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Cheap flights from Illinois to London from $357

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 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
SWISS Logo
6:50 pm - 12:55 pm
ORD
-
LCY
12h 05m
1 stop
SWISS Logo
9:20 am - 4:20 pm
LCY
-
ORD
13h 00m
1 stop
$587SWISS
Wed, Feb 18 - Wed, Feb 25
SWISS Logo
6:50 pm - 12:55 pm
ORD
-
LCY
12h 05m
1 stop
SWISS Logo
9:15 am - 4:20 pm
LCY
-
ORD
13h 05m
1 stop
$590SWISS
Wed, Feb 18 - Tue, Feb 24
Multiple Airlines Logo
4:05 pm - 5:40 pm
STL
-
LCY
19h 35m
2 stops
Multiple Airlines Logo
9:50 am - 3:29 pm
LCY
-
STL
35h 39m
2 stops
$686Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
Lufthansa Logo
3:30 pm - 5:55 pm
STL
-
LCY
20h 25m
1 stop
Lufthansa Logo
9:15 am - 9:08 pm
LCY
-
STL
41h 53m
2 stops
$703Lufthansa
Sun, May 3 - Tue, May 12
Lufthansa Logo
3:30 pm - 5:55 pm
STL
-
LCY
20h 25m
1 stop
Lufthansa Logo
9:15 am - 1:25 pm
LCY
-
STL
34h 10m
1 stop
$713Lufthansa
Sun, May 3 - Thu, May 14
Multiple Airlines Logo
4:05 pm - 5:55 pm
STL
-
LCY
43h 50m
2 stops
Multiple Airlines Logo
6:30 pm - 3:24 pm
LCY
-
STL
26h 54m
2 stops
$727Multiple Airlines
Mon, Apr 20 - Mon, Apr 27
British Airways Logo
9:33 am - 2:35 pm
STL
-
LCY
23h 02m
2 stops
British Airways Logo
7:15 pm - 11:04 pm
LCY
-
STL
33h 49m
2 stops
$748British Airways
Mon, Feb 2 - Mon, Feb 16
Delta Logo
6:32 am - 4:40 pm
STL
-
LCY
28h 08m
2 stops
Delta Logo
9:20 am - 11:01 pm
LCY
-
STL
19h 41m
2 stops
$759Delta
Wed, May 6 - Wed, May 13
Delta Logo
5:59 pm - 4:40 pm
STL
-
LCY
40h 41m
2 stops
Delta Logo
9:20 am - 8:31 pm
LCY
-
STL
17h 11m
2 stops
$765Delta
Tue, May 5 - Thu, May 14
British Airways Logo
7:02 pm - 2:35 pm
PIA
-
LCY
38h 33m
2 stops
British Airways Logo
7:15 pm - 11:25 pm
LCY
-
PIA
33h 10m
2 stops
$819British Airways
Sun, Mar 8 - Sun, Mar 15

British Airways flights from Illinois to London City Airport

Our best British Airways deals on Illinois to London City Airport flight tickets
British Airways
Feb 2
STL9:33 amLambert-St Louis
23h 02m
2 stops
LCY2:35 pmLondon City
Feb 16
LCY7:15 pmLondon City
33h 49m
2 stops
STL11:04 pmLambert-St Louis
$748
British Airways
May 4
STL6:00 amLambert-St Louis
44h 35m
2 stops
LCY8:35 amLondon City
May 12
LCY7:15 pmLondon City
34h 33m
2 stops
STL11:48 pmLambert-St Louis
$780
British Airways
Mar 8
PIA7:02 pmGreater Peoria
38h 33m
2 stops
LCY2:35 pmLondon City
Mar 15
LCY7:15 pmLondon City
33h 10m
2 stops
PIA11:25 pmGreater Peoria
$819

