Cheap flights from Illinois to London from £175

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 27/9. 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

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19:15 - 21:25ORD-LTN
20h 10m2 stops
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13:10 - 16:45LTN-ORD
33h 35m2 stops
Mon, 20 Oct - Sun, 2 Nov
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15:45 - 09:25ORD-LTN
11h 40m1 stop
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13:10 - 19:00LTN-ORD
11h 50m1 stop
Tue, 16 Sep - Tue, 23 Sep
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15:45 - 09:25ORD-LTN
11h 40m1 stop
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10:00 - 19:00LTN-ORD
15h 00m1 stop
Tue, 2 Sep - Tue, 9 Sep
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08:40 - 09:15ORD-LTN
18h 35m2 stops
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19:05 - 15:55LTN-ORD
26h 50m2 stops
Sun, 14 Sep - Tue, 23 Sep
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10:40 - 09:15ORD-LTN
16h 35m2 stops
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15:05 - 15:55LTN-ORD
30h 50m2 stops
Sun, 7 Sep - Mon, 15 Sep
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10:40 - 12:20ORD-LTN
19h 40m2 stops
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07:00 - 19:29LTN-ORD
18h 29m2 stops
Wed, 1 Oct - Wed, 8 Oct
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08:40 - 09:15ORD-LTN
18h 35m2 stops
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19:05 - 15:55LTN-ORD
26h 50m2 stops
Tue, 2 Sep - Tue, 9 Sep
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10:40 - 09:15ORD-LTN
16h 35m2 stops
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19:00 - 14:55LTN-ORD
25h 55m2 stops
Wed, 3 Sep - Wed, 10 Sep
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15:45 - 18:10ORD-LTN
20h 25m2 stops
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18:25 - 14:00LTN-ORD
25h 35m2 stops
Wed, 8 Oct - Wed, 15 Oct
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10:40 - 09:15ORD-LTN
16h 35m2 stops
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19:30 - 14:55LTN-ORD
25h 25m2 stops
Sun, 14 Sep - Thu, 25 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 5 August 2025.
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

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Mon 20/10

19:15-21:25

2 stops20h 10m

London Luton

Sun 2/11

13:10-16:45

2 stops33h 35m

£424

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 16/9

15:45-09:25

1 stop11h 40m

London Luton

Tue 23/9

13:10-19:00

1 stop11h 50m

£432

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 2/9

15:45-09:25

1 stop11h 40m

London Luton

Tue 9/9

10:00-19:00

1 stop15h 00m

£433

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 14/9

08:40-09:15

2 stops18h 35m

London Luton

Tue 23/9

19:05-15:55

2 stops26h 50m

£441

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 7/9

10:40-09:15

2 stops16h 35m

London Luton

Mon 15/9

15:05-15:55

2 stops30h 50m

£447

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 1/10

10:40-12:20

2 stops19h 40m

London Luton

Wed 8/10

07:00-19:29

2 stops18h 29m

£449

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Tue 2/9

08:40-09:15

2 stops18h 35m

London Luton

Tue 9/9

19:05-15:55

2 stops26h 50m

£453

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 3/9

10:40-09:15

2 stops16h 35m

London Luton

Wed 10/9

19:00-14:55

2 stops25h 55m

£455

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Wed 8/10

15:45-18:10

2 stops20h 25m

London Luton

Wed 15/10

18:25-14:00

2 stops25h 35m

£458

ChicagoLondon

ORD - LTN

ORDLTN

Chicago O'Hare Intl

Sun 14/9

10:40-09:15

2 stops16h 35m

London Luton

Thu 25/9

19:30-14:55

2 stops25h 25m

£458

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 22m and 10h 35m, 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

Best price found

£175

Fastest flight time

9h 50m

Direct flights

None
The best one-way flight to London Luton Airport from Illinois in the past 72 hours is £175. The best return flight deal from Illinois to London Luton Airport found on momondo in the last 72 hours is £424.
The fastest flight from Illinois to London Luton Airport takes 9h 50m
There are no direct flights from Illinois to London Luton Airport. Popular non-direct routes for this connection are Chicago Midway Airport - London Luton Airport and Chicago O'Hare Intl Airport - 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
Slough
Maidstone
Southend-on-Sea
Canterbury
Gatwick
Ipswich
Ilford
Guildford
Colchester
Dartford
Hounslow
Worthing
Dover
Chelmsford
Hayes
Winchester
Bedford

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.


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