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Cheap flights from Illinois to Southampton from £428

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 31/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOU
20 Apr — 27 Apr1
1 adult

Cheap flight deals from Illinois to Southampton

Keep the following information in mind while searching for Illinois to Southampton flight deals. Data was last updated 15 April 2025.

Round-trip from

£592

One-way from

£428

Popular in

June

Cheapest in

February

Average price

£508
Delta
  • Delta
  • 9/9-23/9
  • 2 total stops
  • 21h 15m total
  • Illinois to Southampton
Search Deals
Aer Lingus
  • Aer Lingus
  • 31/5
  • 2 total stops
  • 36h 17m total
  • Illinois to Southampton
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£88 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find 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 15 April 2025.

Tue 9/916:20ORD - SOU
1 stop10h 25mDelta
Wed 17/909:20SOU - ORD
1 stop11h 20mDelta
Deal found 15/4£592
Sat 31/517:15ORD - SOU
2 stops33h 30mVirgin Atlantic
Sat 7/618:05SOU - ORD
1 stop26h 05mVirgin Atlantic
Deal found 15/4£717
Fri 30/516:20ORD - SOU
1 stop10h 25mKLM
Fri 6/609:20SOU - ORD
2 stops18h 01mKLM
Deal found 14/4£754
Fri 30/507:04ORD - SOU
3 stops43h 21mMultiple Airlines
Fri 6/609:40SOU - ORD
2 stops37h 04mMultiple Airlines
Deal found 15/4£788
Fri 30/509:20MDW - SOU
2 stops17h 25mDelta
Fri 6/609:20SOU - MDW
2 stops14h 25mDelta
Deal found 15/4£824
Thu 15/510:25MDW - SOU
2 stops16h 20mKLM
Wed 21/509:20SOU - MDW
2 stops15h 25mKLM
Deal found 15/4£870
Thu 18/1219:40ORD - SOU
1 stop18h 00mAer Lingus
Fri 9/109:30SOU - ORD
1 stop15h 45mAer Lingus
Deal found 15/4£1,058
Tue 29/421:15ORD - SOU
2 stops16h 10mBritish Airways
Tue 9/909:10SOU - ORD
1 stop15h 50mBritish Airways
Deal found 15/4£1,631

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 15 April 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

Tue 9/9

16:20-08:45

1 stop10h 25m

Southampton Eastleigh

Wed 17/9

09:20-14:40

1 stop11h 20m

£592

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sat 31/5

17:15-08:45

2 stops33h 30m

Southampton Eastleigh

Sat 7/6

18:05-14:10

1 stop26h 05m

£717

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 30/5

16:20-08:45

1 stop10h 25m

Southampton Eastleigh

Fri 6/6

09:20-21:21

2 stops18h 01m

£754

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 30/5

07:04-08:25

3 stops43h 21m

Southampton Eastleigh

Fri 6/6

09:40-16:44

2 stops37h 04m

£788

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Fri 30/5

09:20-08:45

2 stops17h 25m

Southampton Eastleigh

Fri 6/6

09:20-17:45

2 stops14h 25m

£824

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Thu 15/5

10:25-08:45

2 stops16h 20m

Southampton Eastleigh

Wed 21/5

09:20-18:45

2 stops15h 25m

£870

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 29/4

21:15-19:25

2 stops16h 10m

Southampton Eastleigh

Tue 9/9

09:10-19:00

1 stop15h 50m

£1,631

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 24/8

16:59-08:40

2 stops33h 41m

Southampton Eastleigh

Sat 6/9

09:40-12:21

2 stops32h 41m

£3,336

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sat 31/5

22:28-16:45

2 stops36h 17m

£428

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sat 31/5

16:20-17:50

1 stop19h 30m

£598

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 12 results
1
2

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, September is the cheapest month in which you can book a flight from Illinois to Southampton (average of £203). Flying from Illinois to Southampton in November is currently the most expensive (average of £262). 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.

Rainfall in Southampton by month

Plan your trip to Southampton by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southampton ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Southampton when rainfall is around 25.0 mm.

Temperature in Southampton by month

Plan your trip to Southampton by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southampton, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southampton. Reviews last updated 15 April 2025.
Get a feel of what it's like to fly with Delta, KLM and Virgin Atlantic from Illinois to Southampton by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,917 reviews
Check prices

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,917 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.0
Good
1,063 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,765 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Crew

8.5

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Illinois to Southampton one-way?

    One-way options have recently been found by users for as low as £428 on Aer Lingus. Other airlines that offer cheap prices include KLM from £598 and Delta from £3,329 one-way.

  • 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, September is the cheapest month in which you can book a flight from Illinois to Southampton (average of £203). Flying from Illinois to Southampton in November is currently the most expensive (average of £262). 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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