In terms of precipitation, rainfall in London Southend Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Southend Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Southend Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What is the cheapest time of day to fly from IL to SEN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to London Southend Airport as you normally would.

Can I find deals for flights from Illinois to Southend that include hotel bookings?

Yes. In addition to deals on Illinois to Southend flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Illinois to Southend?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Southend.

Can I find deals for business class flights from Illinois to Southend?

Yes. Cheapflights offers flight deals from Illinois to Southend by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$365+ Flights from Illinois to London Southend Airport

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Cheap flight deals from Illinois to Southend

Cheapest flights from Illinois to Southend
Explore the most affordable flight options available from Illinois to Southend. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Sat 12/2011:27 amORD - SEN

3 stops27h 23mMultiple Airlines

Mon 12/225:30 pmSEN - ORD

3 stops46h 35mMultiple Airlines

Deal found 12/16

$1,601

Sat 12/209:55 pmORD - SEN

2 stops16h 55mMultiple Airlines

Wed 12/247:10 amSEN - ORD

2 stops18h 50mMultiple Airlines

Deal found 12/16

$2,307

Sat 12/277:20 pmORD - SEN

3 stops18h 50mMultiple Airlines

Fri 1/26:40 amSEN - ORD

2 stops16h 05mMultiple Airlines

Deal found 12/16

$2,579

Sun 12/287:40 pmORD - SEN

2 stops13h 10mMultiple Airlines

Fri 1/26:40 amSEN - ORD

2 stops19h 20mMultiple Airlines

Deal found 12/16

$2,851

Best flights from Illinois to Southend
Discover carefully curated flight deals from Illinois to Southend that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Thu 1/153:35 pmORD - SEN

2 stops15h 15mMultiple Airlines

Mon 1/197:15 amSEN - ORD

2 stops17h 10mMultiple Airlines

Deal found 12/17

$690

Sat 3/77:20 pmORD - SEN

2 stops18h 50mMultiple Airlines

Fri 3/136:40 amSEN - ORD

2 stops16h 15mMultiple Airlines

Deal found 12/16

$811

Sat 12/2011:27 amORD - SEN

3 stops27h 23mMultiple Airlines

Mon 12/225:30 pmSEN - ORD

3 stops46h 35mMultiple Airlines

Deal found 12/16

$1,601

Sat 12/209:55 pmORD - SEN

2 stops16h 55mMultiple Airlines

Wed 12/247:10 amSEN - ORD

2 stops18h 50mMultiple Airlines

Deal found 12/16

$2,307

Sat 12/277:20 pmORD - SEN

3 stops18h 50mMultiple Airlines

Fri 1/26:40 amSEN - ORD

2 stops16h 05mMultiple Airlines

Deal found 12/16

$2,579

Sun 12/287:40 pmORD - SEN

2 stops13h 10mMultiple Airlines

Fri 1/26:40 amSEN - ORD

2 stops19h 20mMultiple Airlines

Deal found 12/16

$2,851

Last-minute flights from Illinois to Southend
Discover last-minute flight deals from Illinois to Southend. Data last updated December 18, 2025 and is based on user searches.

Sat 12/2011:27 amORD - SEN

3 stops27h 23mMultiple Airlines

Mon 12/225:30 pmSEN - ORD

3 stops46h 35mMultiple Airlines

Deal found 12/16

$1,601

Sat 12/209:55 pmORD - SEN

2 stops16h 55mMultiple Airlines

Wed 12/247:10 amSEN - ORD

2 stops18h 50mMultiple Airlines

Deal found 12/16

$2,307

Sat 12/277:20 pmORD - SEN

3 stops18h 50mMultiple Airlines

Fri 1/26:40 amSEN - ORD

2 stops16h 05mMultiple Airlines

Deal found 12/16

$2,579

Sat 12/277:40 pmORD - SEN

2 stops18h 30mMultiple Airlines

Sat 1/37:15 amSEN - ORD

2 stops16h 33mMultiple Airlines

Deal found 12/15

$3,151

Sun 12/2812:50 pmORD - SEN

2 stops15h 40mMultiple Airlines

Sun 1/46:05 pmSEN - ORD

3 stops31h 50mMultiple Airlines

Deal found 12/15

$2,018

Sun 12/287:40 pmORD - SEN

2 stops13h 10mMultiple Airlines

Fri 1/26:40 amSEN - ORD

2 stops19h 20mMultiple Airlines

Deal found 12/16

$2,851

Thu 1/153:35 pmORD - SEN

2 stops15h 15mMultiple Airlines

Mon 1/197:15 amSEN - ORD

2 stops17h 10mMultiple Airlines

Deal found 12/17

$690

One-way flights from Illinois to Southend
Search for one-way flight options from Illinois to Southend. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Sat 1/3112:12 pmSTL - SEN

