What is the cheapest month to fly to Chicago?

Currently, January is the cheapest month in which you can book a flight to Chicago . Flying to Chicago in July will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Can I find cheaper flights to Chicago if I am willing to have stopovers?

Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Chicago on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to Chicago?

Based on reviews from Cheapflights users, Icelandair is rated the highest out of the airlines that fly to Chicago.

What is the cheapest airport to fly to in Chicago?

Chicago O'Hare Intl is currently the cheapest airport to fly to in Chicago. One-way flights to Chicago O'Hare Intl typically cost £19, while return flights cost around £46.

How much is a return flight to Chicago?

A return flight to Chicago will typically cost around £414, however they can be found for as little as £69.

Where does the fastest flight to Chicago depart from?

For those looking to save time traveling to Chicago, London offers the quickest one-way flight (8 hours 35 minutes).

Does Chicago O'Hare Intl have car hire?

Yes. Those touching down at Chicago O'Hare Intl can take advantage of the car hire services offered upon their arrival.

Are there hotels close to Chicago O'Hare Intl?

Yes. Chicago O'Hare Intl has hotels nearby for those requiring accommodations. Hilton Chicago O'Hare Airport is the closest property to Chicago O'Hare Intl (0.0 mi away from Chicago O'Hare Intl).

£334+ Flights to Chicago, Illinois

Flights to Chicago in 2025

Return from	£433
One-way from	£335
Popular in	August
Cheapest in	February
Average price	£517
Good round-trip deal	£555 or less
Good one-way deal	£614 or less

Lufthansa
13/3-27/3
1 total stop
20h 35m total
London to Chicago

Search Deals

4/2
2 total stops
45h 39m total
London to Chicago

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (£66 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for return flights in January 2025

Search Deals

Price to beat on a round-trip flight from London to Chicago.

Search Deals

Price to beat on a one-way flight from London to Chicago.

Search Deals

Find flight deals to Chicago

Cheapest flights to Chicago
Explore the most affordable flight options available to Chicago. Find the lowest fares based on data from user searches, with prices last updated on 21 January 2025.

Thu 13/307:40LHR - ORD

1 stop12h 30mLufthansa

Thu 27/318:50ORD - LHR

Nonstop8h 05mLufthansa

Deal found 21/1£433

Wed 19/219:50LHR - ORD

2 stops28h 00mScandinavian Airlines

Sun 2/319:40ORD - LHR

1 stop16h 00mScandinavian Airlines

Deal found 21/1£433

Mon 23/615:40LGW - ORD

1 stop11h 35mIcelandair

Mon 7/722:15ORD - LGW

1 stop10h 25mIcelandair

Deal found 21/1£436

Wed 19/206:15LHR - ORD

1 stop14h 15mBritish Airways

Wed 26/321:15ORD - LHR

Nonstop7h 45mBritish Airways

Deal found 21/1£436

Thu 20/319:25LHR - ORD

1 stop24h 40mAustrian Airlines

Tue 25/318:50ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 21/1£437

Tue 13/518:45LHR - ORD

1 stop27h 25mTAP AIR PORTUGAL

Sat 17/518:15ORD - LHR

1 stop22h 40mTAP AIR PORTUGAL

Deal found 21/1£438

Thu 6/306:50LTN - ORD

2 stops19h 05mMultiple Airlines

Thu 13/307:20ORD - LTN

3 stops27h 20mMultiple Airlines

Deal found 20/1£438

Wed 5/314:10LHR - ORD

Nonstop8h 50mFinnair

Sun 9/316:27ORD - LHR

1 stop14h 13mFinnair

Deal found 21/1£438

Wed 19/211:55LHR - ORD

Nonstop8h 50mAmerican Airlines

Wed 26/321:15ORD - LHR

Nonstop7h 45mAmerican Airlines

Deal found 21/1£439

Wed 26/206:50LHR - ORD

2 stops13h 55mMultiple Airlines

Wed 26/311:04ORD - LHR

2 stops15h 06mMultiple Airlines

Deal found 21/1£440

Mon 3/218:45LGW - ORD

1 stop27h 30mSWISS

Mon 17/219:05ORD - LGW

1 stop16h 45mSWISS

Deal found 21/1£441

Wed 19/209:25LCY - ORD

1 stop12h 50mSWISS

Wed 26/219:05ORD - LCY

1 stop17h 35mSWISS

Deal found 20/1£441

Best flights to Chicago
Discover carefully curated flight deals to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 January 2025.

