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Flights to Chicago O'Hare Intl

£239 Cheap flights to Chicago O'Hare Intl Airport

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 O'Hare Intl Airport departing on 15/4. 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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0 bags

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Find the cheapest flights from the United Kingdom to Chicago O'Hare Intl Airport

Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
15:40 - 18:15
LGW
-
ORD
32h 35m
1 stop
Icelandair Logo
22:25 - 14:40
ORD
-
LGW
10h 15m
1 stop
£390Icelandair
Wed, 22 Apr - Sun, 26 Apr
Icelandair Logo
12:15 - 18:20
LHR
-
ORD
11h 05m
1 stop
Icelandair Logo
19:25 - 11:55
ORD
-
LHR
10h 30m
1 stop
£390Icelandair
Wed, 18 Mar - Mon, 30 Mar
Icelandair Logo
13:00 - 18:15
LGW
-
ORD
11h 15m
1 stop
Icelandair Logo
19:25 - 14:40
ORD
-
LGW
13h 15m
1 stop
£391Icelandair
Thu, 30 Apr - Thu, 7 May
Scandinavian Airlines Logo
07:05 - 16:55
LHR
-
ORD
15h 50m
2 stops
Scandinavian Airlines Logo
20:20 - 17:40
ORD
-
LHR
16h 20m
1 stop
£391Scandinavian Airlines
Fri, 6 Mar - Wed, 11 Mar
Scandinavian Airlines Logo
10:20 - 17:45
LHR
-
ORD
12h 25m
1 stop
Scandinavian Airlines Logo
20:20 - 17:40
ORD
-
LHR
16h 20m
1 stop
£392Scandinavian Airlines
Thu, 12 Mar - Mon, 23 Mar
TAP AIR PORTUGAL Logo
16:00 - 15:25
LGW
-
ORD
29h 25m
1 stop
TAP AIR PORTUGAL Logo
20:25 - 15:45
ORD
-
LGW
13h 20m
1 stop
£393TAP AIR PORTUGAL
Thu, 26 Feb - Sun, 1 Mar
TAP AIR PORTUGAL Logo
06:00 - 14:45
LHR
-
ORD
14h 45m
1 stop
TAP AIR PORTUGAL Logo
18:00 - 18:50
ORD
-
LHR
18h 50m
1 stop
£394TAP AIR PORTUGAL
Sun, 8 Mar - Sun, 19 Apr
Aer Lingus Logo
20:00 - 14:15
SOU
-
ORD
24h 15m
2 stops
Aer Lingus Logo
15:45 - 08:40
ORD
-
SOU
10h 55m
1 stop
£751Aer Lingus
Tue, 7 Apr - Sun, 12 Apr
British Airways Logo
12:25 - 19:15
SOU
-
ORD
12h 50m
1 stop
British Airways Logo
16:50 - 08:45
ORD
-
SOU
10h 55m
1 stop
£765British Airways
Wed, 4 Mar - Sun, 8 Mar
British Airways Logo
12:25 - 19:15
SOU
-
ORD
12h 50m
1 stop
British Airways Logo
20:40 - 19:40
ORD
-
SOU
18h 00m
1 stop
£767British Airways
Wed, 4 Mar - Sun, 8 Mar

momondo Fare Finder

 
Locate flights to Chicago O'Hare Intl 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 10 February 2026.
Use the filters below to find and compare flights to Chicago O'Hare Intl Airport that are best for you.

Fly from

Route

Depart

Return

Price

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 22/4

15:40-18:15

1 stop32h 35m

Chicago O'Hare Intl

Sun 26/4

22:25-14:40

1 stop10h 15m

£390

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 18/3

12:15-18:20

1 stop11h 05m

Chicago O'Hare Intl

Mon 30/3

19:25-11:55

1 stop10h 30m

£390

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 30/4

13:00-18:15

1 stop11h 15m

Chicago O'Hare Intl

Thu 7/5

19:25-14:40

1 stop13h 15m

£391

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 6/3

07:05-16:55

2 stops15h 50m

Chicago O'Hare Intl

Wed 11/3

20:20-17:40

1 stop16h 20m

£391

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 12/3

10:20-17:45

1 stop12h 25m

Chicago O'Hare Intl

Mon 23/3

20:20-17:40

1 stop16h 20m

£392

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 26/2

16:00-15:25

1 stop29h 25m

Chicago O'Hare Intl

Sun 1/3

20:25-15:45

1 stop13h 20m

£393

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 8/3

06:00-14:45

1 stop14h 45m

Chicago O'Hare Intl

Sun 19/4

18:00-18:50

1 stop18h 50m

£394

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Tue 7/4

20:00-14:15

2 stops24h 15m

Chicago O'Hare Intl

Sun 12/4

15:45-08:40

1 stop10h 55m

£751

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Wed 4/3

12:25-19:15

1 stop12h 50m

Chicago O'Hare Intl

Sun 8/3

16:50-08:45

1 stop10h 55m

£765

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Wed 4/3

12:25-19:15

1 stop12h 50m

Chicago O'Hare Intl

Sun 8/3

20:40-19:40

1 stop18h 00m

£767

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago O'Hare Intl Airport from

Flights to Chicago O'Hare Intl Airport – Travel Insights & Trends

Get data-powered insights and trends for flights to Chicago O'Hare Intl Airport to help you craft the best travel plan.

