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$573+ Cheap flights from Southend (SEN) to Illinois

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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEN — ORD
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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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 August 2, 2025.

Round-trip from

$2,229
(Kiwi.com)

One-way from

$573
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$861
From London Southend to Illinois
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One-way flight from London Southend to Illinois
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Highest demand for flights based on searches. 14% potential increase in price ($120 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Southend to Illinois

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 August 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1511:05 amSEN - ORD
1 stop33h 55mMultiple Airlines
Mon 9/2211:25 amORD - SEN
2 stops29h 00mMultiple Airlines
Deal found 8/1$2,229

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated August 2, 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

Mon 9/15

11:05 am-3:00 pm

1 stop33h 55m

Chicago O'Hare Intl

Mon 9/22

11:25 am-10:25 pm

2 stops29h 00m

$2,229

LondonChicago

SEN - ORD

SENORD

London Southend

Fri 8/22

11:05 am-4:50 am

3 stops47h 45m

$573

LondonSt. Louis

SEN - STL

SENSTL

London Southend

Tue 8/19

2:40 pm-1:30 pm

3 stops28h 50m

$1,080

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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 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 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 vacation 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.

  • What is the cheapest month to book a flight from London Southend Airport to Illinois?

    Currently, August is the cheapest month in which you can book a flight from London Southend Airport to Illinois (average of $245). Flying from London Southend Airport to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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