Cheap Flights from London to Illinois from £250

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

£250

Kiwi.com

02:10 - 19:47

Multiple Airlines

2 stops

23h 37m

STN - ORD

£262

Kiwi.com

02:10 - 19:47

Multiple Airlines

2 stops

23h 37m

STN - ORD

£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.

Hire a Car

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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.

Flights from Gatwick to Champaign from £1,287 pp

Flights from Gatwick to Midway from £511 pp

Flights from Gatwick to O'Hare Intl from £314 pp

Flights from Gatwick to St. Louis from £798 pp

Flights from Heathrow to Champaign from £773 pp

Flights from Heathrow to Midway from £448 pp

Flights from Heathrow to Moline from £1,268 pp

Flights from Heathrow to O'Hare Intl from £319 pp

Flights from Heathrow to Peoria from £873 pp

Flights from Heathrow to St. Louis from £565 pp

Flights from London City to Midway from £702 pp

Flights from London City to Moline from £1,935 pp

Flights from London City to O'Hare Intl from £381 pp

Flights from London City to Peoria from £1,331 pp

Flights from London City to St. Louis from £820 pp

Flights from Luton to O'Hare Intl from £304 pp

Flights from Luton to St. Louis from £783 pp

Flights from Southend to O'Hare Intl from £782 pp

Flights from Stansted to O'Hare Intl from £290 pp

Flights from Stansted to St. Louis from £836 pp

Destination information for Illinois

Things to know before you go - useful duration and weather info for your trip from London to Illinois.

£1 = $1.25

Airports servicing London

Heathrow (LHR)

Gatwick (LGW)

Stansted (STN)

London City (LCY)

Luton (LTN)

Southend (SEN)

Airports servicing

Belleville (BLV)

Bloomington (BMI)

Champaign (CMI)

Decatur Arpt (DEC)

Moline (MLI)

Marion (MWA)

Airline	Cheapest	Average	Flexibility	On-time
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

Cheap flights from London to Illinois

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)?

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

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

Cheap flights from London to Illinois in May, June 2022

The best prices found for LON to Illinois flights in May, June

London to Illinois 2022 flight deals

Cheap flights to Illinois from London found for this year

Direct flights to Illinois from London

Save time with London to Illinois direct flight deals

Last-minute flights from London to Illinois

Late deals on return flights to Illinois from London, departing today and this week

One-way flights to Illinois from London

The cheapest one-way flights from London to Illinois

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?

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

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

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

What days are nonstop flights available from London to Illinois?

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

What are the most popular routes from London to Illinois?

What are the most reliable airlines from London to Illinois?

What are the cheapest flights from London to Illinois?

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

Related searches

Flights to Illinois from London

Hire a Car

COVID Restrictions

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

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

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.

Airports servicing London

Airports servicing

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.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2022.

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