Thu 13/307:40LHR - ORD

1 stop12h 30mLufthansa

Thu 27/318:50ORD - LHR

Nonstop8h 05mLufthansa

Deal found 21/1£433

Wed 19/219:50LHR - ORD

2 stops28h 00mScandinavian Airlines

Sun 2/319:40ORD - LHR

1 stop16h 00mScandinavian Airlines

Deal found 21/1£433

Mon 23/615:40LGW - ORD

1 stop11h 35mIcelandair

Mon 7/722:15ORD - LGW

1 stop10h 25mIcelandair

Deal found 21/1£436

Wed 19/206:15LHR - ORD

1 stop14h 15mBritish Airways

Wed 26/321:15ORD - LHR

Nonstop7h 45mBritish Airways

Deal found 21/1£436

Thu 20/319:25LHR - ORD

1 stop24h 40mAustrian Airlines

Tue 25/318:50ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 21/1£437

Tue 13/518:45LHR - ORD

1 stop27h 25mTAP AIR PORTUGAL

Sat 17/518:15ORD - LHR

1 stop22h 40mTAP AIR PORTUGAL

Deal found 21/1£438

Thu 6/306:50LTN - ORD

2 stops19h 05mMultiple Airlines

Thu 13/307:20ORD - LTN

3 stops27h 20mMultiple Airlines

Deal found 20/1£438

Wed 5/314:10LHR - ORD

Nonstop8h 50mFinnair

Sun 9/316:27ORD - LHR

1 stop14h 13mFinnair

Deal found 21/1£438

Wed 19/211:55LHR - ORD

Nonstop8h 50mAmerican Airlines

Wed 26/321:15ORD - LHR

Nonstop7h 45mAmerican Airlines

Deal found 21/1£439

Mon 3/218:45LGW - ORD

1 stop27h 30mSWISS

Mon 17/219:05ORD - LGW

1 stop16h 45mSWISS

Deal found 21/1£441

Wed 19/212:20LHR - MDW

1 stop11h 51mKLM

Wed 26/214:08MDW - LHR

1 stop10h 42mKLM

Deal found 20/1£442

Sun 16/319:40LHR - ORD

1 stop24h 50mIberia

Mon 31/311:42ORD - LHR

2 stops14h 43mIberia

Deal found 21/1£444

Direct flights to Chicago
Explore direct flight options to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 January 2025.