3 stops22h 53mMultiple Airlines

Deal found 12/17

$365

Sat 3/285:53 pmORD - SEN

2 stops34h 42mMultiple Airlines

Deal found 12/14

$383

Sun 4/268:50 pmORD - SEN

2 stops19h 35mMultiple Airlines

Deal found 12/15

$384

Mon 2/28:22 pmSTL - SEN

3 stops57h 38mMultiple Airlines

Deal found 12/17

$384

Wed 4/153:45 pmORD - SEN

2 stops15h 00mMultiple Airlines

Deal found 12/16

$390

Sat 3/712:44 pmORD - SEN

3 stops22h 21mMultiple Airlines

Deal found 12/16

$391

Tue 12/306:30 pmORD - SEN

3 stops22h 35mMultiple Airlines

Deal found 12/14

$398

Fri 3/274:50 pmORD - SEN

2 stops35h 30mMultiple Airlines

Deal found 12/15

$399

Tue 5/58:50 pmORD - SEN

2 stops16h 50mMultiple Airlines

Deal found 12/16

$410

Sun 2/19:32 pmSTL - SEN

3 stops54h 28mMultiple Airlines

Deal found 12/17

$416

Fri 1/96:30 pmORD - SEN

3 stops18h 50mMultiple Airlines

Deal found 12/17

$425

Wed 4/153:30 pmSTL - SEN

3 stops39h 30mMultiple Airlines

Deal found 12/17

$469

Find flight deals from Illinois to Southend

Most accurate provider	Justfly.com 3 stars
Most trusted provider	Justfly.com 3 stars
Round-trip from	$690 (Mytrip)
One-way from	$365 (Kiwi.com)
Popular in	June
Cheapest in	September
Average price	$833

Provider with most accurate pricing for Chicago (CHI)-London (LON) flight deals.

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Provider most trusted by Cheapflights users for Chicago (CHI)-London (LON) flights.

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From Illinois to London Southend

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One-way flight from Illinois to London Southend

Search Deals

Highest demand for flights based on searches. 21% potential increase in price ($204 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).

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Average for round-trip flights in December 2025

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Cheapflights 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

Thu 1/15

3:35 pm-12:50 pm

2 stops15h 15m

London Southend

Mon 1/19

7:15 am-6:25 pm

2 stops17h 10m

$690

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sat 3/7

7:20 pm-8:10 pm

2 stops18h 50m

London Southend

Fri 3/13

6:40 am-5:55 pm

2 stops16h 15m

$811

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sat 12/20

11:27 am-8:50 pm

3 stops27h 23m

London Southend

Mon 12/22

5:30 pm-10:05 am

3 stops46h 35m

$1,601

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sat 12/20

9:55 pm-8:50 pm

2 stops16h 55m

London Southend

Wed 12/24

7:10 am-8:00 pm

2 stops18h 50m

$2,307

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sat 12/27

7:20 pm-8:10 pm

3 stops18h 50m

London Southend

Fri 1/2

6:40 am-4:45 pm

2 stops16h 05m

$2,579

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 12/28

7:40 pm-2:50 pm

2 stops13h 10m

London Southend

Fri 1/2

6:40 am-8:00 pm

2 stops19h 20m

$2,851

St. LouisLondon

STL - SEN

STLSEN

Lambert-St Louis

Sat 1/31

12:12 pm-5:05 pm

3 stops22h 53m

$365

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sat 3/7

12:44 pm-5:05 pm

3 stops22h 21m

$391

St. LouisLondon

STL - SEN

STLSEN

Lambert-St Louis

Sun 2/1

9:32 pm-10:00 am

3 stops54h 28m

$416

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 1/14

6:30 pm-5:15 pm

3 stops16h 45m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 23 results

Best time to book a flight from Illinois to Southend

Have a flexible travel schedule? Discover the best time to fly to Southend from Illinois with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to London Southend Airport

No data available for this route at this time. Please check back soon.

Related info for your journey

Can I find deals for flights from Illinois to Southend that include hotel bookings?
Yes. In addition to deals on Illinois to Southend flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois to Southend?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Southend.
Can I find deals for business class flights from Illinois to Southend?
Yes. Cheapflights offers flight deals from Illinois to Southend by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Orpington

Watford

Hayes

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Chipping Norton

Horley

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Wembley

Folkestone

Eastbourne

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$365+ Cheap flights from Illinois to Southend (SEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Southend with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Illinois to Southend

Cheapest flights from Illinois to SouthendExplore the most affordable flight options available from Illinois to Southend. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Explore the most affordable flight options available from Illinois to Southend. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Find flight deals from Illinois to Southend

Keep the following information in mind while searching for Illinois to Southend flight deals. Data was last updated December 18, 2025.

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Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Illinois to Southend

Have a flexible travel schedule? Discover the best time to fly to Southend from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to London Southend Airport

Related info for your journey

Find useful and relevant information for your journey from Illinois to Southend. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Illinois to Southend that include hotel bookings?

How can I find direct flights from Illinois to Southend?

Can I find deals for business class flights from Illinois to Southend?

Traveling to a place near London Southend Airport?

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Cheapest flights from Illinois to Southend
Explore the most affordable flight options available from Illinois to Southend. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.