SWISS flights from Illinois to London City Airport

Our best SWISS deals on Illinois to London City Airport flight tickets
SWISS
Feb 18
ORD6:50 pmChicago O'Hare Intl
12h 05m
1 stop
LCY12:55 pmLondon City
Feb 25
LCY9:20 amLondon City
13h 00m
1 stop
ORD4:20 pmChicago O'Hare Intl
$587
SWISS
Feb 18
ORD6:50 pmChicago O'Hare Intl
12h 05m
1 stop
LCY12:55 pmLondon City
Feb 24
LCY9:15 amLondon City
13h 05m
1 stop
ORD4:20 pmChicago O'Hare Intl
$590
SWISS
Feb 18
ORD6:50 pmChicago O'Hare Intl
12h 05m
1 stop
LCY12:55 pmLondon City
Feb 25
LCY9:20 amLondon City
13h 00m
1 stop
ORD4:20 pmChicago O'Hare Intl
$591

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to London City Airport 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 January 23, 2026.
Use the filters below to find and compare flights from Illinois to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Wed 2/18

6:50 pm-12:55 pm

1 stop12h 05m

London City

Wed 2/25

9:20 am-4:20 pm

1 stop13h 00m

$587

ChicagoLondon

ORD - LCY

ORDLCY

Chicago O'Hare Intl

Wed 2/18

6:50 pm-12:55 pm

1 stop12h 05m

London City

Tue 2/24

9:15 am-4:20 pm

1 stop13h 05m

$590

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 2/18

4:05 pm-5:40 pm

2 stops19h 35m

London City

Wed 2/25

9:50 am-3:29 pm

2 stops35h 39m

$686

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Sun 5/3

3:30 pm-5:55 pm

1 stop20h 25m

London City

Tue 5/12

9:15 am-9:08 pm

2 stops41h 53m

$703

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Sun 5/3

3:30 pm-5:55 pm

1 stop20h 25m

London City

Thu 5/14

9:15 am-1:25 pm

1 stop34h 10m

$713

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Mon 4/20

4:05 pm-5:55 pm

2 stops43h 50m

London City

Mon 4/27

6:30 pm-3:24 pm

2 stops26h 54m

$727

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Mon 2/2

9:33 am-2:35 pm

2 stops23h 02m

London City

Mon 2/16

7:15 pm-11:04 pm

2 stops33h 49m

$748

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 5/6

6:32 am-4:40 pm

2 stops28h 08m

London City

Wed 5/13

9:20 am-11:01 pm

2 stops19h 41m

$759

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Tue 5/5

5:59 pm-4:40 pm

2 stops40h 41m

London City

Thu 5/14

9:20 am-8:31 pm

2 stops17h 11m

$765

PeoriaLondon

PIA - LCY

PIALCY

Greater Peoria

Sun 3/8

7:02 pm-2:35 pm

2 stops38h 33m

London City

Sun 3/15

7:15 pm-11:25 pm

2 stops33h 10m

$819

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 London from

How to get the cheapest flight ticket from Illinois to London City Airport

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 airline that flies from Illinois to London City?

Iberia, SWISS, and Lufthansa are the most popular carriers operating from Illinois to London City

What airlines fly to London City Airport?

KLM, Delta and Virgin Atlantic are the top three most popular airlines that fly to London City Airport from Illinois according to our data. KLM is the first choice among our users, with 47% of people opting to fly with this airline when traveling to London City Airport. Keep in mind that there are 4 different airlines that fly to London City Airport on a routine basis, so you have a few additional options to choose from.

Cheap Illinois to London City Airport flight deals and tips

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

Fastest flight time

10h 00m

Direct flights

None
The fastest flight from Illinois to London City Airport takes 10h 00m
There are no direct flights from Illinois to London City Airport. There are no popular flight routes from Illinois to London City Airport.
Search flight deals

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

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

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

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

    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 City Airport.

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

    The travel and health documents you'll need for your trip to London City Airport 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 City Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to London City Airport

Compare and see reviews for airlines that fly from Illinois to London City Airport with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom $730Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $730Free CancellationRating
7.9
8,096 reviews
Search Delta flights
KLMPriceFrom $740Free CancellationRating
7.7
1,442 reviews
Search KLM flights
SWISSPriceFrom $757Free CancellationRating
7.5
1,856 reviews
Search SWISS flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Luton
Milton Keynes
Dover
Slough
Guildford
Wembley
Crawley
Dartford
Hayes
Brentwood
Watford
Cobham
Folkestone
Romford
Stansted
Harrow
Croydon
Richmond

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to London. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Illinois to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to London?

momondo provides multiple filters to help you find the best flight to London from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

An easier way to manage your London City Airport trip

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