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Cheap flights from the United Kingdom to Chicago from $329

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Chicago departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from the United Kingdom to Chicago

Recent round-trip flight deals from the United Kingdom to Chicago

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
6:40 am - 4:45 pmLHR-ORD
16h 05m2 stops
Scandinavian Airlines Logo
7:20 pm - 6:50 pmORD-LHR
17h 30m2 stops
$533Scandinavian Airlines
Find Deal
Sun, Nov 23 - Sun, Nov 30
Scandinavian Airlines Logo
3:35 pm - 4:45 pmLHR-ORD
31h 10m2 stops
Scandinavian Airlines Logo
7:20 pm - 6:30 pmORD-LHR
17h 10m1 stop
$534Scandinavian Airlines
Find Deal
Sat, Nov 22 - Sun, Nov 23
Scandinavian Airlines Logo
10:20 am - 4:45 pmLHR-ORD
12h 25m1 stop
Scandinavian Airlines Logo
7:20 pm - 6:50 pmORD-LHR
17h 30m2 stops
$535Scandinavian Airlines
Find Deal
Sun, Nov 23 - Sat, Nov 29
Icelandair Logo
11:55 am - 5:20 pmLGW-ORD
11h 25m1 stop
Icelandair Logo
6:30 pm - 10:55 amORD-LGW
10h 25m1 stop
$546Icelandair
Find Deal
Tue, Feb 17 - Mon, Feb 23
Icelandair Logo
11:55 am - 5:20 pmLGW-ORD
11h 25m1 stop
Icelandair Logo
7:30 pm - 10:55 amORD-LGW
10h 25m1 stop
$547Icelandair
Find Deal
Wed, Mar 4 - Wed, Mar 18
United Airlines Logo
9:25 am - 7:45 amEDI-ORD
28h 20m2 stops
United Airlines Logo
1:00 pm - 7:55 amORD-EDI
12h 55m1 stop
$776United Airlines
Find Deal
Tue, Dec 9 - Thu, Jan 15
American Airlines Logo
7:50 am - 5:00 pmEDI-ORD
15h 10m1 stop
American Airlines Logo
8:45 pm - 5:40 pmORD-EDI
14h 55m1 stop
$781American Airlines
Find Deal
Tue, Dec 9 - Thu, Jan 15
American Airlines Logo
6:50 am - 5:00 pmEDI-ORD
16h 10m1 stop
American Airlines Logo
9:45 pm - 5:40 pmORD-EDI
13h 55m1 stop
$782American Airlines
Find Deal
Tue, Dec 9 - Thu, Jan 15
British Airways Logo
10:00 am - 7:23 pmEDI-ORD
15h 23m2 stops
British Airways Logo
8:45 pm - 4:35 pmORD-EDI
13h 50m1 stop
$795British Airways
Find Deal
Tue, Dec 9 - Thu, Jan 15
United Airlines Logo
9:25 am - 6:23 pmEDI-ORD
14h 58m2 stops
United Airlines Logo
3:35 pm - 7:55 amORD-EDI
10h 20m1 stop
$816United Airlines
Find Deal
Tue, Dec 9 - Thu, Jan 15

TAP AIR PORTUGAL flights from United Kingdom to Chicago

Our best TAP AIR PORTUGAL deals on United Kingdom to Chicago flight tickets
TAP AIR PORTUGAL
Apr 21
LGW10:35 amLondon Gatwick
35h 25m
1 stop
ORD4:00 pmChicago O'Hare Intl
Apr 26
ORD6:00 pmChicago O'Hare Intl
15h 10m
1 stop
LGW3:10 pmLondon Gatwick
$541
Find similar
TAP AIR PORTUGAL
Apr 21
LGW9:15 pmLondon Gatwick
24h 45m
2 stops
ORD4:00 pmChicago O'Hare Intl
Apr 26
ORD6:00 pmChicago O'Hare Intl
15h 10m
1 stop
LGW3:10 pmLondon Gatwick
$609
Find similar
TAP AIR PORTUGAL
Dec 3
LGW9:35 amLondon Gatwick
59h 50m
2 stops
ORD3:25 pmChicago O'Hare Intl
Dec 10
ORD7:10 pmChicago O'Hare Intl
13h 55m
1 stop
LGW3:05 pmLondon Gatwick
$613
Find similar

Lufthansa flights from United Kingdom to Chicago

Our best Lufthansa deals on United Kingdom to Chicago flight tickets
Lufthansa
Mar 4
LCY9:50 amLondon City
16h 15m
1 stop
ORD8:05 pmChicago O'Hare Intl
Mar 10
ORD7:30 pmChicago O'Hare Intl
17h 05m
1 stop
LCY5:35 pmLondon City
$716
Find similar
Lufthansa
Dec 1
LCY5:15 pmLondon City
23h 55m
1 stop
ORD11:10 amChicago O'Hare Intl
Dec 8
ORD3:20 pmChicago O'Hare Intl
11h 55m
1 stop
LCY9:15 amLondon City
$722
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United Kingdom to Chicago 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, momondo users made 832,500 searches. Data last updated November 5, 2025.
Use the filters below to find and compare flights from the United Kingdom to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 11/23

