United Airlines London to Chicago Flights

Return flight: Chicago – London

Cheapflightsplus.com will find cheap United Airlines flights from London to Chicago. Compare airline ticket prices and book air tickets starting from $725 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare London — Chicago (IL) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in july: one-way - $725, two-way – $1243.
Direct flights
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
11:05 am — 2:10 pm
11:05 am — 2:10 pm UA959 United Airlines
London — Chicago
9h 5m
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from$725
2:10 pm — 5:20 pm
2:10 pm — 5:20 pm UA928 United Airlines
London — Chicago
9h 10m
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from$727
3:50 pm — 10:07 pm
3:50 pm — 6:45 pm UA8219 United Airlines
London — Toronto
2h 15m stop
9:00 pm — 10:07 pm UA5928 United Airlines
Toronto — Chicago
12h 17m
including layover
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from$1928
3:50 pm — 10:05 pm
3:50 pm — 6:45 pm UA8219 United Airlines
London — Toronto
2h 15m stop
9:00 pm — 10:05 pm UA3640 United Airlines
Toronto — Chicago
12h 15m
including layover
Find flight
from$1940
4:00 pm — 11:37 pm
4:00 pm — 7:20 pm UA941 United Airlines
London — Newark
2h 35m stop
9:55 pm — 11:37 pm UA1308 United Airlines
Newark — Chicago
13h 37m
including layover
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from$1947
4:00 pm — 10:05 pm
4:00 pm — 6:50 pm UA8219 United Airlines
London — Toronto
2h 10m stop
9:00 pm — 10:05 pm UA4808 United Airlines
Toronto — Chicago
12h 5m
including layover
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from$3213
4:40 pm — 11:15 pm
4:40 pm — 8:00 pm UA925 United Airlines
London — Washington D.C.
2h 15m stop
10:18 pm — 11:30 pm UA1738 United Airlines
Washington D.C. — Chicago
12h 35m
including layover
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from$1836
5:40 pm — 7:59 am
+1 day
5:40 pm — 8:30 pm UA8309 United Airlines
London — Toronto
10h 30m stop
7:00 am — 7:59 am UA490 United Airlines
Toronto — Chicago
20h 19m
including layover
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from$1926
6:00 pm — 7:38 am
+1 day
6:00 pm — 9:20 pm UA921 United Airlines
London — Newark
8h 40m stop
6:00 am — 7:38 am UA2164 United Airlines
Newark — Chicago
19h 38m
including layover
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from$1896
8:30 am — 11:25 am
8:30 am — 11:25 am UA958 United Airlines
London — Chicago
8h 55m
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from$725
*Departure and arrival times are local. Last updated on 07/04/2025

Flight Information

There are 3 flights by United Airlines from London to Chicago every week with departures from Gatwick, London City, Heathrow, Luton, Stansted, Stratford International Rail St, Ebbsfleet International Rail St, London Biggin Hill, London-Waterloo, British Rail Terminal. All flights arrive at Chicago FSS, Midway, O'Hare International, Chicago NAS, Merrill C Meigs (closed), Dupage County, Pal-Waukee.

Departures start from 11:05 am to 8:30 am. Nonstop flight is 8h 55m. The time difference between London and Chicago is 6h.

  • The fastest flight 8h 55m
  • Average flight time 9h 5m
  • The earliest flight 11:05 am
  • The latest flight 8:30 am
  • Distance 3948 ml

The cheapest months for traveling to Chicago are may (from 686 $), june (from 686 $), october (from 725 $).

The most expensive and popular months are august (from 1 017 $), july (from 725 $), october (from 725 $).

The cheapest flight by United Airlines that our users were able to find is $725. This airfare is economy class on one-way UA958 flight for July 14, 2025 leaving Heathrow in London at 8:30 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 36 airline carriers between London and Chicago. Please review schedules and prices from the most popular airlines to find the best airfare deals from London to Chicago.

Nonstop flights

There are 25 direct flights every day from London. Airlines and fares are below:

  • from $476
    Find
  • OS - Austrian Airlines
    from $1718
    Find
  • AY - Finnair
    from $471
    Find
  • IB - Iberia
    from $476
    Find
  • SN - Brussels Airlines
    from $3255
    Find
  • LH - Lufthansa
    from $1698
    Find
See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

  • from $381
    Find
  • W9 - Wizz Air UK
    from $385
    Find
  • VY - Vueling
    from $371
    Find
  • LO - LOT
    from $555
    Find
  • FI - Icelandair
    from $562
    Find
  • DN - Senegal Airlines
    from $506
    Find
  • JU - Air Serbia
    from $696
    Find
  • FR - Ryanair
    from $305
    Find
  • LX - SWISS International Air Lines
    from $417
    Find
  • A1 - G2 Switch Works
    from $658
    Find
  • A3 - Aegean Airlines
    from $606
    Find
See more connecting flights

How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
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  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

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