Fly from
Fly to
Route
Depart
Return
Price
LondonChicago
LGW - ORD
LGWORD
London Gatwick
Thu 5/12
15:55-15:30
1 stop29h 35m
Chicago O'Hare Intl
Sun 8/12
20:25-15:45
1 stop13h 20m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Thu 5/12
18:30-15:30
1 stop27h 00m
Chicago O'Hare Intl
Sun 8/12
20:25-17:30
1 stop15h 05m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Mon 13/1
06:40-15:50
1 stop15h 10m
Chicago O'Hare Intl
Mon 27/1
19:10-17:00
2 stops15h 50m
LondonChicago
LGW - ORD
LGWORD
London Gatwick
Fri 7/2
11:55-17:20
1 stop11h 25m
Chicago O'Hare Intl
Thu 24/4
19:30-14:40
1 stop13h 10m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Tue 18/3
07:00-15:30
1 stop13h 30m
Chicago O'Hare Intl
Mon 24/3
16:50-10:15
1 stop12h 25m
LondonChicago
LTN - ORD
LTNORD
London Luton
Thu 16/1
07:05-17:20
2 stops16h 15m
Chicago O'Hare Intl
Wed 22/1
18:30-21:40
2 stops21h 10m
LondonChicago
LGW - ORD
LGWORD
London Gatwick
Mon 27/1
14:00-16:08
1 stop32h 08m
Chicago O'Hare Intl
Thu 6/2
12:17-10:00
1 stop15h 43m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Thu 5/12
07:50-14:00
1 stop12h 10m
Chicago O'Hare Intl
Tue 10/12
15:55-08:05
1 stop10h 10m
LondonChicago
LHR - MDW
LHRMDW
London Heathrow
Mon 17/2
06:30-18:14
2 stops17h 44m
Chicago Midway
Thu 27/2
14:08-06:50
1 stop10h 42m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Mon 13/1
06:20-17:20
2 stops17h 00m
Chicago O'Hare Intl
Mon 27/1
18:30-18:20
2 stops17h 50m
Currently, January is the cheapest month in which you can book a flight from United Kingdom to Illinois (average of £598). Flying from United Kingdom to Illinois in July is currently the most expensive (average of £774). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from United Kingdom 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.
The most flights from GB0 to USIL are scheduled on a Monday (36 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 on average).
In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.
If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
Overall
Entertainment
Comfort
Crew
Boarding
Food
Reviews
It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Overall
Entertainment
Comfort
Crew
Boarding
Food
Reviews
It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Overall
Entertainment
Comfort
Crew
Boarding
Food
Reviews
It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Overall
Entertainment
Comfort
Crew
Boarding
Food
Reviews
It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Overall
Entertainment
Comfort
Crew
Boarding
Food
Reviews
It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Overall
Entertainment
Comfort
Crew
Boarding
Food
Reviews
It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
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By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from United Kingdom.
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