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Flights to Chicago O'Hare Intl

£225 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 15/10. 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 O'Hare Intl Airport

Cheap return flights

Icelandair Logo
15:40 - 21:15LGW-ORD
11h 35m1 stop
Icelandair Logo
22:15 - 14:40ORD-LGW
10h 25m1 stop
£320Icelandair
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週五, 3 10月 - 週三, 8 10月
Icelandair Logo
15:40 - 18:15LGW-ORD
32h 35m1 stop
Icelandair Logo
19:25 - 14:40ORD-LGW
13h 15m1 stop
£326Icelandair
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週四, 2 10月 - 週二, 7 10月
Icelandair Logo
15:40 - 21:15LGW-ORD
11h 35m1 stop
Icelandair Logo
22:15 - 14:40ORD-LGW
10h 25m1 stop
£327Icelandair
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週五, 3 10月 - 週日, 5 10月
Finnair Logo
09:15 - 11:50LHR-ORD
8h 35mdirect
Finnair Logo
22:35 - 12:15ORD-LHR
7h 40mdirect
£330Finnair
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週三, 3 9月 - 週六, 13 9月
Aer Lingus Logo
13:25 - 19:00LHR-ORD
11h 35m1 stop
Aer Lingus Logo
21:15 - 13:25ORD-LHR
10h 10m1 stop
£358Aer Lingus
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週六, 20 9月 - 週六, 27 9月
Aer Lingus Logo
07:40 - 14:00LHR-ORD
12h 20m1 stop
Aer Lingus Logo
15:45 - 08:00ORD-LHR
10h 15m1 stop
£359Aer Lingus
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週六, 6 9月 - 週日, 21 9月
Lufthansa Logo
08:45 - 19:55LCY-ORD
17h 10m1 stop
Lufthansa Logo
22:30 - 18:35ORD-LCY
14h 05m1 stop
£446Lufthansa
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週四, 18 9月 - 週日, 21 9月
British Airways Logo
06:45 - 15:45LCY-ORD
15h 00m1 stop
British Airways Logo
22:15 - 21:40ORD-LCY
17h 25m1 stop
£454British Airways
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週四, 4 9月 - 週四, 11 9月
Lufthansa Logo
09:50 - 21:05LCY-ORD
16h 15m1 stop
Lufthansa Logo
22:35 - 16:40ORD-LCY
12h 05m1 stop
£470Lufthansa
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週三, 29 10月 - 週四, 6 11月
British Airways Logo
06:00 - 11:50NCL-ORD
11h 50m1 stop
British Airways Logo
20:40 - 16:40ORD-NCL
14h 00m1 stop
£491British Airways
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週三, 8 10月 - 週三, 15 10月

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 15 8月 2025.
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

週五 3/10

15:40-21:15

1 stop11h 35m

Chicago O'Hare Intl

週三 8/10

22:15-14:40

1 stop10h 25m

£320

LondonChicago

LGW - ORD

LGWORD

London Gatwick

週四 2/10

15:40-18:15

1 stop32h 35m

Chicago O'Hare Intl

週二 7/10

19:25-14:40

1 stop13h 15m

£326

LondonChicago

LGW - ORD

LGWORD

London Gatwick

週五 3/10

15:40-21:15

1 stop11h 35m

Chicago O'Hare Intl

週日 5/10

22:15-14:40

1 stop10h 25m

£327

LondonChicago

LHR - ORD

LHRORD

London Heathrow

週三 3/9

09:15-11:50

Nonstop8h 35m

Chicago O'Hare Intl

週六 13/9

22:35-12:15

Nonstop7h 40m

£330

LondonChicago

LHR - ORD

LHRORD

London Heathrow

週六 20/9

13:25-19:00

1 stop11h 35m

Chicago O'Hare Intl

週六 27/9

21:15-13:25

1 stop10h 10m

£358

LondonChicago

LHR - ORD

LHRORD

London Heathrow

週六 6/9

07:40-14:00

1 stop12h 20m

Chicago O'Hare Intl

週日 21/9

15:45-08:00

1 stop10h 15m

£359

LondonChicago

LCY - ORD

LCYORD

London City

週四 18/9

08:45-19:55

1 stop17h 10m

Chicago O'Hare Intl

週日 21/9

22:30-18:35

1 stop14h 05m

£446

LondonChicago

LCY - ORD

LCYORD

London City

週四 4/9

06:45-15:45

1 stop15h 00m

Chicago O'Hare Intl

週四 11/9

22:15-21:40

1 stop17h 25m

£454

LondonChicago

LCY - ORD

LCYORD

London City

週三 29/10

09:50-21:05

1 stop16h 15m

Chicago O'Hare Intl

週四 6/11

22:35-16:40

1 stop12h 05m

£470

Newcastle upon TyneChicago

NCL - ORD

NCLORD

Newcastle upon Tyne

週三 8/10

06:00-11:50

1 stop11h 50m

Chicago O'Hare Intl

週三 15/10

20:40-16:40

1 stop14h 00m

£491

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 £596. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Chicago O'Hare Intl Airport on Sunday is £654.

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 February. Flight prices, which tend to average around £426, 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 O'Hare Intl Airport from United Kingdom during September instead. Flights to Chicago O'Hare Intl Airport in September, while not as cheap as those in February, still average around £485.

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 in the evening when flights can be purchased for as low as £561. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the afternoon when prices are around £660.

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 £541 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 £515 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 AIRPORTFebruary19% cheaperFlying from London Heathrow Airport to Chicago O'Hare Intl Airport costs on average just £442 in February
MOST EXPENSIVE MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM LONDON HEATHROW AIRPORTJuly27% more expensiveIt costs about £689 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 AIRPORTJuly306% 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

£225

Best Round-Trip Price

£320

Fastest flight time

22h 35m

Popular in

July
The best one-way flight price to Chicago from United Kingdom in the last 72 hours is £225 (London Gatwick 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 £320 (London Gatwick to Chicago O'Hare Intl).
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The fastest flight to Chicago from United Kingdom takes 22h 35m (London Stansted 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 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 February 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 70 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 Sunday 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 Evening 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 £202 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.

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 Lufthansa 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 30 as of August 2025.

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
Racine
Evanston
Northbrook
Schaumburg
Lake Geneva
Lincolnshire
Glenview
Oak Brook
Joliet
Oak Park
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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週三 20/8
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