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Cheap flights from Chicago to London from $306

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 7/1. 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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Find the cheapest flights from Chicago to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:45 am - 7:30 pm
ORD
-
SOU
28h 45m
3 stops
Multiple Airlines Logo
2:15 pm - 2:45 pm
SOU
-
ORD
30h 30m
2 stops
$953Multiple Airlines
Sat, Aug 8 - Tue, Aug 25
Multiple Airlines Logo
7:25 pm - 7:30 pm
ORD
-
SOU
18h 05m
2 stops
Multiple Airlines Logo
2:15 pm - 2:45 pm
SOU
-
ORD
30h 30m
2 stops
$965Multiple Airlines
Sat, Aug 8 - Tue, Aug 25
Multiple Airlines Logo
4:45 pm - 7:40 pm
ORD
-
SOU
20h 55m
2 stops
Multiple Airlines Logo
2:15 pm - 4:00 pm
SOU
-
ORD
31h 45m
2 stops
$1,003Multiple Airlines
Thu, Jul 30 - Tue, Aug 11
Delta Logo
4:20 pm - 8:45 am
ORD
-
SOU
10h 25m
1 stop
Delta Logo
5:20 pm - 2:15 pm
SOU
-
ORD
26h 55m
1 stop
$1,008Delta
Tue, Sep 1 - Thu, Sep 17
Delta Logo
4:20 pm - 8:45 am
ORD
-
SOU
10h 25m
1 stop
Delta Logo
9:05 am - 2:15 pm
SOU
-
ORD
11h 10m
1 stop
$1,012Delta
Tue, Sep 8 - Fri, Sep 18
Delta Logo
6:25 pm - 4:50 pm
ORD
-
SOU
16h 25m
2 stops
Delta Logo
9:05 am - 2:15 pm
SOU
-
ORD
11h 10m
1 stop
$1,013Delta
Tue, Sep 1 - Fri, Sep 18
KLM Logo
12:41 pm - 8:45 am
MDW
-
SOU
14h 04m
2 stops
KLM Logo
9:15 am - 10:36 pm
SOU
-
MDW
19h 21m
2 stops
$1,242KLM
Tue, Jul 28 - Sun, Aug 9
KLM Logo
1:18 pm - 8:45 am
MDW
-
SOU
13h 27m
2 stops
KLM Logo
9:15 am - 10:36 pm
SOU
-
MDW
19h 21m
2 stops
$1,245KLM
Tue, Jul 28 - Sun, Aug 9
KLM Logo
11:05 am - 8:45 am
MDW
-
SOU
15h 40m
2 stops
KLM Logo
9:15 am - 10:36 pm
SOU
-
MDW
19h 21m
2 stops
$1,246KLM
Tue, Jul 28 - Sun, Aug 9
KLM Logo
11:05 am - 8:45 am
MDW
-
SOU
15h 40m
2 stops
KLM Logo
9:15 am - 10:36 pm
SOU
-
MDW
19h 21m
2 stops
$1,888KLM
Tue, Jul 28 - Sun, Aug 9

Delta flights from Chicago to Southampton

Our best Delta deals on Chicago to Southampton flight tickets
Delta
Sep 1
ORD4:20 pmChicago O'Hare Intl
10h 25m
1 stop
SOU8:45 amSouthampton Eastleigh
Sep 17
SOU5:20 pmSouthampton Eastleigh
26h 55m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,008
Delta
Sep 8
ORD4:20 pmChicago O'Hare Intl
10h 25m
1 stop
SOU8:45 amSouthampton Eastleigh
Sep 18
SOU9:05 amSouthampton Eastleigh
11h 10m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,012
Delta
Sep 1
ORD3:31 pmChicago O'Hare Intl
19h 19m
2 stops
SOU4:50 pmSouthampton Eastleigh
Sep 23
SOU5:20 pmSouthampton Eastleigh
26h 55m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,013

KLM flights from Chicago to Southampton

Our best KLM deals on Chicago to Southampton flight tickets
KLM
Nov 15
ORD10:40 amChicago O'Hare Intl
15h 30m
2 stops
SOU8:10 amSouthampton Eastleigh
Nov 21
SOU9:25 amSouthampton Eastleigh
18h 08m
2 stops
ORD9:33 pmChicago O'Hare Intl
$1,073
KLM
Sep 23
ORD11:17 amChicago O'Hare Intl
15h 18m
2 stops
SOU8:35 amSouthampton Eastleigh
Oct 10
SOU9:20 amSouthampton Eastleigh
18h 13m
2 stops
ORD9:33 pmChicago O'Hare Intl
$1,075
KLM
Sep 24
ORD4:20 pmChicago O'Hare Intl
18h 30m
1 stop
SOU4:50 pmSouthampton Eastleigh
Oct 10
SOU5:20 pmSouthampton Eastleigh
26h 55m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,111

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 June 3, 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 round-trip

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sat 8/8

8:45 am-7:30 pm

3 stops28h 45m

Southampton Eastleigh

Tue 8/25

2:15 pm-2:45 pm

2 stops30h 30m

$953

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sat 8/8

7:25 pm-7:30 pm

2 stops18h 05m

Southampton Eastleigh

Tue 8/25

2:15 pm-2:45 pm

2 stops30h 30m

$965

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 7/30

4:45 pm-7:40 pm

2 stops20h 55m

Southampton Eastleigh

Tue 8/11

2:15 pm-4:00 pm

2 stops31h 45m

$1,003

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 9/1

4:20 pm-8:45 am

1 stop10h 25m

Southampton Eastleigh

Thu 9/17

5:20 pm-2:15 pm

1 stop26h 55m

$1,008
Quickest round-trip

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 9/8

4:20 pm-8:45 am

1 stop10h 25m

Southampton Eastleigh

Fri 9/18

9:05 am-2:15 pm

1 stop11h 10m

$1,012

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 9/1

6:25 pm-4:50 pm

2 stops16h 25m

Southampton Eastleigh

Fri 9/18

9:05 am-2:15 pm

1 stop11h 10m

$1,013

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Tue 7/28

12:41 pm-8:45 am

2 stops14h 04m

Southampton Eastleigh

Sun 8/9

9:15 am-10:36 pm

2 stops19h 21m

$1,242

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Tue 7/28

1:18 pm-8:45 am

2 stops13h 27m

Southampton Eastleigh

Sun 8/9

9:15 am-10:36 pm

2 stops19h 21m

$1,245

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Tue 7/28

11:05 am-8:45 am

2 stops15h 40m

Southampton Eastleigh

Sun 8/9

9:15 am-10:36 pm

2 stops19h 21m

$1,246

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Tue 7/28

11:05 am-8:45 am

2 stops15h 40m

Southampton Eastleigh

Sun 8/9

9:15 am-10:36 pm

2 stops19h 21m

$1,888

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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.
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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. 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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