To save up to 14% on this flight, we recommend booking at least 50 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 £540 1-2 weeks out and tickets from £582 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 £527 for the month, but tickets can be as low as £307. 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
£380 - £424
Route
Depart
Return
Price
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Sun 15/9
1 stop14h 10m
Chicago O'Hare Intl
Sat 28/9
1 stop12h 45m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Mon 9/9
Nonstop8h 40m
Chicago O'Hare Intl
Mon 23/9
Nonstop7h 50m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Tue 10/9
1 stop12h 30m
Chicago O'Hare Intl
Tue 24/9
1 stop13h 35m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Wed 15/5
1 stop12h 05m
Chicago O'Hare Intl
Mon 20/5
1 stop10h 45m
ManchesterChicago O'Hare Intl
MAN - ORD
MANORD
Manchester
Fri 27/9
1 stop14h 10m
Chicago O'Hare Intl
Sat 5/10
1 stop31h 25m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Wed 15/5
1 stop11h 10m
Chicago O'Hare Intl
Wed 22/5
Nonstop8h 10m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Tue 14/5
1 stop15h 55m
Chicago O'Hare Intl
Sun 19/5
1 stop31h 50m
London GatwickChicago O'Hare Intl
LGW - ORD
LGWORD
London Gatwick
Mon 9/9
1 stop15h 00m
Chicago O'Hare Intl
Wed 9/10
1 stop14h 00m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Wed 15/5
1 stop13h 05m
Chicago O'Hare Intl
Mon 20/5
1 stop10h 25m
No data available for this route at this time. Please check back soon.
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Terrible flight crew that skipped our row for service multiple times.
1%of flight departures | Early morningMidnight to 6 am |
---|---|
61%of flight departures | Morning6 am to noon |
38%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
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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.
Cheapflights does show flights with no change fees to all users. To see these options for flights from United Kingdom to Illinois, users can toggle the no change fees filter when performing a flight search.
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.