Find flights
When to book
FAQs

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOU
15 Jun — 22 Jun1
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 16 May 2026.

Wed 5/815:45
ORD
-
SOU
1 stop10h 55m
Multiple Airlines
Tue 25/814:15
SOU
-
ORD
2 stops30h 30m
Multiple Airlines
Deal found 13/5£722
Fri 7/811:45
ORD
-
SOU
2 stops14h 55m
Aer Lingus
Sun 23/809:20
SOU
-
ORD
1 stop15h 55m
Aer Lingus
Deal found 13/5£736
Thu 6/815:45
ORD
-
SOU
1 stop19h 05m
Aer Lingus
Sat 22/809:20
SOU
-
ORD
2 stops16h 32m
Aer Lingus
Deal found 13/5£754
Fri 7/809:39
ORD
-
SOU
2 stops17h 01m
Multiple Airlines
Sun 23/809:20
SOU
-
ORD
2 stops16h 14m
Multiple Airlines
Deal found 13/5£757
Thu 6/810:56
ORD
-
SOU
2 stops15h 44m
Multiple Airlines
Sat 22/809:20
SOU
-
ORD
2 stops16h 32m
Multiple Airlines
Deal found 13/5£757
Fri 7/815:45
ORD
-
SOU
1 stop10h 55m
Multiple Airlines
Tue 25/814:15
SOU
-
ORD
2 stops30h 30m
Multiple Airlines
Deal found 13/5£759
Mon 7/919:35
ORD
-
SOU
2 stops15h 15m
KLM
Mon 21/917:20
SOU
-
ORD
1 stop26h 55m
KLM
Deal found 13/5£761
Fri 31/715:45
ORD
-
SOU
1 stop10h 55m
Aer Lingus
Fri 14/809:20
SOU
-
ORD
2 stops17h 00m
Aer Lingus
Deal found 12/5£765
Sun 11/1018:45
MDW
-
SOU
2 stops16h 05m
Delta
Thu 15/1017:20
SOU
-
MDW
2 stops29h 05m
Delta
Deal found 13/5£769
Fri 31/709:39
ORD
-
SOU
2 stops17h 01m
Multiple Airlines
Fri 14/809:20
SOU
-
ORD
2 stops17h 00m
Multiple Airlines
Deal found 12/5£769
Wed 5/815:45
ORD
-
SOU
1 stop10h 55m
Multiple Airlines
Fri 21/820:10
SOU
-
ORD
2 stops49h 50m
Multiple Airlines
Deal found 13/5£770
Thu 6/815:45
ORD
-
SOU
1 stop10h 55m
Multiple Airlines
Tue 25/814:15
SOU
-
ORD
2 stops30h 30m
Multiple Airlines
Deal found 13/5£777

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 16 May 2026.

Round-trip from

£722

One-way from

£392

Popular in

June

Cheapest in

February

Average price

£692
5/8-25/8
  • 5/8-25/8
  • 3 total stops
  • 41h 25m total
  • Illinois to Southampton
Search Deals
Aer Lingus
  • Aer Lingus
  • 28/9
  • 1 total stop
  • 16h 30m total
  • Illinois to Southampton
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£152 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£27 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 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 16 May 2026.
Use the filters below to find and compare flights from Illinois to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 7/9

16:50-16:50

1 stop18h 00m

Southampton Eastleigh

Mon 21/9

17:20-14:15

1 stop26h 55m

£757

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Sun 11/10

18:45-16:50

2 stops16h 05m

Southampton Eastleigh

Thu 15/10

17:20-16:25

2 stops29h 05m

£769

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 7/9

09:30-08:35

2 stops17h 05m

Southampton Eastleigh

Mon 21/9

09:05-21:45

2 stops18h 40m

£805

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Wed 5/8

19:25-17:35

2 stops16h 10m

Southampton Eastleigh

Mon 24/8

18:05-18:01

2 stops29h 56m

£809

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Sun 9/8

09:24-08:45

2 stops17h 21m

Southampton Eastleigh

Mon 24/8

18:05-18:01

2 stops29h 56m

£809

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Thu 13/8

10:54-08:45

2 stops15h 51m

Southampton Eastleigh

Wed 26/8

09:15-22:36

2 stops19h 21m

£876

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Sat 8/8

13:27-08:45

2 stops13h 18m

Southampton Eastleigh

Mon 24/8

09:15-22:36

2 stops19h 21m

£884

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 6/8

11:26-08:45

2 stops15h 19m

Southampton Eastleigh

Mon 24/8

09:15-19:30

2 stops16h 15m

£884

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 5/7

16:20-08:45

1 stop10h 25m

Southampton Eastleigh

Tue 14/7

18:05-14:30

1 stop26h 25m

£911

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 6/7

10:29-08:45

2 stops16h 16m

Southampton Eastleigh

Tue 14/7

09:15-14:15

1 stop11h 00m

£914

Flights are sorted by cheapest return flights first.

Deals found on 14/5

Showing 1-10 of 29 resultsSorted by cheapest first
1
2
3

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
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 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 16h 05m. KLM provides one of the quickest options available for as low as £769. Illinois and Southampton are separated by a distance of 3924 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
Newark to Gatwick flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to London City flights
LaGuardia to Heathrow flights
Dulles Intl to Heathrow flights
LaGuardia to Gatwick flights
Boston to Heathrow flights
Los Angeles to Heathrow flights
Baltimore to Heathrow flights
Newark to London City flights
Newark to Stansted flights
Newark to Luton flights
San Francisco to Heathrow flights
Boston to Gatwick flights
O'Hare Intl to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Seattle to Heathrow flights
LaGuardia to Stansted flights
Hobby to Heathrow flights
Orlando to Heathrow flights
Philadelphia to Heathrow flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Atlanta to Heathrow flights
Dulles Intl to London City flights
Boston to London City flights
Los Angeles to Gatwick flights
George Bush Intcntl to Heathrow flights
Miami to Heathrow flights
Boston to Stansted flights
Baltimore to Gatwick flights
Los Angeles to Stansted flights
Reagan-National to Gatwick flights
Los Angeles to London City flights
John F Kennedy Intl to Edinburgh flights
Denver to Heathrow flights
Newark to Edinburgh flights
O'Hare Intl to Gatwick flights
San Francisco to Gatwick flights
O'Hare Intl to Stansted flights
San Francisco to London City flights
O'Hare Intl to London City flights
Orlando to Gatwick flights
San Francisco to Stansted flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Southampton from Illinois today with Cheapflights!

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.