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.

£326 Cheap Flights from Illinois to London Southend Airport in 2026

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0 bags

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Find the cheapest flights from Illinois to London

Round-trip

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

18:00 - 12:40

SEN

ORD

24h 40m

3 stops

£686Multiple Airlines

Wed, 5 Aug - Wed, 12 Aug

19:25 - 22:50

ORD

SEN

21h 25m

3 stops

19:50 - 21:25

SEN

ORD

31h 35m

3 stops

£702Multiple Airlines

Fri, 14 Aug - Sun, 23 Aug

19:25 - 21:45

ORD

SEN

20h 20m

2 stops

19:50 - 21:25

SEN

ORD

31h 35m

3 stops

£717Multiple Airlines

Fri, 14 Aug - Sun, 23 Aug

19:25 - 22:50

ORD

SEN

21h 25m

3 stops

16:50 - 16:00

SEN

ORD

29h 10m

2 stops

£733Multiple Airlines

Fri, 14 Aug - Sat, 22 Aug

19:25 - 22:50

ORD

SEN

21h 25m

3 stops

16:50 - 16:00

SEN

ORD

29h 10m

2 stops

£744Multiple Airlines

Fri, 14 Aug - Sat, 22 Aug

19:25 - 16:40

ORD

SEN

15h 15m

2 stops

12:15 - 21:25

SEN

ORD

15h 10m

2 stops

£753Multiple Airlines

Wed, 5 Aug - Wed, 12 Aug

22:25 - 19:20

ORD

SEN

14h 55m

2 stops

16:35 - 16:00

SEN

ORD

29h 25m

2 stops

£765Multiple Airlines

Sat, 8 Aug - Thu, 13 Aug

08:45 - 11:45

ORD

SEN

21h 00m

2 stops

11:10 - 12:35

SEN

ORD

31h 25m

2 stops

£779Multiple Airlines

Tue, 28 Jul - Mon, 3 Aug

19:15 - 19:35

ORD

SEN

18h 20m

2 stops

16:55 - 16:10

SEN

ORD

29h 15m

2 stops

£789Multiple Airlines

Sun, 30 Aug - Fri, 4 Sep

11:05 - 10:45

ORD

SEN

17h 40m

2 stops

07:45 - 12:35

SEN

ORD

34h 50m

2 stops

£823Multiple Airlines

Thu, 16 Jul - Mon, 20 Jul

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

Cheapest return flight

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 5/8

19:25-16:40

2 stops15h 15m

London Southend

Wed 12/8

18:00-12:40

3 stops24h 40m

£686

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 14/8

19:25-22:50

3 stops21h 25m

London Southend

Sun 23/8

19:50-21:25

3 stops31h 35m

£702

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 14/8

19:25-21:45

2 stops20h 20m

London Southend

Sun 23/8

19:50-21:25

3 stops31h 35m

£717

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 14/8

19:25-22:50

3 stops21h 25m

London Southend

Sat 22/8

16:50-16:00

2 stops29h 10m

£733

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 14/8

19:25-22:50

3 stops21h 25m

London Southend

Sat 22/8

16:50-16:00

2 stops29h 10m

£744

Fastest return journey

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 5/8

19:25-16:40

2 stops15h 15m

London Southend

Wed 12/8

12:15-21:25

2 stops15h 10m

£753

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sat 8/8

22:25-19:20

2 stops14h 55m

London Southend

Thu 13/8

16:35-16:00

2 stops29h 25m

£765

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Tue 28/7

08:45-11:45

2 stops21h 00m

London Southend

Mon 3/8

11:10-12:35

2 stops31h 25m

£779

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 30/8

19:15-19:35

2 stops18h 20m

London Southend

Fri 4/9

16:55-16:10

2 stops29h 15m

£789

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Thu 16/7

11:05-10:45

2 stops17h 40m

London Southend

Mon 20/7

07:45-12:35

2 stops34h 50m

£823

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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 30m on average. Another popular route from Illinois to London Southend Airport is flying from Peoria to London Heathrow Airport, which will take roughly 9h 55m. 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	15h 15m
Direct flights	None

The fastest flight from Illinois to London Southend Airport takes 15h 15m

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

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?

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.