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Cheap flights from Illinois to Southampton from £392

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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOU
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Southampton

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Southampton
Explore the most affordable flight options available from Illinois to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.

Wed 31/1216:25ORD - SOU
1 stop9h 55mDelta
Thu 8/117:35SOU - ORD
2 stops34h 17mDelta
Deal found 17/12£639
Tue 30/1207:00ORD - SOU
2 stops28h 00mDelta
Thu 8/117:35SOU - ORD
2 stops34h 17mDelta
Deal found 17/12£642
Wed 31/1216:25ORD - SOU
1 stop9h 55mDelta
Fri 9/109:00SOU - ORD
2 stops30h 41mDelta
Deal found 17/12£644
Wed 31/1216:25ORD - SOU
1 stop19h 00mDelta
Tue 6/117:35SOU - ORD
1 stop26h 45mDelta
Deal found 17/12£645
Tue 30/1207:00ORD - SOU
2 stops28h 00mDelta
Tue 6/117:35SOU - ORD
1 stop26h 45mDelta
Deal found 17/12£679
Mon 29/1216:25ORD - SOU
1 stop18h 35mDelta
Thu 8/117:35SOU - ORD
2 stops34h 17mDelta
Deal found 17/12£695
Mon 29/1216:25ORD - SOU
1 stop18h 35mDelta
Fri 9/109:00SOU - ORD
2 stops30h 41mDelta
Deal found 17/12£700
Mon 29/1216:25ORD - SOU
1 stop18h 35mDelta
Tue 6/117:35SOU - ORD
1 stop26h 45mDelta
Deal found 17/12£732
Sun 21/1209:29MDW - SOU
2 stops16h 41mKLM
Tue 23/1208:40SOU - MDW
2 stops19h 42mKLM
Deal found 17/12£8,116

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 18 December 2025.

Round-trip from

£573

One-way from

£392

Popular in

June

Cheapest in

September

Average price

£623
31/1-7/2
  • 31/1-7/2
  • 5 total stops
  • 50h 40m total
  • Illinois to Southampton
Search Deals
15/6
  • 15/6
  • 3 total stops
  • 41h 31m total
  • Illinois to Southampton
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£114 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% 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 18 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

Wed 18/2

16:25-08:25

1 stop10h 00m

Southampton Eastleigh

Thu 26/2

18:05-14:20

1 stop26h 15m

£574

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 20/2

16:25-17:00

1 stop18h 35m

Southampton Eastleigh

Thu 26/2

18:05-14:20

1 stop26h 15m

£612

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 20/2

06:30-08:50

2 stops20h 20m

Southampton Eastleigh

Fri 27/2

08:40-14:20

1 stop11h 40m

£615

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 12/4

16:20-16:50

1 stop18h 30m

Southampton Eastleigh

Sat 18/4

17:20-14:15

1 stop26h 55m

£622

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 12/4

15:45-08:40

1 stop10h 55m

Southampton Eastleigh

Sat 18/4

09:10-18:15

2 stops15h 05m

£633

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 31/12

05:30-08:20

2 stops20h 50m

Southampton Eastleigh

Thu 8/1

17:35-17:44

2 stops30h 09m

£642

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 31/12

16:25-17:25

1 stop19h 00m

Southampton Eastleigh

Tue 6/1

17:35-14:20

1 stop26h 45m

£645

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 30/12

07:00-17:00

2 stops28h 00m

Southampton Eastleigh

Fri 9/1

09:00-09:41

2 stops30h 41m

£648

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 31/12

05:30-08:20

2 stops20h 50m

Southampton Eastleigh

Fri 9/1

09:00-09:41

2 stops30h 41m

£648

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 20/2

16:25-08:50

1 stop10h 25m

Southampton Eastleigh

Sat 28/2

09:25-20:17

2 stops16h 52m

£656

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 19 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 £280). Flying from Illinois to Southampton in July is currently the most expensive (average of £452). 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. Delta provides one of the quickest options available for as low as £574. 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 £280). Flying from Illinois to Southampton in July is currently the most expensive (average of £452). 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 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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