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$352+ Cheap flights from Southampton (SOU) to Illinois

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ORD
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$830
(TravelUp)

One-way from

$352
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$676
Provider with most accurate pricing for London (LON)-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for London (LON)-Chicago (CHI) flights.
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From Southampton Eastleigh to Illinois
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One-way flight from Southampton Eastleigh to Illinois
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Highest demand for flights based on searches. 12% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 29, 2025.

This KLM deal was found by Cheapflights users on 4/29. 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.
Thu 5/229:20 amSOU - ORD
1 stop10h 50mKLM
Sun 5/2511:03 amORD - SOU
2 stops15h 42mKLM
Deal found 4/29$857

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated April 29, 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

Thu 5/22

9:20 am-2:10 pm

1 stop10h 50m

Chicago O'Hare Intl

Sun 5/25

11:03 am-8:45 am

2 stops15h 42m

$857

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Sat 7/12

8:25 am-8:45 am

3 stops54h 20m

$596

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sat 7/12

8:05 am-4:15 pm

3 stops38h 10m

$726

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sat 7/12

9:40 am-2:00 pm

1 stop34h 20m

$837

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Tue 7/8

6:25 pm-2:40 pm

1 stop26h 15m

$1,688

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Sat 7/12

9:20 am-6:40 pm

2 stops15h 20m

$1,695

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 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 Southampton to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Southampton to Illinois (average of $245). Flying from Southampton to Illinois in March is currently the most expensive (average of $321). 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 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 April 29, 2025.
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
1,076 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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) is the airport you will fly out of if you book a flight from Southampton to Illinois. It is only a 3.5 mi journey to Eastleigh (SOU) from Southampton’s city center.

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

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $620. However, be on the lookout for offers from Delta and KLM, as they are both options that can get you from Southampton to Illinois for a low price.

  • 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 vacation 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, August is the cheapest month in which you can book a flight from Southampton to Illinois (average of $245). Flying from Southampton to Illinois in March is currently the most expensive (average of $321). 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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