Tue 18/213:35LHR - ORD

Nonstop9h 25mBrussels Airlines

Tue 25/221:10ORD - LHR

Nonstop8h 05mBrussels Airlines

Deal found 21/1£433

Wed 19/213:35LHR - ORD

Nonstop9h 25mLufthansa

Mon 24/217:50ORD - LHR

Nonstop8h 05mLufthansa

Deal found 21/1£435

Wed 19/211:55LHR - ORD

Nonstop8h 50mAmerican Airlines

Wed 26/321:15ORD - LHR

Nonstop7h 45mAmerican Airlines

Deal found 21/1£439

Mon 3/211:00LHR - ORD

Nonstop8h 55mBritish Airways

Mon 3/317:00ORD - LHR

Nonstop7h 50mBritish Airways

Deal found 21/1£442

Wed 5/310:25LHR - ORD

Nonstop9h 25mAustrian Airlines

Tue 11/322:10ORD - LHR

Nonstop8h 05mAustrian Airlines

Deal found 21/1£445

Mon 3/211:00LHR - ORD

Nonstop8h 55mFinnair

Mon 17/221:45ORD - LHR

Nonstop7h 45mFinnair

Deal found 21/1£446

Mon 3/210:25LHR - ORD

Nonstop9h 25mUnited Airlines

Sun 2/321:10ORD - LHR

Nonstop8h 05mUnited Airlines

Deal found 21/1£475

Sat 1/313:35LHR - ORD

Nonstop9h 25mMultiple Airlines

Sat 29/321:20ORD - LHR

Nonstop8h 25mMultiple Airlines

Deal found 21/1£502

Mon 23/611:05LHR - ORD

Nonstop8h 45mIberia

Mon 7/721:15ORD - LHR

Nonstop7h 40mIberia

Deal found 21/1£552

Last-minute flights to Chicago
Discover last-minute flight deals to Chicago. Data last updated 21 January 2025 and is based on user searches.

Mon 27/111:55LHR - ORD

Nonstop8h 50mAmerican Airlines

Mon 3/218:35ORD - LHR

Nonstop7h 40mAmerican Airlines

Deal found 20/1£441

Mon 27/109:50LHR - ORD

1 stop15h 25mAer Lingus

Mon 10/221:00ORD - LHR

1 stop10h 25mAer Lingus

Deal found 20/1£442

Mon 27/118:45LGW - ORD

1 stop27h 30mSWISS

Mon 10/219:05ORD - LGW

1 stop16h 45mSWISS

Deal found 20/1£443

Mon 27/108:40LHR - MDW

2 stops15h 34mDelta

Mon 10/214:08MDW - LHR

1 stop10h 42mDelta

Deal found 20/1£446

Mon 27/115:00LHR - ORD

1 stop25h 54mAir Canada

Mon 3/209:50ORD - LHR

2 stops15h 20mAir Canada

Deal found 20/1£449

Mon 27/112:20LHR - MDW

1 stop11h 54mVirgin Atlantic

Mon 10/214:08MDW - LHR

1 stop10h 42mVirgin Atlantic

Deal found 20/1£449

Mon 27/109:15LCY - ORD

1 stop13h 00mSWISS

Mon 10/219:05ORD - LCY

1 stop11h 45mSWISS

Deal found 20/1£454

Mon 27/111:55LHR - ORD

Nonstop8h 50mFinnair

Mon 10/222:00ORD - LHR

Nonstop7h 40mFinnair

Deal found 20/1£454

Wed 29/111:00LHR - ORD

Nonstop8h 55mBritish Airways

Mon 17/221:45ORD - LHR

Nonstop7h 45mBritish Airways

Deal found 21/1£439

Wed 29/106:30LHR - ORD

2 stops15h 43mDelta

Mon 17/214:35ORD - LHR

1 stop10h 30mDelta

Deal found 21/1£450

Thu 30/108:55LHR - ORD

1 stop13h 20mMultiple Airlines

Tue 4/221:10ORD - LHR

Nonstop8h 05mMultiple Airlines

Deal found 21/1£440

Fri 31/108:40LHR - ORD

1 stop11h 50mVirgin Atlantic

Tue 4/214:35ORD - LHR

1 stop10h 30mVirgin Atlantic

Deal found 21/1£446

One-way flights to Chicago
Search for one-way flight options to Chicago. Find affordable one-way fares based on user searches. Data last updated 21 January 2025.

Tue 4/220:50LHR - ORD

2 stops45h 39mMultiple Airlines

Deal found 21/1£335

Thu 27/313:00LGW - ORD

2 stops23h 44mMultiple Airlines

Deal found 21/1£336

Wed 14/508:15STN - ORD

2 stops16h 00mMultiple Airlines

Deal found 20/1£354

Mon 27/111:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 20/1£355

Wed 19/215:15LHR - MDW

2 stops57h 05mMultiple Airlines

Deal found 20/1£355

Sat 8/306:00LTN - ORD

2 stops17h 50mMultiple Airlines

Deal found 20/1£355

Tue 4/212:10LHR - ORD

1 stop13h 05mAer Lingus

Deal found 21/1£359

Mon 10/212:15LHR - ORD

1 stop11h 05mIcelandair

Deal found 21/1£360

Mon 10/221:00LGW - MDW

3 stops48h 13mMultiple Airlines

Deal found 20/1£364

Wed 2/406:45LCY - ORD

2 stops17h 35mMultiple Airlines

Deal found 20/1£370

Mon 28/406:45LCY - ORD

1 stop13h 15mAer Lingus

Deal found 20/1£379

Mon 28/406:45LCY - MDW

2 stops33h 35mMultiple Airlines

Deal found 20/1£404

Find flights to Chicago within your budget

Fly from

Route

Depart

Return

Price

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 13/3

07:40-15:10

1 stop12h 30m

Chicago O'Hare Intl

Thu 27/3

18:50-07:55

Nonstop8h 05m

£433

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 19/2

19:50-17:50

2 stops28h 00m

Chicago O'Hare Intl

Sun 2/3

19:40-17:40

1 stop16h 00m

£433

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 23/6

15:40-21:15

1 stop11h 35m

Chicago O'Hare Intl

Mon 7/7

22:15-14:40

1 stop10h 25m

£436

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 19/2

06:15-14:30

1 stop14h 15m

Chicago O'Hare Intl

Wed 26/3

21:15-10:00

Nonstop7h 45m

£436

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 20/3

19:25-15:05

1 stop24h 40m

Chicago O'Hare Intl

Tue 25/3

18:50-07:55

Nonstop8h 05m

£437

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Tue 13/5

18:45-16:10

1 stop27h 25m

Chicago O'Hare Intl

Sat 17/5

18:15-22:55

1 stop22h 40m

£438

LondonChicago

LTN - ORD

LTNORD

London Luton

Thu 6/3

06:50-19:55

2 stops19h 05m

Chicago O'Hare Intl

Thu 13/3

07:20-15:40

3 stops27h 20m

£438

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 5/3

14:10-17:00

Nonstop8h 50m

Chicago O'Hare Intl

Sun 9/3

16:27-11:40

1 stop14h 13m

£438

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 19/2

14:10-17:00

Nonstop8h 50m

Chicago O'Hare Intl

Wed 26/3

21:15-10:00

Nonstop7h 45m

£439

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 26/2

06:50-14:45

2 stops13h 55m

Chicago O'Hare Intl

Wed 26/3

11:04-07:10

2 stops15h 06m

£440

Flights are sorted by cheapest return flights first.

Deals found on 21/1

Showing 1-10 of 60 results

...

Best time to book a flight to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights to Chicago

Get recent, data-driven insights about flights to Chicago including ideal travel times, pricing trends, and more.

When is the best time to book a flight to Chicago?

The best time to book flights to Chicago is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

How long is the flight to Chicago?

On average, a flight from London to Chicago takes 14 hours 38 minutes. Flights to Chicago from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Chicago?

Users looking for the lowest fares to Chicago should consider flying on Tuesday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday evenings, when prices are usually at their highest.

Weekly flight availability to Chicago

The most flights from London to Chicago are scheduled on a Monday (36 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 on average).

What are the most popular airlines that fly to Chicago?

The most popular airlines flying from London to Chicago are British Airways, Finnair and Lufthansa.

British Airways

From £537

Finnair

From £595

Lufthansa

From £553

Aer Lingus

From £568

What are the cheapest airlines that fly to Chicago?

The cheapest airlines flying from London to Chicago are Icelandair, Scandinavian Airlines and TAP AIR PORTUGAL.

Rainfall in Chicago by month

In terms of precipitation, rainfall in Chicago ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.

