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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 required travel and health documents for your London Southend Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Southend Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$435 Cheap Flights from Illinois to London Southend Airport in 2026

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7:25 pm - 4:40 pm

ORD

SEN

15h 15m

2 stops

6:00 pm - 12:40 pm

SEN

ORD

24h 40m

3 stops

$914Multiple Airlines

Wed, Aug 5 - Wed, Aug 12

7:25 pm - 10:50 pm

ORD

SEN

21h 25m

3 stops

7:50 pm - 9:25 pm

SEN

ORD

31h 35m

3 stops

$935Multiple Airlines

Fri, Aug 14 - Sun, Aug 23

7:25 pm - 9:45 pm

ORD

SEN

20h 20m

2 stops

7:50 pm - 9:25 pm

SEN

ORD

31h 35m

3 stops

$956Multiple Airlines

Fri, Aug 14 - Sun, Aug 23

7:25 pm - 10:50 pm

ORD

SEN

21h 25m

3 stops

4:50 pm - 4:00 pm

SEN

ORD

29h 10m

2 stops

$977Multiple Airlines

Fri, Aug 14 - Sat, Aug 22

7:25 pm - 10:50 pm

ORD

SEN

21h 25m

3 stops

4:50 pm - 4:00 pm

SEN

ORD

29h 10m

2 stops

$991Multiple Airlines

Fri, Aug 14 - Sat, Aug 22

7:25 pm - 4:40 pm

ORD

SEN

15h 15m

2 stops

12:15 pm - 9:25 pm

SEN

ORD

15h 10m

2 stops

$1,004Multiple Airlines

Wed, Aug 5 - Wed, Aug 12

10:25 pm - 7:20 pm

ORD

SEN

14h 55m

2 stops

4:35 pm - 4:00 pm

SEN

ORD

29h 25m

2 stops

$1,019Multiple Airlines

Sat, Aug 8 - Thu, Aug 13

8:45 am - 11:45 am

ORD

SEN

21h 00m

2 stops

11:10 am - 12:35 pm

SEN

ORD

31h 25m

2 stops

$1,038Multiple Airlines

Tue, Jul 28 - Mon, Aug 3

7:15 pm - 7:35 pm

ORD

SEN

18h 20m

2 stops

4:55 pm - 4:10 pm

SEN

ORD

29h 15m

2 stops

$1,051Multiple Airlines

Sun, Aug 30 - Fri, Sep 4

11:05 am - 10:45 am

ORD

SEN

17h 40m

2 stops

7:45 am - 12:35 pm

SEN

ORD

34h 50m

2 stops

$1,097Multiple Airlines

Thu, Jul 16 - Mon, Jul 20

momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 8/5

7:25 pm-4:40 pm

2 stops15h 15m

London Southend

Wed 8/12

6:00 pm-12:40 pm

3 stops24h 40m

$914

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 8/14

7:25 pm-10:50 pm

3 stops21h 25m

London Southend

Sun 8/23

7:50 pm-9:25 pm

3 stops31h 35m

$935

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 8/14

7:25 pm-9:45 pm

2 stops20h 20m

London Southend

Sun 8/23

7:50 pm-9:25 pm

3 stops31h 35m

$956

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 8/14

7:25 pm-10:50 pm

3 stops21h 25m

London Southend

Sat 8/22

4:50 pm-4:00 pm

2 stops29h 10m

$977

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 8/14

7:25 pm-10:50 pm

3 stops21h 25m

London Southend

Sat 8/22

4:50 pm-4:00 pm

2 stops29h 10m

$991

Quickest round-trip

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 8/5

7:25 pm-4:40 pm

2 stops15h 15m

London Southend

Wed 8/12

12:15 pm-9:25 pm

2 stops15h 10m

$1,004

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sat 8/8

10:25 pm-7:20 pm

2 stops14h 55m

London Southend

Thu 8/13

4:35 pm-4:00 pm

2 stops29h 25m

$1,019

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Tue 7/28

8:45 am-11:45 am

2 stops21h 00m

London Southend

Mon 8/3

11:10 am-12:35 pm

2 stops31h 25m

$1,038

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 8/30

7:15 pm-7:35 pm

2 stops18h 20m

London Southend

Fri 9/4

4:55 pm-4:10 pm

2 stops29h 15m

$1,051

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Thu 7/16

11:05 am-10:45 am

2 stops17h 40m

London Southend

Mon 7/20

7:45 am-12:35 pm

2 stops34h 50m

$1,097

Flights are sorted by cheapest round-trip 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 refresh daily.
How old do you have to be to fly from Illinois to London Southend Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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 required travel and health documents for your London Southend Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Southend Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Hounslow

Gatwick

Milton Keynes

Dover

Luton

Hayes

Crawley

Wembley

Slough

Croydon

Stansted

Watford

Harrow

Brentwood

Dartford

Cobham

Folkestone

Romford

Uxbridge

Guildford

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 allows you to filter the results for Illinois to London flights to just show those with flexible booking policies.

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

Once all potential Illinois to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to London from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Illinois to London from $435

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 7/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Why use momondo?

An easier way to manage your London Southend Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

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