Cheap flights from Heathrow to Chicago

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How to find the cheapest flight from
Heathrow (LHR) to Chicago (CHI)

All the information you need to plan the best LHR to CHI flight in 2021: compare Heathrow to Chicago flight prices with the expected peak season, weather and rainfall in Chicago.
LHR - CHI
Price
£292 - £476
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

£292

From Heathrow to Chicago

One-way from

£171

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.
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 £379 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 £457 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 £354. Cheapflights users have found deals in the month of October for as cheap as £248. The most expensive prices can be found in the month of July.

Cheap flights from Heathrow to Chicago in May, June 2021

The best prices found for LHR to CHI flights in May, June
6 Jun - 6 Sep
£259pp
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
6 Jun - 6 Sep
£267pp
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
16 Jun - 28 Jun
£271pp
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

Heathrow to Chicago 2021 flight deals

Cheap flights to Chicago from Heathrow found for this year
15 Sep - 20 Sep
£256pp
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
6 Jun - 6 Sep
£259pp
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
6 Jul - 19 Jul
£261pp
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

Direct flights to Chicago from Heathrow

Save time with Heathrow to Chicago direct flight deals
26 Oct - 3 Nov
£388pp
LHR
London Heathrow
Finnair
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Finnair
Direct
LHR
London Heathrow
2 Nov - 16 Nov
£411pp
LHR
London Heathrow
Austrian Airlines
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Austrian Airlines
Direct
LHR
London Heathrow
28 Oct - 4 Nov
£418pp
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
27 May - 3 Jun
£385pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
27 May - 3 Jun
£392pp
LHR
London Heathrow
Multiple airlines
     
3 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
22 May - 24 May
£428pp
LHR
London Heathrow
Virgin Atlantic
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Virgin Atlantic
 
1 STOP
LHR
London Heathrow

One-way flights to Chicago from Heathrow

The cheapest one-way flights from Heathrow to Chicago
07:20 - 16:05
TAP AIR PORTUGAL
1 stop
14h 45m
LHR - ORD
TAP AIR PORTUGAL
£171
mytrip.com
02:00 - 16:05
TAP AIR PORTUGAL
1 stop
20h 05m
LHR - ORD
TAP AIR PORTUGAL
£172
mytrip.com
14:45 - 16:05
TAP AIR PORTUGAL
1 stop
31h 20m
LHR - ORD
TAP AIR PORTUGAL
£177
Travel2Be

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Heathrow</span> to <span class="emphasized">Chicago</span> 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.

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

British Airways, United Airlines, and Finnair 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 £284 on Cheapflights?

Yes, there are multiple flights from Heathrow to Chicago for under £284. The cheapest flight booked recently is on TAP AIR PORTUGAL for just £256, but on average you can expect to pay £279.

Are there direct flights from Heathrow to Chicago for under £425 on Cheapflights?

Cheapflights has 20 direct flights from Heathrow to Chicago under £425. A good price for a direct flight from Heathrow to Chicago is less than £452.

Are there last-minute flights available from Heathrow to Chicago for under £425?

There are currently 20+ open flights from Heathrow to Chicago within the next 7 days for less than £425.

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 12h 19m. Fly via Virgin Atlantic, Delta, or Air France to get the fastest option. This flight may include one or multiple stops.

What is the cheapest airline to fly from Heathrow to Chicago return?

Flying on TAP AIR PORTUGAL is currently your cheapest option to Chicago, with prices starting at £256. This flight start at 28% 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 £171.

Alternative routes for Heathrow to Chicago

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Chicago

Things to know before you go - useful duration and weather info for your trip from Heathrow to Chicago.
Today's exchange rate
£1 = $1.42
Average temperature for May in Chicago
22.0 °C
Avg rainfall for May in Chicago
109.0 mm

Airports servicing London

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Top 10 airlines flying 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 cancel fee 79%
Search SWISS flights
Brussels Airlines
£352 £521 No cancel 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 cancel fee N/A
Search TAP AIR PORTUGAL flights
Delta
£330 £585 No cancel fee N/A
Search Delta flights
Lufthansa
£349 £586 No cancel fee 76%
Search Lufthansa flights
Air France
£360 £606 No cancel fee 77%
Search Air France flights
KLM
£368 £610 No cancel fee 75%
Search KLM flights
Austrian Airlines
£358 £611 No cancel fee 78%
Search Austrian Airlines flights

Hourly flight availability from Heathrow to Chicago

See what time of day planes typically take off from Heathrow towards Chicago.
Morning 6 AM to midday 100% of flight departures
Early morning Midnight to 6 AM 0% of flight departures
Afternoon Midday to 6 PM 0% 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
See how many times per day planes take to the skies headed from Heathrow to Chicago.
Sunday
18 daily flights
Monday
18 daily flights
Tuesday
18 daily flights
Wednesday
18 daily flights
Thursday
18 daily flights
Friday
18 daily flights
Saturday
18 daily flights
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