What is the cheapest airline that flies from United Kingdom to Chicago?

Icelandair, Delta, and SWISS are the most popular carriers operating from United Kingdom to Chicago

Which airline has the best punctuality record on the United Kingdom to Chicago flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 5% of their flights experiencing any sort of delay.

How often are flights from the United Kingdom to Chicago delayed?

Historically, on average around 11% of flights between United Kingdom and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 172 minutes.

How many flights depart from United Kingdom to Chicago on average per day?

As of December 2025, there are 40 flights per day flying from United Kingdom to Chicago. The most common time of day flights depart is 12:00PM, with 65% of flights taking off in the afternoon.

What airlines fly to Chicago?

British Airways, Aer Lingus and American Airlines are the top three most popular airlines that fly to Chicago from United Kingdom according to our data. British Airways is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 11 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

How many flights depart from United Kingdom to Chicago on average per week?

As of December 2025, there are 281 flights per week flying from United Kingdom to Chicago. The most common day of the week flights depart is Sat, with 16% of flights taking off on this day.

What is the most punctual flight time for the United Kingdom to Chicago flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

How long does it take to fly to Chicago?

Average flight duration from United Kingdom to Chicago depends on which airport you fly into and out of. Flying from Edinburgh to Chicago O'Hare Intl Airport is 8h 35m on average, while flying from London to Chicago O'Hare Intl Airport is 9h 50m on average. Chicago O'Hare Intl Airport is the most popular airport in Chicago.

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?

As of December 2025, there are 11 operators available to choose from 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.

