To save up to 8% on this flight, we recommend booking at least 28 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from United Kingdom to Illinois from £519 1-2 weeks out and tickets from £577 for flights departing within the next 72 hours.
Our data shows that February tends to be the cheapest month to fly to Illinois from United Kingdom. Users have commonly found prices around £531 for the month, but tickets can be as low as £370. Due to multiple factors, prepare for potentially higher prices in July.
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.
Fly from
Fly to
Budget
£358 - £453
Route
Depart
Return
Price
London GatwickChicago O'Hare Intl
LGW - ORD
LGWORD
London Gatwick
週四 5/9
1 stop19h 43m
Chicago O'Hare Intl
週三 11/9
1 stop16h 00m
ManchesterChicago O'Hare Intl
MAN - ORD
MANORD
Manchester
週二 5/11
1 stop11h 25m
Chicago O'Hare Intl
週二 12/11
1 stop10h 15m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
週三 20/11
1 stop15h 30m
Chicago O'Hare Intl
週日 24/11
1 stop15h 05m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
週一 9/9
2 stops50h 50m
Chicago O'Hare Intl
週一 23/9
1 stop19h 55m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
週三 30/10
Nonstop8h 55m
Chicago O'Hare Intl
週一 4/11
1 stop13h 22m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
週一 9/9
1 stop17h 20m
Chicago O'Hare Intl
週一 23/9
Nonstop8h 15m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
週一 9/9
1 stop25h 56m
Chicago O'Hare Intl
週一 23/9
1 stop10h 47m
London GatwickChicago O'Hare Intl
LGW - ORD
LGWORD
London Gatwick
週二 24/9
1 stop13h 15m
Chicago O'Hare Intl
週二 8/10
1 stop16h 30m
ManchesterChicago O'Hare Intl
MAN - ORD
MANORD
Manchester
週一 9/9
1 stop10h 40m
Chicago O'Hare Intl
週一 16/9
1 stop11h 10m
No data available for this route at this time. Please check back soon.
Comfort
Overall
Food
Boarding
Crew
Entertainment
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Comfort
Overall
Food
Boarding
Crew
Entertainment
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Comfort
Overall
Food
Boarding
Crew
Entertainment
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Comfort
Overall
Food
Boarding
Crew
Entertainment
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Comfort
Overall
Food
Boarding
Crew
Entertainment
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
Comfort
Overall
Food
Boarding
Crew
Entertainment
Reviews
One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida
1%of flight departures | Early morningMidnight to 6 am |
---|---|
46%of flight departures | Morning6 am to noon |
53%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
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Yes, Cheapflights offers price alerts on United Kingdom to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.