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Flights to Chicago O'Hare Intl

£260 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 4/2. 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

Enter your travel dates to find the best prices.
Icelandair Logo
14:20 - 21:40GLA-ORD
13h 20m1 stop
Icelandair Logo
19:25 - 13:25ORD-GLA
12h 00m1 stop
£391Icelandair
Find Deal
Fri, 17 Apr - Fri, 24 Apr
Icelandair Logo
14:20 - 21:40GLA-ORD
13h 20m1 stop
Icelandair Logo
19:25 - 13:25ORD-GLA
12h 00m1 stop
£392Icelandair
Find Deal
Fri, 17 Apr - Fri, 24 Apr
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
£398Icelandair
Find Deal
Thu, 26 Feb - Mon, 2 Mar
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
£399Icelandair
Find Deal
Thu, 26 Feb - Mon, 2 Mar
Scandinavian Airlines Logo
10:20 - 16:45LHR-ORD
12h 25m1 stop
Scandinavian Airlines Logo
19:20 - 16:00ORD-LHR
14h 40m1 stop
£414Scandinavian Airlines
Find Deal
Thu, 25 Dec - Wed, 31 Dec
Scandinavian Airlines Logo
10:20 - 16:45LHR-ORD
12h 25m1 stop
Scandinavian Airlines Logo
19:20 - 16:25ORD-LHR
15h 05m2 stops
£415Scandinavian Airlines
Find Deal
Sat, 6 Dec - Mon, 8 Dec
United Airlines Logo
12:05 - 16:20LHR-ORD
34h 15m1 stop
United Airlines Logo
20:15 - 06:30ORD-LHR
28h 15m1 stop
£420United Airlines
Find Deal
Fri, 6 Feb - Sat, 7 Feb
Aer Lingus Logo
08:20 - 14:00EDI-ORD
11h 40m1 stop
Aer Lingus Logo
21:00 - 14:45ORD-EDI
11h 45m1 stop
£536Aer Lingus
Find Deal
Tue, 9 Dec - Sun, 11 Jan
Aer Lingus Logo
08:20 - 17:55EDI-ORD
15h 35m1 stop
Aer Lingus Logo
21:00 - 19:50ORD-EDI
16h 50m1 stop
£546Aer Lingus
Find Deal
Tue, 9 Dec - Tue, 13 Jan
British Airways Logo
06:25 - 13:50EDI-ORD
13h 25m1 stop
British Airways Logo
19:45 - 12:20ORD-EDI
11h 35m1 stop
£569British Airways
Find Deal
Wed, 25 Feb - Tue, 10 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 14 November 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

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 17/4

14:20-21:40

1 stop13h 20m

Chicago O'Hare Intl

Fri 24/4

19:25-13:25

1 stop12h 00m

£391

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 17/4

14:20-21:40

1 stop13h 20m

Chicago O'Hare Intl

Fri 24/4

19:25-13:25

1 stop12h 00m

£392

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Thu 26/2

12:35-17:20

1 stop10h 45m

Chicago O'Hare Intl

Mon 2/3

18:30-09:55

1 stop9h 25m

£398

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Thu 26/2

12:35-17:20

1 stop10h 45m

Chicago O'Hare Intl

Mon 2/3

18:30-09:55

1 stop9h 25m

£399

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 25/12

10:20-16:45

1 stop12h 25m

Chicago O'Hare Intl

Wed 31/12

19:20-16:00

1 stop14h 40m

£414

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 6/12

10:20-16:45

1 stop12h 25m

Chicago O'Hare Intl

Mon 8/12

19:20-16:25

2 stops15h 05m

£415

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 6/2

12:05-16:20

1 stop34h 15m

Chicago O'Hare Intl

Sat 7/2

20:15-06:30

1 stop28h 15m

£420

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Tue 9/12

08:20-14:00

1 stop11h 40m

Chicago O'Hare Intl

Sun 11/1

21:00-14:45

1 stop11h 45m

£536

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Tue 9/12

08:20-17:55

1 stop15h 35m

Chicago O'Hare Intl

Tue 13/1

21:00-19:50

1 stop16h 50m

£546

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Wed 25/2

06:25-13:50

1 stop13h 25m

Chicago O'Hare Intl

Tue 10/3

19:45-12:20

1 stop11h 35m

£569

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 £625. 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 £684.

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 £444, 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 £455.

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 £578. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the afternoon when prices are around £686.

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 £555 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 £524 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 AIRPORTSeptember21% cheaperFlying from London Heathrow Airport to Chicago O'Hare Intl Airport costs on average just £442 in September
MOST EXPENSIVE MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM LONDON HEATHROW AIRPORTJuly27% more expensiveIt costs about £707 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 AIRPORTJuly434% 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

£295

Best Round-Trip Price

£391

Fastest flight time

8h 35m

Popular in

July
The best one-way flight price to Chicago from United Kingdom in the last 72 hours is £295 (Edinburgh Turnhouse to Chicago O'Hare Intl).
Search Deals
The best round-trip flight price to Chicago from United Kingdom in the last 72 hours is £391 (Glasgow Intl to Chicago O'Hare Intl).
Search Deals
The fastest flight to Chicago from United Kingdom takes 8h 35m (Edinburgh Turnhouse to Chicago O'Hare Intl).
Search Deals
July has the highest demand for flights to Chicago, with a 15% price increase on average.
Search Deals

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 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 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 £235 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 £150/pp from Phoenix, which is 36% 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 Lufthansa happen to be the most popular among our users. In the past year, 55% 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 November 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
Lincolnshire
Lake Geneva
Joliet
Oak Brook
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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