To save up to 6% 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 London Heathrow Airport to Illinois from £538 1-2 weeks out and tickets from £553 for flights departing within the next 72 hours.
February can be a great time to fly to Illinois from London Heathrow Airport with a flight ticket averaging about £535. Cheapflights users have found deals in the month of February for as cheap as £368. The most expensive prices can be found in the month of July.
When flying from London Heathrow Airport 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
£371 - £487
Route
Depart
Return
Price
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Wed 6/11
1 stop15h 30m
Chicago O'Hare Intl
Wed 13/11
1 stop14h 15m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Sat 2/11
1 stop17h 25m
Chicago O'Hare Intl
Sat 9/11
2 stops16h 20m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Wed 4/9
1 stop14h 10m
Chicago O'Hare Intl
Tue 24/9
1 stop18h 55m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Thu 7/11
1 stop13h 10m
Chicago O'Hare Intl
Wed 13/11
1 stop12h 25m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Mon 28/10
Nonstop8h 55m
Chicago O'Hare Intl
Mon 4/11
1 stop13h 02m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Thu 5/9
2 stops19h 05m
Chicago O'Hare Intl
Thu 19/9
3 stops26h 50m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Tue 10/9
Nonstop8h 40m
Chicago O'Hare Intl
Tue 24/9
1 stop19h 35m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Mon 16/9
Nonstop8h 40m
Chicago O'Hare Intl
Mon 23/9
Nonstop7h 50m
London HeathrowChicago O'Hare Intl
LHR - ORD
LHRORD
London Heathrow
Tue 12/11
1 stop13h 55m
Chicago O'Hare Intl
Tue 19/11
Nonstop8h 05m
No data available for this route at this time. Please check back soon.
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Entertainment
Overall
Food
Boarding
Comfort
Crew
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
1%of flight departures | Early morningMidnight to 6 am |
---|---|
58%of flight departures | Morning6 am to noon |
41%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
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