Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to London from $201

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 London departing on 2/23. 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
0 bags

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Illinois to London

Cheap round-trip flights

These are some of the best round-trip flight deals from Illinois to London that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Illinois to London.

Cheap last minute flights

Planning a quick getaway from Illinois to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Illinois to London

Find recent round-trip train or bus tickets from Illinois to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
7:10 pm - 4:25 pmORD-LHR
39h 15m2 stops
6:40 am - 3:50 pmLHR-ORD
15h 10m1 stop
$374Scandinavian Airlines
Find Deal
Fri, Feb 14 - Mon, Feb 17
8:25 pm - 8:40 pmORD-LGW
18h 15m2 stops
4:35 pm - 3:30 pmLGW-ORD
28h 55m1 stop
$405TAP AIR PORTUGAL
Find Deal
Sun, Jan 19 - Tue, Jan 21
6:30 pm - 10:55 amORD-LGW
10h 25m1 stop
9:10 am - 8:13 pmLGW-ORD
41h 03m3 stops
Sun, Jan 19 - Tue, Jan 21
6:20 am - 10:35 amORD-LGW
22h 15m2 stops
9:10 am - 8:13 pmLGW-ORD
41h 03m3 stops
Sun, Jan 19 - Tue, Jan 21
5:05 pm - 9:30 amORD-LHR
10h 25m1 stop
7:25 am - 3:44 pmLHR-ORD
14h 19m1 stop
$513JetBlue
Find Deal
Thu, Jan 30 - Sun, Feb 2
7:00 am - 5:55 amORD-LHR
16h 55m1 stop
7:25 am - 3:44 pmLHR-ORD
14h 19m1 stop
$518JetBlue
Find Deal
Sat, Jan 11 - Fri, Jan 17
6:30 pm - 10:55 amORD-LGW
10h 25m1 stop
11:55 am - 5:20 pmLGW-ORD
11h 25m1 stop
$521Icelandair
Find Deal
Wed, Jan 8 - Wed, Jan 15
6:30 pm - 7:30 pmORD-LHR
19h 00m1 stop
12:15 pm - 5:20 pmLHR-ORD
11h 05m1 stop
$526Icelandair
Find Deal
Wed, Jan 8 - Wed, Jan 15
6:45 pm - 6:55 pmORD-LHR
18h 10m1 stop
6:30 am - 2:30 pmLHR-ORD
14h 00m1 stop
$551British Airways
Find Deal
Sat, Jan 18 - Mon, Jan 20
4:45 pm - 6:50 pmORD-LGW
20h 05m1 stop
11:20 am - 9:46 pmLGW-ORD
15h 26m1 stop
$635British Airways
Find Deal
Tue, Mar 4 - Tue, Mar 25
6:30 pm - 10:50 amORD-LHR
10h 20m1 stop
$201Icelandair
Find Deal
Sun, Feb 23
6:30 pm - 10:55 amORD-LGW
10h 25m1 stop
$201Icelandair
Find Deal
Sun, Feb 23
5:05 pm - 10:00 amSTL-LGW
34h 55m1 stop
Sun, Jan 12
8:25 pm - 10:35 amORD-LGW
32h 10m1 stop
Mon, Dec 9
4:45 pm - 12:50 pmORD-LHR
14h 05m1 stop
$271WestJet
Find Deal
Sun, Feb 16
7:15 pm - 11:25 amORD-LHR
34h 10m1 stop
$288TAP AIR PORTUGAL
Find Deal
Wed, Dec 4
7:15 pm - 9:50 amORD-LGW
32h 35m1 stop
$288TAP AIR PORTUGAL
Find Deal
Wed, Dec 4
7:05 pm - 4:20 pmORD-LHR
15h 15m1 stop
$292SWISS
Find Deal
Sun, Dec 1
7:05 pm - 1:00 pmORD-LHR
11h 55m1 stop
$302SWISS
Find Deal
Sun, Feb 23
4:45 pm - 12:50 pmORD-LHR
