In terms of precipitation, rainfall in London Southend Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Southend Airport when rainfall is around 40.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

How far in advance should I book a flight from Illinois to London Southend Airport?

Users have found that booking a flight from Illinois to London Southend Airport at least 60 days early can save you up to 11% on average compared to booking a flight this week. If booking 60 days before your flight isn’t an option for you, users have found flights from Illinois to London Southend Airport for as little as £485 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £522 for flights departing within the next 3 days.

What is the cheapest month to fly from Illinois to London Southend Airport?

February is one of the best times of the year to fly to London Southend Airport from Illinois. Prices for February average £557 per person but you can even find prices for as low as £347. The most expensive prices can be found in the month of June. Opting for a February flight can save you 51% on your journey compared to booking in June

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 holiday 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.

£193+ Cheap Flights from Illinois to London Southend Airport

Cheap flight deals from Illinois to Southend

Round-trip from	£428
One-way from	£193
Popular in	June
Cheapest in	February
Average price	£485

5/11-10/11
4 total stops
36h 35m total
Illinois to London

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5/11
3 total stops
35h 20m total
Illinois to London

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£112 potential increase over avg. return price).

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Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).

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Average for round-trip flights in September 2025

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Find 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 16 September 2025.

Wed 5/1118:30ORD - SEN

2 stops20h 30mMultiple Airlines

Mon 10/1107:15SEN - ORD

2 stops16h 05mMultiple Airlines

Deal found 15/9£428

Fri 31/1017:25ORD - SEN

1 stop11h 35mMultiple Airlines

Fri 7/1107:35SEN - ORD

2 stops18h 48mMultiple Airlines

Deal found 15/9£832

Thu 18/910:40ORD - SEN

2 stops23h 05mMultiple Airlines

Mon 22/911:05SEN - ORD

2 stops14h 24mMultiple Airlines

Deal found 14/9£834

Wed 17/922:15ORD - SEN

2 stops16h 35mMultiple Airlines

Fri 19/920:50SEN - ORD

2 stops25h 40mMultiple Airlines

Deal found 14/9£860

Best flights from Illinois to Southend
Discover carefully curated flight deals from Illinois to Southend that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.

Wed 5/1118:30ORD - SEN

2 stops20h 30mMultiple Airlines

Mon 10/1107:15SEN - ORD

2 stops16h 05mMultiple Airlines

Deal found 15/9£428

Fri 31/1017:25ORD - SEN

1 stop11h 35mMultiple Airlines

Fri 7/1107:35SEN - ORD

2 stops18h 48mMultiple Airlines

Deal found 15/9£832

Last-minute flights from Illinois to Southend
Discover last-minute flight deals from Illinois to Southend. Data last updated 16 September 2025 and is based on user searches.

Wed 17/922:15ORD - SEN

2 stops16h 35mMultiple Airlines

Fri 19/920:50SEN - ORD

2 stops25h 40mMultiple Airlines

Deal found 14/9£860

Thu 18/910:40ORD - SEN

2 stops23h 05mMultiple Airlines

Mon 22/911:05SEN - ORD

2 stops14h 24mMultiple Airlines

Deal found 14/9£834

Fri 31/1017:25ORD - SEN

1 stop11h 35mMultiple Airlines

Fri 7/1107:35SEN - ORD

2 stops18h 48mMultiple Airlines

Deal found 15/9£832

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 16 September 2025.

Wed 5/1119:10ORD - SEN

3 stops35h 20mMultiple Airlines

Deal found 15/9£193

Tue 13/108:41ORD - SEN

3 stops45h 19mMultiple Airlines

Deal found 13/9£196

Wed 15/1018:58ORD - SEN

3 stops38h 47mMultiple Airlines

Deal found 15/9£202

Mon 17/1114:20ORD - SEN

2 stops37h 40mMultiple Airlines

Deal found 15/9£206

Sun 9/1106:40ORD - SEN

3 stops34h 20mMultiple Airlines

Deal found 15/9£208

Sun 16/1120:25ORD - SEN

3 stops20h 35mMultiple Airlines

Deal found 13/9£209

Sun 2/1120:25ORD - SEN

3 stops35h 25mMultiple Airlines

Deal found 14/9£211

Mon 8/1214:20ORD - SEN

2 stops37h 40mMultiple Airlines

Deal found 15/9£215

Mon 9/210:15ORD - SEN

3 stops41h 45mMultiple Airlines

Deal found 15/9£218

Mon 23/210:15ORD - SEN

2 stops27h 30mMultiple Airlines

Deal found 15/9£220

Mon 16/214:20ORD - SEN

2 stops37h 40mMultiple Airlines

Deal found 15/9£221

Wed 15/1006:33STL - SEN

3 stops32h 17mMultiple Airlines

Deal found 15/9£313

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

Wed 5/11

18:30-21:00

2 stops20h 30m

London Southend

Mon 10/11

07:15-17:20

2 stops16h 05m

£428

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Fri 31/10

17:25-10:00

1 stop11h 35m

London Southend

Fri 7/11

07:35-20:23

2 stops18h 48m

£832

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 5/11

19:10-12:30

3 stops35h 20m

£193

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Tue 13/1

08:41-12:00

3 stops45h 19m

£196

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Wed 15/10

18:58-15:45

3 stops38h 47m

£202

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Mon 17/11

14:20-10:00

2 stops37h 40m

£206

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 16/11

20:25-23:00

3 stops20h 35m

£209

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Sun 2/11

20:25-13:50

3 stops35h 25m

£211

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Mon 8/12

14:20-10:00

2 stops37h 40m

£215

ChicagoLondon

ORD - SEN

ORDSEN

Chicago O'Hare Intl

Mon 9/2

10:15-10:00

3 stops41h 45m

£218

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 14 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 return 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 holiday 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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Gatwick

Luton

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Wembley

Ilford

Crawley

Hayes

Watford

Winchester

Chichester

Ipswich

Dartford

Guildford

Brentford

Bishop's Stortford

Romford

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How does Cheapflights help users find flights from Illinois to Southend?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Southend from Illinois today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Illinois to Southend?

Cheapflights simply makes it quick and affordable to book flights from Illinois to Southend by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Illinois to Southend with no change fees?

Yes, we can. To see specific flights from Illinois to Southend with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Illinois to Southend become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Southend from Illinois today and book when prices fit your budget.

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Cheap flights from Illinois to London Southend Airport from £193

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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Southend

Keep the following information in mind while searching for Illinois to Southend flight deals. Data was last updated 16 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 16 September 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 16 September 2025.

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?

Travelling to a place near London Southend Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Southend

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Illinois to Southend?

Why should you use Cheapflights to find cheap flight tickets from Illinois to Southend?

Can Cheapflights find flights from Illinois to Southend with no change fees?

Can Cheapflights notify me if prices for flights from Illinois to Southend become cheaper?

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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 16 September 2025.