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Flights to Chicago

£276 Cheap flights to Chicago

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Chicago departing on 7/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from the United Kingdom to Chicago

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:15 - 21:25
EDI
-
ORD
31h 10m
2 stops
Multiple Airlines Logo
22:25 - 00:35
ORD
-
EDI
20h 10m
2 stops
£507Multiple Airlines
Tue, 2 Jun - Mon, 8 Jun
Multiple Airlines Logo
06:55 - 17:50
MAN
-
ORD
16h 55m
2 stops
Multiple Airlines Logo
19:25 - 11:40
ORD
-
MAN
10h 15m
1 stop
£511Multiple Airlines
Thu, 3 Sep - Thu, 17 Sep
TAP AIR PORTUGAL Logo
18:45 - 16:00
LHR
-
ORD
27h 15m
1 stop
TAP AIR PORTUGAL Logo
18:00 - 12:45
ORD
-
LHR
12h 45m
1 stop
£513TAP AIR PORTUGAL
Thu, 8 Oct - Wed, 14 Oct
Icelandair Logo
13:00 - 18:15
LGW
-
ORD
11h 15m
1 stop
Icelandair Logo
22:25 - 14:40
ORD
-
LGW
10h 15m
1 stop
£514Icelandair
Tue, 8 Sep - Wed, 16 Sep
Icelandair Logo
13:05 - 21:25
LHR
-
ORD
14h 20m
1 stop
Icelandair Logo
22:25 - 20:20
ORD
-
LHR
15h 55m
1 stop
£514Icelandair
Fri, 9 Oct - Fri, 16 Oct
Icelandair Logo
15:40 - 18:15
LGW
-
ORD
32h 35m
1 stop
Icelandair Logo
19:25 - 14:40
ORD
-
LGW
13h 15m
1 stop
£515Icelandair
Thu, 8 Oct - Tue, 13 Oct
Scandinavian Airlines Logo
06:40 - 16:10
LHR
-
ORD
15h 30m
1 stop
Scandinavian Airlines Logo
19:15 - 16:25
ORD
-
LHR
15h 10m
2 stops
£521Scandinavian Airlines
Sat, 24 Oct - Sat, 7 Nov
Scandinavian Airlines Logo
07:05 - 16:10
LHR
-
ORD
15h 05m
2 stops
Scandinavian Airlines Logo
19:15 - 16:25
ORD
-
LHR
15h 10m
2 stops
£523Scandinavian Airlines
Wed, 14 Oct - Wed, 21 Oct
Austrian Airlines Logo
11:05 - 14:10
LHR
-
ORD
9h 05mdirect
Austrian Airlines Logo
18:35 - 09:00
ORD
-
LHR
8h 25mdirect
£525Austrian Airlines
Wed, 9 Sep - Tue, 15 Sep
United Airlines Logo
08:40 - 15:55
LHR
-
ORD
13h 15m
1 stop
United Airlines Logo
15:40 - 06:30
ORD
-
LHR
32h 50m
1 stop
£526United Airlines
Fri, 2 Oct - Sat, 3 Oct

momondo Fare Finder

 
Locate flights to Chicago that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 20 May 2026.
Use the filters below to find and compare flights to Chicago that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Tue 2/6

20:15-21:25

2 stops31h 10m

Chicago O'Hare Intl

Mon 8/6

22:25-00:35

2 stops20h 10m

£507

ManchesterChicago

MAN - ORD

MANORD

Manchester

Thu 3/9

06:55-17:50

2 stops16h 55m

Chicago O'Hare Intl

Thu 17/9

19:25-11:40

1 stop10h 15m

£511

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 8/10

18:45-16:00

1 stop27h 15m

Chicago O'Hare Intl

Wed 14/10

18:00-12:45

1 stop12h 45m

£513

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Tue 8/9

13:00-18:15

1 stop11h 15m

Chicago O'Hare Intl

Wed 16/9

22:25-14:40

1 stop10h 15m

£514

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 9/10

13:05-21:25

1 stop14h 20m

Chicago O'Hare Intl

Fri 16/10

22:25-20:20

1 stop15h 55m

£514

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 8/10

15:40-18:15

1 stop32h 35m

Chicago O'Hare Intl

Tue 13/10

19:25-14:40

1 stop13h 15m

£515

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 24/10

06:40-16:10

1 stop15h 30m

Chicago O'Hare Intl

Sat 7/11

19:15-16:25

2 stops15h 10m

£521

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 14/10

07:05-16:10

2 stops15h 05m

Chicago O'Hare Intl

Wed 21/10

19:15-16:25

2 stops15h 10m

£523
Fastest return journey

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 9/9

11:05-14:10

Nonstop9h 05m

Chicago O'Hare Intl

Tue 15/9

18:35-09:00

Nonstop8h 25m

£525

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 2/10

08:40-15:55

1 stop13h 15m

Chicago O'Hare Intl

Sat 3/10

15:40-06:30

1 stop32h 50m

£526

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Chicago from

Chicago flights insights and trends

Explore insights for your Chicago flight to craft the best travel plan

What is the cheapest month to fly to Chicago?

