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Cheap flights from Southampton to Illinois from £521

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ORD
18 Mar — 25 Mar1
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 March 2025.

Round-trip from

£521

Popular in

August

Cheapest in

February

Average price

£495
23/4-30/4
  • 23/4-30/4
  • 4 total stops
  • 33h 10m total
  • Southampton to Illinois
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 March 2025.

Wed 23/409:10SOU - ORD
2 stops15h 05mMultiple Airlines
Wed 30/419:25ORD - SOU
2 stops18h 05mMultiple Airlines
Deal found 12/3£521
Sat 26/409:20SOU - ORD
1 stop10h 50mDelta
Sat 3/510:05ORD - SOU
2 stops16h 40mDelta
Deal found 12/3£589
Wed 23/417:35SOU - ORD
1 stop26h 35mKLM
Wed 30/416:50ORD - SOU
1 stop9h 55mKLM
Deal found 12/3£595
Wed 23/409:20SOU - MDW
2 stops19h 02mDelta
Wed 30/417:59MDW - SOU
2 stops17h 01mDelta
Deal found 13/3£603
Sat 26/409:40SOU - ORD
1 stop15h 20mAer Lingus
Sat 3/515:45ORD - SOU
1 stop10h 50mAer Lingus
Deal found 12/3£607

Find flights from Southampton to Illinois within your budget

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 March 2025.

Fly from

Southampton

Fly to

Illinois

Route

Depart

Return

Price

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Wed 23/4

09:10-18:15

2 stops15h 05m

Chicago O'Hare Intl

Wed 30/4

19:25-19:30

2 stops18h 05m

£521

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sat 26/4

09:20-14:10

1 stop10h 50m

Chicago O'Hare Intl

Sat 3/5

10:05-08:45

2 stops16h 40m

£589

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Wed 23/4

17:35-14:10

1 stop26h 35m

Chicago O'Hare Intl

Wed 30/4

16:50-08:45

1 stop9h 55m

£595

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Wed 23/4

09:20-22:22

2 stops19h 02m

Chicago Midway

Wed 30/4

17:59-17:00

2 stops17h 01m

£603

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sat 26/4

09:40-19:00

1 stop15h 20m

Chicago O'Hare Intl

Sat 3/5

15:45-08:35

1 stop10h 50m

£607

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sat 10/5

09:20-14:10

1 stop10h 50m

£1,264

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Sat 10/5

09:20-21:28

2 stops18h 08m

£1,269

Flights are sorted by cheapest return flights first.

Deals found on 12/3

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.

Travel insights for flights from Southampton to Illinois

Get recent, data-driven insights about flights from Southampton to Illinois including ideal travel times, pricing trends, and more.

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 March 2025.
Delta
8.0
Very Good
7,953 reviews
Check prices

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
7,953 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,320 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Aer Lingus
7.0
Good
1,064 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Crew

8.5

Entertainment

7.9

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Southampton to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Southampton to Illinois?

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Why should you use Cheapflights to find cheap flight tickets from Southampton to Illinois?

Cheapflights helps you find that perfect flight to Illinois from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Southampton to Illinois with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Southampton to Illinois flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Southampton to Illinois become cheaper?

Not ready to book yet? You can track prices for flights from Southampton to Illinois on Cheapflights with our Price Alert feature and get notified when better prices are available.

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