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Cheap flights from Illinois to the United Kingdom from £191

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to the United Kingdom departing on 9/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Illinois to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:45 - 10:10
ORD
-
EDI
16h 25m
1 stop
Multiple Airlines Logo
20:30 - 21:35
EDI
-
ORD
31h 05m
2 stops
£511Multiple Airlines
일, 6 9월 - 목, 10 9월
Multiple Airlines Logo
11:45 - 10:10
ORD
-
EDI
16h 25m
1 stop
Multiple Airlines Logo
20:30 - 21:35
EDI
-
ORD
31h 05m
2 stops
£513Multiple Airlines
수, 2 9월 - 목, 10 9월
Scandinavian Airlines Logo
20:15 - 18:25
ORD
-
EDI
17h 10m
1 stop
Scandinavian Airlines Logo
10:20 - 16:45
EDI
-
ORD
36h 25m
2 stops
£536Scandinavian Airlines
금, 30 10월 - 일, 1 11월
Scandinavian Airlines Logo
19:15 - 18:25
ORD
-
EDI
17h 10m
1 stop
Scandinavian Airlines Logo
19:10 - 16:45
EDI
-
ORD
27h 35m
1 stop
£546Scandinavian Airlines
월, 16 11월 - 금, 20 11월
Delta Logo
07:00 - 06:45
ORD
-
LHR
17h 45m
1 stop
Delta Logo
09:55 - 20:24
LHR
-
ORD
16h 29m
2 stops
£686Delta
월, 12 10월 - 월, 19 10월
KLM Logo
10:56 - 06:25
MDW
-
LHR
13h 29m
1 stop
KLM Logo
08:40 - 18:05
LHR
-
MDW
15h 25m
2 stops
£686KLM
토, 5 9월 - 화, 8 9월
Icelandair Logo
19:25 - 11:45
ORD
-
LGW
10h 20m
1 stop
Icelandair Logo
15:40 - 21:25
LGW
-
ORD
11h 45m
1 stop
£686Icelandair
토, 1 8월 - 금, 14 8월
Icelandair Logo
22:25 - 11:45
ORD
-
LGW
31h 20m
1 stop
Icelandair Logo
15:40 - 18:15
LGW
-
ORD
32h 35m
1 stop
£689Icelandair
금, 4 9월 - 목, 17 9월
Delta Logo
12:46 - 06:25
MDW
-
LHR
11h 39m
1 stop
Delta Logo
06:30 - 16:50
LHR
-
MDW
16h 20m
2 stops
£690Delta
화, 18 8월 - 일, 15 11월
KLM Logo
16:20 - 08:50
ORD
-
LCY
10h 30m
1 stop
KLM Logo
09:20 - 14:15
LCY
-
ORD
10h 55m
1 stop
£701KLM
목, 20 8월 - 목, 3 9월

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Virgin Atlantic flights from Illinois to United Kingdom

Our best Virgin Atlantic deals on Illinois to United Kingdom flight tickets
Virgin Atlantic
18 Sept
MDW13:00Chicago Midway
15h 20m
2 stops
LHR10:20London Heathrow
23 Sept
LHR09:55London Heathrow
18h 30m
2 stops
MDW22:25Chicago Midway
£688
Virgin Atlantic
8 Oct
MDW10:35Chicago Midway
14h 10m
2 stops
LHR06:45London Heathrow
22 Oct
LHR06:30London Heathrow
18h 07m
2 stops
MDW18:37Chicago Midway
£689
Virgin Atlantic
4 Sept
MDW13:27Chicago Midway
11h 43m
1 stop
LHR07:10London Heathrow
18 Sept
LHR15:15London Heathrow
13h 10m
1 stop
MDW22:25Chicago Midway
£689

ITA Airways flights from Illinois to United Kingdom

Our best ITA Airways deals on Illinois to United Kingdom flight tickets
ITA Airways
2 Sept
ORD15:00Chicago O'Hare Intl
18h 40m
1 stop
LHR15:40London Heathrow
14 Sept
LHR16:30London Heathrow
26h 40m
1 stop
ORD13:10Chicago O'Hare Intl
£689
ITA Airways
26 Aug
ORD15:00Chicago O'Hare Intl
16h 10m
2 stops
LCY13:10London City
9 Sept
LCY06:45London City
36h 25m
2 stops
ORD13:10Chicago O'Hare Intl
£711

momondo Fare Finder

 
Customise your flight search to find flights from Illinois to United Kingdom 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 279,928 searches. Data last updated 10 6월 2026.
Use the filters below to find and compare flights from Illinois to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

