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Cheap flights from Chicago (CHI) to Heathrow (LHR) from $219

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
CHI — LHR
May 13 — May 201
From?
To?
Mon 5/13
Mon 5/20
1 adult, Economy
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The best prices from Chicago to London Heathrow are usually found in February or October, booked 43 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Chicago to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 8, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$643

One-way from

$321
High demand for flights, 37% potential price rise
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Best time to find cheap flights, 23% potential price drop
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From Chicago (CHI) to London Heathrow
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One-way flight from Chicago (CHI) to London Heathrow
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What is the cheapest day to fly round-trip from Chicago to London Heathrow Airport?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 9%.

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

Find a great deal and save up to 3% by booking at least 11 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Chicago to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at $646.

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

Flights from Chicago to London Heathrow Airport lean towards being more expensive in June. Prices are generally better when you fly from Chicago to London Heathrow Airport in February, with the cheapest ticket starting at $435.

When is the cheapest time to fly from Chicago to London Heathrow Airport (CHI - LHR)?

When flying from Chicago to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 14% versus a flight at noon.

Cheap TAP AIR PORTUGAL flights from Chicago to Heathrow

Explore cheap flight options specifically provided by TAP AIR PORTUGAL for the route between Chicago and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Check out some of the cheapest TAP AIR PORTUGAL flights we've come across from Chicago to London. Make sure to double check the flight details before booking.
Sun 11/38:25 pmORD - LHR
1 stop15h 05mTAP AIR PORTUGAL
Sun 11/176:00 amLHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
Deal found 5/7$489
Fri 10/256:00 pmORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Thu 10/317:55 pmLHR - ORD
1 stop25h 35mTAP AIR PORTUGAL
Deal found 5/7$494
Mon 10/216:00 pmORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Fri 11/16:00 amLHR - ORD
1 stop15h 30mTAP AIR PORTUGAL
Deal found 5/7$519
Mon 10/76:00 pmORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Mon 10/218:00 amLHR - ORD
1 stop14h 15mTAP AIR PORTUGAL
Deal found 5/7$523
Wed 10/26:00 pmORD - LHR
1 stop15h 35mTAP AIR PORTUGAL
Mon 10/218:00 amLHR - ORD
1 stop14h 15mTAP AIR PORTUGAL
Deal found 5/7$527
Sun 11/38:25 pmORD - LHR
1 stop15h 05mTAP AIR PORTUGAL
Tue 11/56:30 pmLHR - ORD
1 stop27h 00mTAP AIR PORTUGAL
Deal found 5/7$538
Mon 9/166:00 pmORD - LHR
1 stop12h 45mTAP AIR PORTUGAL
Tue 10/17:50 pmLHR - ORD
1 stop26h 20mTAP AIR PORTUGAL
Deal found 5/7$551
Mon 9/306:00 pmORD - LHR
1 stop22h 00mTAP AIR PORTUGAL
Sun 10/66:45 pmLHR - ORD
1 stop27h 30mTAP AIR PORTUGAL
Deal found 5/7$553
Wed 10/96:00 pmORD - LHR
1 stop22h 00mTAP AIR PORTUGAL
Tue 10/156:45 pmLHR - ORD
1 stop27h 25mTAP AIR PORTUGAL
Deal found 5/6$554

  • One of the most popular airlines traveling from Chicago to London Heathrow Airport is TAP AIR PORTUGAL. Flights from TAP AIR PORTUGAL traveling this route typically cost $802.95 RT. This price is typically 61% more expensive than other airlines that offer Chicago to London Heathrow Airport flights. When booking this route, the cheapest RT price found was $617. The most popular departure airport in Chicago when flying to London Heathrow Airport is Chicago O'Hare Intl Airport. The most popular airport to fly into when visiting London Heathrow Airport is London Heathrow Airport. When flying from Chicago to London Heathrow Airport, TAP AIR PORTUGAL flights are 3% more popular than any other airline flying that same route.

