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Cheap flights from Illinois to the United Kingdom from $271

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 7/29. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to the United Kingdom

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:45 am - 10:10 am
ORD
-
EDI
16h 25m
1 stop
Multiple Airlines Logo
8:30 pm - 9:35 pm
EDI
-
ORD
31h 05m
2 stops
$684Multiple Airlines
Sun, Sep 6 - Thu, Sep 10
Multiple Airlines Logo
11:45 am - 10:10 am
ORD
-
EDI
16h 25m
1 stop
Multiple Airlines Logo
8:30 pm - 9:35 pm
EDI
-
ORD
31h 05m
2 stops
$686Multiple Airlines
Wed, Sep 2 - Thu, Sep 10
Multiple Airlines Logo
11:45 am - 10:10 am
ORD
-
EDI
16h 25m
1 stop
Multiple Airlines Logo
8:30 pm - 9:35 pm
EDI
-
ORD
31h 05m
2 stops
$707Multiple Airlines
Mon, Sep 14 - Wed, Sep 23
Scandinavian Airlines Logo
8:15 pm - 6:25 pm
ORD
-
EDI
17h 10m
1 stop
Scandinavian Airlines Logo
10:20 am - 4:45 pm
EDI
-
ORD
36h 25m
2 stops
$717Scandinavian Airlines
Fri, Oct 30 - Sun, Nov 1
Scandinavian Airlines Logo
7:15 pm - 6:25 pm
ORD
-
EDI
17h 10m
1 stop
Scandinavian Airlines Logo
7:10 pm - 4:45 pm
EDI
-
ORD
27h 35m
1 stop
$730Scandinavian Airlines
Mon, Nov 16 - Fri, Nov 20
Delta Logo
7:00 am - 6:45 am
ORD
-
LHR
17h 45m
1 stop
Delta Logo
9:55 am - 8:24 pm
LHR
-
ORD
16h 29m
2 stops
$917Delta
Mon, Oct 12 - Mon, Oct 19
Delta Logo
4:52 pm - 1:05 pm
MDW
-
LHR
14h 13m
1 stop
Delta Logo
6:30 am - 6:11 pm
LHR
-
MDW
17h 41m
2 stops
$917Delta
Sat, Sep 5 - Tue, Sep 15
Icelandair Logo
7:25 pm - 11:45 am
ORD
-
LGW
10h 20m
1 stop
Icelandair Logo
3:40 pm - 9:25 pm
LGW
-
ORD
11h 45m
1 stop
$917Icelandair
Sat, Aug 1 - Fri, Aug 14
TAP AIR PORTUGAL Logo
6:00 pm - 12:45 pm
ORD
-
LHR
12h 45m
1 stop
TAP AIR PORTUGAL Logo
6:45 pm - 12:40 pm
LHR
-
ORD
23h 55m
1 stop
$918TAP AIR PORTUGAL
Fri, Jul 17 - Wed, Jul 22
Icelandair Logo
10:25 pm - 11:45 am
ORD
-
LGW
31h 20m
1 stop
Icelandair Logo
3:40 pm - 6:15 pm
LGW
-
ORD
32h 35m
1 stop
$921Icelandair
Fri, Sep 4 - Thu, Sep 17

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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
Sep 18
MDW1:00 pmChicago Midway
15h 20m
2 stops
LHR10:20 amLondon Heathrow
Sep 23
LHR9:55 amLondon Heathrow
18h 30m
2 stops
MDW10:25 pmChicago Midway
$920
Virgin Atlantic
Oct 8
MDW10:35 amChicago Midway
14h 10m
2 stops
LHR6:45 amLondon Heathrow
Oct 22
LHR6:30 amLondon Heathrow
18h 07m
2 stops
MDW6:37 pmChicago Midway
$921
Virgin Atlantic
Sep 4
MDW1:27 pmChicago Midway
11h 43m
1 stop
LHR7:10 amLondon Heathrow
Sep 18
LHR3:15 pmLondon Heathrow
13h 10m
1 stop
MDW10:25 pmChicago Midway
$922

British Airways flights from Illinois to United Kingdom

Our best British Airways deals on Illinois to United Kingdom flight tickets
British Airways
Sep 13
ORD3:50 pmChicago O'Hare Intl
10h 10m
1 stop
LHR8:00 amLondon Heathrow
Sep 19
LHR9:45 amLondon Heathrow
8h 45m
ORD12:30 pmChicago O'Hare Intl
$920
British Airways
Sep 2
ORD7:05 pmChicago O'Hare Intl
8h 00m
LHR9:05 amLondon Heathrow
Sep 16
LHR11:10 amLondon Heathrow
8h 40m
ORD1:50 pmChicago O'Hare Intl
$922
British Airways
Sep 12
ORD9:15 pmChicago O'Hare Intl
8h 00m
LHR11:15 amLondon Heathrow
Sep 23
LHR11:10 amLondon Heathrow
8h 40m
ORD1:50 pmChicago O'Hare Intl
$931

