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Flights to Chicago O'Hare Intl

£253 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 22/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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.
Multiple Airlines Logo
15:10 - 18:15EDI  Edinburgh Turnhouse-ORD Chicago O'Hare Intl
33h 05m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
Multiple Airlines Logo
19:25 - 00:35ORD  Chicago O'Hare Intl-EDI Edinburgh Turnhouse
23h 10m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen
£419Multiple Airlines
Thu, 10 Sep - Mon, 21 Sep
Multiple Airlines Logo
15:10 - 18:15EDI  Edinburgh Turnhouse-ORD Chicago O'Hare Intl
33h 05m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl
Multiple Airlines Logo
19:25 - 00:35ORD  Chicago O'Hare Intl-EDI Edinburgh Turnhouse
23h 10m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen
£435Multiple Airlines
Tue, 8 Sep - Mon, 14 Sep
TAP AIR PORTUGAL Logo
16:00 - 15:30LGW  London Gatwick-ORD Chicago O'Hare Intl
29h 30m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
20:10 - 15:45ORD  Chicago O'Hare Intl-LGW London Gatwick
13h 35m1 stop Lisbon Humberto Delgado
£468TAP AIR PORTUGAL
Thu, 19 Nov - Fri, 27 Nov
TAP AIR PORTUGAL Logo
06:00 - 15:30LHR  London Heathrow-ORD Chicago O'Hare Intl
15h 30m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
20:10 - 12:40ORD  Chicago O'Hare Intl-LHR London Heathrow
34h 30m1 stop Lisbon Humberto Delgado
£469TAP AIR PORTUGAL
Fri, 20 Nov - Fri, 4 Dec
Austrian Airlines Logo
12:15 - 18:37LHR  London Heathrow-ORD Chicago O'Hare Intl
12h 22m1 stop Washington, D.C. Dulles Intl
Austrian Airlines Logo
21:30 - 11:55ORD  Chicago O'Hare Intl-LHR London Heathrow
8h 25mdirect
£476Austrian Airlines
Sun, 13 Sep - Sun, 13 Sep
Austrian Airlines Logo
12:15 - 18:37LHR  London Heathrow-ORD Chicago O'Hare Intl
12h 22m1 stop Washington, D.C. Dulles Intl
Austrian Airlines Logo
21:30 - 11:55ORD  Chicago O'Hare Intl-LHR London Heathrow
8h 25mdirect
£477Austrian Airlines
Sun, 13 Sep - Sun, 13 Sep
British Airways Logo
15:40 - 18:45LHR  London Heathrow-ORD Chicago O'Hare Intl
9h 05mdirect
British Airways Logo
21:50 - 11:35ORD  Chicago O'Hare Intl-LHR London Heathrow
7h 45mdirect
£478British Airways
Tue, 1 Dec - Tue, 8 Dec
British Airways Logo
15:40 - 18:45LHR  London Heathrow-ORD Chicago O'Hare Intl
9h 05mdirect
British Airways Logo
21:50 - 11:35ORD  Chicago O'Hare Intl-LHR London Heathrow
7h 45mdirect
£478British Airways
Wed, 2 Dec - Thu, 10 Dec
Icelandair Logo
21:25 - 18:15LHR  London Heathrow-ORD Chicago O'Hare Intl
26h 50m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:30 - 19:30ORD  Chicago O'Hare Intl-LHR London Heathrow
19h 00m1 stop Reykjavik Keflavik Intl
£478Icelandair
Wed, 21 Oct - Sun, 25 Oct
Icelandair Logo
13:05 - 21:25LHR  London Heathrow-ORD Chicago O'Hare Intl
14h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
18:30 - 19:30ORD  Chicago O'Hare Intl-LHR London Heathrow
19h 00m1 stop Reykjavik Keflavik Intl
£480Icelandair
Sun, 30 Aug - Mon, 2 Nov

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 11 August 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