14h 05m1 stop
$318WestJet
Find Deal
Thu, Feb 20
8:20 pm - 9:35 pmORD-LHR
19h 15m1 stop
6:30 pm - 3:30 pmLHR-ORD
27h 00m1 stop
$543TAP AIR PORTUGAL
Find Deal
Fri, Nov 29 - Thu, Dec 5
8:20 pm - 9:35 pmORD-LHR
19h 15m1 stop
7:55 pm - 3:30 pmLHR-ORD
25h 35m1 stop
$553TAP AIR PORTUGAL
Find Deal
Fri, Nov 29 - Thu, Dec 5
7:05 pm - 4:20 pmORD-LHR
15h 15m1 stop
6:30 am - 1:25 pmLHR-ORD
12h 55m1 stop
Wed, Nov 27 - Wed, Dec 4
5:59 pm - 7:10 amORD-LHR
31h 11m1 stop
5:10 pm - 4:15 pmLHR-ORD
29h 05m1 stop
Sat, Nov 30 - Mon, Jan 20
5:08 pm - 9:00 amORD-LGW
33h 52m1 stop
3:00 pm - 5:42 pmLGW-ORD
32h 42m1 stop
$619British Airways
Find Deal
Tue, Nov 26 - Tue, Dec 10
5:50 pm - 7:55 amORD-LHR
8h 05mnonstop
8:55 am - 4:15 pmLHR-ORD
13h 20m1 stop
$620United Airlines
Find Deal
Tue, Nov 26 - Tue, Dec 10
7:00 am - 7:10 amORD-LHR
18h 10m2 stops
1:45 pm - 4:15 pmLHR-ORD
32h 30m1 stop
$624United Airlines
Find Deal
Tue, Nov 26 - Tue, Dec 3
11:35 am - 7:10 amORD-LHR
13h 35m1 stop
6:50 am - 2:45 pmLHR-ORD
13h 55m2 stops
$627Air Canada
Find Deal
Tue, Nov 26 - Tue, Dec 10
4:45 pm - 10:15 amORD-LGW
11h 30m1 stop
3:00 pm - 10:58 amLGW-ORD
25h 58m1 stop
$631British Airways
Find Deal
Tue, Nov 26 - Tue, Dec 10
11:35 am - 8:30 amORD-LHR
14h 55m2 stops
6:50 am - 2:45 pmLHR-ORD
13h 55m2 stops
$632Air Canada
Find Deal
Tue, Nov 26 - Tue, Dec 10
9:45 pm - 11:30 amORD-LHR
7h 45mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$572British Airways
Find Deal
Wed, Jan 8 - Wed, Jan 15
5:00 pm - 6:50 amORD-LHR
7h 50mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$611British Airways
Find Deal
Tue, Feb 11 - Tue, Feb 18
5:00 pm - 6:50 amORD-LHR
7h 50mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$623Finnair
Find Deal
Sun, Jan 12 - Tue, Jan 21
5:00 pm - 6:50 amORD-LHR
7h 50mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$625Finnair
Find Deal
Sun, Jan 12 - Tue, Jan 21
10:00 pm - 11:40 amORD-LHR
7h 40mnonstop
11:05 am - 1:45 pmLHR-ORD
8h 40mnonstop
$630Iberia
Find Deal
Wed, Jan 8 - Fri, May 2
5:50 pm - 7:55 amORD-LHR
8h 05mnonstop
1:35 pm - 5:00 pmLHR-ORD
9h 25mnonstop
$643United Airlines
Find Deal
Sun, Jan 12 - Tue, Jan 21
5:50 pm - 7:55 amORD-LHR
8h 05mnonstop
10:25 am - 1:50 pmLHR-ORD
9h 25mnonstop
$647United Airlines
Find Deal
Wed, Jan 8 - Wed, Jan 15
5:00 pm - 6:50 amORD-LHR
7h 50mnonstop
11:00 am - 1:55 pmLHR-ORD
8h 55mnonstop
$664Iberia
Find Deal
Wed, Feb 12 - Mon, Feb 17
9:45 pm - 11:30 amORD-LHR
7h 45mnonstop
11:55 am - 2:45 pmLHR-ORD
8h 50mnonstop
$783American Airlines
Find Deal
Wed, Dec 11 - Sun, Jan 12
8:30 pm - 10:20 amORD-LHR
7h 50mnonstop
2:25 pm - 5:00 pmLHR-ORD
8h 35mnonstop
$864American Airlines
Find Deal
Wed, May 21 - Sat, May 31

