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Flight Deals from London Heathrow Airport to Chicago O Hare Airport from $456

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Stops

  • Up to nonstop
    $1274
  • Up to 1 stop
    $725

Airlines

  • Aer Lingus
    $918
  • Air Canada
    $1781
  • Alaska Airlines
    $1263
  • American Airlines
    $1274
  • British Airways
    $3236
  • Brussels Airlines
    $1835
  • Delta Air Lines
    $849
  • Etihad Airways
    $12275
  • Hahn Air
    $8149
  • Icelandair
    $866
  • ITA Airways
    $1009
  • LOT Polish Airlines
    $963
  • Lufthansa
    $971
  • SAS Airlines
    $725
  • TAP Portugal
    $753
  • United Airlines
    $1759

Cabin Class

  • Economy
    $725

Departure Airports

  • London City Airport
    $1397
  • London Gatwick Airport
    $753
  • London Heathrow Airport
    $725

Arrival Airports

  • Chicago O Hare Airport
    $725

Layover Airports

  • Abu Dhabi International Airport
    $12275
  • Adolfo Suárez Madrid–Barajas Airport
    $3236
  • Brussels Airport
    $1759
  • Copenhagen Kastrup Airport
    $725
  • Detroit Metropolitan Airport
    $849
  • Dublin Airport
    $918
  • Frankfurt am Main Airport
    $971
  • Humberto Delgado Airport (Lisbon Portela Airport)
    $753
  • Montreal Trudeau Airport
    $1781
  • Newark Liberty Airport
    $971
  • Paris Charles de Gaulle Airport
    $849
  • Reykjavik Keflavik Airport
    $866
  • Rome Fiumicino Airport
    $1009
  • Seattle Tacoma International Airport
    $1263
  • Toronto Pearson Airport
    $1781
  • Warsaw Chopin Airport
    $963

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SAS Airlines Logo
SAS Airlines

02/02/27

LHR
12h 25m
CPH

02/02/27

ORD
SAS Airlines Logo
SAS Airlines

02/06/27

ORD
32h
CPH

02/08/27

LHR
$725
TAP Portugal Logo
TAP Portugal

11/22/26

LHR
15h 30m
LIS

11/22/26

ORD
TAP Portugal Logo
TAP Portugal

11/29/26

ORD
13h 35m
LIS

11/30/26

LGW
$753
Delta Air Lines Logo
Delta Air Lines

02/10/27

LHR
12h 15m
CDG

02/10/27

ORD
Delta Air Lines Logo
Delta Air Lines

02/17/27

ORD
13h 10m
DTW

02/18/27

LHR
$849
Bundle + Save
Book a flight & hotel together for extra savings.
On average save $240 per traveler
Icelandair Logo
Icelandair

