What are the cheapest airlines flying from Chicago to London round-trip?

Our cheapest airline available from Chicago to London is Scandinavian Airlines. Our recent data shows that you can find tickets from as low as £470 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and Icelandair, starting at £471 and £473 round-trip. These flights start at 21% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Chicago to London one-way?

£171 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Icelandair and JetBlue, with prices starting from £172 and £199, respectively.

What is the cheapest day to fly from Chicago to London?

Travellers seeking maximum savings on their Chicago to London flight should consider departing on Saturday evenings when fares are most often at their lowest. Wednesday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Chicago to London?

The most popular route from Chicago to London is Chicago O'Hare Intl - London Heathrow. You may also consider Chicago O'Hare Intl - London Gatwick or Chicago O'Hare Intl - London City.

What are the cheapest flights from Chicago to London?

On average you can expect to pay £3,256 for a flight from Chicago to London. The cheapest flight overall is £294 while the most popular route, (Chicago O'Hare Intl - London Heathrow) is currently priced at £375.

What are the most reliable airlines from Chicago to London?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to London on time: Lufthansa (82%), Air Canada (77%), Austrian Airlines (77%).

What are the most popular airlines that fly from Chicago to London?

Consider American Airlines, Finnair or British Airways when booking your flight. These represent the most popular airlines when flying from Chicago to London.

What is the cheapest day to fly round-trip from Chicago to London?

Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 21% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Chicago to London?

To save on the cost of your flight from Chicago to London, book at least 60 days before your planned departure. Booking around this time can save you about 8% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £573 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £647.

What is the cheapest month to fly from Chicago to London?

Our data shows that February tends to be the cheapest month to fly to London from Chicago. Users have commonly found prices around £596 for the month, but tickets can be as low as £349. Due to multiple factors, prepare for potentially higher prices in June.

Can I find deals for flights from Chicago to London that include hotel bookings?

Yes. In addition to deals on Chicago to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Chicago to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to London.

Can I find deals for business class flights from Chicago to London?

Yes. Cheapflights offers flight deals from Chicago to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£171+ Flights from Chicago to London

The best prices from Chicago to London are usually found in February or November, booked 84 days in advance, depart on a Saturday or Monday and return on a Wednesday

Cheap flight deals from Chicago to London

Round-trip from	£469
One-way from	£171
Popular in	June
Cheapest in	February
Average price	£621

12/1-21/1
4 total stops
30h 35m total
Chicago to London

Search Deals

WestJet
17/3
1 total stop
15h 05m total
Chicago to London

Search Deals

High demand for flights, 19% potential price rise

Search Deals

Best time to find cheap flights, 3% potential price drop

Search Deals

Average for round-trip flights in December 2024

Search Deals

Find flight deals from Chicago to London

Cheapest flights from Chicago to London
Explore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Mon 30/1221:40ORD - LHR

1 stop30h 00mUnited Airlines

Fri 10/114:30LHR - ORD

1 stop28h 41mUnited Airlines

Deal found 18/12£519

Mon 30/1219:10ORD - LHR

1 stop14h 50mScandinavian Airlines

Fri 10/115:35LHR - ORD

2 stops30h 15mScandinavian Airlines

Deal found 18/12£535

Sun 29/1210:30ORD - LHR

1 stop14h 20mVirgin Atlantic

Sun 19/106:30LHR - ORD

1 stop14h 00mVirgin Atlantic

Deal found 17/12£552

Sat 28/1220:35ORD - LHR

1 stop33h 30mBritish Airways

Fri 10/118:00LHR - ORD

1 stop22h 47mBritish Airways

Deal found 18/12£562

Sun 29/1218:25ORD - LHR

Nonstop7h 50mAmerican Airlines

Fri 10/108:40LHR - ORD

1 stop14h 12mAmerican Airlines

Deal found 18/12£663

Wed 18/1208:51ORD - LHR

1 stop15h 04mJetBlue

Thu 16/107:25LHR - ORD

1 stop14h 19mJetBlue

Deal found 17/12£682

Tue 24/1220:25ORD - LHR

1 stop28h 05mMultiple Airlines

Wed 29/106:00LHR - ORD

1 stop14h 05mMultiple Airlines

Deal found 18/12£696

Wed 25/1218:25ORD - LHR

Nonstop7h 50mFinnair

Thu 1/509:30LHR - ORD

1 stop14h 20mFinnair

Deal found 18/12£700

Fri 27/1220:20ORD - LGW

1 stop13h 25mTAP AIR PORTUGAL

Tue 29/416:25LGW - ORD

1 stop29h 45mTAP AIR PORTUGAL

Deal found 17/12£706

Tue 17/1219:05ORD - LGW

1 stop16h 45mSWISS

Tue 24/1218:45LGW - ORD

1 stop27h 30mSWISS

Deal found 16/12£715

Tue 24/1216:55ORD - LHR

1 stop10h 25mIberia

Tue 28/108:10LHR - ORD

2 stops17h 54mIberia

Deal found 17/12£717

Wed 25/1212:30ORD - LHR

1 stop12h 20mDelta

Tue 29/409:00LHR - ORD

1 stop12h 00mDelta

Deal found 18/12£719

Best flights from Chicago to London
Discover carefully curated flight deals from Chicago to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 December 2024.

Sun 12/118:30ORD - LTN

2 stops16h 15mMultiple Airlines

Tue 21/109:00LTN - ORD

2 stops14h 20mMultiple Airlines

Deal found 17/12£469

Fri 25/419:15ORD - LHR

1 stop12h 20mScandinavian Airlines

Mon 28/419:30LHR - ORD

1 stop26h 40mScandinavian Airlines

Deal found 18/12£470

Fri 17/120:20ORD - LHR

1 stop16h 35mTAP AIR PORTUGAL

Sun 19/106:00LHR - ORD

1 stop15h 30mTAP AIR PORTUGAL

Deal found 18/12£471

Wed 19/218:30ORD - LGW

1 stop10h 25mIcelandair

Wed 26/211:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 18/12£473

Tue 18/321:30ORD - LGW

1 stop19h 00mTurkish Airlines

Mon 31/310:55LGW - ORD

1 stop28h 55mTurkish Airlines

Deal found 17/12£482

Mon 31/316:55ORD - LHR

Nonstop7h 55mFinnair

Wed 23/409:30LHR - ORD

1 stop14h 20mFinnair

Deal found 18/12£498

Tue 14/109:10ORD - LHR

1 stop14h 45mJetBlue

Fri 17/107:25LHR - ORD

1 stop14h 19mJetBlue

Deal found 18/12£501

Tue 22/421:15ORD - LHR

Nonstop7h 40mIberia

Tue 29/414:25LHR - ORD

Nonstop8h 35mIberia

Deal found 18/12£508

Wed 12/315:35ORD - LHR

1 stop10h 35mUnited Airlines

Mon 17/313:45LHR - ORD

1 stop32h 30mUnited Airlines

Deal found 17/12£512

Tue 14/118:35ORD - LHR

Nonstop7h 40mBritish Airways

Tue 21/111:55LHR - ORD

Nonstop8h 50mBritish Airways

Deal found 18/12£516

Wed 8/114:05ORD - LHR

1 stop10h 25mAir Canada

Thu 16/106:50LHR - ORD

2 stops13h 55mAir Canada

Deal found 18/12£522

Sun 12/114:08MDW - LHR

1 stop10h 42mVirgin Atlantic

Tue 21/112:20LHR - MDW

1 stop11h 54mVirgin Atlantic

Deal found 18/12£523

Direct flights from Chicago to London
Explore direct flight options from Chicago to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 December 2024.

