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Cheap flights from Southampton to Illinois from £404

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ORD
15 Jun — 22 Jun1
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 16 May 2026.

Tue 9/609:20
SOU
-
ORD
1 stop15h 55m
Aer Lingus
Mon 15/621:00
ORD
-
SOU
1 stop16h 30m
Aer Lingus
Deal found 12/5£658
Tue 9/609:20
SOU
-
ORD
2 stops14h 55m
Multiple Airlines
Mon 15/619:25
ORD
-
SOU
2 stops18h 05m
Multiple Airlines
Deal found 14/5£697
Thu 3/909:20
SOU
-
ORD
1 stop15h 55m
British Airways
Tue 8/915:45
ORD
-
SOU
1 stop10h 20m
British Airways
Deal found 14/5£784
Wed 10/608:15
SOU
-
ORD
1 stop17h 00m
Aer Lingus
Tue 16/621:00
ORD
-
SOU
1 stop13h 50m
Aer Lingus
Deal found 13/5£785
Mon 29/609:05
SOU
-
ORD
1 stop11h 25m
Virgin Atlantic
Mon 6/707:10
ORD
-
SOU
2 stops19h 35m
Virgin Atlantic
Deal found 14/5£810
Mon 29/609:05
SOU
-
MDW
2 stops15h 13m
Delta
Mon 6/718:58
MDW
-
SOU
2 stops16h 37m
Delta
Deal found 14/5£814
Wed 10/609:05
SOU
-
MDW
2 stops15h 13m
Virgin Atlantic
Tue 16/618:58
MDW
-
SOU
2 stops31h 37m
Virgin Atlantic
Deal found 13/5£838
Tue 9/609:05
SOU
-
MDW
2 stops15h 13m
Virgin Atlantic
Mon 15/613:26
MDW
-
SOU
2 stops21h 24m
Virgin Atlantic
Deal found 14/5£899
Tue 9/609:05
SOU
-
MDW
2 stops15h 13m
Delta
Mon 15/617:11
MDW
-
SOU
2 stops17h 39m
Delta
Deal found 12/5£907
Tue 9/609:20
SOU
-
MDW
3 stops29h 54m
Multiple Airlines
Mon 15/609:17
MDW
-
SOU
3 stops25h 33m
Multiple Airlines
Deal found 12/5£979
Wed 10/608:15
SOU
-
MDW
3 stops40h 16m
Multiple Airlines
Tue 16/609:17
MDW
-
SOU
3 stops25h 33m
Multiple Airlines
Deal found 13/5£992
Fri 17/709:15
SOU
-
MDW
2 stops15h 03m
Delta
Sun 26/718:58
MDW
-
SOU
2 stops16h 37m
Delta
Deal found 12/5£1,073

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 16 May 2026.

Round-trip from

£658

One-way from

£404

Popular in

July

Cheapest in

February

Average price

£579
Aer Lingus
  • Aer Lingus
  • 9/6-15/6
  • 2 total stops
  • 32h 25m total
  • Southampton to Illinois
Search Deals
13/9
  • 13/9
  • 3 total stops
  • 41h 20m total
  • Southampton to Illinois
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£50 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 May 2026
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 16 May 2026.
Use the filters below to find and compare flights from Southampton to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Tue 9/6

09:20-18:15

2 stops14h 55m

Chicago O'Hare Intl

Mon 15/6

19:25-19:30

2 stops18h 05m

£697

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Mon 29/6

09:05-18:18

2 stops15h 13m

Chicago Midway

Mon 6/7

18:58-17:35

2 stops16h 37m

£814

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Wed 10/6

09:05-21:25

2 stops18h 20m

Chicago O'Hare Intl

Tue 16/6

17:57-16:50

2 stops16h 53m

£814
Fastest return journey

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Thu 3/9

06:45-18:15

2 stops17h 30m

Chicago O'Hare Intl

Tue 8/9

15:45-08:05

1 stop10h 20m

£827

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Tue 23/6

17:20-14:30

1 stop27h 10m

Chicago O'Hare Intl

Wed 22/7

15:55-17:35

2 stops19h 40m

£838

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Wed 10/6

09:05-18:18

2 stops15h 13m

Chicago Midway

Tue 16/6

18:58-08:35

2 stops31h 37m

£838

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Tue 23/6

17:20-14:30

1 stop27h 10m

Chicago O'Hare Intl

Fri 17/7

16:20-08:45

1 stop10h 25m

£867

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Wed 21/10

09:20-19:15

1 stop15h 55m

Chicago O'Hare Intl

Mon 2/11

21:45-17:40

2 stops13h 55m

£875

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Tue 1/9

20:00-11:30

1 stop21h 30m

Chicago O'Hare Intl

Sat 5/9

22:30-08:40

1 stop28h 10m

£879

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Tue 9/6

09:05-18:18

2 stops15h 13m

Chicago Midway

Mon 15/6

13:26-16:50

2 stops21h 24m

£899

Flights are sorted by cheapest return flights first.

Deals found on 14/5

Showing 1-10 of 24 resultsSorted by cheapest first
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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
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 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 15h 13m. The distance between Southampton and Illinois is about 3924 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.

See more FAQs

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Alternative routes for Southampton to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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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