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Cheap flights from Chicago to London from $341

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 8/25. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Chicago to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
3:45 pm - 8:40 am
ORD
-
SOU
10h 55m
1 stop
Aer Lingus Logo
9:20 am - 7:15 pm
SOU
-
ORD
15h 55m
1 stop
$855Aer Lingus
Wed, Aug 19 - Wed, Aug 26
Aer Lingus Logo
3:45 pm - 8:40 am
ORD
-
SOU
10h 55m
1 stop
Aer Lingus Logo
9:20 am - 7:15 pm
SOU
-
ORD
15h 55m
1 stop
$856Aer Lingus
Wed, