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Cheap flights from Chicago to London from £282

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to London departing on 29/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:45 - 19:30
ORD
-
SOU
21h 45m
1 stop
Multiple Airlines Logo
20:00 - 21:35
SOU
-
ORD
31h 35m
2 stops
£632Multiple Airlines
Wed, 19 Aug - Thu, 3 Sep
Multiple Airlines Logo
15:45 - 19:30
ORD
-
SOU
21h 45m
1 stop
Multiple Airlines Logo
20:00 - 21:35
SOU
-
ORD
31h 35m
2 stops
£633Multiple Airlines
Wed, 19 Aug - Wed, 2 Sep
Multiple Airlines Logo
15:45 - 08:40
ORD
-
SOU
10h 55m
1 stop
Multiple Airlines Logo
20:00 - 21:35
SOU
-
ORD
31h 35m
2 stops
£682Multiple Airlines
Thu, 20 Aug - Thu, 3 Sep
Multiple Airlines Logo
15:45 - 08:40
ORD
-
SOU
10h 55m
1 stop
Multiple Airlines Logo
20:00 - 21:35
SOU
-
ORD
31h 35m
2 stops
£683Multiple Airlines
Thu, 20 Aug - Wed, 2 Sep
Delta Logo
16:20 - 08:45
ORD
-
SOU
10h 25m
1 stop
Delta Logo
17:20 - 14:15
SOU
-
ORD
26h 55m
1 stop
£748Delta
Tue, 1 Sep - Thu, 17 Sep
Delta Logo
16:20 - 08:45
ORD
-
SOU
10h 25m
1 stop
Delta Logo
09:05 - 14:15
SOU
-
ORD
11h 10m
1 stop
£751Delta
Tue, 8 Sep - Fri, 18 Sep
Delta Logo
15:31 - 16:50
ORD
-
SOU
19h 19m
2 stops
Delta Logo
17:20 - 14:15
SOU
-
ORD
26h 55m
1 stop
£752Delta
Tue, 1 Sep - Wed, 23 Sep
KLM Logo
12:41 - 08:45
MDW
-
SOU
14h 04m
2 stops
KLM Logo
09:15 - 22:36
SOU
-
MDW
19h 21m
2 stops
£922KLM
Tue, 28 Jul - Sun, 9 Aug
KLM Logo
13:18 - 08:45
MDW
-
SOU
13h 27m
2 stops
KLM Logo
09:15 - 22:36
SOU
-
MDW
19h 21m
2 stops
£924KLM
Tue, 28 Jul - Sun, 9 Aug
KLM Logo
11:05 - 08:45
MDW
-
SOU
15h 40m
2 stops
KLM Logo
09:15 - 22:36
SOU
-
MDW
19h 21m
2 stops
£925KLM
Tue, 28 Jul - Sun, 9 Aug

Aer Lingus flights from Chicago to Southampton

Our best Aer Lingus deals on Chicago to Southampton flight tickets
Aer Lingus
19 Aug
ORD15:45Chicago O'Hare Intl
21h 45m
1 stop
SOU19:30Southampton Eastleigh
2 Sept
SOU09:20Southampton Eastleigh
15h 55m
1 stop
ORD19:15Chicago O'Hare Intl
£767
Aer Lingus
15 Jul
ORD15:45Chicago O'Hare Intl
10h 55m
1 stop
SOU08:40Southampton Eastleigh
22 Jul
SOU09:20Southampton Eastleigh
15h 55m
1 stop
ORD19:15Chicago O'Hare Intl
£836
Aer Lingus
17 Jun
ORD21:00Chicago O'Hare Intl
13h 50m
1 stop
SOU16:50Southampton Eastleigh
14 Jul
SOU20:00Southampton Eastleigh
29h 15m
1 stop
ORD19:15Chicago O'Hare Intl
£1,205