Wed 12/322:45ORD - LHR

Nonstop7h 45mBritish Airways

Tue 18/315:45LHR - ORD

Nonstop9h 00mBritish Airways

Deal found 17/12£496

Tue 1/416:55ORD - LHR

Nonstop7h 55mIberia

Wed 30/414:25LHR - ORD

Nonstop8h 35mIberia

Deal found 17/12£507

Wed 26/221:56ORD - LHR

Nonstop7h 44mFinnair

Fri 14/310:15LHR - ORD

Nonstop8h 50mFinnair

Deal found 17/12£518

Wed 12/318:50ORD - LHR

Nonstop8h 05mUnited Airlines

Tue 18/310:25LHR - ORD

Nonstop9h 25mUnited Airlines

Deal found 17/12£526

Fri 7/322:05ORD - LHR

Nonstop7h 35mAmerican Airlines

Mon 10/315:45LHR - ORD

Nonstop9h 00mAmerican Airlines

Deal found 18/12£626

Sun 12/121:10ORD - LHR

Nonstop8h 05mAustrian Airlines

Tue 21/110:25LHR - ORD

Nonstop9h 25mAustrian Airlines

Deal found 18/12£664

Fri 14/319:40ORD - LHR

Nonstop7h 35mMultiple Airlines

Tue 18/311:00LHR - ORD

Nonstop8h 55mMultiple Airlines

Deal found 18/12£690

Wed 15/118:35ORD - LHR

Nonstop7h 40mAlaska Airlines

Mon 20/111:55LHR - ORD

Nonstop8h 50mAlaska Airlines

Deal found 17/12£723

Last-minute flights from Chicago to London
Discover last-minute flight deals from Chicago to London. Data last updated 19 December 2024 and is based on user searches.

Mon 23/1216:50ORD - LGW

1 stop32h 40mBritish Airways

Wed 29/112:30LGW - ORD

1 stop32h 29mBritish Airways

Deal found 17/12£743

Tue 24/1208:45ORD - LHR

1 stop15h 10mJetBlue

Thu 30/108:25LHR - ORD

1 stop15h 28mJetBlue

Deal found 17/12£706

Tue 24/1206:00ORD - LHR

1 stop19h 30mUnited Airlines

Fri 17/106:30LHR - ORD

2 stops16h 11mUnited Airlines

Deal found 18/12£707

Tue 24/1216:55ORD - LHR

1 stop10h 25mIberia

Tue 28/108:10LHR - ORD

2 stops17h 54mIberia

Deal found 17/12£717

Tue 24/1207:05ORD - LGW

1 stop18h 25mMultiple Airlines

Thu 9/112:30LGW - ORD

1 stop26h 35mMultiple Airlines

Deal found 17/12£733

Wed 25/1218:25ORD - LHR

Nonstop7h 50mFinnair

Thu 1/509:30LHR - ORD

1 stop14h 20mFinnair

Deal found 18/12£700

Wed 25/1214:05ORD - LHR

1 stop10h 25mMultiple Airlines

Fri 2/506:00LHR - ORD

1 stop12h 10mMultiple Airlines

Deal found 18/12£714

Wed 25/1212:30ORD - LHR

1 stop12h 20mDelta

Tue 29/409:00LHR - ORD

1 stop12h 00mDelta

Deal found 18/12£719

Fri 27/1220:20ORD - LGW

1 stop13h 25mTAP AIR PORTUGAL

Tue 29/416:25LGW - ORD

1 stop29h 45mTAP AIR PORTUGAL

Deal found 17/12£706

Fri 27/1220:20ORD - LHR

1 stop15h 10mTAP AIR PORTUGAL

Tue 29/419:50LHR - ORD

1 stop26h 20mTAP AIR PORTUGAL

Deal found 18/12£729

Sat 28/1220:55ORD - LHR

1 stop28h 00mBritish Airways

Fri 10/118:00LHR - ORD

1 stop22h 47mBritish Airways

Deal found 17/12£584

Sun 29/1209:30MDW - LHR

1 stop15h 20mDelta

Fri 10/106:30LHR - MDW

2 stops15h 51mDelta

Deal found 18/12£722

One-way flights from Chicago to London
Search for one-way flight options from Chicago to London. Find affordable one-way fares based on user searches. Data last updated 19 December 2024.

