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

Prices for flights from Illinois to London Southend Airport are updated daily.

How old do you have to be to fly from Illinois to London Southend 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 Southend Airport.

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

The travel and health documents required for your trip to London Southend 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 Southend Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£249 Cheap Flights from Illinois to London Southend Airport in 2026

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Find the cheapest flights from Illinois to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

19:25 - 16:40

ORD

SEN

15h 15m

2 stops

19:50 - 18:15

SEN

ORD

28h 25m

2 stops

£666Multiple Airlines

Wed, 29 Jul - Sun, 9 Aug

20:15 - 16:40

ORD

SEN

15h 25m

2 stops

19:35 - 16:45

SEN

ORD

27h 10m

2 stops

£747Multiple Airlines

Tue, 27 Oct - Sun, 8 Nov

18:30 - 21:50

ORD

SEN

21h 20m

2 stops

19:00 - 17:20

SEN

ORD

28h 20m

3 stops

£775Multiple Airlines

Tue, 22 Dec - Sun, 3 Jan

17:10 - 18:50

ORD

SEN

19h 40m

2 stops

07:35 - 14:15

SEN

ORD

12h 40m

1 stop

£1,052Multiple Airlines

Sun, 26 Jul - Sun, 2 Aug

15:30 - 22:20

STL

SEN

24h 50m

2 stops

15:40 - 18:41

SEN

STL

33h 01m

3 stops

£1,747Multiple Airlines

Tue, 29 Sep - Wed, 7 Oct

22:25 - 19:20

ORD

SEN

38h 55m

2 stops

16:30 - 14:15

SEN

ORD

27h 45m

1 stop

£1,835Multiple Airlines

Fri, 14 Aug - Fri, 21 Aug

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Use the filters below to find and compare flights from Illinois to London Southend Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 29/7

19:25-16:40

2 stops15h 15m

London Southend

Sun 9/8

19:50-18:15

2 stops28h 25m

£666

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Tue 27/10

20:15-16:40

2 stops15h 25m

London Southend

Sun 8/11

19:35-16:45

2 stops27h 10m

£747

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Tue 22/12

18:30-21:50

2 stops21h 20m

London Southend

Sun 3/1

19:00-17:20

3 stops28h 20m

£775

Fastest return journey

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 26/7

17:10-18:50

2 stops19h 40m

London Southend

Sun 2/8

07:35-14:15

1 stop12h 40m

£1,052

St. LouisLondon

STL - SEN

STLSEN

Lambert-St Louis

Tue 29/9

15:30-22:20

2 stops24h 50m

London Southend

Wed 7/10

15:40-18:41

3 stops33h 01m

£1,747

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 14/8

22:25-19:20

2 stops38h 55m

London Southend

Fri 21/8

16:30-14:15

1 stop27h 45m

£1,835

Cheapest one-way

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 2/9

22:25-19:35

3 stops39h 10m

£249

Fastest single journey

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Tue 1/9

19:25-19:40

3 stops18h 15m

£257

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Tue 21/7

19:25-19:40

3 stops18h 15m

£262

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 26/7

19:25-22:25

3 stops21h 00m

£264

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to London Southend 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 Southend Airport?

Flight times from Illinois to London Southend Airport vary, but if you’re flying out of Chicago and flying into London Heathrow Airport (one of the most popular routes), then the duration is 9h 12m on average. Another popular route from Illinois to London Southend Airport is flying from Moline to London Heathrow Airport, which will take roughly 11h 30m. Keep in mind that layovers or delays could extend your travel time.

Cheap Illinois to London Southend Airport flight deals and tips

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

Fastest flight time	14h 55m
Direct flights	None

The fastest flight from Illinois to London Southend Airport takes 14h 55m

There are no direct flights from Illinois to London Southend Airport. There are no popular flight routes from Illinois to London Southend Airport.

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Frequently asked questions about flying from Illinois to London Southend Airport

When did momondo last update prices for flights from Illinois to London Southend Airport?
Prices for flights from Illinois to London Southend Airport are updated daily.
How old do you have to be to fly from Illinois to London Southend 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 Southend Airport.
What documentation or ID do you need to fly to London Southend Airport?
The travel and health documents required for your trip to London Southend 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 Southend Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Eastbourne

Wembley

Gatwick

Milton Keynes

Luton

Southend-on-Sea

Slough

Maidstone

Ipswich

Ilford

Canterbury

Folkestone

Guildford

Hayes

Chichester

Hastings

Bedford

Colchester

Harlow

Chelmsford

Why use momondo?

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

It is quick and easy to find Illinois to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Yes. momondo enables you to select and highlight flights to London from Illinois with this policy.

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

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 London from Illinois.

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

Yes. momondo can track prices for Illinois to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.