What cabin class options are available on United Kingdom to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on United Kingdom to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart from United Kingdom to Chicago O'Hare Intl Airport is on a Wednesday. Travellers who choose to depart for Chicago O'Hare Intl Airport on a Wednesday will often find tickets for as low as £611. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Chicago O'Hare Intl Airport on Saturday is £648.

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The cheapest month to fly to Chicago O'Hare Intl Airport from United Kingdom is in September. Flight prices, which tend to average around £436, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Chicago O'Hare Intl Airport from United Kingdom during February instead. Flights to Chicago O'Hare Intl Airport in February, while not as cheap as those in September, still average around £438.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest time of day to fly to Chicago O'Hare Intl Airport is at midday when flights can be purchased for as low as £625. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the afternoon when prices are around £658.

What is the cheapest United Kingdom to Chicago O'Hare Intl flight route?

Fly from London Heathrow to Chicago O'Hare Intl for the best United Kingdom - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around £533 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from United Kingdom for as low as £506 on momondo.

Cheapest flights to Chicago O'Hare Intl

Find the cheapest flights to Chicago O'Hare Intl from your nearest city or airport
Find flights from London Heathrow Airport to Chicago O'Hare Intl Airport
CHEAPEST MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM LONDON HEATHROW AIRPORTSeptember20% cheaperFlying from London Heathrow Airport to Chicago O'Hare Intl Airport costs on average just £428 in September
MOST EXPENSIVE MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM LONDON HEATHROW AIRPORTJuly28% more expensiveIt costs about £687 for flights to Chicago O'Hare Intl Airport from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM LONDON HEATHROW AIRPORTJuly314% more users visitedMore momondo users searched in flights to Chicago O'Hare Intl Airport from London Heathrow Airport in July than any other month

Cheap Chicago O'Hare Intl Airport flight deals and tips

Summary info about Chicago O'Hare Intl Airport flight prices, duration and airlines

Best One-Way Price

£239

Best Round-Trip Price

£390

Fastest flight time

12h 40m

Popular in

July
The best one-way flight price to Chicago from United Kingdom in the last 72 hours is £239 (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 £390 (London Gatwick to Chicago O'Hare Intl).
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The fastest flight to Chicago from United Kingdom takes 12h 40m (London City to Chicago O'Hare Intl).
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July has the highest demand for flights to Chicago, with a 16% price increase on average.
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Frequently asked questions about flying to Chicago O'Hare Intl Airport

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

In general, when looking for the cheapest flight to Chicago O'Hare Intl Airport, try to choose a flight departing in September for the best deal.

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

From most locations, booking your flights to Chicago O'Hare Intl Airport around 61 days prior to your departure date finds the best deals.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

From most locations, the cheapest flights to Chicago O'Hare Intl Airport are found on a Wednesday. Booking a Saturday departure is usually the most expensive.

What is the cheapest time of day to fly to Chicago O'Hare Intl Airport?

On average you can find the best deals on plane tickets to Chicago O'Hare Intl Airport when looking for flights with Midday departure times.

Is there an alternative airport near Chicago O'Hare Intl Airport?

Chicago Midway Airport or Chicago Greater Rockford Airport can be an alternative airport used for travel to Chicago.

Is there a cheaper alternative to flying into Chicago?

Chicago Midway Airport has an average price of £269 per person and is typically the cheapest airport to fly into when visiting Chicago. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

What is the absolute cheapest flight to Chicago?

The best price found on momondo to Chicago was £144/pp from Phoenix, which is 46% cheaper than the average flight price to Chicago. To find the cheapest price to Chicago from your area, use momondo’s Airport-to-Airport Pricing Tool.

Which airlines fly to Chicago O'Hare Intl Airport?

There are 16 airlines that fly to Chicago O'Hare Intl Airport on a routine basis, but British Airways, Aer Lingus and Icelandair happen to be the most popular among our users. In the past year, 54% of those who searched for flights to Chicago O'Hare Intl Airport looked to travel with British Airways, making this airline the top choice among momondo travellers.

When did momondo last update prices for flights to Chicago O'Hare Intl Airport?

Prices for flights to Chicago O'Hare Intl Airport are updated daily.

How many operators does momondo search for flights to Chicago O'Hare Intl Airport?

The number of operators available for flights to Chicago O'Hare Intl Airport is 27 as of February 2026.

How old do you have to be to fly to Chicago O'Hare Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Chicago O'Hare Intl Airport.

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Lincolnshire
Racine
Evanston
Lake Geneva
Joliet
Oak Park
Oak Brook
Schaumburg
Northbrook
Elgin
Rosemont

Why use momondo?

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

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

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

Yes. momondo allows you to filter the results for flights to Chicago to just show those with flexible booking policies.

How can momondo help me find flights to Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Chicago.

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

Of course. momondo tracks the price of Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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