover (YUL) UA8452, UA8296 17h 50min	United Airlines	?	£474
London Chicago	Outbound 09/10/25 2 Stopovers (JFK, LGA, CMH) AA6938, AA4462, AA3446 46h 10min	Return 14/10/25 2 Stopovers (DCA, JFK) AA0444, AA4551, AA6932 34h 37min	American Airlines	?	£483
London Chicago	Outbound 09/10/25 1 Stopover (FRA) LH0919, LH9152 21h 30min	Return 14/10/25 1 Stopover (YUL) AC3335, AC0866 10h 22min	Lufthansa	?	£487

Tips and tricks to help you find cheap flights from London to Chicago

Useful information about the flight from London to Chicago

Flights from London to Chicago

Up to 10 flights a day are operated on the popular flight route between London (LON) and Chicago (CHI) on the south-west coast of the USA. Several airlines offer scheduled services between the two cities and these include United, British Airways and Virgin Atlantic. A direct flight will cover the distance of 3963 miles in a flight time of 8 hours 48 minutes. However, the return journey is always slightly shorter, even taking up to an hour less for a direct connection. Journeys with a stopover will take longer: anything from 12 to 35 hours.

Cheap flight from London to Chicago

A low cost flight from the UK capital to Chicago is easy to find with a little planning. If purchased 5 months ahead of the date of travel, an air ticket can cost less than £500. Last minute deals are, however, also widely available and with a stopover, tickets can even cost less than a non-stop flight that has been purchased well in advance.

Chicago Airport

There are two major international airports in Chicago: O'Hare International Airport and Chicago Midway International Airport. O'Hare is the second busiest airport worldwide and most flights from London will land here. Other smaller airports also exist in and around the Chicago area. These are, however, mainly used for domestic air traffic. Getting from the destination airport Chicago O'Hare (ORD) to downtown Chicago is convenient using the subway trains or commuter trains which are connected to the terminals via a shuttle bus. Taxis are also widely available at the airport. Alternatively, passengers can stay at one of the many airport hotels.

Important flight information

Flight information: London - Chicago

Outbound and return from	397,03 £
Flight duration	min. 08:45 / max. 09:15
Return flight duration	min. 07:35/ max. 08:00
Distance	6358 km
Flights per week	58
Departure airport	Airport London (LCY, LGW, LHR, LTN, STN, SEN) (LON)
Arrival airport	Airport Chicago IL all Airports (ORD, MDW, RFD) (CHI)
Destination country	Flights to United States

Alternative routes to United States

Flight London - New York from 334 £
Flight London - Los Angeles from 424 £
Flight London - San Francisco from 447 £
Flight London - Miami from 357 £
Flight London - Orlando from 352 £
Flight London - Boston from 365 £
Flight London - Santa Ana, CA from 450 £
Flight London - Baltimore from 569 £
Flight London - Philadelphia from 508 £
Flight London - Tampa from 464 £