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Cheap flights from Chicago to London from $352

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 5/25. 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
0 bags

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Find the cheapest flights from Chicago to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
4:20 pm - 4:50 pm
ORD
-
SOU
18h 30m
1 stop
Virgin Atlantic Logo
9:05 am - 2:15 pm
SOU
-
ORD
11h 10m
1 stop
$753Virgin Atlantic
dom, apr 5 - mar, apr 21
Aer Lingus Logo
3:45 pm - 8:40 am
ORD
-
SOU
10h 55m
1 stop
Aer Lingus Logo
9:10 am - 7:15 pm
SOU
-
ORD
16h 05m
1 stop
$761Aer Lingus
gio, apr 9 - gio, apr 16
Delta Logo
5:25 pm - 5:00 pm
ORD
-
SOU
18h 35m
1 stop
Delta Logo
5:35 pm - 3:20 pm
SOU
-
ORD
26h 45m
1 stop
$783Delta
lun, mar 9 - mar, mar 17
Delta Logo
5:25 pm - 8:20 am
ORD
-
SOU
9h 55m
1 stop
Delta Logo
8:50 am - 3:20 pm
SOU
-
ORD
11h 30m
1 stop
$784Delta
lun, mar 16 - mer, mar 25
Delta Logo
5:30 am - 8:20 am
ORD
-
SOU
21h 50m
2 stops
Delta Logo
8:50 am - 3:20 pm
SOU
-
ORD
11h 30m
1 stop
$788Delta
mar, mar 10 - mer, mar 18
Delta Logo
4:20 pm - 8:35 am
ORD
-
SOU
10h 15m
1 stop
Delta Logo
9:05 am - 2:15 pm
SOU
-
ORD
11h 10m
1 stop
$789Delta
dom, apr 5 - mar, apr 21
Delta Logo
5:25 pm - 8:20 am
ORD
-
SOU
9h 55m
1 stop
Delta Logo
8:50 am - 8:17 pm
SOU
-
ORD
16h 27m
2 stops
$793Delta
lun, mar 9 - gio, mar 19
Delta Logo
9:30 am - 4:50 pm
MDW
-
SOU
25h 20m
2 stops
Delta Logo
5:20 pm - 4:26 pm
SOU
-
MDW
29h 06m
2 stops
$794Delta
dom, apr 5 - mar, apr 21
KLM Logo
1:10 pm - 8:35 am
MDW
-
SOU
13h 25m
2 stops
KLM Logo
9:05 am - 6:36 pm
SOU
-
MDW
15h 31m
2 stops
$885KLM
dom, apr 5 - mar, apr 21
KLM Logo
7:16 pm - 4:50 pm
MDW
-
SOU
15h 34m
2 stops
KLM Logo
9:05 am - 6:36 pm
SOU
-
MDW
15h 31m
2 stops
$1,300KLM
lun, apr 13 - lun, apr 20

Aer Lingus flights from Chicago to Southampton

Our best Aer Lingus deals on Chicago to Southampton flight tickets
Aer Lingus
Apr 9
ORD3:45 pmChicago O'Hare Intl
10h 55m
1 stop
SOU8:40 amSouthampton Eastleigh
Apr 16
SOU9:10 amSouthampton Eastleigh
16h 05m
1 stop
ORD7:15 pmChicago O'Hare Intl
$761
Aer Lingus
Apr 11
ORD9:00 pmChicago O'Hare Intl
13h 50m
1 stop
SOU4:50 pmSouthampton Eastleigh
Apr 18
SOU9:10 amSouthampton Eastleigh
16h 05m
1 stop
ORD7:15 pmChicago O'Hare Intl
$859
Aer Lingus
Apr 11
ORD3:45 pmChicago O'Hare Intl
10h 50m
1 stop
SOU8:35 amSouthampton Eastleigh
Apr 18
SOU9:10 amSouthampton Eastleigh
16h 05m
1 stop
ORD7:15 pmChicago O'Hare Intl
$888