01/19/27

LHR
11h 5m
KEF

01/19/27

ORD
Icelandair Logo
Icelandair

01/26/27

ORD
10h 20m
KEF

01/27/27

LHR
$866
Aer Lingus Logo
Aer Lingus

02/10/27

LHR
13h 5m
DUB

02/10/27

ORD
British Airways Logo
British Airways

02/17/27

ORD
7h 45m
Direct

02/18/27

LHR
$918
LOT Polish Airlines Logo
LOT Polish Airlines

10/08/26

LHR
15h 30m
WAW

10/08/26

ORD
LOT Polish Airlines Logo
LOT Polish Airlines

10/13/26

ORD
13h 20m
WAW

10/14/26

LHR
$963
Lufthansa Logo
Lufthansa

09/02/26

LHR
12h 25m
FRA

09/02/26

ORD
United Airlines Logo
United Airlines

09/09/26

ORD
10h 25m
EWR

09/09/26

LHR
$971
LOT Polish Airlines Logo
LOT Polish Airlines

10/22/26

LHR
14h 40m
WAW

10/22/26

ORD
LOT Polish Airlines Logo
LOT Polish Airlines

10/31/26

ORD
13h 25m
WAW

11/01/26

LHR
$978
ITA Airways Logo
ITA Airways

09/16/26

LHR
26h 40m
FCO

09/17/26

ORD
ITA Airways Logo
ITA Airways

09/23/26

ORD
18h 40m
FCO

09/24/26

LHR
$1009
Alaska Airlines Logo
Alaska Airlines

05/27/26

LHR
19h 20m
SEA

05/28/26

ORD
Alaska Airlines Logo
Alaska Airlines

06/09/26

ORD
15h 21m
SEA

06/10/26

LHR
$1263
American Airlines Logo
American Airlines

02/10/27

LHR
8h 45m
Direct

02/10/27

ORD
American Airlines Logo
American Airlines

02/17/27

ORD
7h 45m
Direct

02/18/27

LHR
$1274
Aer Lingus Logo
Aer Lingus

05/06/26

LHR
12h 20m
DUB

05/06/26

ORD
IBERIA Logo
IBERIA

05/14/26

ORD
10h 50m
DUB

05/15/26

LCY
$1397
United Airlines Logo
United Airlines

05/20/26

LHR
11h 10m
BRU

05/20/26

ORD
Lufthansa Logo
Lufthansa

05/26/26

ORD
8h 15m
Direct

05/27/26

LHR
$1759
Bundle + Save
Book a flight & hotel together for extra savings.
On average save $240 per traveler
Air Canada Logo
Air Canada

05/20/26

LHR
11h 23m
YUL

05/20/26

ORD
Air Canada Logo
Air Canada

05/26/26

ORD
10h 20m
YYZ

05/27/26

LHR
$1781
Brussels Airlines Logo
Brussels Airlines

05/22/26

LHR
9h 5m
Direct

05/22/26

ORD
Lufthansa Logo
Lufthansa

05/28/26

ORD
8h 15m
Direct

05/29/26

LHR
$1835
British Airways Logo
British Airways

10/14/26

LHR
15h 45m
MAD

10/14/26

ORD
American Airlines Logo
American Airlines

10/21/26

ORD
12h 35m
YYZ

10/22/26

LHR
$3236
LOT Polish Airlines Logo
LOT Polish Airlines

07/27/26

LHR
15h 30m
WAW

07/27/26

ORD
Aer Lingus Logo
Aer Lingus

08/10/26

ORD
10h 20m
DUB

08/11/26

LHR
$8149
Etihad Airways Logo
Etihad Airways

04/11/27

LHR
29h 5m
AUH

04/12/27

ORD
Etihad Airways Logo
Etihad Airways

04/17/27

ORD
22h 45m
AUH

04/18/27

LHR
$12275

Top Deals on flights from London Heathrow Airport to Chicago O Hare Airport

London, GB (LON) - Chicago, US (CHI)

Icelandair Logo
Icelandair

Nov 9

LHR
11h 5m
KEF

Nov 9

ORD

as low as

$456

London, GB (LON) - Chicago, US (CHI)

American Airlines Logo
American Airlines

Nov 4

LHR
13h 40m
YYZ

Nov 4

ORD

as low as

$526

London, GB (LON) - Chicago, US (CHI)

United Airlines Logo
United Airlines

Sep 23

LHR
13h 15m
ZRH

Sep 23

ORD

as low as

$528

London, GB (LON) - Chicago, US (CHI)

Delta Air Lines Logo
Delta Air Lines

Sep 2

LHR
11h 50m
AMS

Sep 2

ORD

as low as

$548

London, GB (LON) - Chicago, US (CHI)

 Logo

Jan 17

LHR
24h 35m
VIE

Jan 18

ORD

as low as

$552

London, GB (LON) - Chicago, US (CHI)

Lufthansa Logo
Lufthansa

Sep 8

LHR
12h 40m
MUC

Sep 8

ORD

as low as

$555

London, GB (LON) - Chicago, US (CHI)

Brussels Airlines Logo
Brussels Airlines

Nov 4

LHR
11h 20m
BRU

Nov 4

ORD

as low as

$557

London, GB (LON) - Chicago, US (CHI)

 Logo

Sep 20

LHR
22h 30m
ZRH

Sep 21

ORD

as low as

$611

London, GB (LON) - Chicago, US (CHI)

