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Cheap flights from London Southend Airport to Illinois from £409

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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — ORD
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southend to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Southend to Illinois
Explore the most affordable flight options available from Southend to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 December 2025.

Sun 21/1212:55SEN - ORD
2 stops27h 10mMultiple Airlines
Sun 28/1217:20ORD - SEN
1 stop11h 10mMultiple Airlines
Deal found 20/12£1,146
Wed 24/1207:10SEN - ORD
2 stops18h 50mMultiple Airlines
Sun 4/117:20ORD - SEN
1 stop11h 10mMultiple Airlines
Deal found 20/12£1,409

Find flight deals from Southend to Illinois

Keep the following information in mind while searching for Southend to Illinois flight deals. Data was last updated 23 December 2025.

Round-trip from

£526

One-way from

£409

Popular in

July

Cheapest in

February

Average price

£595
4/2-11/2
  • 4/2-11/2
  • 4 total stops
  • 35h 15m total
  • London to Illinois
Search Deals
11/1
  • 11/1
  • 3 total stops
  • 45h 32m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southend to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 December 2025.
Use the filters below to find and compare flights from London Southend Airport to Illinois that are best for you.

Fly from

Southend

Fly to

Illinois

Route

Depart

Return

Price

LondonChicago

SEN - ORD

SENORD

London Southend

Wed 4/2

07:10-16:45

2 stops15h 35m

Chicago O'Hare Intl

Wed 11/2

19:20-21:00

2 stops19h 40m

£526

LondonChicago

SEN - ORD

SENORD

London Southend

Thu 5/2

14:35-14:20

1 stop29h 45m

Chicago O'Hare Intl

Thu 12/2

19:20-15:05

2 stops37h 45m

£1,741

LondonChicago

SEN - ORD

SENORD

London Southend

Sun 11/1

07:10-22:42

3 stops45h 32m

£409

LondonChicago

SEN - ORD

SENORD

London Southend

Sun 14/6

15:35-14:00

2 stops28h 25m

£415

LondonChicago

SEN - ORD

SENORD

London Southend

Fri 12/6

07:30-15:10

3 stops37h 40m

£427

LondonChicago

SEN - ORD

SENORD

London Southend

Fri 10/4

11:20-21:40

2 stops16h 20m

£439

LondonChicago

SEN - ORD

SENORD

London Southend

Fri 29/5

11:20-21:40

2 stops16h 20m

£456

LondonChicago

SEN - ORD

SENORD

London Southend

Mon 29/12

11:15-18:25

2 stops37h 10m

£570

LondonChicago

SEN - ORD

SENORD

London Southend

Thu 1/1

13:20-10:05

2 stops26h 45m

£825

LondonChicago

SEN - ORD

SENORD

London Southend

Mon 5/1

11:15-10:05

2 stops28h 50m

£873

Flights are sorted by cheapest return flights first.

Deals found on 22/12

Showing 1-10 of 12 results
1
2

Best time to book a flight from Southend to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Southend 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 London Southend Airport to Illinois
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Southend to Illinois. 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 Southend to Illinois that include hotel bookings?

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

  • How can I find direct flights from Southend to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Southend to Illinois 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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Alternative routes for Southend to Illinois

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Fly with Cheapflights

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

Deals for Southend to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from Southend to Illinois 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 Southend to Illinois with no change fees?

Need flexible booking options for your flight to Illinois from Southend? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

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