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$471+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — ORD
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
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Cheap flight deals from Southampton to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

August

Cheapest in

February

Average price

$635
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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Highest demand for flights based on searches. 12% potential increase in price ($101 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Find flight deals from Southampton to Illinois

One-way flights from Southampton to Illinois
Search for one-way flight options from Southampton to Illinois. Find affordable one-way fares based on user searches. Data last updated January 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 1/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2012:35 pmSOU - MDW
3 stops51h 13mMultiple Airlines
Deal found 1/30$471
This Mytrip deal was found by Cheapflights users on 1/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/208:10 pmSOU - ORD
2 stops25h 20mMultiple Airlines
Deal found 1/30$565
This StudentUniverse deal was found by Cheapflights users on 1/30. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/209:30 amSOU - ORD
1 stop15h 45mAer Lingus
Deal found 1/30$575
This KLM deal was found by Cheapflights users on 1/30. 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.
Sat 4/199:20 amSOU - MDW
2 stops14h 44mKLM
Deal found 1/30$1,683

Find flights from Southampton to Illinois within your budget

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Thu 2/20

12:35 pm-9:48 am

3 stops51h 13m

$471

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Thu 2/20

8:10 pm-3:30 pm

2 stops25h 20m

$565

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Thu 2/20

9:30 am-7:15 pm

1 stop15h 45m

$575

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Sat 4/19

9:20 am-6:04 pm

2 stops14h 44m

$1,683

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

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, 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 $325). 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 January 30, 2025.
KLM
7.8
Good
1,335 reviews

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,335 reviews
KLM
7.8
Good
1,335 reviews

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus
7.1
Good
1,077 reviews
KLM
7.8
Good
1,335 reviews

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

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.

  • 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 $325). 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.

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