Mon 17/316:45ORD - LHR

1 stop15h 05mWestJet

Deal found 18/12£171

Mon 20/118:30ORD - LGW

1 stop10h 25mIcelandair

Deal found 17/12£172

Thu 23/107:25MDW - LTN

3 stops56h 45mMultiple Airlines

Deal found 18/12£175

Sun 23/218:30ORD - LHR

1 stop10h 20mIcelandair

Deal found 18/12£177

Thu 23/107:25MDW - LHR

2 stops25h 00mMultiple Airlines

Deal found 18/12£177

Thu 16/107:25MDW - LGW

2 stops42h 05mMultiple Airlines

Deal found 17/12£181

Tue 4/214:02ORD - LHR

2 stops18h 23mMultiple Airlines

Deal found 18/12£182

Tue 14/114:02ORD - LGW

2 stops22h 33mMultiple Airlines

Deal found 18/12£186

Wed 15/107:00ORD - LTN

3 stops57h 10mMultiple Airlines

Deal found 18/12£188

Wed 15/107:00ORD - STN

3 stops58h 35mMultiple Airlines

Deal found 18/12£198

Tue 14/109:05ORD - LHR

1 stop14h 50mJetBlue

Deal found 18/12£199

Wed 22/107:00ORD - LCY

3 stops32h 40mMultiple Airlines

Deal found 18/12£240

Find flights from Chicago to London within your budget

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 12/1

18:30-16:45

2 stops16h 15m

London Luton

Tue 21/1

09:00-17:20

2 stops14h 20m

£469

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 21/1

07:00-06:00

1 stop17h 00m

London Gatwick

Wed 12/2

13:00-21:33

1 stop14h 33m

£469

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 12/1

18:30-10:50

1 stop10h 20m

London Heathrow

Tue 10/6

13:05-18:15

1 stop11h 10m

£470

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 17/1

20:20-18:55

1 stop16h 35m

London Heathrow

Sun 19/1

06:00-15:30

1 stop15h 30m

£471

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Fri 31/1

20:20-15:45

1 stop13h 25m

London Gatwick

Fri 7/2

21:30-15:30

2 stops48h 00m

£471

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Thu 20/2

19:40-16:00

1 stop14h 20m

London Heathrow

Mon 24/2

10:20-17:50

1 stop13h 30m

£472

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 19/2

18:30-10:55

1 stop10h 25m

London Gatwick

Wed 26/2

11:55-17:20

1 stop11h 25m

£473

ChicagoLondon

ORD - STN

ORDSTN

Chicago O'Hare Intl

Tue 11/3

17:45-11:45

1 stop13h 00m

London Stansted

Thu 20/3

06:00-15:30

1 stop14h 30m

£475

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Thu 16/1

16:08-10:00

2 stops35h 52m

London Gatwick

Thu 23/1

14:00-14:42

1 stop30h 42m

£480

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 18/3

21:30-21:30

1 stop19h 00m

London Gatwick

Mon 31/3

14:00-09:50

1 stop25h 50m

£482

Flights are sorted by cheapest return flights first.

Deals found on 18/12

Showing 1-10 of 60 results

...

Best time to book a flight from Chicago to London

Have a flexible travel schedule? Discover the best time to fly to London from 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 from Chicago to London

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

How far ahead should I book a flight from Chicago to London?

The best time to book flights from Chicago to London is 84 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.

What is the cheapest month to book a flight from Chicago to London?

Currently, January is the cheapest month in which you can book a flight from Chicago to London (average of £112). Flying from Chicago to London in July is currently the most expensive (average of £160). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHI to LON?

Unlike at midday, when flights are generally more expensive, you can save up to 37% on flights from Chicago to London by exploring options for tickets in the evening.

Weekly flight availability from Chicago to London

The most flights from CHI to LON are scheduled on a Monday (40 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (32 on average).

Rainfall in London by month

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

If weather is an important factor for your trip to London, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Read reviews from past customers who have flown British Airways, Scandinavian Airlines and TAP AIR PORTUGAL from Chicago to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

8,604 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines

7.9

Good

283 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,349 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.7

Good

1,285 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

LOT

7.6

Good

1,129 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from Chicago to London round-trip?
Our cheapest airline available from Chicago to London is Scandinavian Airlines. Our recent data shows that you can find tickets from as low as £470 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and Icelandair, starting at £471 and £473 round-trip. These flights start at 21% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Chicago to London one-way?
£171 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Icelandair and JetBlue, with prices starting from £172 and £199, respectively.
What are the most popular routes from Chicago to London?
The most popular route from Chicago to London is Chicago O'Hare Intl - London Heathrow. You may also consider Chicago O'Hare Intl - London Gatwick or Chicago O'Hare Intl - London City.
What are the most reliable airlines from Chicago to London?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Chicago to London on time: Lufthansa (82%), Air Canada (77%), Austrian Airlines (77%).
What are the cheapest flights from Chicago to London?
On average you can expect to pay £3,256 for a flight from Chicago to London. The cheapest flight overall is £294 while the most popular route, (Chicago O'Hare Intl - London Heathrow) is currently priced at £375.
Can I find deals for flights from Chicago to London that include hotel bookings?
Yes. In addition to deals on Chicago to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Chicago to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to London.
Can I find deals for business class flights from Chicago to London?
Yes. Cheapflights offers flight deals from Chicago to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Chicago to London?
Currently, January is the cheapest month in which you can book a flight from Chicago to London (average of £112). Flying from Chicago to London in July is currently the most expensive (average of £160). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 8 airlines flying from Chicago to London

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£321	Average£854	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Scandinavian Airlines	Cheapest£343	Average£403	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
American Airlines	Cheapest£405	Average£792	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Finnair	Cheapest£454	Average£731	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Aer Lingus	Cheapest£469	Average£678	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
British Airways	Cheapest£492	Average£679	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Iberia	Cheapest£519	Average£686	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
United Airlines	Cheapest£533	Average£696	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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How does Cheapflights help users find flights from Chicago to London?

Cheapflights makes it easy to find Chicago to London flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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 London from Chicago.

Can Cheapflights find flights from Chicago to London with no change fees?

Yes! Cheapflights helps users easily find flights from Chicago to London with no change fees.

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

Yes! Start tracking prices for Chicago to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Chicago to London from £171

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.

The best prices from Chicago to London are usually found in February or November, booked 84 days in advance, depart on a Saturday or Monday and return on a Wednesday

Cheap flight deals from Chicago to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Chicago to London

Cheapest flights from Chicago to LondonExplore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Explore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Find flights from Chicago to London within your budget

Best time to book a flight from Chicago to London

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

Travel insights for flights from Chicago to London

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

How far ahead should I book a flight from Chicago to London?

Use this chart to determine the optimal time to book a return flight from Chicago to London. Price data was last updated on 13 December 2024.

What is the cheapest month to book a flight from Chicago to London?

What is the cheapest time of day to fly from CHI to LON?

Find hourly flight availability from Chicago to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 December 2024.

Weekly flight availability from Chicago to London

Explore weekly flight availability from Chicago to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 19 December 2024.

Rainfall in London by month

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

Temperature in London by month

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

Reviews of airlines servicing London

Read reviews from past customers who have flown British Airways, Scandinavian Airlines and TAP AIR PORTUGAL from Chicago to London. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Chicago to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Chicago to London round-trip?

What are the cheapest airlines to fly from Chicago to London one-way?

What are the most popular routes from Chicago to London?

What are the most reliable airlines from Chicago to London?

What are the cheapest flights from Chicago to London?

Can I find deals for flights from Chicago to London that include hotel bookings?

How can I find direct flights from Chicago to London?

Can I find deals for business class flights from Chicago to London?

What is the cheapest month to book a flight from Chicago to London?

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.

Alternative routes for Chicago to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from Chicago to London

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Cheapest flights from Chicago to London
Explore the most affordable flight options available from Chicago to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.