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.

£278 Cheap Flights from Illinois to London Southend Airport in 2025/26

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0 bags

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18:30 - 14:50

ORD

SEN

14h 20m2 stops

06:40 - 17:20

SEN

ORD

16h 40m2 stops

£574Multiple Airlines

Sun, 11 Jan - Fri, 16 Jan

momondo Fare Finder

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

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 11/1

18:30-14:50

2 stops14h 20m

London Southend

Fri 16/1

06:40-17:20

2 stops16h 40m

£574

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 1/4

18:00-11:55

3 stops35h 55m

£278

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Tue 31/3

16:30-23:05

2 stops24h 35m

£285

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 22/3

17:05-23:00

3 stops24h 55m

£290

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 20/5

16:47-10:45

2 stops35h 58m

£292

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 9/1

18:30-12:15

3 stops35h 45m

£296

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 20/5

09:04-12:45

3 stops21h 41m

£298

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Tue 14/4

15:45-16:10

2 stops18h 25m

£304

St. LouisLondon

STL - SEN

STLSEN

Lambert-St Louis

Sun 8/3

16:50-23:00

3 stops25h 10m

£317

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 13/3

21:15-17:05

2 stops38h 50m

£321

Flights are sorted by cheapest return flights first.

Showing 1-10 of 11 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 28m on average. Another popular route from Illinois to London Southend Airport is flying from Peoria to London Heathrow Airport, which will take roughly 10h 05m. 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 20m
Direct flights	None

The fastest flight from Illinois to London Southend Airport takes 14h 20m

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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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

Milton Keynes

Luton

Gatwick

Maidstone

Slough

Southend-on-Sea

Canterbury

Ipswich

Ilford

Guildford

Hayes

Chelmsford

Dover

Worthing

Hounslow

Bedford

Colchester

Ramsgate

Folkestone

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.