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Cheap flights from Illinois (IL) to London (LON)

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How to find the cheapest flight from
Illinois to London (LON)

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 51 days in advance, which can save you up to 38% on flights from Illinois to London compared to booking the week you need them. Waiting 51 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $813. For sooner than that we have options available in the next 3 days from $886.

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

Flights from Illinois to London lean towards being more expensive in June. Prices are generally better when you fly from Illinois to London in February, with the cheapest ticket starting at $394.

Cheap flights from Illinois to London in July, August 2020

The best prices found for Illinois to LON flights for July, August
20 Jul - 4 Mar
$569pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
SWISS
 
1 STOP
ORD
Chicago O'Hare Intl
21 Jul - 5 Mar
$573pp
ORD
Chicago O'Hare Intl
Lufthansa
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
 
1 STOP
ORD
Chicago O'Hare Intl
29 Jul - 31 Aug
$576pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl

Illinois to London 2020 flight deals

Cheap flights to London from Illinois found for this year
24 Oct - 11 Nov
$420pp
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl
12 Nov - 2 Dec
$422pp
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl
12 Nov - 2 Dec
$423pp
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl

Non-stop flights to London from Illinois

Save time with Illinois to London direct flight deals
4 Nov - 11 Nov
$578pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Austrian Airlines
Non-Stop
ORD
Chicago O'Hare Intl
25 Sep - 4 Oct
$586pp
ORD
Chicago O'Hare Intl
Norwegian Air UK
Non-Stop
LGW
London Gatwick
LGW
London Gatwick
Norwegian Air UK
Non-Stop
ORD
Chicago O'Hare Intl
21 Jul - 5 Mar
$591pp
ORD
Chicago O'Hare Intl
Lufthansa
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Illinois to London

Late deals on round-trip flights to London from Illinois, departing today and this week
28 Jun - 6 Jul
$716pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
SWISS
 
1 STOP
ORD
Chicago O'Hare Intl
28 Jun - 6 Jul
$724pp
ORD
Chicago O'Hare Intl
Lufthansa
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
 
1 STOP
ORD
Chicago O'Hare Intl
28 Jun - 14 Jul
$733pp
ORD
Chicago O'Hare Intl
Lufthansa
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Lufthansa
 
1 STOP
ORD
Chicago O'Hare Intl

One-way flights to London from Illinois

The cheapest one-way flights from Illinois to London
2:10 pm - 6:55 pm
TAP AIR PORTUGAL
1 Stop
22h 45m
ORD - LHR
TAP AIR PORTUGAL
$242
Gotogate
1:38 pm - 11:35 am
Multiple Airlines
3 Stops
39h 57m
ORD - LTN
Multiple Airlines
$277
Kiwi.com
3:30 pm - 7:45 am
Icelandair
1 Stop
10h 15m
ORD - LHR
Icelandair
$278
StudentUniverse

Related info for your journey

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

Flight FAQs

From Illinois to London

Are flight prices decreasing from Illinois to London 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 London 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 London for under $500 on Cheapflights?

Yes, there are multiple flights from Illinois to London for under $500. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $420, but on average you can expect to pay $431.

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

Cheapflights has at least 20 direct flights from Illinois to London under $600. A good price for a nonstop flight from Illinois to London is less than $604.

Are there last-minute flights available from Illinois to London for under $800?

There are currently 20+ open flights from Illinois to London within the next 7 days for less than $800.

How popular is this flight route?

Within the past month, 34 users have taken a look at flights from Illinois to London.

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

The most popular airlines flying from Illinois to London are Ryanair, Iberia and Lufthansa. Something to consider prior to booking your flight.

What are the most popular routes from Illinois to London?

When deciding which route to take from Illinois to London consider Chicago O'Hare Intl - London Heathrow, Chicago O'Hare Intl - London Gatwick or Chicago O'Hare Intl - London City as they are the most popular.

What are the cheapest Flights from Illinois to London?

While on average a flight from Illinois to London is generally $456, our data shows the cheapest flight currently is $264. When looking at the most popular route, (Chicago O'Hare Intl - London Heathrow), you can expect to pay $359 for that flight.

Destination information for London

Things to know before you go. Useful info for your trip from Illinois to London
Today's exchange rate
$1 = £0.80
Average temperature for July in London
73.4 °F
Avg rainfall for July in London
1.6 ″

Airports servicing

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

Airports servicing London

Heathrow (LHR)
Luton (LTN)
Stansted (STN)
City (LCY)
Southend (SEN)