The cheapest month to fly to Chicago from United Kingdom is in February. Flight prices, which tend to average around £432, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Chicago from United Kingdom during November instead. Flights to Chicago in November, while not as cheap as those in February, still average around £433.

What is the absolute cheapest flight to Chicago?

See prices from:

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Thursday when prices can be found for as low as £650. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Chicago is Sunday, with ticket prices averaging around £679.

What is the cheapest time of day to depart on your flight to Chicago?

Flying to Chicago from United Kingdom at midday is the least expensive time of day to depart. momondo users have found prices as low as £650 when looking at flights departing at midday. Flights in the afternoon are often more expensive, with an average ticket price of £675.

How far in advance should I book a flight to Chicago?

You are more likely to see cheaper flights to Chicago from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around £582 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from United Kingdom for as low as £477 on momondo.

Cheapest flights to Chicago

Find the cheapest flights to Chicago from your nearest city or airport
Find flights from London Heathrow Airport to Milwaukee
CHEAPEST MONTH TO FLY TO CHICAGO FROM LONDON HEATHROW AIRPORTSeptember20% cheaperFlying from London Heathrow Airport to Chicago costs on average just £450 in September
MOST EXPENSIVE MONTH TO FLY TO CHICAGO FROM LONDON HEATHROW AIRPORTJuly15% more expensiveIt costs about £650 for flights to Chicago from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO CHICAGO FROM LONDON HEATHROW AIRPORTJuly343% more users visitedMore momondo users searched in flights to Chicago from London Heathrow Airport in July than any other month

Cheap Chicago flight deals and tips

Summary info about Chicago flight prices, duration and airlines

Best One-Way Price

£276

Best Round-Trip Price

£507

Fastest flight time

17h 55m

Popular in

July
The best one-way flight price to Chicago from United Kingdom in the last 72 hours is £276 (Manchester to Chicago O'Hare Intl).
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The best round-trip flight price to Chicago from United Kingdom in the last 72 hours is £507 (Edinburgh Turnhouse to Chicago O'Hare Intl).
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The fastest flight to Chicago from United Kingdom takes 17h 55m (London Heathrow to Chicago O'Hare Intl).
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July has the highest demand for flights to Chicago, with a 15% price increase on average.
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Frequently asked questions about flying to Chicago

When is it best to fly to Chicago to go sightseeing?

When planning your flight to Chicago, consider that the months of May and June are typically considered the best times to visit if you are looking to go sightseeing. That is when the weather is most cooperative. Sights like Grant Park, Magnificent Mile, and Millennium Park are very popular tourist attractions.

How far in advance should I book a flight to Chicago?

The ideal time to book your flight to Chicago is 35 days in advance, when prices tend to average £536. However, in the past 72 hours, people saw flights from United Kingdom for as low as £419.

Is there an alternative airport near Chicago?

Finding an alternative and possibly cheaper destination airport near Chicago is possible. If you are planning a flight to Chicago, consider booking flights to Chicago Midway Airport (9 mi from Chicago city centre) or Chicago Greater Rockford Airport (79 mi from Chicago city centre).

Is there a cheaper alternative to flying into Chicago?

Prices vary based on where travellers are departing from, but on average, the cheapest airport to fly to in Chicago is Chicago Greater Rockford Airport where the average price is £64. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

Are there flights to Downtown?

Yes, flights to Downtown are served by Chicago’s Chicago O'Hare Intl airport which is 15.7 mi away.

What’s the closest airport to Grant Park?

The closest airport to Grant Park is Chicago O'Hare Intl, 16.2 mi away.

When did momondo last update prices for flights to Chicago?

Prices for flights to Chicago were last updated today.

How many operators does momondo search for flights to Chicago?

As of May 2026, there are 24 operators available to choose from for flights to Chicago.

How old do you have to be to fly to Chicago?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Chicago.

What documentation or ID do you need to fly to Chicago?

The necessary travel and health documents for your Chicago trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal to Chicago?

It is quick and easy to find flights to Chicago on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

Can I find flights to Chicago with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Chicago with this policy.

How can momondo help me find flights to Chicago?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to Chicago.

I’m not ready to book a flight to Chicago right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Chicago trip

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