KLM flights from Chicago to Southampton

Our best KLM deals on Chicago to Southampton flight tickets
KLM
Apr 5
MDW1:10 pmChicago Midway
13h 25m
2 stops
SOU8:35 amSouthampton Eastleigh
Apr 21
SOU9:05 amSouthampton Eastleigh
15h 31m
2 stops
MDW6:36 pmChicago Midway
$885
KLM
Apr 10
ORD4:20 pmChicago O'Hare Intl
10h 25m
1 stop
SOU8:45 amSouthampton Eastleigh
Apr 17
SOU5:20 pmSouthampton Eastleigh
26h 55m
1 stop
ORD2:15 pmChicago O'Hare Intl
$889
KLM
Apr 10
ORD4:20 pmChicago O'Hare Intl
10h 25m
1 stop
SOU8:45 amSouthampton Eastleigh
Apr 17
SOU9:05 amSouthampton Eastleigh
17h 35m
2 stops
ORD8:40 pmChicago O'Hare Intl
$956

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated febbraio 27, 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

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

dom 4/5

4:20 pm-4:50 pm

1 stop18h 30m

Southampton Eastleigh

mar 4/21

9:05 am-2:15 pm

1 stop11h 10m

$753

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

gio 4/9

3:45 pm-8:40 am

1 stop10h 55m

Southampton Eastleigh

gio 4/16

9:10 am-7:15 pm

1 stop16h 05m

$761

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

lun 3/9

5:25 pm-5:00 pm

1 stop18h 35m

Southampton Eastleigh

mar 3/17

5:35 pm-3:20 pm

1 stop26h 45m

$783

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

lun 3/16

5:25 pm-8:20 am

1 stop9h 55m

Southampton Eastleigh

mer 3/25

8:50 am-3:20 pm

1 stop11h 30m

$784

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

mar 3/10

5:30 am-8:20 am

2 stops21h 50m

Southampton Eastleigh

mer 3/18

8:50 am-3:20 pm

1 stop11h 30m

$788

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

dom 4/5

4:20 pm-8:35 am

1 stop10h 15m

Southampton Eastleigh

mar 4/21

9:05 am-2:15 pm

1 stop11h 10m

$789

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

lun 3/9

5:25 pm-8:20 am

1 stop9h 55m

Southampton Eastleigh

gio 3/19

8:50 am-8:17 pm

2 stops16h 27m

$793

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

dom 4/5

9:30 am-4:50 pm

2 stops25h 20m

Southampton Eastleigh

mar 4/21

5:20 pm-4:26 pm

2 stops29h 06m

$794

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

dom 4/5

1:10 pm-8:35 am

2 stops13h 25m

Southampton Eastleigh

mar 4/21

9:05 am-6:36 pm

2 stops15h 31m

$885

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

lun 4/13

7:16 pm-4:50 pm

2 stops15h 34m

Southampton Eastleigh

lun 4/20

9:05 am-6:36 pm

2 stops15h 31m

$1,300

Flights are sorted by cheapest round-trip 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 cheapest airline that flies from Chicago to Southampton Eastleigh?

Aer Lingus is the most popular carrier operating from Chicago to Southampton Eastleigh

What airlines fly to Southampton?

British Airways, Iberia and American Airlines are the top three most popular airlines that fly to Southampton from Chicago according to our data. British Airways is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Southampton. Keep in mind that there are 18 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

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 round-trip 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.
Search flight deals

  • How far is Chicago to Southampton Eastleigh by plane?

    Chicago and Southampton Eastleigh are 3914.9 mi apart from one another. 10h 25m is a normal flight duration for this route.

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

    Prices for flights from Chicago to Southampton Eastleigh Airport were last updated today.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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.

  • What is the most popular airline from Chicago to Southampton?

Traveling 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?

Yes. All flights to Southampton from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Chicago to Southampton flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Chicago to Southampton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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dom 3/29
dom 4/5
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