$343 Cheap Flights from the United Kingdom to Chicago in 2025/26

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

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10:10 am - 5:55 pm

MAN

ORD

12h 45m1 stop

8:20 pm - 6:35 pm

ORD

MAN

17h 15m1 stop

$536Scandinavian Airlines

Fri, Mar 13 - Sun, Mar 15

10:10 am - 4:55 pm

MAN

ORD

12h 45m1 stop

7:20 pm - 9:30 am

ORD

MAN

32h 10m1 stop

$538Scandinavian Airlines

Sun, Feb 1 - Sun, Mar 1

10:10 am - 4:55 pm

MAN

ORD

12h 45m1 stop

7:20 pm - 12:15 pm

ORD

MAN

34h 55m2 stops

$539Scandinavian Airlines

Sun, Feb 1 - Sun, Mar 1

10:10 am - 4:45 pm

MAN

ORD

12h 35m1 stop

7:20 pm - 6:35 pm

ORD

MAN

17h 15m1 stop

$540Scandinavian Airlines

Fri, Feb 13 - Wed, Feb 18

12:20 pm - 5:20 pm

EDI

ORD

11h 00m1 stop

6:30 pm - 10:00 am

ORD

EDI

9h 30m1 stop

$544Icelandair

Tue, Jan 27 - Sat, Jan 31

12:20 pm - 5:20 pm

EDI

ORD

11h 00m1 stop

6:30 pm - 10:00 am

ORD

EDI

9h 30m1 stop

$565Icelandair

Fri, Feb 6 - Mon, Feb 9

6:50 am - 2:00 pm

LCY

ORD

13h 10m1 stop

8:40 pm - 8:40 pm

ORD

LCY

19h 00m1 stop

$613British Airways

Mon, Mar 2 - Sun, Mar 8

9:50 am - 7:15 pm

LHR

ORD

15h 25m1 stop

3:45 pm - 9:05 am

ORD

LHR

11h 20m1 stop

$614Aer Lingus

Fri, Feb 27 - Tue, Jun 30

11:25 am - 7:15 pm

LCY

ORD

13h 50m1 stop

9:00 pm - 6:35 pm

ORD

LCY

15h 35m1 stop

$620British Airways

Sat, Feb 7 - Mon, Feb 16

7:40 am - 11:00 am

LHR

ORD

9h 20mnonstop

4:45 pm - 5:55 am

ORD

LHR

8h 10mnonstop

$620United Airlines

Thu, Jan 8 - Sun, Mar 8

Scandinavian Airlines flights from United Kingdom to Chicago

Our best Scandinavian Airlines deals on United Kingdom to Chicago flight tickets

Scandinavian Airlines

Mar 13

MAN10:10 amManchester

12h 45m

1 stop

ORD5:55 pmChicago O'Hare Intl

Mar 15

ORD8:20 pmChicago O'Hare Intl

17h 15m

1 stop

MAN6:35 pmManchester

$536

Find similar

Scandinavian Airlines

Feb 1

MAN10:10 amManchester

12h 45m

1 stop

ORD4:55 pmChicago O'Hare Intl

Mar 1

ORD7:20 pmChicago O'Hare Intl

32h 10m

1 stop

MAN9:30 amManchester

$538

Find similar

Scandinavian Airlines

Feb 1

MAN10:10 amManchester

12h 45m

1 stop

ORD4:55 pmChicago O'Hare Intl

Mar 1

ORD7:20 pmChicago O'Hare Intl

34h 55m

2 stops

MAN12:15 pmManchester

$539

Find similar

Icelandair flights from United Kingdom to Chicago

Our best Icelandair deals on United Kingdom to Chicago flight tickets

Icelandair

Feb 6

EDI12:20 pmEdinburgh Turnhouse

11h 00m

1 stop

ORD5:20 pmChicago O'Hare Intl

Feb 9

ORD6:30 pmChicago O'Hare Intl

9h 30m

1 stop

EDI10:00 amEdinburgh Turnhouse

$544

Find similar

Icelandair

Feb 6

EDI12:20 pmEdinburgh Turnhouse

11h 00m

1 stop

ORD5:20 pmChicago O'Hare Intl

Feb 9

ORD6:30 pmChicago O'Hare Intl

9h 30m

1 stop

EDI10:00 amEdinburgh Turnhouse

$565

Find similar

Icelandair

Jan 27

EDI12:20 pmEdinburgh Turnhouse

11h 00m

1 stop

ORD5:20 pmChicago O'Hare Intl

Jan 31

ORD6:30 pmChicago O'Hare Intl

9h 30m

1 stop

EDI10:00 amEdinburgh Turnhouse

$569

Find similar

momondo Fare Finder

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

ManchesterChicago

MAN - ORD

MANORD

Manchester

Fri 3/13

10:10 am-5:55 pm

1 stop12h 45m

Chicago O'Hare Intl

Sun 3/15

8:20 pm-6:35 pm

1 stop17h 15m

$536

ManchesterChicago

MAN - ORD

MANORD

Manchester

Sun 2/1

10:10 am-4:55 pm

1 stop12h 45m

Chicago O'Hare Intl

Sun 3/1

7:20 pm-9:30 am

1 stop32h 10m

$538

ManchesterChicago

MAN - ORD

MANORD

Manchester

Sun 2/1

10:10 am-4:55 pm

1 stop12h 45m

Chicago O'Hare Intl

Sun 3/1

7:20 pm-12:15 pm

2 stops34h 55m

$539

ManchesterChicago

MAN - ORD

MANORD

Manchester

Fri 2/13

10:10 am-4:45 pm

1 stop12h 35m

Chicago O'Hare Intl

Wed 2/18

7:20 pm-6:35 pm

1 stop17h 15m

$540

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Tue 1/27

12:20 pm-5:20 pm

1 stop11h 00m

Chicago O'Hare Intl

Sat 1/31

6:30 pm-10:00 am

1 stop9h 30m

$544

EdinburghChicago

EDI - ORD

EDIORD

Edinburgh Turnhouse

Fri 2/6

12:20 pm-5:20 pm

1 stop11h 00m

Chicago O'Hare Intl

Mon 2/9

6:30 pm-10:00 am

1 stop9h 30m

$565

LondonChicago

LCY - ORD

LCYORD

London City

Mon 3/2

6:50 am-2:00 pm

1 stop13h 10m

Chicago O'Hare Intl

Sun 3/8

8:40 pm-8:40 pm

1 stop19h 00m

$613

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Fri 2/27

9:50 am-7:15 pm

1 stop15h 25m

Chicago O'Hare Intl

Tue 6/30

3:45 pm-9:05 am

1 stop11h 20m

$614

LondonChicago

LCY - ORD

LCYORD

London City

Sat 2/7

11:25 am-7:15 pm

1 stop13h 50m

Chicago O'Hare Intl

Mon 2/16

9:00 pm-6:35 pm

1 stop15h 35m

$620

LondonChicago

LHR - ORD

LHRORD

London Heathrow

Thu 1/8

7:40 am-11:00 am

Nonstop9h 20m

Chicago O'Hare Intl

Sun 3/8

4:45 pm-5:55 am

Nonstop8h 10m

$620

Flights are sorted by cheapest round-trip flights first.