Cheap Finnair flights from Chicago to Heathrow

Explore cheap flight options specifically provided by Finnair for the route between Chicago and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Have a look at some of the cheapest available Finnair flights departing from Chicago and landing in London. Make sure to examine the flight information before completing your reservation.
Wed 6/126:00 pmORD - LHR
Nonstop7h 50mFinnair
Tue 6/188:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$506
Tue 10/110:25 pmORD - LHR
Nonstop7h 50mFinnair
Wed 10/98:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$595
Wed 9/188:20 amORD - LHR
Nonstop7h 50mFinnair
Tue 10/18:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$626
Thu 10/310:25 pmORD - LHR
Nonstop7h 50mFinnair
Tue 10/88:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$645
Mon 5/208:20 amORD - LHR
Nonstop7h 50mFinnair
Wed 6/58:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/8$656
Sat 9/2110:25 pmORD - LHR
Nonstop7h 50mFinnair
Tue 10/158:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$685
Wed 5/1511:00 pmORD - LHR
Nonstop7h 45mFinnair
Sun 5/263:35 pmLHR - ORD
Nonstop8h 40mFinnair
Deal found 5/7$707
Fri 5/1711:00 pmORD - LHR
Nonstop7h 45mFinnair
Mon 5/2012:15 pmLHR - ORD
Nonstop8h 40mFinnair
Deal found 5/7$746
Wed 5/158:20 amORD - LHR
Nonstop7h 50mFinnair
Tue 6/2510:05 amLHR - ORD
Nonstop8h 40mFinnair
Deal found 5/7$776

  • If you’re traveling from Chicago to London Heathrow Airport, one of the more common airlines traveling that route is Finnair. Chicago to London Heathrow Airport flights are typically 60% cheaper than other airlines traveling the same route. Flights from Finnair typically cost $842.70 RT. The cheapest Finnair flight found for this route was $588. Chicago O'Hare Intl Airport is the most common Chicago airport to take off from when flying to London Heathrow Airport. London Heathrow Airport is the most popular arrival airport in London Heathrow Airport. When flying from Chicago to London Heathrow Airport, Finnair flights are 1% more popular than any other airline flying that same route.

Cheap Chicago to Heathrow flights in May & June 2024

Find cheap flight options from Chicago to Heathrow specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,338 searches. Prices were last updated on May 8, 2024.
The lowest fares we've come across on flights traveling from Chicago to London in May and June 2024. More deals are always being added, so be sure to check back regularly.
Wed 5/82:02 pmORD - LHR
1 stop10h 43mDelta
Wed 5/159:00 amLHR - ORD
1 stop12h 00mDelta
Deal found 5/6$643
Tue 5/212:09 pmORD - LHR
1 stop11h 06mUnited Airlines
Mon 6/312:05 pmLHR - ORD
1 stop30h 05mUnited Airlines
Deal found 5/7$644
Wed 5/811:00 pmORD - LHR
Nonstop7h 45mBritish Airways
Thu 5/168:10 amLHR - ORD
Nonstop8h 35mBritish Airways
Deal found 5/6$645
Wed 5/88:30 pmORD - LHR
Nonstop7h 50mFinnair
Wed 5/228:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$646
Sun 5/1211:00 pmORD - LHR
Nonstop7h 45mFinnair
Tue 5/212:45 pmLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$647
Tue 5/146:50 pmORD - LHR
Nonstop8h 10mSWISS
Tue 5/216:00 amLHR - ORD
1 stop12h 10mSWISS
Deal found 5/7$648
Wed 5/86:00 amORD - LHR
1 stop18h 35mMultiple Airlines
Tue 5/146:50 amLHR - ORD
2 stops13h 51mMultiple Airlines
Deal found 5/6$649
Wed 5/83:45 pmORD - LHR
Nonstop8h 10mLufthansa
Wed 5/156:30 amLHR - ORD
1 stop12h 25mLufthansa
Deal found 5/7$650
Tue 5/149:35 pmORD - LHR
Nonstop8h 10mUnited Airlines
Mon 5/277:25 amLHR - ORD
1 stop34h 50mUnited Airlines
Deal found 5/7$651