Temperature in Chicago by month

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Reviews of airlines servicing Chicago

To help decide which airline to fly to Chicago, see what other customers have to say about Lufthansa, British Airways and American Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

8,521 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,341 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Transat

7.8

Good

381 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

LOT

7.6

Good

1,117 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,286 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Can I find cheaper flights to Chicago if I am willing to have stopovers?
Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Chicago on Cheapflights that require 1 or 2 stops for potential cost savings.
What is the best airline to fly to Chicago?
Based on reviews from Cheapflights users, Icelandair is rated the highest out of the airlines that fly to Chicago.
What is the cheapest airport to fly to in Chicago?
Chicago O'Hare Intl is currently the cheapest airport to fly to in Chicago. One-way flights to Chicago O'Hare Intl typically cost £19, while return flights cost around £46.
How much is a return flight to Chicago?
A return flight to Chicago will typically cost around £414, however they can be found for as little as £69.
Where does the fastest flight to Chicago depart from?
For those looking to save time traveling to Chicago, London offers the quickest one-way flight (8 hours 35 minutes).
Does Chicago O'Hare Intl have car hire?
Yes. Those touching down at Chicago O'Hare Intl can take advantage of the car hire services offered upon their arrival.
Are there hotels close to Chicago O'Hare Intl?
Yes. Chicago O'Hare Intl has hotels nearby for those requiring accommodations. Hilton Chicago O'Hare Airport is the closest property to Chicago O'Hare Intl (0.0 mi away from Chicago O'Hare Intl).

See more FAQs

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How does Cheapflights help users find flights to Chicago?

Deals for Chicago flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to Chicago?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Chicago.

Can Cheapflights find flights to Chicago with no change fees?

Need flexible booking options for your flight to Chicago ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights to Chicago become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which notifies users when flight prices change. Track prices for your flight to Chicago today and book when you’re ready!

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£334+ Cheap flights to Chicago

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/6. Fares are subject to change and may not be available on all flights or dates of travel.

Flights to Chicago in 2025

Find the latest flights to Chicago in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 21 January 2025.

Return from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals to Chicago

Cheapest flights to ChicagoExplore the most affordable flight options available to Chicago. Find the lowest fares based on data from user searches, with prices last updated on 21 January 2025.

Explore the most affordable flight options available to Chicago. Find the lowest fares based on data from user searches, with prices last updated on 21 January 2025.

Find flights to Chicago within your budget

Locate flights to Chicago that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 21 January 2025.

Best time to book a flight to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago with our price prediction graph.

Travel insights for flights to Chicago

Get recent, data-driven insights about flights to Chicago including ideal travel times, pricing trends, and more.

When is the best time to book a flight to Chicago?

Use this chart to determine the optimal time to book a return flight from London to Chicago. Price data was last updated on 17 January 2025.

How long is the flight to Chicago?

When is the cheapest time to fly to Chicago?

Use this chart to determine the cheapest time to fly return from London to Chicago. Price data was last updated on 28 April 2024.

Weekly flight availability to Chicago

What are the most popular airlines that fly to Chicago?

What are the cheapest airlines that fly to Chicago?

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

Reviews of airlines servicing Chicago

Can I find cheaper flights to Chicago if I am willing to have stopovers?

What is the best airline to fly to Chicago?

What is the cheapest airport to fly to in Chicago?

How much is a return flight to Chicago?

Where does the fastest flight to Chicago depart from?

Does Chicago O'Hare Intl have car hire?

Are there hotels close to Chicago O'Hare Intl?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Find the best flight deals to Chicago

Some of the lowest fares we’ve come across for flights to Chicago.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Chicago?

Why should you use Cheapflights to find cheap flight tickets to Chicago?

Can Cheapflights find flights to Chicago with no change fees?

Can Cheapflights notify me if prices for flights to Chicago become cheaper?

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Cheapest flights to Chicago
Explore the most affordable flight options available to Chicago. Find the lowest fares based on data from user searches, with prices last updated on 21 January 2025.