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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

Prices

Airlines

Delays

Other information

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 $575. 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 $582.

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 $769. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from United Kingdom to Chicago for around $880.

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 $870.

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 $727 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 $697 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?

You could potentially save up to 1% on your flight if you consider stops on a United Kingdom to Chicago flight.

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	$659
Fastest flight time	8h 25m
Direct flights	Every day
Airports in Chicago	3 airports

The best one-way flight to Chicago from United Kingdom in the past 72 hours is $659. The best round-trip flight deal from United Kingdom to Chicago found on momondo in the last 72 hours is $736.

The fastest flight from United Kingdom to Chicago takes 8h 25m

Direct flights go from United Kingdom to Chicago every day.

There are 3 airports in Chicago. From United Kingdom there are direct flights to 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?
As of December 2025, there are 11 operators available to choose from 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?
Based on momondo bookings for flights between United Kingdom and Chicago, the leading plane model is Boeing 767-300, making up 33.96% of the total bookings. Other popular models include Boeing 787-9 Dreamliner with 21.66%, Boeing 777 with 11.94%, and Boeing 787-10 Dreamliner with 10.70%.

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
Aer Lingus	PriceFrom $446	Free Cancellation	Rating 7.2 1,408 reviews	Search Aer Lingus flights
Icelandair	PriceFrom $451	Free Cancellation	Rating 7.0 592 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $468	Free Cancellation	Rating 7.4 1,617 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $485	Free Cancellation	Rating 7.4 9,102 reviews	Search United Airlines flights
Austrian Airlines	PriceFrom $530	Free Cancellation	Rating 7.6 880 reviews	Search Austrian Airlines flights
British Airways	PriceFrom $531	Free Cancellation	Rating 6.7 7,602 reviews	Search British Airways flights
TAP AIR PORTUGAL	PriceFrom $558	Free Cancellation	Rating 7.2 2,096 reviews	Search TAP AIR PORTUGAL flights
Iberia	PriceFrom $558	Free Cancellation	Rating 7.0 3,055 reviews	Search Iberia flights
American Airlines	PriceFrom $572	Free Cancellation	Rating 7.2 11,052 reviews	Search American Airlines flights
Finnair	PriceFrom $625	Free Cancellation	Rating 7.6 1,339 reviews	Search Finnair flights

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Portage

Lansing

Valparaiso

Schererville

Munster

Crown Point

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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We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to the United States

Cheap flights from the United Kingdom to Chicago from $367

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 3/3. 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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Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from the United Kingdom to Chicago

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

Recent one-way flight deals from the United Kingdom to Chicago

Recent last minute flight deals from the United Kingdom to Chicago

Recent direct flight deals from the United Kingdom to Chicago

Scandinavian Airlines flights from United Kingdom to Chicago

Our best Scandinavian Airlines deals on United Kingdom to Chicago flight tickets

Icelandair flights from United Kingdom to Chicago

Our best Icelandair deals on United Kingdom to Chicago flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Chicago that are best for you.

See travel insights to Chicago from

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

What is the cheapest month to fly to Chicago?

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

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 $870.

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?

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?

You could potentially save up to 1% on your flight if you consider stops on a United Kingdom to Chicago flight.

What is the cheapest airline that flies from United Kingdom to Chicago?

Icelandair, Delta, and SWISS are the most popular carriers operating from United Kingdom to Chicago

What airlines fly to Chicago?

How often are flights from the United Kingdom to Chicago delayed?

Historically, on average around 11% of flights between United Kingdom and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 172 minutes.

What is the most punctual flight time for the United Kingdom to Chicago flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United Kingdom to Chicago flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 5% of their flights experiencing any sort of delay.

How many flights depart from United Kingdom to Chicago on average per day?

As of December 2025, there are 40 flights per day flying from United Kingdom to Chicago. The most common time of day flights depart is 12:00PM, with 65% of flights taking off in the afternoon.

How many flights depart from United Kingdom to Chicago on average per week?

As of December 2025, there are 281 flights per week flying from United Kingdom to Chicago. The most common day of the week flights depart is Sat, with 16% of flights taking off on this day.

How long does it take to fly 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

Fastest flight time

Direct flights

Airports in Chicago

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

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?

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

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

Traveling to a place near Chicago?

Why use momondo?

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

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

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

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

An easier way to manage your Chicago trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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