Chicago to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Chicago and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
The lowest fares we've come across on flights traveling from Chicago to London in May and June 2024. More deals are always being added, so be sure to check back regularly.
Wed 10/91:05 pmMDW - LHR
1 stop11h 20mDelta
Wed 10/236:15 amLHR - MDW
2 stops16h 48mDelta
Deal found 5/7$642
Wed 5/86:00 pmORD - LHR
1 stop11h 10mDelta
Thu 5/169:00 amLHR - ORD
1 stop12h 00mDelta
Deal found 5/6$643
Tue 5/216:00 amORD - LHR
1 stop19h 40mUnited Airlines
Tue 6/48:40 amLHR - ORD
1 stop13h 15mUnited Airlines
Deal found 5/7$644
Wed 5/811:00 pmORD - LHR
Nonstop7h 45mBritish Airways
Thu 5/168:10 amLHR - ORD
Nonstop8h 35mBritish Airways
Deal found 5/6$645
Wed 5/88:30 pmORD - LHR
Nonstop7h 50mFinnair
Wed 5/228:10 amLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$646
Sun 5/1211:00 pmORD - LHR
Nonstop7h 45mFinnair
Tue 5/212:45 pmLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$647
Tue 5/146:50 pmORD - LHR
Nonstop8h 10mSWISS
Tue 5/216:00 amLHR - ORD
1 stop12h 10mSWISS
Deal found 5/7$648
Wed 5/86:00 amORD - LHR
1 stop18h 35mMultiple Airlines
Tue 5/146:50 amLHR - ORD
2 stops13h 51mMultiple Airlines
Deal found 5/6$649
Sun 9/223:45 pmMDW - LHR
1 stop13h 25mDelta
Wed 10/21:55 pmLHR - MDW
1 stop13h 49mDelta
Deal found 5/7$649

Non-stop flights to Heathrow from Chicago

Discover non-stop flight options from Chicago to Heathrow. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Take a look at some of the direct flights traveling from Chicago to London in the near future. Users can also choose from other Chicago to London flights by using the search form above.
Tue 5/149:35 pmORD - LHR
Nonstop8h 10mLufthansa
Wed 10/28:30 amLHR - ORD
Nonstop8h 55mLufthansa
Deal found 5/6$645
Mon 5/138:20 amORD - LHR
Nonstop7h 50mBritish Airways
Tue 11/269:55 amLHR - ORD
Nonstop8h 55mBritish Airways
Deal found 5/7$646
Sun 5/1211:00 pmORD - LHR
Nonstop7h 45mFinnair
Tue 5/212:45 pmLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$647
Mon 5/2011:00 pmORD - LHR
Nonstop7h 45mBritish Airways
Tue 6/412:15 pmLHR - ORD
Nonstop8h 40mBritish Airways
Deal found 5/7$654
Tue 5/2111:00 pmORD - LHR
Nonstop7h 45mAmerican Airlines
Fri 6/78:10 amLHR - ORD
Nonstop8h 35mAmerican Airlines
Deal found 5/7$655
Mon 5/136:00 pmORD - LHR
Nonstop7h 50mFinnair
Fri 5/242:45 pmLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/8$656
Thu 6/206:00 pmORD - LHR
Nonstop7h 50mIberia
Fri 7/58:10 amLHR - ORD
Nonstop8h 35mIberia
Deal found 5/7$657
Mon 7/294:45 pmORD - LHR
Nonstop7h 50mAmerican Airlines
Tue 8/208:10 amLHR - ORD
Nonstop8h 35mAmerican Airlines
Deal found 5/7$658
Wed 6/198:10 amORD - LHR
Nonstop8h 00mBritish Airways
Tue 6/258:10 amLHR - ORD
Nonstop8h 35mBritish Airways
Deal found 5/7$673

Chicago to Heathrow flights leaving soon

Find last-minute flight options from Chicago to Heathrow for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Consider one of these great deals we found on last-minute flights from Chicago to London. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Wed 5/158:20 amORD - LHR
Nonstop7h 50mFinnair
Tue 5/212:45 pmLHR - ORD
Nonstop8h 35mFinnair
Deal found 5/7$626
Wed 5/156:20 pmORD - LHR
Nonstop8h 10mUnited Airlines
Tue 5/218:40 amLHR - ORD
1 stop13h 25mUnited Airlines
Deal found 5/7$629
Tue 5/149:35 pmORD - LHR
Nonstop8h 10mUnited Airlines
Wed 5/228:40 amLHR - ORD
1 stop13h 25mUnited Airlines
Deal found 5/8$630
Tue 5/1411:00 pmORD - LHR
Nonstop7h 45mIberia
Wed 7/318:10 amLHR - ORD
Nonstop8h 35mIberia
Deal found 5/8$631
Tue 5/1410:55 amORD - LHR
1 stop17h 05mUnited Airlines
Wed 5/227:25 amLHR - ORD
1 stop12h 30mUnited Airlines
Deal found 5/7$632
Tue 5/146:50 pmORD - LHR
Nonstop8h 10mUnited Airlines
Wed 10/29:05 amLHR - ORD
1 stop34h 15mUnited Airlines
Deal found 5/6$633
Wed 5/154:05 pmORD - LHR
1 stop13h 30mUnited Airlines
Tue 5/218:40 amLHR - ORD
1 stop13h 25mUnited Airlines
Deal found 5/7$634
Wed 5/156:00 pmORD - LHR
Nonstop7h 50mAmerican Airlines
Thu 5/306:10 amLHR - ORD
1 stop13h 35mAmerican Airlines
Deal found 5/7$636
Tue 5/146:05 pmORD - LHR
1 stop10h 35mMultiple Airlines
Thu 6/206:00 amLHR - ORD
1 stop12h 10mMultiple Airlines
Deal found 5/8$639

One-way flights to Heathrow from Chicago

Search for one-way flight options from Chicago to Heathrow. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
Users traveling one-way from Chicago to London can select one of these great deals. Users needing a return flight from Chicago to London should utilize the search form above.
Mon 10/77:30 pmORD - LHR
1 stop10h 25mIcelandair
Deal found 5/7$219
Sun 10/67:30 pmORD - LHR
1 stop10h 25mIcelandair
Deal found 5/7$230
Tue 10/157:30 pmORD - LHR
1 stop18h 50mIcelandair
Deal found 5/7$235
Sun 11/36:30 pmORD - LHR
1 stop10h 25mIcelandair
Deal found 5/7$237
Tue 9/2410:15 pmORD - LHR
1 stop16h 05mIcelandair
Deal found 5/7$243
Tue 10/227:30 pmORD - LHR
1 stop10h 25mIcelandair
Deal found 5/7$250
Mon 9/237:30 pmORD - LHR
1 stop10h 25mIcelandair
Deal found 5/7$254
Mon 10/75:19 pmORD - LHR
2 stops21h 36mMultiple Airlines
Deal found 5/7$262
Sat 10/57:25 pmORD - LHR
1 stop10h 30mIcelandair
Deal found 5/7$277

Find flights from Chicago to Heathrow within your budget

Customize your flight search to find flights from Chicago to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$489 - $629

Route

Depart

Return

Price

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Sun 11/3

1 stop15h 05m

London Heathrow

Sun 11/17

1 stop15h 30m

$489

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Wed 6/12

Nonstop7h 50m

London Heathrow

Tue 6/18

Nonstop8h 35m

$506

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 8/19

1 stop16h 05m

London Heathrow

Sun 8/25

1 stop26h 50m

$536

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 10/18

2 stops31h 50m

London Heathrow

Mon 10/21

1 stop17h 15m

$549

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 10/15

Nonstop7h 55m

London Heathrow

Wed 10/23

1 stop13h 35m

$575

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 10/21

Nonstop7h 50m

London Heathrow

Wed 11/20

1 stop14h 05m

$577

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 10/1

Nonstop7h 50m

London Heathrow

Wed 10/23

Nonstop8h 35m

$623

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 10/4

1 stop11h 20m

London Heathrow

Mon 10/7

1 stop11h 40m

$624

Chicago O'Hare IntlLondon Heathrow

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Tue 8/6

Nonstop8h 15m

London Heathrow

Tue 8/27

1 stop12h 10m

$629

Flights are sorted by cheapest first

Deals found on 5/7

When is the best time to book a flight from Chicago to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Heathrow. Price data was last updated on May 3, 2024.
To ensure you get the cheapest price possible for a flight from Chicago to London Heathrow Airport, you should look to book at least 43 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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When is the cheapest time to fly from Chicago to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Heathrow. Price data was last updated on May 5, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Chicago to London Heathrow Airport flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Heathrow by month

Plan your trip from Chicago to Heathrow by taking into account the cheapest months to travel. The average price of a one-way flight from Chicago to Heathrow is currently $245 while a round-trip flight costs $568. Price data was last updated on May 5, 2024.

Currently, November is the cheapest month in which you can book a flight from Chicago to London Heathrow Airport (average of $653). Flying from Chicago to London Heathrow Airport in June is currently the most expensive (average of $1,158). 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.

January

$673

February

$663

March

$715

April

$692

May

$735

June

$1,158

July

$980

August

$776

September

$743

October

$710

November

$653

December

$671

Temperature and rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated May 8, 2024.
Get a feel of what it's like to fly with TAP AIR PORTUGAL, Finnair and Icelandair from Chicago to London by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,789 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.1
Very good
10,789 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,592 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.8
Good
2,013 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Finnair
7.8
Good
1,379 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Virgin Atlantic
7.7
Good
739 reviews
Delta
8.1
Very good
10,789 reviews
Check prices

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

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

  • Can I find flights from Chicago to London Heathrow Airport for under $500 on Cheapflights?

    Yes, there are multiple flights from Chicago to London Heathrow Airport for under $500. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $489, but on average you can expect to pay $539.

  • Are there nonstop flights from Chicago to London Heathrow Airport for under $700 on Cheapflights?

    Cheapflights has at least 20 direct flights from Chicago to London Heathrow Airport under $700. A good price for a nonstop flight from Chicago to London Heathrow Airport is less than $674.

  • Are there last-minute flights available from Chicago to London Heathrow Airport for under $700?

    There are currently 20+ open flights from Chicago to London Heathrow Airport within the next 7 days for less than $700.

  • What days are nonstop flights available from Chicago to London Heathrow Airport?

    Nonstop flights can be found on the following days: Wednesday, Thursday, Friday.

  • How many flights depart from Chicago to London Heathrow Airport on average per day?

    Per day, 7 flights depart from Chicago to London Heathrow Airport on average.
    Afternoon (Noon - 6pm) - 100% of flight departures

  • How long is the flight from Chicago to London Heathrow Airport?

    There are many flights that can get you from Chicago to London Heathrow Airport in 7h 50m. Fly via TAP AIR PORTUGAL, Finnair, or Icelandair to get the fastest option. Chicago and London Heathrow Airport are separated by a distance of 3964 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from Chicago to London Heathrow Airport is TAP AIR PORTUGAL. Our recent data shows that you can find tickets from as low as $489 on this airline. Additional options worth looking into are Finnair and Icelandair, starting at $506 and $536 round-trip. You may be able to fly from Chicago to London Heathrow Airport for 39% less than the average price by searching for these airlines.

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

    Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from Chicago to London Heathrow Airport.

  • What are the most reliable airlines from Chicago to London Heathrow Airport?

    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 Heathrow Airport on time: EL AL (91%), Qatar Airways (78%), Aer Lingus (78%).

  • What are the cheapest flights from Chicago to London Heathrow Airport?

    On average you can expect to pay $3,602 for a flight from Chicago to London Heathrow Airport. The cheapest flight overall is $425 while the most popular route, (Chicago O'Hare Intl - London Heathrow) is currently priced at $524.

  • What does ORD to LHR mean?

