Cheap flights from Illinois to London from £307

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 15/6. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
22:25 - 20:55
ORD
-
LTN
16h 30m
2 stops
Multiple Airlines Logo
15:15 - 18:15
LTN
-
ORD
33h 00m
2 stops
£610Multiple Airlines
Mon, 10 Aug - Fri, 21 Aug
Multiple Airlines Logo
09:55 - 21:15
ORD
-
LTN
29h 20m
3 stops
Multiple Airlines Logo
08:00 - 12:40
LTN
-
ORD
34h 40m
2 stops
£613Multiple Airlines
Wed, 17 Jun - Wed, 24 Jun
Multiple Airlines Logo
18:30 - 17:00
ORD
-
LTN
16h 30m
2 stops
Multiple Airlines Logo
07:45 - 17:20
LTN
-
ORD
15h 35m
2 stops
£615Multiple Airlines
Sun, 1 Nov - Tue, 17 Nov
Multiple Airlines Logo
09:55 - 21:15
ORD
-
LTN
29h 20m
3 stops
Multiple Airlines Logo
09:40 - 22:05
LTN
-
ORD
18h 25m
2 stops
£619Multiple Airlines
Wed, 17 Jun - Tue, 23 Jun
Multiple Airlines Logo
22:25 - 22:20
ORD
-
LTN
17h 55m
2 stops
Multiple Airlines Logo
21:50 - 11:50
LTN
-
ORD
20h 00m
1 stop
£620Multiple Airlines
Sun, 20 Sep - Wed, 30 Sep
Multiple Airlines Logo
19:25 - 22:20
ORD
-
LTN
20h 55m
2 stops
Multiple Airlines Logo
12:45 - 14:00
LTN
-
ORD
31h 15m
2 stops
£622Multiple Airlines
Sun, 20 Sep - Wed, 30 Sep
Multiple Airlines Logo
09:55 - 15:25
ORD
-
LTN
23h 30m
3 stops
Multiple Airlines Logo
17:50 - 11:50
LTN
-
ORD
24h 00m
1 stop
£626Multiple Airlines
Wed, 3 Jun - Wed, 10 Jun
Multiple Airlines Logo
10:43 - 13:25
ORD
-
LTN
20h 42m
3 stops
Multiple Airlines Logo
15:45 - 16:59
LTN
-
ORD
31h 14m
3 stops
£627Multiple Airlines
Tue, 9 Jun - Tue, 16 Jun
Multiple Airlines Logo
15:50 - 12:45
ORD
-
LTN
14h 55m
2 stops
Multiple Airlines Logo
17:30 - 16:00
LTN
-
ORD
28h 30m
2 stops
£628Multiple Airlines
Mon, 25 May - Thu, 4 Jun
Multiple Airlines Logo
21:00 - 19:50
ORD
-
LTN
16h 50m
3 stops
Multiple Airlines Logo
15:15 - 18:15
LTN
-
ORD
33h 00m
2 stops
£628Multiple Airlines
Wed, 2 Sep - Tue, 8 Sep

momondo Fare Finder

 
Customise your flight search to find flights from Illinois to London Luton 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 279,928 searches. Data last updated 15 May 2026.
Use the filters below to find and compare flights from Illinois to London Luton Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 10/8

22:25-20:55

2 stops16h 30m

London Luton

Fri 21/8

15:15-18:15

2 stops33h 00m

£610

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 17/6

09:55-21:15

3 stops29h 20m

London Luton

Wed 24/6

08:00-12:40

2 stops34h 40m

£613
Fastest return journey

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 1/11

18:30-17:00

2 stops16h 30m

London Luton

Tue 17/11

07:45-17:20

2 stops15h 35m

£615

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 17/6

09:55-21:15

3 stops29h 20m

London Luton

Tue 23/6

09:40-22:05

2 stops18h 25m

£619

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 20/9

22:25-22:20

2 stops17h 55m

London Luton

Wed 30/9

21:50-11:50

1 stop20h 00m

£620

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 20/9

19:25-22:20

2 stops20h 55m

London Luton

Wed 30/9

12:45-14:00

2 stops31h 15m

£622

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 3/6

09:55-15:25

3 stops23h 30m

London Luton

Wed 10/6

17:50-11:50

1 stop24h 00m

£626

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 9/6

10:43-13:25

3 stops20h 42m

London Luton

Tue 16/6

15:45-16:59

3 stops31h 14m

£627

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 25/5

15:50-12:45

2 stops14h 55m

London Luton

Thu 4/6

17:30-16:00

2 stops28h 30m

£628

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 2/9

21:00-19:50

3 stops16h 50m

London Luton

Tue 8/9

15:15-18:15

2 stops33h 00m

£628

Flights are sorted by cheapest return 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 Luton 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

How long does it take to fly to London Luton Airport?

If you’re flying from a popular airport in Illinois, such as Chicago or Peoria, and flying into London Luton Airport, then you can expect flight times to average 9h 30m and 10h 30m, respectively.

Cheap Illinois to London Luton Airport flight deals and tips

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

Fastest flight time

14h 32m

Direct flights

None
The fastest flight from Illinois to London Luton Airport takes 14h 32m
There are no direct flights from Illinois to London Luton Airport. There are no popular flight routes from Illinois to London Luton Airport.

Frequently asked questions about flying from Illinois to London Luton Airport

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

    Prices for flights from Illinois to London Luton Airport refresh daily.

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

    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 London Luton Airport.

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

    The travel and health documents required for your trip to London Luton Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Luton Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Wembley
Slough
Maidstone
Ipswich
Southend-on-Sea
Canterbury
Ilford
Hayes
Guildford
Folkestone
Chelmsford
Dover
Bedford
Chichester
Harlow
Colchester

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to London . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to London 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 London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to London.

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

Of course. momondo tracks the price of Illinois to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London Luton Airport trip

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