일 6/9

11:45-10:10

1 stop16h 25m

Edinburgh Turnhouse

목 10/9

20:30-21:35

2 stops31h 05m

£511

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

수 2/9

11:45-10:10

1 stop16h 25m

Edinburgh Turnhouse

목 10/9

20:30-21:35

2 stops31h 05m

£513

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

금 30/10

20:15-18:25

1 stop17h 10m

Edinburgh Turnhouse

일 1/11

10:20-16:45

2 stops36h 25m

£536

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

월 16/11

19:15-18:25

1 stop17h 10m

Edinburgh Turnhouse

금 20/11

19:10-16:45

1 stop27h 35m

£546

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

월 12/10

07:00-06:45

1 stop17h 45m

London Heathrow

월 19/10

09:55-20:24

2 stops16h 29m

£686

ChicagoLondon

MDW - LHR

MDWLHR

Chicago Midway

토 5/9

10:56-06:25

1 stop13h 29m

London Heathrow

화 8/9

08:40-18:05

2 stops15h 25m

£686

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

토 1/8

19:25-11:45

1 stop10h 20m

London Gatwick

금 14/8

15:40-21:25

1 stop11h 45m

£686

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

금 4/9

22:25-11:45

1 stop31h 20m

London Gatwick

목 17/9

15:40-18:15

1 stop32h 35m

£689

ChicagoLondon

MDW - LHR

MDWLHR

Chicago Midway

화 18/8

12:46-06:25

1 stop11h 39m

London Heathrow

일 15/11

06:30-16:50

2 stops16h 20m

£690
Fastest return journey

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

목 20/8

16:20-08:50

1 stop10h 30m

London City

목 3/9

09:20-14:15

1 stop10h 55m

£701

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to the United Kingdom from

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

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 United Kingdom?

The cheapest month to fly to United Kingdom from Illinois is in October. Flight prices, which tend to average around £517, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of October, then departing from Illinois during the month January is also very affordable. Most momondo users find prices during this month for around £520.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Illinois to United Kingdom is on a Sunday. Travellers who choose to depart for United Kingdom on a Sunday will often find tickets for as low as £535. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to United Kingdom for around £776.

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

The cheapest time of day to fly to United Kingdom is in the evening when flights can be purchased for as low as £624. Try not to purchase tickets in the afternoon because they tend to be around £746. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Illinois to United Kingdom flight route?

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

How far in advance should I book a flight from Illinois to the United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £608 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Illinois for as low as £537 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to United Kingdom 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 Illinois to United Kingdom flights?

You could potentially save up to 34% on your flight if you consider stops on a Illinois to United Kingdom flight.

Cheap Illinois to United Kingdom flight deals and tips

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

Best price found

£417

Fastest flight time

7h 40m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from Illinois in the past 72 hours is £417. The best return flight deal from Illinois to United Kingdom found on momondo in the last 72 hours is £905.
The fastest flight from Illinois to United Kingdom takes 7h 40m
Direct flights go from Illinois to United Kingdom every day.
There are 1,286 airports in United Kingdom. From Illinois there are direct flights to London Heathrow (LHR), Edinburgh Turnhouse (EDI).
Search flight deals

Frequently asked questions about flying from Illinois to the United Kingdom

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

    Prices for flights from Illinois to United Kingdom are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The required travel and health documents for your United Kingdom trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Illinois to United Kingdom

Compare and see reviews for airlines that fly from Illinois to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom £343Free CancellationRating
7.3
1,599 reviews
Search Aer Lingus flights
LufthansaPriceFrom £360Free CancellationRating
6.8
8,052 reviews
Search Lufthansa flights
American AirlinesPriceFrom £387Free CancellationRating
7.1
11,640 reviews
Search American Airlines flights
British AirwaysPriceFrom £414Free CancellationRating
6.7
8,035 reviews
Search British Airways flights
United AirlinesPriceFrom £510Free CancellationRating
7.4
9,801 reviews
Search United Airlines flights
IberiaPriceFrom £521Free CancellationRating
7.0
3,232 reviews
Search Iberia flights
JetBluePriceFrom £700Free CancellationRating
7.1
2,980 reviews
Search JetBlue flights

Why use momondo?

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

Finding the right flight to United Kingdom from Illinois 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 United Kingdom quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to United Kingdom from Illinois which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Illinois and United Kingdom by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to United Kingdom, momondo offers a useful price alert feature which will track prices for flights to United Kingdom from Illinois and alert you when they change.

An easier way to manage your United Kingdom trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
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Find better results for your trip to the United Kingdom

Popular Cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
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Flights to Liverpoolfrom £29
Flights to Aberdeenfrom £63
Flights to Leedsfrom £64
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