    ORD stands for Chicago O'Hare Intl Airport, while LHR stands for London Heathrow Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD) are some additional IATA codes for airports related to your trip.

  • Where are the most common layover locations when flying from Chicago to London Heathrow Airport?

    Chicago to London Heathrow Airport flights have a layover in Reykjavik most often. Reykjavik is followed by Dublin in terms of the most popular layover location on flights from Chicago to London Heathrow Airport.

  • What are some popular things to do or see while on a layover in Reykjavik?

    Hallgrímskirkja, Icelandic Phallological Museum, and Harpa are currently the most popular points of interest in Reykjavik at the moment. Hallgrímskirkja, Icelandic Phallological Museum, and Harpa can be accessed by traveling approximately 23.2 mi, 23.5 mi, and 23.3 mi, respectively from Reykjavik Keflavik Intl. Travelers in need of a car in Reykjavik can rent one for about $56 per day.

  • What are some popular points of interest to see during a layover in Dublin?

    Dublin travelers tend to visit St. Patrick's Cathedral, Molly Malone Statue, and Dublin Castle more than any other notable places. St. Patrick's Cathedral, Molly Malone Statue and Dublin Castle are located about 6.1 mi, 5.8 mi, and 5.8 mi, respectively from Dublin if you are interested in checking them out. Those looking to explore during their layover in Dublin can rent a car from Dublin for about $27 per day.

  • Where are the least popular layover locations for Chicago to London Heathrow Airport flights?

    Chicago to London Heathrow Airport flights that have layovers will least frequently stop in Copenhagen.

  • Can I find deals for flights from Chicago to Heathrow that include extra baggage allowance?

    The amount of baggage you can bring on your Chicago to Heathrow flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Chicago to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Chicago to Heathrow flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from Chicago to Heathrow?

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

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

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

  • Can I find deals for flights from Chicago to Heathrow that allow pets onboard?

    Many airlines flying from Chicago to Heathrow offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Chicago to Heathrow?

    Yes, you can often find last-minute deals on Chicago to Heathrow flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Chicago to London Heathrow Airport flight deals updated?

    The Chicago to London Heathrow Airport flight deals you see on this page were last updated on 5/7.

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Alternative routes for Chicago to Heathrow
See prices for flight routes from nearby airports that may be better suited for you.

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Top 10 airlines flying from Chicago to Heathrow

Discover the top 10 airlines that operate flights from Chicago to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,752,338 searches. Data last updated May 8, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$253Average$841FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest$414Average$502FlexibilityNo cancel feeOn-time77%
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DeltaCheapest$451Average$821FlexibilityNo cancel feeOn-timeN/A
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IcelandairCheapest$503Average$682FlexibilityNo cancel feeOn-time76%
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TAP AIR PORTUGALCheapest$512Average$855FlexibilityNo cancel feeOn-timeN/A
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Aer LingusCheapest$529Average$778FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest$572Average$853FlexibilityNo cancel feeOn-time69%
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Air CanadaCheapest$573Average$722FlexibilityNo cancel feeOn-time67%
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IberiaCheapest$579Average$752FlexibilityNo cancel feeOn-time77%
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Virgin AtlanticCheapest$583Average$683FlexibilityNo cancel feeOn-time72%
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Search flights from Chicago to Heathrow by cabin class

Find flights from Chicago to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Chicago to Heathrow

Find hourly flight availability from Chicago to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 8, 2024.
1%of flight departuresEarly morningMidnight to 6 am
10%of flight departuresMorning6 am to noon
49%of flight departuresAfternoonNoon to 6 pm
40%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Chicago to Heathrow

Explore weekly flight availability from Chicago to Heathrow. 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 May 8, 2024.
Sunday25daily flights
Monday37daily flights
Tuesday35daily flights
Wednesday35daily flights
Thursday35daily flights
Friday35daily flights
Saturday25daily flights

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Deals for Chicago to Heathrow 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 better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Heathrow from Chicago by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to Heathrow from Chicago shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Chicago today and book when prices fit your budget.

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