Southampton

$293+ Cheap flights from Illinois to Southampton (SOU)

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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOU
Mar 3 — Mar 101
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Cheap flight deals from Illinois to Southampton

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 February 1, 2026.

This Mytrip deal was found by Cheapflights users on 1/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:00 am
ORD
-
SOU
2 stops20h 55m
Multiple Airlines
Tue 3/2412:25 pm
SOU
-
ORD
2 stops36h 00m
Multiple Airlines
Deal found 1/31$724
This Delta deal was found by Cheapflights users on 1/30. 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.
Sun 3/85:25 pm
ORD
-
SOU
1 stop18h 40m
Delta
Tue 3/175:35 pm
SOU
-
ORD
1 stop26h 45m
Delta
Deal found 1/30$778
This Delta deal was found by Cheapflights users on 1/31. 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.
Sun 3/87:10 am
ORD
-
SOU
2 stops20h 10m
Delta
Tue 3/248:50 am
SOU
-
ORD
2 stops30h 10m
Delta
Deal found 1/31$779
This Delta deal was found by Cheapflights users on 1/30. 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.
Tue 3/101:57 pm
ORD
-
SOU
2 stops13h 23m
Delta
Wed 3/188:50 am
SOU
-
ORD
1 stop11h 30m
Delta
Deal found 1/30$782
This Delta deal was found by Cheapflights users on 1/30. 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.
Wed 2/254:25 pm
ORD
-
SOU
1 stop9h 55m
Delta
Tue 3/35:35 pm
SOU
-
ORD
1 stop26h 45m
Delta
Deal found 1/30$787
This Delta deal was found by Cheapflights users on 1/30. 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.
Sun 3/85:25 pm
ORD
-
SOU
1 stop9h 55m
Delta
Wed 3/185:35 pm
SOU
-
ORD
2 stops28h 35m
Delta
Deal found 1/30$788
This Delta deal was found by Cheapflights users on 1/30. 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.
Tue 3/109:50 am
ORD
-
SOU
2 stops17h 30m
Delta
Thu 3/198:50 am
SOU
-
ORD
2 stops16h 27m
Delta
Deal found 1/30$792
This KLM deal was found by Cheapflights users on 1/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:20 pm
ORD
-
SOU
1 stop18h 30m
KLM
Tue 4/219:05 am
SOU
-
ORD
1 stop11h 10m
KLM
Deal found 1/30$793
This Delta deal was found by Cheapflights users on 1/30. 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.
Wed 2/254:25 pm
ORD
-
SOU
1 stop9h 55m
Delta
Mon 3/25:40 pm
SOU
-
ORD
2 stops29h 01m
Delta
Deal found 1/30$797
This Expedia deal was found by Cheapflights users on 1/31. 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.
Tue 3/172:05 pm
MDW
-
SOU
2 stops13h 15m
Multiple Airlines
Tue 3/248:50 am
SOU
-
MDW
2 stops18h 41m
Multiple Airlines
Deal found 1/31$807
This Delta deal was found by Cheapflights users on 1/31. 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.
Sun 3/86:34 pm
MDW
-
SOU
2 stops17h 31m
Delta
Tue 3/248:50 am
SOU
-
MDW
2 stops18h 41m
Delta
Deal found 1/31$899
This Delta deal was found by Cheapflights users on 1/30. 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.
Tue 4/76:34 pm
MDW
-
SOU
2 stops16h 16m
Delta
Tue 4/219:05 am
SOU
-
MDW
2 stops15h 31m
Delta
Deal found 1/30$1,341

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 February 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$724
(Mytrip)

One-way from

$293
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$658
Provider with most accurate pricing for Chicago (CHI)-London (LON) flight deals.
Provider most trusted by Cheapflights users for Chicago (CHI)-London (LON) flights.
From Illinois to Southampton Eastleigh
One-way flight from Illinois to Southampton Eastleigh
Highest demand for flights based on searches. 21% potential increase in price ($202 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated February 1, 2026.
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

Sun 3/8

5:25 pm-5:05 pm

1 stop18h 40m

Southampton Eastleigh

Tue 3/17

5:35 pm-3:20 pm

1 stop26h 45m

$778

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 3/11

5:25 pm-5:25 pm

1 stop19h 00m

Southampton Eastleigh

Thu 3/19

6:05 pm-3:20 pm

1 stop26h 15m

$778

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 3/8

5:25 pm-5:05 pm

1 stop18h 40m

Southampton Eastleigh

Thu 3/19

6:05 pm-3:20 pm

1 stop26h 15m

$778

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 3/11

5:25 pm-8:20 am

1 stop9h 55m

Southampton Eastleigh

Wed 3/18

8:50 am-3:20 pm

1 stop11h 30m

$778

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 3/8

5:25 pm-8:20 am

1 stop9h 55m

Southampton Eastleigh

Wed 3/18

8:50 am-3:20 pm

1 stop11h 30m

$778

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 3/9

5:25 pm-5:00 pm

1 stop18h 35m

Southampton Eastleigh

Tue 3/17

5:35 pm-3:20 pm

1 stop26h 45m

$778

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 3/9

5:25 pm-8:20 am

1 stop9h 55m

Southampton Eastleigh

Wed 3/18

8:50 am-3:20 pm

1 stop11h 30m

$778

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 3/9

2:10 pm-5:00 pm

2 stops21h 50m

Southampton Eastleigh

Thu 3/19

6:05 pm-3:20 pm

1 stop26h 15m

$782

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 3/10

7:00 am-5:00 pm

2 stops29h 00m

Southampton Eastleigh

Tue 3/17

5:35 pm-3:20 pm

1 stop26h 45m

$782

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Tue 3/17

2:05 pm-8:20 am

2 stops13h 15m

Southampton Eastleigh

Tue 3/24

8:50 am-10:31 pm

2 stops18h 41m

$807

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

Showing 1-10 of 23 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 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 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 $375). Flying from Illinois to Southampton in July is currently the most expensive (average of $609). 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?

    For as low as $778, Delta can have you in Southampton from Illinois in 18h 40m. Airlines will cover a distance of 3921 mi.

  • 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 vacation 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 $375). Flying from Illinois to Southampton in July is currently the most expensive (average of $609). 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

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

Top 2 airlines flying from Illinois to Southampton

Discover the top 2 airlines that operate flights from Illinois to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$682Average$1,359FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$884Average$1,135FlexibilityNo cancel feeOn-time75%

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