KLM flights from Chicago to Southampton

Our best KLM deals on Chicago to Southampton flight tickets
KLM
19 Aug
ORD16:50Chicago O'Hare Intl
18h 45m
1 stop
SOU17:35Southampton Eastleigh
3 Sept
SOU17:20Southampton Eastleigh
26h 55m
1 stop
ORD14:15Chicago O'Hare Intl
£792
KLM
23 Sept
ORD11:17Chicago O'Hare Intl
15h 18m
2 stops
SOU08:35Southampton Eastleigh
10 Oct
SOU09:20Southampton Eastleigh
18h 13m
2 stops
ORD21:33Chicago O'Hare Intl
£798
KLM
19 Aug
ORD11:22Chicago O'Hare Intl
15h 23m
2 stops
SOU08:45Southampton Eastleigh
2 Sept
SOU09:15Southampton Eastleigh
20h 47m
2 stops
ORD00:02Chicago O'Hare Intl
£802

momondo Fare Finder

 
Customise your flight search to find flights from Chicago to Southampton 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, momondo users made 279,928 searches. Data last updated 3 June 2026.
Use the filters below to find and compare flights from Chicago to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 19/8

15:45-19:30

1 stop21h 45m

Southampton Eastleigh

Thu 3/9

20:00-21:35

2 stops31h 35m

£632

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 19/8

15:45-19:30

1 stop21h 45m

Southampton Eastleigh

Wed 2/9

20:00-21:35

2 stops31h 35m

£633

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 20/8

15:45-08:40

1 stop10h 55m

Southampton Eastleigh

Thu 3/9

20:00-21:35

2 stops31h 35m

£682

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 20/8

15:45-08:40

1 stop10h 55m

Southampton Eastleigh

Wed 2/9

20:00-21:35

2 stops31h 35m

£683

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 1/9

16:20-08:45

1 stop10h 25m

Southampton Eastleigh

Thu 17/9

17:20-14:15

1 stop26h 55m

£748
Fastest return journey

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 8/9

16:20-08:45

1 stop10h 25m

Southampton Eastleigh

Fri 18/9

09:05-14:15

1 stop11h 10m

£751

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 1/9

15:31-16:50

2 stops19h 19m

Southampton Eastleigh

Wed 23/9

17:20-14:15

1 stop26h 55m

£752

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Tue 28/7

12:41-08:45

2 stops14h 04m

Southampton Eastleigh

Sun 9/8

09:15-22:36

2 stops19h 21m

£922

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Tue 28/7

13:18-08:45

2 stops13h 27m

Southampton Eastleigh

Sun 9/8

09:15-22:36

2 stops19h 21m

£924

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Tue 28/7

11:05-08:45

2 stops15h 40m

Southampton Eastleigh

Sun 9/8

09:15-22:36

2 stops19h 21m

£925

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Chicago to Southampton

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Chicago and Southampton?

When to book flights from Chicago to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Southampton according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chicago to Southampton (CHI to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Southampton

Fastest flight time

10h 25m

Direct flights

None
The fastest flight from Chicago to Southampton takes 10h 25m
There are no direct flights from Chicago to Southampton. There are no popular flight routes from Chicago to Southampton.
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Frequently asked questions about flying from Chicago to Southampton

  • How far is Chicago to Southampton Eastleigh by plane?

    Chicago and Southampton Eastleigh are 3914.9 mi apart from one another. A reasonable flight in good conditions will take 10h 25m.

  • When did momondo last update prices for flights from Chicago to Southampton Eastleigh Airport?

    Prices for flights from Chicago to Southampton Eastleigh Airport refresh daily.

  • How old do you have to be to fly from Chicago to Southampton Eastleigh Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The travel and health documents required for your trip to Southampton Eastleigh Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Southampton Eastleigh Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Southampton?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Southampton. momondo saves you time and could save you money on your trip.

Can I find flights from Chicago to Southampton with flexible booking policies on momondo?

Flights from Chicago to Southampton with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Chicago to Southampton?

momondo helps you find the best flight between Chicago and Southampton by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Chicago to Southampton right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Southampton flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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