Cheap flights from London to Illinois

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

All the information you need to plan the best LON to ORD flight in 2022: compare London to Illinois flight prices with the expected peak season, weather and rainfall in Illinois.
When is the cheapest time to fly from London to Illinois (LON - IL)?

When flying from London to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 32% on flights from London to Illinois compared to booking the week you need them. Waiting 61 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 £427. For sooner than that we have options available in the next 3 days from £516.

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

October is one of the best times of the year to fly to Illinois from London. Prices for October average £400 per person but you can even find prices for as low as £280. The most expensive prices can be found in the month of July. Opting for a October flight can save you 33% on your journey compared to booking in July

Cheap flights from London to Illinois in May, June 2022

The best prices found for LON to Illinois flights in May, June
21 Jun - 28 Jun
£319pp
STN
London Stansted
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
15 Jun - 4 Jul
£322pp
STN
London Stansted
Multiple airlines
     
3 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
     
3 STOPS
STN
London Stansted
15 Jun - 4 Jul
£323pp
STN
London Stansted
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
     
3 STOPS
STN
London Stansted

London to Illinois 2022 flight deals

Cheap flights to Illinois from London found for this year
13 Sep - 27 Sep
£290pp
STN
London Stansted
Multiple airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
STN
London Stansted
6 Sep - 18 Sep
£299pp
STN
London Stansted
Multiple airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
STN
London Stansted
12 Sep - 19 Sep
£299pp
STN
London Stansted
Multiple airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
STN
London Stansted

Direct flights to Illinois from London

Save time with London to Illinois direct flight deals
1 Nov - 28 Nov
£415pp
LHR
London Heathrow
British Airways
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
British Airways
Direct
LHR
London Heathrow
2 Nov - 7 Nov
£431pp
LHR
London Heathrow
British Airways
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
British Airways
Direct
LHR
London Heathrow
1 Nov - 8 Nov
£442pp
LHR
London Heathrow
British Airways
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
British Airways
Direct
LHR
London Heathrow

Last-minute flights from London to Illinois

Late deals on return flights to Illinois from London, departing today and this week
1 Jun - 6 Jun
£324pp
STN
London Stansted
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
1 Jun - 6 Jun
£345pp
STN
London Stansted
Multiple airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
1 Jun - 6 Jun
£347pp
LTN
London Luton
Multiple airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LTN
London Luton

One-way flights to Illinois from London

The cheapest one-way flights from London to Illinois
02:10 - 19:47
Multiple Airlines
2 stops
23h 37m
STN - ORD
Multiple Airlines
£250
Kiwi.com
02:10 - 19:47
Multiple Airlines
2 stops
23h 37m
STN - ORD
Multiple Airlines
£262
Kiwi.com
02:10 - 19:47
Multiple Airlines
2 stops
23h 37m
STN - ORD
Multiple Airlines
£264
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">London</span> to <span class="emphasized">Illinois</span> flights.

Flight FAQs

From London to Illinois

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

Some of our airline partners flying from London to Illinois have new flexible policies in place due to COVID-19. Finnair, British Airways, and Virgin Atlantic are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Finnair with this kind of flexibility.

Can I find flights from London to Illinois for under £300 on Cheapflights?

Yes, there are multiple flights from London to Illinois for under £300. The cheapest flight booked recently is on Multiple Airlines for just £290, but on average you can expect to pay £307.

Are there nonstop flights from London to Illinois for under £500 on Cheapflights?

Cheapflights has at least 20 direct flights from London to Illinois under £500. A good price for a nonstop flight from London to Illinois is less than £481.

Are there last-minute flights available from London to Illinois for under £400?

There are currently 20+ open flights from London to Illinois within the next 7 days for less than £400.

What days are nonstop flights available from London to Illinois?

You can find nonstop flights on the following days: Wednesday, Friday.

How many flights depart from London to Illinois on average per day?

6 flight departures from London to Illinois per day on average.
Morning (6am - Noon) - 100% of flight departures

What are the most popular routes from London to Illinois?

While some choose either London Gatwick - Chicago O'Hare Intl or London Heathrow - Chicago Midway, London Heathrow - Chicago O'Hare Intl is the most popular route from London to Illinois.

What are the most reliable airlines from London to Illinois?

Before booking your flight to Illinois from London, check out the most reliable airlines to get you to your destination on time: SriLankan Airlines (98%), Gulf Air (95%), Qatar Airways( 94%).

What are the cheapest flights from London to Illinois?

Looking for the cheapest flight from London to Illinois? While on average our users pay £1,799, our data indicates the cheapest price to be £513. The most popular route (London Heathrow - Chicago O'Hare Intl), is priced around £319.

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

When booking a flight from London to Illinois, you may want to consider flying on American Airlines, Finnair or British Airways as they are the most popular for this route.

COVID Restrictions

View COVID Travel Restrictions for Illinois (IL)

Do I need a COVID test to fly to Illinois from London?

Information is based on travel restrictions from London to Illinois

Most visitors from London need to provide a negative COVID-19 test result and/or quarantine to enter Illinois.

COVID-19 testing requirements
Visitors from London must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Illinois.

Quarantine requirements
Visitors from London are not required to quarantine after entering Illinois.

Do I need a test to fly back to London from Illinois?

Returning to London from Illinois

COVID-19 testing requirements
Visitors from Illinois are not required to present a negative COVID-19 PCR test or antigen result upon entering London.

Quarantine requirements
Visitors from Illinois are not required to quarantine after entering London.

Hide COVID Travel Restrictions for Illinois (IL)

Destination points for flights from London to Illinois

Select to see more specific information for flights from London to all places in Illinois.

Destination information for Illinois

Things to know before you go - useful duration and weather info for your trip from London to Illinois.
Today's exchange rate
£1 = $1.25

Airports servicing London

Gatwick (LGW)
Stansted (STN)
London City (LCY)
Luton (LTN)
Southend (SEN)

Airports servicing

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

Top 10 airlines flying from London to Illinois

The chart below displays the airlines Cheapflights users travelling from London to Illinois 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
Norwegian Air UK
£242 £472 No cancel fee N/A
Search Norwegian Air UK flights
United Airlines
£257 £546 No cancel fee 69%
Search United Airlines flights
Delta
£264 £459 No cancel fee N/A
Search Delta flights
Norwegian
£275 £416 No cancel fee 74%
Search Norwegian flights
TAP AIR PORTUGAL
£280 £408 No cancel fee N/A
Search TAP AIR PORTUGAL flights
Virgin Atlantic
£354 £570 No cancel fee 72%
Search Virgin Atlantic flights
Iberia
£364 £508 No cancel fee 77%
Search Iberia flights
Icelandair
£389 £547 No cancel fee 76%
Search Icelandair flights
Scandinavian Airlines
£391 £555 No cancel fee 77%
Search Scandinavian Airlines flights
Brussels Airlines
£412 £603 No cancel fee N/A
Search Brussels Airlines flights
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