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$877+ Cheap flights from Southampton (SOU) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ORD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Southampton to Illinois

Cheapest flights from Southampton to Illinois
Explore the most affordable flight options available from Southampton to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This TravelUp deal was found by Cheapflights users on 10/30. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/149:30 amSOU - ORD
2 stops41h 05mVirgin Atlantic
Sun 12/215:29 pmORD - SOU
2 stops32h 41mVirgin Atlantic
Deal found 10/30$950
This Gotogate deal was found by Cheapflights users on 10/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/148:10 pmSOU - ORD
1 stop23h 50mAer Lingus
Sun 12/217:40 pmORD - SOU
1 stop13h 55mAer Lingus
Deal found 10/30$954
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:50 amSOU - ORD
2 stops32h 44mDelta
Mon 12/297:00 amORD - SOU
2 stops19h 10mDelta
Deal found 10/30$962
This Gotogate deal was found by Cheapflights users on 10/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:40 pmSOU - ORD
2 stops28h 15mMultiple Airlines
Sun 12/217:40 pmORD - SOU
3 stops15h 55mMultiple Airlines
Deal found 10/30$1,004
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:50 amSOU - MDW
2 stops30h 04mDelta
Mon 12/296:00 amMDW - SOU
2 stops20h 10mDelta
Deal found 10/30$1,019
This British Airways deal was found by Cheapflights users on 10/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/139:30 amSOU - ORD
1 stop14h 25mBritish Airways
Mon 11/177:40 pmORD - SOU
1 stop13h 55mBritish Airways
Deal found 10/29$1,038
This British Airways deal was found by Cheapflights users on 10/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:10 pmSOU - ORD
1 stop23h 50mBritish Airways
Mon 12/297:40 pmORD - SOU
1 stop13h 55mBritish Airways
Deal found 10/30$1,121
This Expedia deal was found by Cheapflights users on 10/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:05 pmSOU - MDW
2 stops30h 13mMultiple Airlines
Sun 12/219:29 amMDW - SOU
2 stops16h 41mMultiple Airlines
Deal found 10/30$1,162
This British Airways deal was found by Cheapflights users on 10/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/278:10 pmSOU - ORD
1 stop23h 50mBritish Airways
Tue 12/303:50 pmORD - SOU
1 stop14h 05mBritish Airways
Deal found 10/30$1,378
This British Airways deal was found by Cheapflights users on 10/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/19:30 amSOU - ORD
1 stop14h 25mBritish Airways
Wed 2/49:00 pmORD - SOU
1 stop12h 35mBritish Airways
Deal found 10/30$1,413
This British Airways deal was found by Cheapflights users on 10/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/19:30 amSOU - ORD
1 stop14h 25mBritish Airways
Mon 2/29:00 pmORD - SOU
1 stop32h 55mBritish Airways
Deal found 10/30$1,421

Cheap flight deals from Southampton to Illinois

Keep the following information in mind while searching for Southampton to Illinois flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$877
(Virgin Atlantic)

Popular in

July

Cheapest in

February

Average price

$731
Provider with most accurate pricing for London (LON)-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Chicago (CHI) flights.
Search Deals
From Southampton Eastleigh to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($109 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Southampton 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 October 30, 2025.
Use the filters below to find and compare flights from Southampton to Illinois that are best for you.

Fly from

Southampton

Fly to

Illinois

Route

Depart

Return

Price

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Thu 3/5

6:05 pm-2:20 pm

1 stop26h 15m

Chicago O'Hare Intl

Mon 3/9

5:25 pm-5:00 pm

1 stop18h 35m

$877

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Thu 3/5

8:50 am-8:50 am

2 stops30h 00m

Chicago Midway

Mon 3/9

1:05 pm-5:00 pm

2 stops22h 55m

$882

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sun 12/14

6:05 pm-2:20 pm

1 stop26h 15m

Chicago O'Hare Intl

Sun 12/21

5:29 pm-8:10 am

2 stops32h 41m

$950

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sun 12/14

8:10 pm-2:00 pm

1 stop23h 50m

Chicago O'Hare Intl

Sun 12/21

7:40 pm-3:35 pm

1 stop13h 55m

$954

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Thu 11/27

8:50 am-11:34 am

2 stops32h 44m

Chicago O'Hare Intl

Mon 12/29

7:00 am-8:10 am

2 stops19h 10m

$962

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Thu 11/27

8:50 am-8:54 am

2 stops30h 04m

Chicago Midway

Mon 12/29

6:00 am-8:10 am

2 stops20h 10m

$1,019

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Thu 11/13

9:30 am-5:55 pm

1 stop14h 25m

Chicago O'Hare Intl

Mon 11/17

7:40 pm-3:35 pm

1 stop13h 55m

$1,038

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Thu 11/27

8:10 pm-2:00 pm

1 stop23h 50m

Chicago O'Hare Intl

Mon 12/29

7:40 pm-3:35 pm

1 stop13h 55m

$1,121

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Sun 12/14

6:05 pm-6:18 pm

2 stops30h 13m

Chicago Midway

Sun 12/21

9:29 am-8:10 am

2 stops16h 41m

$1,162

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Best time to book a flight from Southampton to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Southampton 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 Southampton to Illinois

What is the cheapest month to book a flight from Southampton to Illinois?

Currently, September is the cheapest month in which you can book a flight from Southampton to Illinois (average of $204). Flying from Southampton to Illinois in July is currently the most expensive (average of $673). 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.

Related info for your journey

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

  • What airport do you fly from for flights from Southampton to Illinois?

    Southampton Eastleigh (SOU) is the airport you will fly out of if you book a flight from Southampton to Illinois. It is only a 3.5 mi journey to Eastleigh (SOU) from Southampton’s city center.

  • How long is the flight from Southampton to Illinois?

    Departing from Southampton to Illinois will take you 26h 15m. Southampton and Illinois are separated by a distance of 3921 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Southampton 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 Southampton to Illinois?

    Currently, September is the cheapest month in which you can book a flight from Southampton to Illinois (average of $204). Flying from Southampton to Illinois in July is currently the most expensive (average of $673). 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.

See more FAQs

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