Aer Lingus Logo
Aer Lingus

Nov 4

LHR
11h 10m
DUB

Nov 4

ORD

as low as

$674

London, GB (LON) - Chicago, US (CHI)

TAP Portugal Logo
TAP Portugal

Jun 24

LHR
14h
LIS

Jun 24

ORD

as low as

$707

London, GB (LON) - Chicago, US (CHI)

American Airlines Logo
American Airlines

Sep 2

LHR
8h 45m
Direct

Sep 2

ORD

as low as

$775

London, GB (LON) - Chicago, US (CHI)

Lufthansa Logo
Lufthansa

May 29

LHR
21h 28m
FRA
JFK

May 29

ORD

as low as

$1001

Good to Know

Essential information to help you plan your flight from London Heathrow Airport to Chicago O Hare Airport

Cheapest Flight

$456

The lowest price we found in the last two weeks, departing Nov 9 and returning Nov 9

Airline FI1 stop ‧ 11h 5m ‧ economy

Fastest Flights

$1274

The fastest flight that we found in the last two weeks, departing Feb 10 and returning Feb 18

Airline AA8h 45m ‧ economy

Cheapest Flight Round-trip

$725

Cheapest price found in the last 14 days, departing Feb 2 and returning Feb 8

Airline SK1 stop ‧ 12h 25m ‧ economy

Cheapest Flight One-way

$456

Cheapest price found in the last 14 days, departing Nov 9

Airline FI1 stop ‧ 11h 5m ‧ economy

Cheapest Layover airport

$849

The cheapest layover airport to Chicago is currently $849

Airline DL1 stop ‧ 12h 15m ‧ economy

Best Arrival airport

$456

The best arrival airport to Chicago is currently $456

Airline FI1 stop ‧ 11h 5m ‧ economy

Best Departure airport

$456

The best departure airport to Chicago is currently $456

Airline FI1 stop ‧ 11h 5m ‧ economy

Cheapest Airline

$456

The cheapest airline to Chicago is currently $456

Airline FI1 stop ‧ 11h 5m ‧ economy

Frequently Asked Questions

What is the typical flight duration from London to Chicago?

A nonstop flight from London (LHR) to Chicago (ORD) takes approximately 8 hours 15 minutes to 8 hours 30 minutes. Flights with layovers, commonly in cities like Dallas or New York, usually extend to 10–12 hours total.

Are there any direct flights from London to Chicago?

Yes. Non-stop flights from London Heathrow to Chicago O'Hare operate daily, with a typical duration of about 8 hours 30 minutes to 9 hours. Airlines offering this route include British Airways and American Airlines, with approximately 14 daily departures. Non-stop flights generally cost 10-20% more than one-stop alternatives due to convenience and shorter travel time.

Are there visa requirements to travel from London to Chicago?

Travelers from London to Chicago generally need a visa unless they qualify for visa exemption under the Visa Waiver Program, which requires an approved ESTA. Effective from November 2024, the UK is part of the US Visa Waiver Program, so travelers from the UK to the US for short visits of 90 days or less must obtain an ESTA authorization before travel. U.S. citizens do not need a visa but must carry valid proof of citizenship. Travelers from other countries should verify specific visa requirements based on their nationality.

What are the ground transportation options in Chicago?

Chicago O'Hare International Airport offers several ground transportation options. The CTA Blue Line train connects the airport directly to downtown Chicago in about thirty-five minutes and is the most popular and cost-effective choice. Taxis and ride-share services like Uber and Lyft are readily available outside the terminals, providing convenient door-to-door service in approximately twenty to thirty minutes depending on traffic. Car rentals are available at the airport for travelers planning regional trips or flexible schedules. Buses and shuttles are also available but are generally slower than the train or taxi options. Most travelers prefer the CTA Blue Line for its affordability and reliability.

When is the cheapest time to fly from London to Chicago?

Fares are generally lowest from January to March and in November. Tuesday and Wednesday afternoon flights tend to be cheaper; booking two to four months ahead is advisable.

