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Cheap flights from Southampton to Illinois from £585

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ORD
18 Jun — 25 Jun1
1 adult

Cheap flight deals from Southampton to Illinois

Keep the following information in mind while searching for Southampton to Illinois flight deals. Data was last updated 13 June 2025.

Round-trip from

£585

Popular in

August

Cheapest in

February

Average price

£530
KLM
  • KLM
  • 8/7-15/7
  • 2 total stops
  • 45h 45m total
  • Southampton to Illinois
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Southampton to Illinois

Cheapest flights from Southampton to Illinois
Explore the most affordable flight options available from Southampton to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Tue 8/718:25SOU - ORD
1 stop26h 15mKLM
Tue 15/716:20ORD - SOU
1 stop19h 30mKLM
Deal found 11/6£585
Tue 8/709:20SOU - ORD
2 stops18h 23mDelta
Tue 15/710:20ORD - SOU
2 stops16h 25mDelta
Deal found 11/6£747
Sun 27/709:10SOU - ORD
2 stops33h 20mMultiple Airlines
Sun 3/814:00ORD - SOU
2 stops23h 30mMultiple Airlines
Deal found 12/6£780
Sun 27/709:20SOU - MDW
2 stops15h 20mKLM
Sun 3/819:21MDW - SOU
2 stops16h 29mKLM
Deal found 12/6£1,296
Sun 27/709:20SOU - MDW
2 stops15h 20mDelta
Sun 3/819:21MDW - SOU
2 stops16h 29mDelta
Deal found 12/6£1,917

Cheapflights Fare Finder

Customise your flight search to find flights from Southampton to Illinois 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 13 June 2025.
Use the filters below to find and compare flights from Southampton to Illinois that are best for you.

Fly from

Southampton

Fly to

Illinois

Route

Depart

Return

Price

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Tue 8/7

18:25-14:40

1 stop26h 15m

Chicago O'Hare Intl

Tue 15/7

16:20-17:50

1 stop19h 30m

£585

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Tue 8/7

09:20-21:43

2 stops18h 23m

Chicago O'Hare Intl

Tue 15/7

10:20-08:45

2 stops16h 25m

£747

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sun 27/7

09:10-12:30

2 stops33h 20m

Chicago O'Hare Intl

Sun 3/8

14:00-19:30

2 stops23h 30m

£780

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Sun 27/7

09:20-18:40

2 stops15h 20m

Chicago Midway

Sun 3/8

19:21-17:50

2 stops16h 29m

£1,296

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Sun 27/7

09:20-18:40

2 stops15h 20m

Chicago Midway

Sun 3/8

19:21-17:50

2 stops16h 29m

£1,917

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sun 3/8

17:35-14:10

1 stop26h 35m

£1,478

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Best time to book a flight from Southampton to Illinois

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

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

Currently, January is the cheapest month in which you can book a flight from Southampton to Illinois (average of £595). Flying from Southampton to Illinois in July is currently the most expensive (average of £843). 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 Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated 13 June 2025.
To help decide which airline to fly from Southampton to Illinois, see what other customers have to say about Delta and KLM. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,946 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Southampton to Illinois. 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 from for flights from Southampton to Illinois?

    Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly out of when you book flights from Southampton to Illinois.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Southampton to Illinois (average of £595). Flying from Southampton to Illinois in July is currently the most expensive (average of £843). 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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