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.

£257 Cheap Flights from Illinois to London Southend Airport in 2026

Find the cheapest flights from Illinois to London

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One-way

Cheap return flights

Enter your travel dates to find the best prices.

22:25 - 19:35ORD Chicago O'Hare Intl-SEN London Southend

15h 10m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

07:00 - 19:15SEN London Southend-ORD Chicago O'Hare Intl

18h 15m2 stops Malaga Dublin

£599Multiple Airlines

Sun, 4 Oct - Tue, 13 Oct

22:25 - 19:35ORD Chicago O'Hare Intl-SEN London Southend

15h 10m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

20:25 - 14:15SEN London Southend-ORD Chicago O'Hare Intl

47h 50m3 stops Palma de Mallorca Son Sant Joan Barcelona-El Prat Amsterdam Schiphol

£606Multiple Airlines

Sun, 4 Oct - Tue, 13 Oct

18:30 - 19:20ORD Chicago O'Hare Intl-SEN London Southend

18h 50m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

08:15 - 17:20SEN London Southend-ORD Chicago O'Hare Intl

15h 05m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl

£629Multiple Airlines

Tue, 8 Dec - Tue, 15 Dec

18:30 - 14:50ORD Chicago O'Hare Intl-SEN London Southend

14h 20m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

07:35 - 17:20SEN London Southend-ORD Chicago O'Hare Intl

15h 45m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl

£664Multiple Airlines

Sun, 8 Nov - Fri, 13 Nov

19:25 - 19:35ORD Chicago O'Hare Intl-SEN London Southend

18h 10m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

15:30 - 16:30SEN London Southend-ORD Chicago O'Hare Intl

30h 00m2 stops Barcelona-El Prat Lisbon Humberto Delgado

£666Multiple Airlines

Thu, 22 Oct - Tue, 27 Oct

18:30 - 22:05ORD Chicago O'Hare Intl-SEN London Southend

21h 35m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

15:35 - 17:20SEN London Southend-ORD Chicago O'Hare Intl

31h 45m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl

£672Multiple Airlines

Sat, 21 Nov - Sun, 29 Nov

18:30 - 19:20ORD Chicago O'Hare Intl-SEN London Southend

18h 50m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol

08:15 - 17:20SEN London Southend-ORD Chicago O'Hare Intl

15h 05m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl

£692Multiple Airlines

Tue, 8 Dec - Tue, 15 Dec

09:55 - 10:45ORD Chicago O'Hare Intl-SEN London Southend

18h 50m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle

16:50 - 14:00SEN London Southend-ORD Chicago O'Hare Intl

27h 10m2 stops Barcelona-El Prat Dublin

£694Multiple Airlines

Thu, 24 Sep - Sat, 10 Oct

18:30 - 17:15ORD Chicago O'Hare Intl-SEN London Southend

16h 45m2 stops Reykjavik Keflavik Intl Paris Charles de Gaulle

19:10 - 17:20SEN London Southend-ORD Chicago O'Hare Intl

28h 10m3 stops Edinburgh Turnhouse Gdansk Rebiechowo Reykjavik Keflavik Intl

£746Multiple Airlines

Thu, 17 Dec - Thu, 7 Jan

14:20 - 10:45ORD Chicago O'Hare Intl-SEN London Southend

14h 25m2 stops Zurich Paris Charles de Gaulle

10:10 - 20:12SEN London Southend-ORD Chicago O'Hare Intl

16h 02m2 stops Paris Charles de Gaulle Montreal Pierre Elliott Trudeau Intl

£752Multiple Airlines

Thu, 1 Oct - Thu, 8 Oct

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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 return flight

ChicagoLondon

ORD Chicago O'Hare Intl - SEN London Southend

ORDSEN

Chicago O'Hare Intl

Sun 4/10

22:25-19:35

2 stops15h 10m

London Southend

Tue 13/10

07:00-19:15

2 stops18h 15m

£599

ChicagoLondon

ORD Chicago O'Hare Intl - SEN London Southend

ORDSEN

Chicago O'Hare Intl

Sun 4/10

22:25-19:35

2 stops15h 10m

London Southend

Tue 13/10

20:25-14:15

3 stops47h 50m

£606

ChicagoLondon

ORD Chicago O'Hare Intl - SEN London Southend

ORDSEN

Chicago O'Hare Intl

Tue 8/12

18:30-19:20

2 stops18h 50m

London Southend

Tue 15/12

08:15-17:20

2 stops15h 05m

£629

Fastest return journey

ChicagoLondon

ORD Chicago O'Hare Intl - SEN London Southend

ORDSEN

Chicago O'Hare Intl

Sun 8/11

18:30-14:50

2 stops14h 20m

London Southend

Fri 13/11

07:35-17:20

2 stops15h 45m

£664

ChicagoLondon

ORD Chicago O'Hare Intl - SEN London Southend

ORDSEN

Chicago O'Hare Intl

Thu 22/10

19:25-19:35

2 stops18h 10m

London Southend

Tue 27/10

15:30-16:30

2 stops30h 00m

£666

ChicagoLondon

ORD Chicago O'Hare Intl - SEN London Southend

ORDSEN

Chicago O'Hare Intl

Sat 21/11

18:30-22:05

2 stops21h 35m

London Southend

Sun 29/11

15:35-17:20

2 stops31h 45m

£672

ChicagoLondon

ORD Chicago O'Hare Intl - SEN London Southend

ORDSEN

Chicago O'Hare Intl

Tue 8/12

18:30-19:20

2 stops18h 50m

London Southend

Tue 15/12

08:15-17:20

2 stops15h 05m

£692

ChicagoLondon

ORD Chicago O'Hare Intl - SEN London Southend

ORDSEN

Chicago O'Hare Intl

Thu 24/9

09:55-10:45

3 stops18h 50m

London Southend

Sat 10/10

16:50-14:00

2 stops27h 10m

£694

ChicagoLondon

ORD Chicago O'Hare Intl - SEN London Southend

ORDSEN

Chicago O'Hare Intl

Thu 17/12

18:30-17:15

2 stops16h 45m

London Southend

Thu 7/1

19:10-17:20

3 stops28h 10m

£746

ChicagoLondon

ORD Chicago O'Hare Intl - SEN London Southend

ORDSEN

Chicago O'Hare Intl

Thu 1/10

14:20-10:45

2 stops14h 25m

London Southend

Thu 8/10

10:10-20:12

2 stops16h 02m

£752

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 42m on average. Another popular route from Illinois to London Southend Airport is flying from Moline to London Heathrow Airport, which will take roughly 14h 11m. 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.

Search flight deals

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

Ipswich

Maidstone

Folkestone

Ilford

Hastings

Canterbury

Chichester

Hayes

Guildford

Bedford

Harlow

Colchester

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.