United Airlines flights from Illinois to London

Our best United Airlines deals on Illinois to London flight tickets
United Airlines
Nov 26
ORD9:10 pmChicago O'Hare Intl
8h 05m
LHR11:15 amLondon Heathrow
Dec 3
LHR1:45 pmLondon Heathrow
32h 30m
1 stop
ORD4:15 pmChicago O'Hare Intl
United Airlines
Dec 3
ORD9:10 pmChicago O'Hare Intl
8h 05m
LHR11:15 amLondon Heathrow
Dec 12
LHR11:10 amLondon Heathrow
13h 15m
1 stop
ORD6:25 pmChicago O'Hare Intl
United Airlines
Nov 26
ORD7:10 amChicago O'Hare Intl
18h 00m
2 stops
LHR7:10 amLondon Heathrow
Dec 3
LHR1:45 pmLondon Heathrow
32h 30m
1 stop
ORD4:15 pmChicago O'Hare Intl

Icelandair flights from Illinois to London

Our best Icelandair deals on Illinois to London flight tickets
Icelandair
Jan 8
ORD6:30 pmChicago O'Hare Intl
10h 25m
1 stop
LGW10:55 amLondon Gatwick
Jan 15
LGW11:55 amLondon Gatwick
11h 25m
1 stop
ORD5:20 pmChicago O'Hare Intl
Icelandair
Jan 8
ORD6:30 pmChicago O'Hare Intl
19h 00m
1 stop
LHR7:30 pmLondon Heathrow
Jan 15
LHR12:15 pmLondon Heathrow
11h 05m
1 stop
ORD5:20 pmChicago O'Hare Intl
Icelandair
Jan 8
ORD6:30 pmChicago O'Hare Intl
19h 00m
1 stop
LHR7:30 pmLondon Heathrow
Jan 15
LHR12:15 pmLondon Heathrow
11h 05m
1 stop
ORD5:20 pmChicago O'Hare Intl

See travel insights to London from

How to get the cheapest flight ticket from Illinois to London

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 London?

The cheapest month to fly to London from Illinois is in February. Flight prices, which tend to average around $629, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Illinois averaging around $650.

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

The cheapest day to depart from Illinois to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $713. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $787. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Illinois in the evening is the least expensive time of day to depart. momondo users have found prices as low as $729 when looking at flights departing in the evening. Flights to London are more costly in the afternoon, with an average ticket price of $769. 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 London flight route?

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

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

Most flyers found that booking tickets 59 days in advance of their planned departure date is the best time to get cheap flights to London. During this timeframe, flight prices are around $752. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $654.

What cabin class options are available on Illinois to London flights?

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

You could potentially save up to 46% on your flight if you consider stops on a Illinois to London flight.

Cheap Illinois to London flight deals and tips

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

Best Price Found

$201

Fastest flight time

7h 35m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in London

4 airports
The best one-way flight to London from Illinois in the past 72 hours is $201. The best round-trip flight deal from Illinois to London found on momondo in the last 72 hours is $374.
The fastest flight from Illinois to London takes 7h 35m
Direct flights go from Illinois to London on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. Airlines offering direct flights are: Finnair, Iberia and British Airways.
There are 4 airports near London: London City (LCY), London Heathrow (LHR), London Stansted (STN), London Gatwick (LGW)

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

    Prices for flights from Illinois to London were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to London.

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

    The travel and health documents you'll need for your trip to London 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 London. 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 Illinois to London?


Best airlines flying from Illinois to London

Compare and see reviews for airlines that fly from Illinois to London with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $382Free CancellationRating
7.3
1,293 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $451Free CancellationRating
8.0
8,734 reviews
Search Delta flights
IcelandairPriceFrom $472Free CancellationRating
7.1
544 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $506Free CancellationRating
7.1
1,883 reviews
Search TAP AIR PORTUGAL flights
Air CanadaPriceFrom $554Free CancellationRating
7.0
8,267 reviews
Search Air Canada flights
FinnairPriceFrom $565Free CancellationRating
7.6
1,298 reviews
Search Finnair flights
Virgin AtlanticPriceFrom $571Free CancellationRating
7.5
662 reviews
Search Virgin Atlantic flights
SWISSPriceFrom $581Free CancellationRating
7.6
1,634 reviews
Search SWISS flights
IberiaPriceFrom $583Free CancellationRating
7.0
2,665 reviews
Search Iberia flights
British AirwaysPriceFrom $588Free CancellationRating
6.6
6,828 reviews
Search British Airways flights

Why use momondo?

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

Finding the right flight to London 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 London quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to London 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 London?

momondo helps you find the best flight between Illinois and London 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 London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.


An easier way to manage your London 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.
1 adult
From?
To?
Sat 11/30
Sat 12/7
Email me momondo's favorite deals

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London