BA's Club Suite offers private pods with doors on A350s, ensuring a more private experience.
BA's World Traveller Plus provides extra seat width and legroom, ideal for long-haul comfort.
Round-trip from | $574 (Icelandair) |
---|---|
One-way from | $553 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $869 |
Good round-trip deal | $749 or less |
Good one-way deal | $714 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Wed 9/10
1:05 pm-9:15 pm
1 stop14h 10m
Chicago O'Hare Intl
Wed 9/17
7:25 pm-11:55 am
1 stop10h 30m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Mon 8/25
6:00 am-12:10 pm
1 stop12h 10m
Chicago O'Hare Intl
Tue 9/9
10:30 pm-4:40 pm
1 stop12h 10m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Thu 10/9
6:15 am-6:50 pm
1 stop18h 35m
Chicago O'Hare Intl
Sun 10/12
4:01 pm-10:50 am
1 stop12h 49m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Sun 8/24
11:05 am-2:10 pm
Nonstop9h 05m
Chicago O'Hare Intl
Tue 9/9
6:00 pm-8:20 am
Nonstop8h 20m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Wed 9/3
5:00 pm-7:56 am
2 stops20h 56m
Chicago O'Hare Intl
Sat 9/13
10:11 am-6:20 am
2 stops14h 09m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Fri 9/12
6:00 am-1:20 pm
1 stop13h 20m
Chicago O'Hare Intl
Mon 9/29
9:25 pm-11:45 am
Nonstop8h 20m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Thu 9/11
2:10 pm-5:20 pm
Nonstop9h 10m
Chicago O'Hare Intl
Thu 9/18
4:00 pm-6:20 am
Nonstop8h 20m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Thu 9/11
9:30 am-6:54 pm
2 stops15h 24m
Chicago O'Hare Intl
Thu 9/18
10:50 am-6:30 am
1 stop13h 40m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Sun 8/17
9:15 am-11:55 am
Nonstop8h 40m
Chicago O'Hare Intl
Sun 11/23
6:35 pm-12:00 pm
1 stop11h 25m
LondonChicago
LHR - ORD
LHRORD
London Heathrow
Mon 8/25
6:50 am-11:55 am
1 stop11h 05m
Chicago O'Hare Intl
Fri 9/12
4:00 pm-6:20 am
Nonstop8h 20m
The price you pay for your flight from London Heathrow Airport to Chicago may vary depending on when you book. For the best chance of a lower fare, look to book 70 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to Chicago (average of $245). Flying from London Heathrow Airport to Chicago in March is currently the most expensive (average of $321). 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.
A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Chicago in the evening. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the afternoon.
The most flights from LHR to CHI are scheduled on a Monday (53 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (47 on average).
Reykjavik (KEF) – chosen by Cheapflights users on 67% of 1-stop itineraries from London Heathrow Airport to Chicago on Cheapflights.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $544.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 8h 00m.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 05m.
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Michael,Jul 2025
AMS - ATL
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Michael,Jul 2025
AMS - ATL
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Michael,Jul 2025
AMS - ATL
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Michael,Jul 2025
AMS - ATL
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Michael,Jul 2025
AMS - ATL
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Michael,Jul 2025
AMS - ATL
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$451 | Average$565 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$462 | Average$569 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$485 | Average$752 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$552 | Average$784 | FlexibilityNo cancel fee | On-time70% | |
Cheapest$558 | Average$789 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$568 | Average$736 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$582 | Average$793 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$583 | Average$792 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$586 | Average$967 | FlexibilityNo cancel fee | On-time78% | |
Cheapest$607 | Average$838 | FlexibilityNo cancel fee | On-time76% |