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated June 9, 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 round-trip

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Sun 9/6

11:45 am-10:10 am

1 stop16h 25m

Edinburgh Turnhouse

Thu 9/10

8:30 pm-9:35 pm

2 stops31h 05m

$684

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Wed 9/2

11:45 am-10:10 am

1 stop16h 25m

Edinburgh Turnhouse

Thu 9/10

8:30 pm-9:35 pm

2 stops31h 05m

$686

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Mon 9/14

11:45 am-10:10 am

1 stop16h 25m

Edinburgh Turnhouse

Wed 9/23

8:30 pm-9:35 pm

2 stops31h 05m

$707

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Fri 10/30

8:15 pm-6:25 pm

1 stop17h 10m

Edinburgh Turnhouse

Sun 11/1

10:20 am-4:45 pm

2 stops36h 25m

$717

ChicagoEdinburgh

ORD - EDI

ORDEDI

Chicago O'Hare Intl

Mon 11/16

7:15 pm-6:25 pm

1 stop17h 10m

Edinburgh Turnhouse

Fri 11/20

7:10 pm-4:45 pm

1 stop27h 35m

$730

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Mon 10/12

7:00 am-6:45 am

1 stop17h 45m

London Heathrow

Mon 10/19

9:55 am-8:24 pm

2 stops16h 29m

$917

ChicagoLondon

MDW - LHR

MDWLHR

Chicago Midway

Sat 9/5

4:52 pm-1:05 pm

1 stop14h 13m

London Heathrow

Tue 9/15

6:30 am-6:11 pm

2 stops17h 41m

$917
Quickest round-trip

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sat 8/1

7:25 pm-11:45 am

1 stop10h 20m

London Gatwick

Fri 8/14

3:40 pm-9:25 pm

1 stop11h 45m

$917

ChicagoLondon

ORD - LHR

ORDLHR

Chicago O'Hare Intl

Fri 7/17

6:00 pm-12:45 pm

1 stop12h 45m

London Heathrow

Wed 7/22

6:45 pm-12:40 pm

1 stop23h 55m

$918

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Fri 9/4

10:25 pm-11:45 am

1 stop31h 20m

London Gatwick

Thu 9/17

3:40 pm-6:15 pm

1 stop32h 35m

$921

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 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?

In general, October is the cheapest month to fly from Illinois to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $691. If you aren’t able to travel to United Kingdom during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $696.

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 Tuesday when prices can be found for as low as $797. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $1,015.

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

According to our data, the cheapest time of day to fly to United Kingdom is in the evening. momondo users have found flights departing from Illinois to United Kingdom in the evening for as low as $884. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the afternoon, with an average ticket price of $897. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 week ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $810 when searching week out. 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 $702 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 13% 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

$503

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 $503. The best round-trip flight deal from Illinois to United Kingdom found on momondo in the last 72 hours is $1,092.
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 updated daily.

  • 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
JetBluePriceFrom $51Free CancellationRating
7.1
2,980 reviews
Search JetBlue flights
Scandinavian AirlinesPriceFrom $321Free CancellationRating
7.4
1,815 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom $428Free CancellationRating
7.2
2,274 reviews
Search TAP AIR PORTUGAL flights
SWISSPriceFrom $458Free CancellationRating
7.5
1,968 reviews
Search SWISS flights
IcelandairPriceFrom $465Free CancellationRating
7.0
670 reviews
Search Icelandair flights
DeltaPriceFrom $468Free CancellationRating
7.9
8,393 reviews
Search Delta flights
FinnairPriceFrom $516Free CancellationRating
7.7
1,405 reviews
Search Finnair flights
Alaska AirlinesPriceFrom $522Free CancellationRating
7.9
12,482 reviews
Search Alaska Airlines flights
British AirwaysPriceFrom $526Free CancellationRating
6.7
8,035 reviews
Search British Airways flights
Air EuropaPriceFrom $533Free CancellationRating
7.0
618 reviews
Search Air Europa flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to United Kingdom for you.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United Kingdom from Illinois.

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

Price alerts on flights to United Kingdom from Illinois 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.

An easier way to manage your United Kingdom trip

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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
Flights to Londonfrom $394
Flights to Manchesterfrom $409
Flights to Edinburghfrom $465
Flights to Glasgowfrom $526
Flights to Birminghamfrom $502
Flights to Newcastle upon Tynefrom $776
Flights to Belfastfrom $688
Flights to Bristolfrom $746
Flights to Invernessfrom $711
Flights to Liverpoolfrom $649
Flights to Leedsfrom $648
Flights to Aberdeenfrom $719