Cheap flights from Heathrow to Chicago

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The best prices from Heathrow to Chicago are usually found in September or October, booked 60 days in advance, depart on a Friday or Tuesday and return on a Sunday

Return
Economy
Tue 8/12
Tue 15/12
From
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To
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Leaving on
Tue 8/12
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From
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To
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To
#smartAirportField( "destination${leg}", $options['destination'], $options['destinationCode'], "#string('FROM_TO_INPUT_PLACEHOLDER_FFD')", "destination${leg}", "destinationcode${leg}" ) #nearbyAirportField("nearbyDestinationCheck${leg}", $nearbyD, false, "$!options['destination']")
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To
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To
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Depart
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From
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To
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Leaving on
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How to find the cheapest flight from
Heathrow (LHR) to Chicago (CHI)

LHR - CHI
Price
£309 - £504
CHI
Temperature
1 - 29 °C
CHI
Rainfall
17 - 109 mm

Popular in

July

High demand for flights, 25% potential price rise

Cheapest in

September

Best time to find cheap flights, 18% potential price drop

Round-trip from

£309

From Heathrow to Chicago

One-way from

£190

One-way flight from Heathrow to Chicago

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly return from Heathrow to Chicago?

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 9% when planning your travel around this day of the week.

How far in advance should I book a flight from Heathrow to Chicago?

Users have found that booking a flight from Heathrow to Chicago at least 61 days early can save you up to 32% on average compared to booking a flight this week. If booking 61 days before your flight isn’t an option for you, users have found flights from Heathrow to Chicago for as little as £400 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £483 for flights departing within the next 3 days.

What is the cheapest month to fly from Heathrow to Chicago?

October can be a great time to fly to Chicago from Heathrow with a flight ticket averaging about £375. Cheapflights users have found deals in the month of October for as cheap as £262. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from Heathrow to Chicago (LHR - CHI)?

A simple way to save on the total cost of your ticket is to fly from Heathrow to Chicago in the evening. If you’re flexible enough to do this you can expect to save up to 4% on your trip compared to booking a flight at midday.

Cheap flights from Heathrow to Chicago in December, January 2021

The best prices found for LHR to CHI flights in December, January
11 Dec - 10 Jan
£312pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
21 Dec - 13 Jan
£321pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
25 Dec - 10 Jan
£340pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow

Heathrow to Chicago 2021 flight deals

Cheap flights to Chicago from Heathrow found for this year
11 Dec - 10 Jan
£312pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
21 Dec - 13 Jan
£321pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
25 Dec - 10 Jan
£340pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow

Direct flights to Chicago from Heathrow

Save time with Heathrow to Chicago direct flight deals
25 Jan - 24 May
£397pp
LHR
London Heathrow
Finnair
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Finnair
Direct
LHR
London Heathrow
25 Jan - 9 Feb
£397pp
LHR
London Heathrow
Finnair
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Finnair
Direct
LHR
London Heathrow
1 Feb - 3 Mar
£398pp
LHR
London Heathrow
Finnair
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Finnair
Direct
LHR
London Heathrow

Last-minute flights from Heathrow to Chicago

Late deals on return flights to Chicago from Heathrow, departing today and this week
11 Dec - 10 Jan
£312pp
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
9 Dec - 20 Dec
£342pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
11 Dec - 15 Dec
£380pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow

One-way flights to Chicago from Heathrow

The cheapest one-way flights from Heathrow to Chicago
08:40 - 18:10
TAP AIR PORTUGAL
1 stop
15h 30m
LHR - ORD
TAP AIR PORTUGAL
05:00 - 18:10
Multiple Airlines
2 stops
19h 10m
LHR - ORD
Multiple Airlines
£190
Kiwi.com
16:15 - 18:10
Multiple Airlines
2 stops
31h 55m
LHR - ORD
Multiple Airlines
£192
Kiwi.com

Related info for your journey

Useful info, stats and facts about Heathrow to Chicago flights.

Flight FAQs

From Heathrow to Chicago

Are flight prices decreasing from Heathrow to Chicago due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Heathrow and Chicago for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from London Heathrow to Chicago to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Some of the new policies that have been implemented to accommodate travellers flying from London Heathrow to Chicago are improved sanitation, HEPA filters, mask requirements, socially-distanced seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from London Heathrow to Chicago have flexible cancellations due to COVID-19?

British Airways, United Airlines, and American Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Heathrow to Chicago for under £375 on Cheapflights?

Yes, there are multiple flights from Heathrow to Chicago for under £375. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £312, but on average you can expect to pay £339.

Are there direct flights from Heathrow to Chicago for under £450 on Cheapflights?

Cheapflights has 20 direct flights from Heathrow to Chicago under £450. A good price for a direct flight from Heathrow to Chicago is less than £424.

Are there last-minute flights available from Heathrow to Chicago for under £375?

There are currently 20+ open flights from Heathrow to Chicago within the next 7 days for less than £375.

What days are direct flights available from Heathrow to Chicago?

Direct flights can be found on the following days: Sunday, Tuesday, Friday, Saturday.

How many flights depart from Heathrow to Chicago on average per day?

Per day, 9 flights depart from London Heathrow to Chicago on average.
Morning (6am - Midday) - 100% of flight departures

Is Heathrow weather warmer or cooler than Chicago?

Our data indicates that the weather will be 29 °C on average in the month of July. The temperature in Chicago is typically hotter than in Heathrow. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long does is the flight from Heathrow to Chicago?

There are many flights that can get you from Heathrow to Chicago in 11h 10m. Fly via Icelandair, Virgin Atlantic, or KLM to get the fastest option. Heathrow and Chicago are separated by a distance of 3964 mi. This flight may include one or multiple stops.

What are the cheapest airlines to flying from Heathrow to Chicago return?

Flying on TAP AIR PORTUGAL is currently your cheapest option to Chicago, with prices starting at £312. Additional return tickets that might be worth considering are offered by Alitalia and Icelandair, with the lowest prices starting at £350 and £357, respectively. These flights start at 17% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Heathrow to Chicago one-way?

For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £227.

Alternative routes for Heathrow to Chicago

Destination information for Chicago

Things to know before you go. Useful info for your trip from Heathrow to Chicago
Today's exchange rate
£1 = $1.34
Average temperature for December in Chicago
3.0 °C
Avg rainfall for December in Chicago
31.0 mm

Airports servicing London

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Top 10 airlines from Heathrow to Chicago

The chart below displays the airlines Cheapflights users travelling from Heathrow to Chicago choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Air Canada
£352 £496 No cancel fee 67%
Search Air Canada flights
SWISS
£353 £513 No change fee 79%
Search SWISS flights
Brussels Airlines
£352 £521 No change fee N/A
Search Brussels Airlines flights
Virgin Atlantic
£345 £528 No cancel fee 72%
Search Virgin Atlantic flights
TAP AIR PORTUGAL
£412 £584 No change fee N/A
Search TAP AIR PORTUGAL flights
Delta
£330 £585 No cancel fee N/A
Search Delta flights
Lufthansa
£349 £586 No change fee 76%
Search Lufthansa flights
Air France
£360 £606 No change fee 77%
Search Air France flights
KLM
£368 £610 No change fee 75%
Search KLM flights
Austrian Airlines
£358 £611 No change fee 78%
Search Austrian Airlines flights

Hourly flight availability from Heathrow to Chicago

Morning 6 AM to midday 64% of flight departures
Afternoon Midday to 6 PM 35% of flight departures
Early morning Midnight to 6 AM 1% of flight departures
Evening 6 PM to midnight 0% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Heathrow to Chicago
Sunday
3 daily flights
Monday
7 daily flights
Tuesday
11 daily flights
Wednesday
3 daily flights
Thursday
2 daily flights
Friday
2 daily flights
Saturday
3 daily flights
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