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Cheap flights from Illinois (IL) to Heathrow (LHR)

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How to find the cheapest flight from
Illinois to Heathrow (LHR)

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

To save up to 38% on this flight, we recommend booking at least 51 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Illinois to Heathrow from $813 1-2 weeks out and tickets from $886 for flights departing within the next 72 hours.

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

February can be a great time to fly to Heathrow from Illinois with a flight ticket averaging about $634. Cheapflights users have found deals in the month of February for as cheap as $394. The most expensive prices can be found in the month of June.

Cheap flights from Illinois to Heathrow in August, September 2020

The best prices found for Illinois to LHR flights for August, September
9 Aug - 18 Aug
$398pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
ORD
Chicago O'Hare Intl
9 Aug - 20 Aug
$401pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
ORD
Chicago O'Hare Intl
9 Aug - 25 Aug
$414pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
ORD
Chicago O'Hare Intl

Illinois to Heathrow 2020 flight deals

Cheap flights to Heathrow from Illinois found for this year
2 Dec - 5 Dec
$363pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
9 Aug - 18 Aug
$398pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
ORD
Chicago O'Hare Intl
9 Aug - 20 Aug
$401pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
ORD
Chicago O'Hare Intl

Non-stop flights to Heathrow from Illinois

Save time with Illinois to Heathrow direct flight deals
13 Oct - 18 Nov
$596pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
ORD
Chicago O'Hare Intl
13 Oct - 18 Nov
$599pp
ORD
Chicago O'Hare Intl
Austrian Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Austrian Airlines
Non-Stop
ORD
Chicago O'Hare Intl
10 Nov - 18 Nov
$600pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Iberia
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Illinois to Heathrow

Late deals on round-trip flights to Heathrow from Illinois, departing today and this week
28 Jul - 11 Aug
$606pp
ORD
Chicago O'Hare Intl
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
27 Jul - 16 Sep
$649pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Austrian Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
27 Jul - 16 Sep
$654pp
ORD
Chicago O'Hare Intl
Austrian Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Austrian Airlines
 
1 STOP
ORD
Chicago O'Hare Intl

One-way flights to Heathrow from Illinois

The cheapest one-way flights from Illinois to Heathrow
12:38 pm - 1:45 pm
Multiple Airlines
2 Stops
19h 07m
ORD - LHR
Multiple Airlines
$142
FlyFar
3:45 pm - 1:45 pm
Multiple Airlines
2 Stops
40h 00m
ORD - LHR
Multiple Airlines
$159
Kiwi.com
7:10 am - 8:45 am
Multiple Airlines
2 Stops
19h 35m
ORD - LHR
Multiple Airlines

Related info for your journey

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

Flight FAQs

From Illinois to Heathrow

Are flight prices decreasing from Illinois to Heathrow 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 Illinois and Heathrow 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.

Can I find flights from Illinois to Heathrow for under $400 on Cheapflights?

Yes, there are multiple flights from Illinois to Heathrow for under $400. The cheapest flight booked recently is on Multiple Airlines for just $363, but on average you can expect to pay $422.

Are there nonstop flights from Illinois to Heathrow for under $600 on Cheapflights?

Cheapflights has at least 20 direct flights from Illinois to Heathrow under $600. A good price for a nonstop flight from Illinois to Heathrow is less than $608.

Are there last-minute flights available from Illinois to Heathrow for under $700?

There are currently 20+ open flights from Illinois to Heathrow within the next 7 days for less than $700.

What are the most popular airlines that fly from Illinois to Heathrow?

Before booking your flight from Illinois to Heathrow check out the most popular airlines for this route: Major Airline, American Airlines or Air Canada.

What are the most popular routes from Illinois to Heathrow?

The most popular route from Illinois to Heathrow is Chicago O'Hare Intl - London Heathrow. You may also consider Chicago Midway - London Heathrow or Moline Quad-City - London Heathrow.

What are the cheapest Flights from Illinois to Heathrow?

While on average a flight from Illinois to Heathrow is generally $633, our data shows the cheapest flight currently is $357. When looking at the most popular route, (Chicago O'Hare Intl - London Heathrow), you can expect to pay $369 for that flight.

What are the most reliable airlines from Illinois to Heathrow?

Consider Malaysia Airlines (100%), Aer Lingus (98%) or American Airlines (97%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Heathrow.

How long does is the flight from Illinois to Heathrow?

A quick flight from Illinois to Heathrow can take about 10h 15m. Icelandair provides one of the quickest options available for as low as $435. When browsing for deals, the options you’ll see will be for both nonstop and one-way flights.

What are the cheapest airlines to flying from Illinois to Heathrow round-trip?

Cheapflights users have booked flights from Illinois to Heathrow round-trip from $418. Another airline that can offer you cheap pricing is Icelandair.

Related searches

Flights to Heathrow from Illinois
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Arrival points for flights from Illinois to Heathrow

Destination information for Heathrow

Things to know before you go. Useful info for your trip from Illinois to Heathrow
Today's exchange rate
$1 = £0.77
Average temperature for August in Heathrow
75.2 °F
Avg rainfall for August in Heathrow
2.6 ″

Airports servicing

Bloomington (BMI)
Champaign (CMI)
Decatur (DEC)
Moline (MLI)
Marion (MWA)

Airports servicing London