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Cheap flights from London Southend Airport to Illinois from £418

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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — ORD
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 6 November 2025.

Mon 17/1107:15SEN - ORD
2 stops15h 30mMultiple Airlines
Sat 22/1119:20ORD - SEN
2 stops19h 30mMultiple Airlines
Deal found 4/11£657
Tue 16/1207:35SEN - ORD
2 stops15h 45mMultiple Airlines
Sun 28/1218:30ORD - SEN
2 stops14h 20mMultiple Airlines
Deal found 4/11£711
Thu 6/1106:50SEN - ORD
3 stops38h 10mMultiple Airlines
Sun 9/1118:30ORD - SEN
3 stops22h 30mMultiple Airlines
Deal found 4/11£773
Wed 5/1117:20SEN - ORD
3 stops30h 00mMultiple Airlines
Sun 9/1118:30ORD - SEN
3 stops22h 30mMultiple Airlines
Deal found 5/11£831
Tue 30/1207:35SEN - ORD
2 stops15h 45mMultiple Airlines
Wed 7/118:30ORD - SEN
2 stops16h 45mMultiple Airlines
Deal found 4/11£840
Sat 13/1206:40SEN - ORD
3 stops38h 05mMultiple Airlines
Sun 21/1217:20ORD - SEN
1 stop11h 10mMultiple Airlines
Deal found 5/11£992
Tue 2/1207:00SEN - ORD
3 stops38h 00mMultiple Airlines
Sun 21/1217:20ORD - SEN
1 stop11h 10mMultiple Airlines
Deal found 5/11£995
Sat 20/1207:15SEN - ORD
1 stop13h 05mMultiple Airlines
Sat 27/1217:20ORD - SEN
2 stops20h 50mMultiple Airlines
Deal found 5/11£1,236
Fri 19/1210:00SEN - ORD
2 stops34h 00mMultiple Airlines
Fri 26/1216:25ORD - SEN
1 stop11h 35mMultiple Airlines
Deal found 4/11£1,415

Cheap flight deals from Southend to Illinois

Keep the following information in mind while searching for Southend to Illinois flight deals. Data was last updated 6 November 2025.

Round-trip from

£550

One-way from

£418

Popular in

July

Cheapest in

February

Average price

£494
3/12-10/12
  • 3/12-10/12
  • 4 total stops
  • 35h 15m total
  • London to Illinois
Search Deals
24/3
  • 24/3
  • 3 total stops
  • 27h 35m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£63 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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 6 November 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

Tue 3/3

20:20-15:00

2 stops24h 40m

Chicago O'Hare Intl

Tue 17/3

20:40-23:05

3 stops21h 25m

£572

LondonChicago

SEN - ORD

SENORD

London Southend

Mon 17/11

07:15-16:45

2 stops15h 30m

Chicago O'Hare Intl

Sat 22/11

19:20-20:50

2 stops19h 30m

£657

LondonChicago

SEN - ORD

SENORD

London Southend

Tue 16/12

07:35-17:20

2 stops15h 45m

Chicago O'Hare Intl

Sun 28/12

18:30-14:50

2 stops14h 20m

£711

LondonChicago

SEN - ORD

SENORD

London Southend

Tue 30/12

07:35-17:20

2 stops15h 45m

Chicago O'Hare Intl

Wed 7/1

18:30-17:15

2 stops16h 45m

£840

LondonChicago

SEN - ORD

SENORD

London Southend

Sat 13/12

06:40-14:45

3 stops38h 05m

Chicago O'Hare Intl

Sun 21/12

17:20-10:30

1 stop11h 10m

£992

LondonChicago

SEN - ORD

SENORD

London Southend

Tue 2/12

07:00-15:00

3 stops38h 00m

Chicago O'Hare Intl

Sun 21/12

17:20-10:30

1 stop11h 10m

£995

LondonChicago

SEN - ORD

SENORD

London Southend

Sat 20/12

07:15-14:20

1 stop13h 05m

Chicago O'Hare Intl

Sat 27/12

17:20-20:10

2 stops20h 50m

£1,236

LondonChicago

SEN - ORD

SENORD

London Southend

Fri 19/12

10:00-14:00

2 stops34h 00m

Chicago O'Hare Intl

Fri 26/12

16:25-10:00

1 stop11h 35m

£1,415

LondonChicago

SEN - ORD

SENORD

London Southend

Tue 24/3

20:20-18:55

3 stops27h 35m

£418

LondonChicago

SEN - ORD

SENORD

London Southend

Mon 5/1

17:30-15:00

3 stops51h 30m

£432

Flights are sorted by cheapest return flights first.

Deals found on 3/11

Showing 1-10 of 19 results
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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

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Southend to Illinois?

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

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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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