Cheapest return flight

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Thu 10/9

15:10-18:15

2 stops33h 05m

Chicago O'Hare Intl

Mon 21/9

19:25-00:35

2 stops23h 10m

£419

EdinburghChicago

EDI Edinburgh Turnhouse - ORD Chicago O'Hare Intl

EDIORD

Edinburgh Turnhouse

Tue 8/9

15:10-18:15

2 stops33h 05m

Chicago O'Hare Intl

Mon 14/9

19:25-00:35

2 stops23h 10m

£435

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Thu 19/11

16:00-15:30

1 stop29h 30m

Chicago O'Hare Intl

Fri 27/11

20:10-15:45

1 stop13h 35m

£468

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Fri 20/11

06:00-15:30

1 stop15h 30m

Chicago O'Hare Intl

Fri 4/12

20:10-12:40

1 stop34h 30m

£469

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Sun 13/9

12:15-18:37

1 stop12h 22m

Chicago O'Hare Intl

Sun 13/9

21:30-11:55

Nonstop8h 25m

£476

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Sun 13/9

12:15-18:37

1 stop12h 22m

Chicago O'Hare Intl

Sun 13/9

21:30-11:55

Nonstop8h 25m

£477
Fastest return journey

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Tue 1/12

15:40-18:45

Nonstop9h 05m

Chicago O'Hare Intl

Tue 8/12

21:50-11:35

Nonstop7h 45m

£478

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Wed 2/12

15:40-18:45

Nonstop9h 05m

Chicago O'Hare Intl

Thu 10/12

21:50-11:35

Nonstop7h 45m

£478

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Wed 21/10

21:25-18:15

1 stop26h 50m

Chicago O'Hare Intl

Sun 25/10

19:30-19:30

1 stop19h 00m

£478

LondonChicago

LHR London Heathrow - ORD Chicago O'Hare Intl

LHRORD

London Heathrow

Sun 30/8

13:05-21:25

1 stop14h 20m

Chicago O'Hare Intl

Mon 2/11

18:30-19:30

1 stop19h 00m

£480

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 Airport flights?

There are 4 cabin classes available to choose from on United Kingdom to Chicago O'Hare Intl Airport 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 Thursday. Travellers who choose to depart for Chicago O'Hare Intl Airport on a Thursday will often find tickets for as low as £669. 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 £709.

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 £501, 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 January instead. Flights to Chicago O'Hare Intl Airport in January, while not as cheap as those in February, still average around £524.

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 £656. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the morning when prices are around £691.

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

Fly from Edinburgh Turnhouse 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 £631 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 £585 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 AIRPORTFebruary29% cheaperFlying from London Heathrow Airport to Chicago O'Hare Intl Airport costs on average just £453 in February
MOST EXPENSIVE MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM LONDON HEATHROW AIRPORTJuly21% more expensiveIt costs about £770 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 AIRPORTJuly356% 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

£253

Best Round-Trip Price

£419

Fastest flight time

13h 10m

Popular in

August
The best one-way flight price to Chicago from United Kingdom in the last 5 days is £253 (Edinburgh Turnhouse to Chicago O'Hare Intl).
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The best return flight price to Chicago from United Kingdom in the last 5 days is £419 (Edinburgh Turnhouse to Chicago O'Hare Intl).
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The fastest flight to Chicago from United Kingdom takes 13h 10m (London Heathrow to Chicago O'Hare Intl).
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August has the highest demand for flights to Chicago, with a 8% 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 82 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 Thursday. 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 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 £204 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 Icelandair happen to be the most popular among our users. In the past year, 42% 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 19 as of August 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
Schererville
Gurnee
Lincolnshire
Lake Geneva
Racine
Schaumburg
Willowbrook
Evanston
Bolingbrook
Oak Park
Joliet
Northbrook
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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Find better results for your trip to Chicago O'Hare Intl Airport ORD

Popular Flights to Chicago O'Hare Intl Airport

Popular routes according to searches in the past day on momondo
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