Find flights
Deals
Airlines

£405+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
— CHI
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals to Chicago

Enter your travel dates to find the best prices.

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 7 November 2025.

Mon 24/1106:40LHR - ORD
1 stop16h 05mScandinavian Airlines
Mon 8/1219:20ORD - LHR
1 stop16h 20mScandinavian Airlines
Deal found 6/11£409
Thu 4/1206:40LHR - ORD
2 stops16h 05mScandinavian Airlines
Wed 14/119:20ORD - LHR
2 stops17h 30mScandinavian Airlines
Deal found 6/11£410
Thu 20/1106:40LHR - ORD
1 stop16h 05mScandinavian Airlines
Sun 23/1119:20ORD - LHR
1 stop14h 40mScandinavian Airlines
Deal found 5/11£412
Wed 3/1206:00LHR - ORD
1 stop15h 00mTAP AIR PORTUGAL
Sun 7/1220:25ORD - LHR
1 stop19h 10mTAP AIR PORTUGAL
Deal found 6/11£412
Mon 24/1106:30STN - ORD
2 stops16h 50mMultiple Airlines
Mon 1/1218:30ORD - STN
2 stops20h 50mMultiple Airlines
Deal found 7/11£412
Fri 5/1214:00LGW - ORD
2 stops27h 08mMultiple Airlines
Mon 8/1208:36ORD - LGW
1 stop15h 24mMultiple Airlines
Deal found 6/11£413
Fri 21/1106:40LHR - ORD
1 stop16h 05mScandinavian Airlines
Sat 29/1119:20ORD - LHR
1 stop20h 20mScandinavian Airlines
Deal found 5/11£415
Wed 26/1110:20LHR - ORD
1 stop12h 25mScandinavian Airlines
Sun 30/1119:20ORD - LHR
1 stop17h 10mScandinavian Airlines
Deal found 6/11£416
Fri 21/1105:50LTN - ORD
2 stops17h 30mMultiple Airlines
Fri 28/1118:30ORD - LTN
2 stops19h 40mMultiple Airlines
Deal found 6/11£416
Wed 3/1206:00LHR - ORD
1 stop15h 00mTAP AIR PORTUGAL
Wed 14/119:10ORD - LHR
1 stop14h 20mTAP AIR PORTUGAL
Deal found 6/11£417
Fri 5/1210:20LHR - ORD
1 stop12h 25mScandinavian Airlines
Thu 5/219:20ORD - LHR
1 stop14h 40mScandinavian Airlines
Deal found 5/11£418
Fri 21/1106:40LHR - ORD
1 stop16h 05mScandinavian Airlines
Mon 24/1119:20ORD - LHR
2 stops15h 05mScandinavian Airlines
Deal found 5/11£419

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 7 November 2025.

Return from

£409

One-way from

£405

Popular in

July

Cheapest in

February

Average price

£492

Good round-trip deal

£582 or less

Good one-way deal

£460 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 24/11-8/12
  • 2 total stops
  • 33h 15m total
  • London to Chicago
Search Deals
12/11
  • 12/11
  • 3 total stops
  • 34h 56m total
  • London to Chicago
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£82 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for return flights in November 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

Cheapflights Fare Finder

 
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 7 November 2025.
Use the filters below to find and compare flights to Chicago that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Mon 2/3

07:05-16:45

2 stops15h 40m

Chicago O'Hare Intl

Sun 8/3

20:20-18:50

2 stops17h 30m

£410

LondonChicago

STN - ORD

STNORD

London Stansted

Mon 24/11

06:30-17:20

2 stops16h 50m

Chicago O'Hare Intl

Mon 1/12

18:30-21:20

2 stops20h 50m

£412

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 7/2

17:30-16:55

2 stops29h 25m

Chicago O'Hare Intl

Sat 14/2

19:20-19:55

2 stops18h 35m

£412

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 1/5

18:45-16:15

1 stop27h 30m

Chicago O'Hare Intl

Sun 10/5

18:00-12:45

1 stop12h 45m

£415

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 23/11

06:40-16:45

2 stops16h 05m

Chicago O'Hare Intl

Sun 30/11

19:20-18:30

1 stop17h 10m

£419

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 20/3

07:05-17:45

2 stops15h 40m

Chicago O'Hare Intl

Sun 22/3

20:20-17:40

1 stop16h 20m

£421

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 20/11

21:05-16:45

2 stops25h 40m

Chicago O'Hare Intl

Mon 8/12

19:20-16:25

2 stops15h 05m

£425

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Wed 26/11

07:05-16:45

2 stops15h 40m

Chicago O'Hare Intl

Mon 1/12

19:20-18:50

2 stops17h 30m

£425

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 6/12

06:40-16:45

1 stop16h 05m

Chicago O'Hare Intl

Sun 7/12

19:20-16:00

1 stop14h 40m

£426

LondonChicago

LTN - ORD

LTNORD

London Luton

Fri 5/12

05:50-17:55

1 stop18h 05m

Chicago O'Hare Intl

Fri 12/12

15:50-15:25

1 stop17h 35m

£427

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 60 results
1
2
3
...
6

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.

Cheapflights Insights

Everything you need to know about your flight to Chicago

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 31 October 2025.

The best time to book flights to Chicago is 88 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 12 hours 32 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?

Use this chart to determine the cheapest time to fly return from London to Chicago. Price data was last updated on 16 December 2024.

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

Weekly flight availability to Chicago

The most flights from London to Chicago are scheduled on a Thursday (42 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (29 on average).

What are the most popular airlines that fly to Chicago?

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

British Airways
British Airways
From £364
Aer Lingus
Aer Lingus
From £350
Lufthansa
Lufthansa
From £402
Icelandair
Icelandair
From £322

What are the cheapest airlines that fly to Chicago?

The cheapest airlines flying from London to Chicago are Icelandair, Virgin Atlantic and Scandinavian Airlines.

Rainfall in Chicago by month

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

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

Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated 7 November 2025.
Read through reviews of airlines serving the United States, such as Finnair, Aer Lingus, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,335 reviews
Check prices

Comfort

7.4

Crew

8.1

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Comfort

7.4

Crew

8.1

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Aer Lingus
7.2
Good
1,365 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Comfort

7.4

Crew

8.1

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Icelandair
7.1
Good
572 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Comfort

7.4

Crew

8.1

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Lufthansa
6.8
Okay
7,558 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Comfort

7.4

Crew

8.1

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,500 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Comfort

7.4

Crew

8.1

Overall

7.6

Boarding

7.6

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

FAQs about flying to Chicago

  • 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 £24, while return flights cost around £71.

  • How much is a return flight to Chicago?

    A return flight to Chicago will typically cost around £91, however they can be found for as little as £71.

  • 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

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.

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?

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.