Cheap Flights to Illinois

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Home North America USA Cheap flights to Illinois, United States

Flights to Illinois in 2022

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
Popular inJulyHigh demand for flights, 20% potential price rise
Cheapest inOctoberBest time to find cheap flights, 4% potential price drop
Average price£372Average for round-trip flights in May 2022
Round-trip from£300From London to Illinois
One-way from£8One-way flight from London to Illinois

Cheap flights to Illinois in May, June 2022

The best prices found for ORD flights for May, June
8 Jun - 22 Jun
£328pp
STN
London Stansted
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
8 Jun - 22 Jun
£332pp
LTN
London Luton
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LTN
London Luton
22 Jun - 27 Jun
£346pp
STN
London Stansted
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted

Illinois 2022 flight deals

Cheap flights to Illinois found for this year
9 Nov - 25 Nov
£295pp
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
9 Nov - 14 Nov
£297pp
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick
8 Nov - 5 Dec
£300pp
LGW
London Gatwick
TAP AIR PORTUGAL
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
TAP AIR PORTUGAL
 
1 STOP
LGW
London Gatwick

Last minute flights to Illinois

Late deals on return flights to Illinois, departing today and this week
18 May - 12 Jun
£383pp
STN
London Stansted
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
17 May - 12 Jun
£384pp
STN
London Stansted
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
18 May - 12 Jun
£384pp
LGW
London Gatwick
Multiple airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
LGW
London Gatwick

COVID Restrictions

View COVID Travel Restrictions for Illinois

Can I fly to Illinois from United Kingdom right now?

Information is based on travel restrictions from United Kingdom to Illinois

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

COVID-19 testing requirements
Visitors from United Kingdom 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 United Kingdom are not required to quarantine after entering Illinois.

Can I fly back to United Kingdom from Illinois?

Returning to United Kingdom 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 United Kingdom.

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

Hide COVID Travel Restrictions for Illinois

Cheapest prices for Illinois flights by month

The cheapest ticket to Illinois found for each month in 2022 based on historical flight searches by Cheapflights users.
January
£461
February
£476
March
£521
April
£521
May
£545
June
£586
July
£623
August
£573
September
£511
October
£543
November
£525
December
£573

When is the best time to fly to Illinois?

Average Chicago flight ticket prices and weather conditions for 2022 and 2023 by month.
LON - CHI
Price
£471 - £727
CHI
Temperature
1 - 29 °C
CHI
Rainfall
17 - 109 mm

When is the best time to book a flight to Illinois?

The best time to book flights to Illinois is 61 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Which day is cheapest to fly to Illinois?

The cheapest day to fly to Illinois is usually Wednesday. At the moment, Sunday is the most expensive.

What time of day is cheapest to fly to Illinois?

Flights in the evening are typically the cheapest time of the day to fly to Illinois. Flights in the afternoon are usually the most expensive.

Sitting along the banks of the Mississippi River and Lake Michigan, Illinois’s accessible location has for centuries made it an important hub. Historically emigrants from Mexico, Ireland and Poland would make the long journey over in search of work and a new home. Abraham Lincoln was among those who called Illinois home and the state honoured him by naming the small city of Lincoln after him – before he became president.

Most travellers booking flights to Illinois would probably pick Chicago as their city of choice for its renowned restaurant scene and shopping but there’s so much more to see in including 6,900 kilometres of shoreline and more than 50 state parks, making it one of the most scenic states in the US.

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Illinois climate

Illinois’s winters are very cold and long with snow and icy winds from late November through to April. Summers, especially July and August, the weather tends to be hot and humid. The best times to visit is when the weather is perfect, in spring and autumn; tornado season can occur anytime between the months of March and May. Chicago’s summers are humid with highs of 30 degrees (Celsius) or more and its winters are bitterly cold.

When is the best time to fly to Illinois?

Peak Season:
Winter is peak season in Illinois for skiing and snowmobiling. In summer many different festivals take place in Chicago’s parks and neighbourhoods almost every weekend, making it difficult to find a cheap Illinois flight.

Off Season:
The best month to book a cheap Illinois flight is September, which is also the mildest month. Autumn is visually the prettiest time to visit when the temperature is still mild and the foliage is changing. The quietest months in Chicago are from January to March but they can also be the coldest and windiest.

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Getting around Illinois

Public transportation is reliable and taxis are easy to find. Driving is not recommended because of heavy traffic and parking is almost impossible to find. The El, a system operated by The Chicago Transit Authority consists of elevated trains running 24 hours a day. During the summer rush hour a River Bus is available.

Alternative, similarly priced destinations

See alternative destinations where airfare is generally forecast to be close to Illinois flight prices.

Cheapest flights to USA

Not set on Illinois? See the cheapest flights to United Kingdom. Airfare prices updated on May 12, 2022.
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