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

Reserve tickets six to nine weeks in advance generally, and twelve to sixteen weeks during summer and holiday peak seasons.

Are overnight (red‑eye) flights available from London to Chicago?

Yes. London to Chicago flights often depart late evening and arrive early morning, allowing travelers to maximize daytime in Chicago.

Which airlines usually operate this route from London to Chicago?

Non‑stop carriers include British Airways and American Airlines. One‑stop flights via European hubs are available from Lufthansa, Air France and KLM.

If I need a connection, what are common layover cities between London and Chicago?

Common layovers include Toronto, Dallas, Atlanta and New York City, offering broad connections and efficient transfers.

How reliable are on‑time departures on this route from London to Chicago?

On‑time departures from London to Chicago are usually reliable, but congestion and weather can cause delays, especially later in the day. Booking early flights with British Airways or American Airlines can improve your chances of departing on time.

Which months have the best weather for traveling to Chicago?

May to June and September offer mild weather and fewer tourists.

What documents should I bring with me to the airport when flying from London to Chicago?

Bring a valid passport with at least six months' validity, any necessary US visa or ESTA authorization, proof of onward travel, and a payment method for bags. Vaccination certificates may be required based on current health regulations.

Which airport should I use in Chicago?

O'Hare is the primary international hub serving Chicago with extensive connections and proximity to downtown. Midway is closer to the city center and caters mainly to domestic and low-cost carriers.

How do I get to Heathrow Airport airport from the city center?

From central London, the Heathrow Express train to the airport takes about 15 min and is fastest and popular. The London Underground Piccadilly Line also serves Heathrow, taking around 50 min. Taxis and ride-shares are convenient but more costly; driving and parking are options but less common for travelers.

Are there hotels or sleeping facilities at Chicago airport?

Chicago O'Hare has on-site hotels including the Hilton O'Hare and Hyatt Regency, located in connected hotel complexes accessible via walkways without shuttles. There are also sleeping pods and quiet zones at various terminals.

Are there currency exchange offices, prayer rooms and Wi‑Fi at O'Hare Intl Airport ?

O'Hare International Airport has currency exchange offices in all terminals, a multi-faith chapel near Terminal 2, and free Wi‑Fi throughout the airport.

Are there accessible services or children's facilities at the London and Chicago airports?

London Heathrow offers bookable mobility assistance, accessible toilets, quiet rooms, and children’s play zones; request assistance 48 hours in advance. Chicago O’Hare provides wheelchair services, accessible restrooms, and family lounges; arrange help through your airline at least 48 hours before travel.

Which aircraft models fly between London and Chicago this route and do airlines offer Wi‑Fi?

Common aircraft include Boeing 777‑300ER, Boeing 787‑9 and Airbus A350. British Airways and American Airlines offer Wi‑Fi and inflight entertainment.

Which airline alliances operate this route?

Oneworld (British Airways, American Airlines), Star Alliance (Lufthansa), and SkyTeam (Air France) operate flights from London to Chicago.

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

Afternoon departures on weekdays often have lower fares than morning or evening flights.

What are the best airport lounge options when departing from London?

At Heathrow, the British Airways Concorde Room and Galleries Lounge offer luxury amenities for premium passengers, with access for first and business class travelers and oneworld elite members. The Virgin Atlantic Clubhouse provides premium services for Virgin Atlantic upper class passengers and Flying Club Gold members. Many lounges offer day passes or credit card access, featuring fine dining, spa services, and quiet zones.

What is the baggage allowance on this route from London to Chicago?

Baggage allowance varies by airline and fare class. Basic economy often excludes checked bags; standard international economy usually includes one checked bag and a carry‑on. Premium cabins offer more.

What cabin and seat options are typical from London to Chicago?

Flights from London to Chicago generally include Economy, Premium Economy, and flat‑bed Business class; First class is uncommon.

Are same‑day changes or standby possible on this route?

Policies vary by airline and fare class; flexible tickets and premium cabins generally allow same‑day changes or standby, while basic fares often do not.

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