Cheap flights from Illinois to Southampton from £254
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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
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 18 September 2025.
Round-trip from | £539 |
---|---|
One-way from | £254 |
Popular in | June |
Cheapest in | February |
Average price | £483 |
Find flight deals from Illinois to Southampton
Cheapest flights from Illinois to SouthamptonExplore 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 18 September 2025.
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 18 September 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Illinois to Southampton that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
ChicagoSouthampton
ORD - SOU
ORDSOU
Chicago O'Hare Intl
Wed 3/12
16:25-08:20
1 stop9h 55m
Southampton Eastleigh
Wed 10/12
08:40-14:20
1 stop11h 40m
ChicagoSouthampton
ORD - SOU
ORDSOU
Chicago O'Hare Intl
Wed 3/12
15:45-17:25
2 stops19h 40m
Southampton Eastleigh
Tue 9/12
17:30-14:20
1 stop26h 50m
ChicagoSouthampton
ORD - SOU
ORDSOU
Chicago O'Hare Intl
Wed 3/12
16:25-08:20
1 stop9h 55m
Southampton Eastleigh
Mon 8/12
08:40-14:20
1 stop11h 40m
ChicagoSouthampton
ORD - SOU
ORDSOU
Chicago O'Hare Intl
Wed 3/12
16:25-08:20
1 stop9h 55m
Southampton Eastleigh
Sun 7/12
09:30-14:20
1 stop10h 50m
ChicagoSouthampton
ORD - SOU
ORDSOU
Chicago O'Hare Intl
Fri 31/10
13:25-08:50
2 stops14h 25m
Southampton Eastleigh
Fri 7/11
08:40-14:20
1 stop11h 40m
ChicagoSouthampton
ORD - SOU
ORDSOU
Chicago O'Hare Intl
Wed 25/2
16:25-08:20
1 stop9h 55m
Southampton Eastleigh
Sun 1/3
17:45-14:20
1 stop26h 35m
ChicagoSouthampton
ORD - SOU
ORDSOU
Chicago O'Hare Intl
Wed 25/2
14:10-17:25
2 stops21h 15m
Southampton Eastleigh
Sun 1/3
09:30-23:54
2 stops44h 24m
ChicagoSouthampton
MDW - SOU
MDWSOU
Chicago Midway
Wed 25/2
06:00-17:25
2 stops29h 25m
Southampton Eastleigh
Sun 1/3
09:30-21:46
2 stops18h 16m
ChicagoSouthampton
MDW - SOU
MDWSOU
Chicago Midway
Mon 29/9
18:30-17:00
2 stops16h 30m
Southampton Eastleigh
Thu 2/10
17:35-18:35
2 stops31h 00m
ChicagoSouthampton
MDW - SOU
MDWSOU
Chicago Midway
Mon 29/9
09:20-08:45
2 stops17h 25m
Southampton Eastleigh
Thu 2/10
09:20-18:35
2 stops15h 15m
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.
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.
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.
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Alternative routes for Illinois to Southampton
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Why should you use Cheapflights to find cheap flight tickets from Illinois to Southampton?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southampton from Illinois.
Can Cheapflights find flights from Illinois to Southampton with no change fees?
Need flexible booking options for your flight to Southampton from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Illinois to Southampton become cheaper?
Yes, Cheapflights offers price alerts on Illinois to Southampton flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.