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Cheap flights from Southampton to Illinois from £265

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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ORD
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Illinois

Enter your travel dates to find the best prices.

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 5 December 2025.

Wed 17/1212:25SOU - ORD
1 stop11h 30mBritish Airways
Tue 6/121:00ORD - SOU
1 stop29h 45mBritish Airways
Deal found 4/12£1,047
Fri 19/1208:40SOU - ORD
1 stop11h 40mDelta
Mon 5/116:25ORD - SOU
1 stop18h 40mDelta
Deal found 4/12£1,105
Fri 19/1208:40SOU - ORD
1 stop11h 40mDelta
Sun 4/106:45ORD - SOU
2 stops20h 05mDelta
Deal found 4/12£1,135
Fri 19/1208:40SOU - ORD
1 stop11h 40mDelta
Tue 6/110:45ORD - SOU
2 stops16h 05mDelta
Deal found 4/12£1,159
Fri 19/1208:40SOU - ORD
1 stop11h 40mDelta
Tue 23/1209:41ORD - SOU
2 stops16h 29mDelta
Deal found 3/12£1,311
Wed 17/1212:25SOU - ORD
1 stop11h 30mBritish Airways
Mon 5/121:00ORD - SOU
2 stops14h 30mBritish Airways
Deal found 4/12£1,324
Wed 17/1212:25SOU - ORD
1 stop11h 30mBritish Airways
Sun 4/119:40ORD - SOU
1 stop13h 55mBritish Airways
Deal found 4/12£1,330
Wed 17/1208:40SOU - ORD
1 stop11h 40mDelta
Mon 5/116:25ORD - SOU
1 stop10h 25mDelta
Deal found 4/12£1,342
Fri 19/1208:30SOU - ORD
2 stops16h 15mBritish Airways
Tue 23/1215:50ORD - SOU
2 stops13h 05mBritish Airways
Deal found 3/12£1,521

Find flight deals from Southampton to Illinois

Keep the following information in mind while searching for Southampton to Illinois flight deals. Data was last updated 5 December 2025.

Round-trip from

£531

One-way from

£265

Popular in

July

Cheapest in

February

Average price

£599
British Airways
  • British Airways
  • 4/2-8/2
  • 2 total stops
  • 29h 30m total
  • Southampton to Illinois
Search Deals
16/1
  • 16/1
  • 3 total stops
  • 40h 14m total
  • Southampton to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£59 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 December 2025
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 5 December 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

Wed 4/2

12:25-19:15

1 stop12h 50m

Chicago O'Hare Intl

Sun 8/2

21:00-19:40

1 stop16h 40m

£531

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sun 18/1

09:30-16:20

2 stops36h 50m

Chicago O'Hare Intl

Sun 25/1

08:00-19:40

2 stops29h 40m

£546

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Fri 16/1

09:30-20:04

2 stops16h 34m

Chicago O'Hare Intl

Fri 23/1

21:00-08:45

1 stop29h 45m

£552

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Fri 16/1

09:00-14:20

1 stop11h 20m

Chicago O'Hare Intl

Fri 23/1

10:29-08:45

2 stops16h 16m

£555

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Fri 16/1

09:00-22:07

2 stops19h 07m

Chicago Midway

Fri 23/1

13:26-08:45

2 stops13h 19m

£570

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Wed 4/2

09:25-09:53

2 stops30h 28m

Chicago Midway

Sun 8/2

13:26-17:05

2 stops21h 39m

£590

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Wed 4/2

09:25-23:56

2 stops20h 31m

Chicago O'Hare Intl

Sun 8/2

13:58-17:05

2 stops21h 07m

£590

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Sun 18/1

17:45-17:29

2 stops29h 44m

Chicago Midway

Sun 25/1

10:48-08:50

2 stops16h 02m

£635

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Fri 16/1

17:35-19:15

2 stops31h 40m

Chicago O'Hare Intl

Fri 23/1

21:00-11:50

3 stops32h 50m

£708

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Fri 13/2

20:10-19:15

1 stop29h 05m

Chicago O'Hare Intl

Sun 15/2

21:00-15:35

1 stop12h 35m

£761

Flights are sorted by cheapest return flights first.

Deals found on 2/12

Showing 1-10 of 22 results
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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 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 Southampton to Illinois

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

Currently, March is the cheapest month in which you can book a flight from Southampton to Illinois (average of £303). Flying from Southampton to Illinois in July is currently the most expensive (average of £504). 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), located 3.5 mi from the city center, is the airport you fly out of when you book flights from Southampton to Illinois.

  • How long is the flight from Southampton to Illinois?

    Departing from Southampton to Illinois will take you 12h 50m. The distance between Southampton and Illinois is about 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 holiday 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, March is the cheapest month in which you can book a flight from Southampton to Illinois (average of £303). Flying from Southampton to Illinois in July is currently the most expensive (average of £504). 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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Alternative routes for Southampton to Illinois

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Fly with Cheapflights

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

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

Cheapflights helps you find that perfect flight to Illinois from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Southampton to Illinois flexibly with Cheapflights today.

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Not ready to book yet? You can track prices for flights from Southampton to Illinois on Cheapflights with our Price Alert feature and get notified when better prices are available.

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