Cheap flights from Chicago to London from $0
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Discover deals on Chicago to London flights
Typical range $0–$0•Cheapest found $0
Checking latest prices...Find cheap flights from Chicago to London
Best
1 stop
8 Feb
DEP
20:25
ORD
1×
21:35
LHR
19h 10m
8 Feb
DEPARTURE
20:25 - 21:35
19h 10m
ORD
1 stop
LHR
1 stop
8 Feb
DEP
20:25
ORD
1×
17:30
LHR
15h 5m
8 Feb
DEPARTURE
20:25 - 17:30
15h 5m
ORD
1 stop
LHR
British Airways flights from Chicago to London
Our best British Airways deals on Chicago to London tickets
Best
8 Feb
DEP
17:10
ORD
06:55
LHR
7h 45m
8 Feb
DEPARTURE
17:10 - 06:55
7h 45m
ORD
LHR
8 Feb
DEP
18:25
ORD
08:15
LHR
7h 50m
8 Feb
DEPARTURE
18:25 - 08:15
7h 50m
ORD
LHR
American Airlines flights from Chicago to London
Our best American Airlines deals on Chicago to London tickets
Best
8 Feb
DEP
18:25
ORD
08:15
LHR
7h 50m
8 Feb
DEPARTURE
18:25 - 08:15
7h 50m
ORD
LHR
1 stop
8 Feb
DEP
11:44
ORD
1×
06:20
LHR
12h 36m
8 Feb
DEPARTURE
11:44 - 06:20
12h 36m
ORD
1 stop
LHR
TAP Air Portugal flights from Chicago to London
Our best TAP Air Portugal deals on Chicago to London tickets
Best
1 stop
8 Feb
DEP
20:25
ORD
1×
21:35
LHR
19h 10m
8 Feb
DEPARTURE
20:25 - 21:35
19h 10m
ORD
1 stop
LHR
1 stop
8 Feb
DEP
20:25
ORD
1×
17:30
LHR
15h 5m
8 Feb
DEPARTURE
20:25 - 17:30
15h 5m
ORD
1 stop
LHR
Air Canada flights from Chicago to London
Our best Air Canada deals on Chicago to London tickets
Best
1 stop
8 Feb
DEP
10:35
ORD
1×
07:10
LHR
14h 35m
8 Feb
DEPARTURE
10:35 - 07:10
14h 35m
ORD
1 stop
LHR
1 stop
8 Feb
DEP
12:50
ORD
1×
07:10
LHR
12h 20m
8 Feb
DEPARTURE
12:50 - 07:10
12h 20m
ORD
1 stop
LHR
Iberia flights from Chicago to London
Our best Iberia deals on Chicago to London tickets
Best
8 Feb
DEP
18:25
ORD
08:15
LHR
7h 50m
8 Feb
DEPARTURE
18:25 - 08:15
7h 50m
ORD
LHR
What's the cheapest day of the week to fly from Chicago to London?
If your flying dates are flexible, you should consider flying to London on a Sat, as we generally find the cheapest rates on that day. On the other hand, Mon is the most expensive day to fly.
What is the cheapest month to fly from Chicago to London?
The cheapest month for flights from Chicago to London is Sep, where tickets cost $511 on average. The most expensive months are Jul.
JanFebMarAprMayJunJulAugSepOctNovDec
$738$625$511
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Everything you should know
Cheapest one-way flight
$557
Typical prices: $557–$1114
When to book
3 weeks
in advance to save around 25%
Good to know
💰
Save money
Compare prices across airlines to find the best deal. Prices can vary significantly.
📅
Be flexible
Flying midweek or in off-peak seasons can save you up to 30% on airfare.
⏰
Book early
Booking 3+ weeks in advance typically offers the best prices.
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Frequently asked questions
The cheapest flight from Chicago to London currently costs AUD $557. Prices typically range from $557 to $557. Prices change frequently, so we recommend booking early and being flexible with your travel dates.