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.

£297 Cheap Flights from Illinois to London Southend Airport in 2026

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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.

11:25 - 14:30

ORD

SEN

21h 05m

2 stops

07:15 - 09:40

SEN

ORD

32h 25m

2 stops

£498Multiple Airlines

Tue, 28 Apr - Wed, 6 May

16:20 - 19:50

ORD

SEN

21h 30m

2 stops

06:30 - 19:55

SEN

ORD

19h 25m

2 stops

£523Multiple Airlines

Mon, 27 Apr - Mon, 4 May

21:40 - 22:25

ORD

SEN

18h 45m

2 stops

08:40 - 13:20

SEN

ORD

34h 40m

2 stops

£541Multiple Airlines

Sun, 12 Apr - Sat, 18 Apr

21:40 - 22:20

ORD

SEN

18h 40m

2 stops

07:00 - 19:55

SEN

ORD

18h 55m

2 stops

£553Multiple Airlines

Tue, 14 Apr - Tue, 21 Apr

17:10 - 10:30

ORD

SEN

11h 20m

1 stop

07:25 - 15:10

SEN

ORD

13h 45m

1 stop

£906Multiple Airlines

Sun, 10 May - Sun, 17 May

17:10 - 10:30

ORD

SEN

11h 20m

1 stop

07:25 - 15:10

SEN

ORD

13h 45m

1 stop

£907Multiple Airlines

Sun, 10 May - Sun, 17 May

13:05 - 10:30

STL

SEN

15h 25m

2 stops

07:25 - 20:25

SEN

STL

19h 00m

2 stops

£914Multiple Airlines

Sun, 10 May - Sun, 17 May

13:05 - 10:25

STL

SEN

15h 20m

2 stops

07:25 - 20:25

SEN

STL

19h 00m

2 stops

£1,275Multiple Airlines

Sat, 23 May - Sun, 31 May

07:22 - 10:25

STL

SEN

21h 03m

3 stops

07:25 - 20:25

SEN

STL

19h 00m

2 stops

£1,277Multiple Airlines

Sat, 23 May - Sun, 31 May

13:05 - 10:30

STL

SEN

15h 25m

2 stops

08:10 - 20:25

SEN

STL

18h 15m

2 stops

£1,575Multiple Airlines

Sun, 7 Jun - Fri, 12 Jun

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

Tue 28/4

11:25-14:30

2 stops21h 05m

London Southend

Wed 6/5

07:15-09:40

2 stops32h 25m

£498

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Mon 27/4

16:20-19:50

2 stops21h 30m

London Southend

Mon 4/5

06:30-19:55

2 stops19h 25m

£523

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 12/4

21:40-22:25

2 stops18h 45m

London Southend

Sat 18/4

08:40-13:20

2 stops34h 40m

£541

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Tue 14/4

21:40-22:20

2 stops18h 40m

London Southend

Tue 21/4

07:00-19:55

2 stops18h 55m

£553

Fastest return journey

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 10/5

17:10-10:30

1 stop11h 20m

London Southend

Sun 17/5

07:25-15:10

1 stop13h 45m

£906

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 10/5

17:10-10:30

1 stop11h 20m

London Southend

Sun 17/5

07:25-15:10

1 stop13h 45m

£907

St. LouisLondon

STL - SEN

STLSEN

Lambert-St Louis

Sun 10/5

13:05-10:30

2 stops15h 25m

London Southend

Sun 17/5

07:25-20:25

2 stops19h 00m

£914

St. LouisLondon

STL - SEN

STLSEN

Lambert-St Louis

Sat 23/5

13:05-10:25

2 stops15h 20m

London Southend

Sun 31/5

07:25-20:25

2 stops19h 00m

£1,275

St. LouisLondon

STL - SEN

STLSEN

Lambert-St Louis

Sat 23/5

07:22-10:25

3 stops21h 03m

London Southend

Sun 31/5

07:25-20:25

2 stops19h 00m

£1,277

St. LouisLondon

STL - SEN

STLSEN

Lambert-St Louis

Sun 7/6

13:05-10:30

2 stops15h 25m

London Southend

Fri 12/6

08:10-20:25

2 stops18h 15m

£1,575

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 26m on average. Another popular route from Illinois to London Southend Airport is flying from Peoria to London Heathrow Airport, which will take roughly 12h 24m. 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 20m
Direct flights	None

The fastest flight from Illinois to London Southend Airport takes 15h 20m

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

Search flight deals

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

Ipswich

Wembley

Canterbury

Ilford

Guildford

Hayes

Chelmsford

Dover

Folkestone

Ramsgate

Chichester

Bedford

Worthing

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.