6:40 am-4:45 pm

2 stops16h 05m

Chicago O'Hare Intl

Sun 11/30

7:20 pm-6:50 pm

2 stops17h 30m

$533

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sat 11/22

3:35 pm-4:45 pm

2 stops31h 10m

Chicago O'Hare Intl

Sun 11/23

7:20 pm-6:30 pm

1 stop17h 10m

$534

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Sun 11/23

10:20 am-4:45 pm

1 stop12h 25m

Chicago O'Hare Intl

Sat 11/29

7:20 pm-6:50 pm

2 stops17h 30m

$535

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Tue 2/17

11:55 am-5:20 pm

1 stop11h 25m

Chicago O'Hare Intl

Mon 2/23

6:30 pm-10:55 am

1 stop10h 25m

$546

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 3/4

11:55 am-5:20 pm

1 stop11h 25m

Chicago O'Hare Intl

Wed 3/18

7:30 pm-10:55 am

1 stop10h 25m

$547

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Tue 12/9

9:25 am-7:45 am

2 stops28h 20m

Chicago O'Hare Intl

Thu 1/15

1:00 pm-7:55 am

1 stop12h 55m

$776

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Tue 12/9

7:50 am-5:00 pm

1 stop15h 10m

Chicago O'Hare Intl

Thu 1/15

8:45 pm-5:40 pm

1 stop14h 55m

$781

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Tue 12/9

6:50 am-5:00 pm

1 stop16h 10m

Chicago O'Hare Intl

Thu 1/15

9:45 pm-5:40 pm

1 stop13h 55m

$782

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Tue 12/9

10:00 am-7:23 pm

2 stops15h 23m

Chicago O'Hare Intl

Thu 1/15

8:45 pm-4:35 pm

1 stop13h 50m

$795

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Tue 12/9

9:25 am-6:23 pm

2 stops14h 58m

Chicago O'Hare Intl

Thu 1/15

3:35 pm-7:55 am

1 stop10h 20m

$816

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from United Kingdom to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Chicago?

The month of February is, on average, the cheapest month to fly to Chicago from United Kingdom, with most prices found around $579. If you’re not able to fly to Chicago in February, then September is your next best option. Flight prices from United Kingdom to Chicago during September average around $584.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Wednesday when prices can be found for as low as $774. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from United Kingdom to Chicago for around $889.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from United Kingdom to Chicago during this time can be as low as $653. In contrast, the most expensive time of day to depart to Chicago is in the afternoon when prices are around $904.

What is the cheapest United Kingdom to Chicago flight route?

Fly from London Heathrow to Chicago O'Hare Intl for the best United Kingdom - Chicago flight prices

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

You are more likely to see cheaper flights to Chicago from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $733 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from United Kingdom for as low as $693 on momondo.

What cabin class options are available on United Kingdom to Chicago flights?

There are 4 cabin classes available to choose from on United Kingdom to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United Kingdom to Chicago flights?

No. A direct flight is the cheapest option for a flight between United Kingdom to Chicago.

Cheap United Kingdom to Chicago flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Chicago

Best Price Found

$627

Fastest flight time

8h 25m

Direct flights

Every day

Airports in Chicago

1 airport
The best one-way flight to Chicago from United Kingdom in the past 72 hours is $627. The best round-trip flight deal from United Kingdom to Chicago found on momondo in the last 72 hours is $794.
The fastest flight from United Kingdom to Chicago takes 8h 25m
Direct flights go from United Kingdom to Chicago every day.
There is 1 airport near Chicago: Chicago O'Hare Intl (ORD)
Search flight deals

  • When did momondo last update prices for flights from United Kingdom to Chicago?

    Prices for flights from United Kingdom to Chicago are updated daily.

  • How many operators does momondo search for flights from United Kingdom to Chicago?

  • How old do you have to be to fly from United Kingdom to Chicago?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United Kingdom to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from United Kingdom to Chicago?

Best airlines flying from United Kingdom to Chicago

Compare and see reviews for airlines that fly from United Kingdom to Chicago with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $390Free CancellationRating
7.1
571 reviews
Search Icelandair flights
Aer LingusPriceFrom $446Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $485Free CancellationRating
7.4
9,004 reviews
Search United Airlines flights
Austrian AirlinesPriceFrom $530Free CancellationRating
7.6
864 reviews
Search Austrian Airlines flights
British AirwaysPriceFrom $531Free CancellationRating
6.7
7,496 reviews
Search British Airways flights
TAP AIR PORTUGALPriceFrom $558Free CancellationRating
7.1
2,046 reviews
Search TAP AIR PORTUGAL flights
American AirlinesPriceFrom $572Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
IberiaPriceFrom $599Free CancellationRating
7.0
3,007 reviews
Search Iberia flights
FinnairPriceFrom $625Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
Brussels AirlinesPriceFrom $633Free CancellationRating
7.2
369 reviews
Search Brussels Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Saint Joseph
Portage
Lansing
Schererville
Valparaiso
Crown Point
Munster
Chesterton
Monticello
Porter
Griffith
Saint John

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to Chicago?

Finding the right flight to Chicago from United Kingdom is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

Can I find flights from United Kingdom to Chicago with flexible booking policies on momondo?

Yes. All flights to Chicago from United Kingdom on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from United Kingdom to Chicago?

Once you have performed a search for United Kingdom to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from United Kingdom to Chicago right now. Can momondo alert me if prices change?

Price alerts on flights to Chicago from United Kingdom are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport