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Cheap flights from Illinois to Southampton from £379

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOU
29 Jan — 5 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Southampton

Enter your travel dates to find the best prices.

Best flights from Illinois to Southampton
Discover carefully curated flight deals from Illinois to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 December 2025.

Mon 16/216:25ORD - SOU
1 stop10h 25mDelta
Mon 23/217:40SOU - ORD
2 stops29h 01mDelta
Deal found 29/12£578
Wed 11/210:46MDW - SOU
2 stops15h 39mKLM
Wed 18/217:35SOU - MDW
2 stops30h 02mKLM
Deal found 27/12£581
Thu 12/210:35ORD - SOU
2 stops15h 50mVirgin Atlantic
Thu 19/217:35SOU - ORD
1 stop26h 45mVirgin Atlantic
Deal found 29/12£611
Mon 16/213:26MDW - SOU
2 stops13h 24mDelta
Mon 23/217:40SOU - MDW
2 stops30h 05mDelta
Deal found 29/12£581
Fri 13/216:25ORD - SOU
1 stop10h 20mKLM
Fri 20/209:00SOU - ORD
1 stop11h 20mKLM
Deal found 30/12£608
Sun 15/213:29MDW - SOU
2 stops13h 21mDelta
Mon 23/217:40SOU - MDW
2 stops30h 05mDelta
Deal found 29/12£581
Tue 17/213:28MDW - SOU
2 stops13h 22mDelta
Mon 23/217:40SOU - MDW
2 stops30h 05mDelta
Deal found 29/12£581
Fri 13/213:29MDW - SOU
2 stops13h 16mKLM
Fri 20/209:00SOU - MDW
2 stops15h 40mKLM
Deal found 30/12£661
Sun 15/212:29ORD - SOU
2 stops14h 21mDelta
Mon 23/217:40SOU - ORD
2 stops29h 01mDelta
Deal found 29/12£581
Sun 18/111:17ORD - SOU
2 stops15h 33mDelta
Sun 25/117:45SOU - ORD
1 stop26h 35mDelta
Deal found 30/12£617
Sun 18/109:50MDW - SOU
2 stops17h 00mDelta
Sun 25/117:45SOU - MDW
2 stops30h 51mDelta
Deal found 30/12£625
Thu 30/408:55ORD - SOU
2 stops17h 40mDelta
Sun 10/509:15SOU - ORD
2 stops16h 28mDelta
Deal found 29/12£666
Mon 16/216:25ORD - SOU
1 stop10h 25mDelta
Sun 22/209:30SOU - ORD
2 stops17h 14mDelta
Deal found 29/12£1,014

Find flight deals from Illinois to Southampton

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

Round-trip from

£578

One-way from

£379

Popular in

June

Cheapest in

September

Average price

£643
Delta
  • Delta
  • 16/2-23/2
  • 3 total stops
  • 39h 26m total
  • Illinois to Southampton
Search Deals
Aer Lingus
  • Aer Lingus
  • 1/6
  • 1 total stop
  • 16h 40m total
  • Illinois to Southampton
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£109 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 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 Illinois to Southampton 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 30 December 2025.
Use the filters below to find and compare flights from Illinois to Southampton that are best for you.

Fly from

Illinois

Fly to

Southampton

Route

Depart

Return

Price

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 16/2

16:25-08:50

1 stop10h 25m

Southampton Eastleigh

Mon 23/2

17:40-16:41

2 stops29h 01m

£578

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Wed 11/2

10:46-08:25

2 stops15h 39m

Southampton Eastleigh

Wed 18/2

17:35-17:37

2 stops30h 02m

£581

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Mon 16/2

13:26-08:50

2 stops13h 24m

Southampton Eastleigh

Mon 23/2

17:40-17:45

2 stops30h 05m

£581

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Sun 15/2

13:29-08:50

2 stops13h 21m

Southampton Eastleigh

Mon 23/2

17:40-17:45

2 stops30h 05m

£581

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Tue 17/2

13:28-08:50

2 stops13h 22m

Southampton Eastleigh

Mon 23/2

17:40-17:45

2 stops30h 05m

£581

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 15/2

12:29-08:50

2 stops14h 21m

Southampton Eastleigh

Mon 23/2

17:40-16:41

2 stops29h 01m

£581

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 13/2

16:25-08:45

1 stop10h 20m

Southampton Eastleigh

Fri 20/2

09:00-14:20

1 stop11h 20m

£608

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 12/2

10:35-08:25

2 stops15h 50m

Southampton Eastleigh

Thu 19/2

17:35-14:20

1 stop26h 45m

£611

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 18/1

11:17-08:50

2 stops15h 33m

Southampton Eastleigh

Sun 25/1

17:45-14:20

1 stop26h 35m

£617

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Sun 18/1

09:50-08:50

2 stops17h 00m

Southampton Eastleigh

Sun 25/1

17:45-18:36

2 stops30h 51m

£625

Flights are sorted by cheapest return flights first.

Deals found on 30/12

Showing 1-10 of 16 results
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Best time to book a flight from Illinois to Southampton

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

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

Currently, June is the cheapest month in which you can book a flight from Illinois to Southampton (average of £278). Flying from Illinois to Southampton in July is currently the most expensive (average of £448). 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 Illinois to Southampton. 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 into for flights to Southampton from Illinois?

    Most people fly into Southampton Eastleigh (SOU) if they book a flight to Southampton from Illinois. Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.

  • How long is the flight from Illinois to Southampton?

    A quick flight from Illinois to Southampton can take about 10h 25m. Delta provides one of the quickest options available for as low as £578. Illinois and Southampton are separated by a distance of 3921 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Illinois to Southampton (average of £278). Flying from Illinois to Southampton in July is currently the most expensive (average of £448). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Southampton

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

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southampton from Illinois.

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

Need flexible booking options for your flight to Southampton from Illinois? 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 Illinois to Southampton become cheaper?

Yes, Cheapflights offers price alerts on Illinois to Southampton flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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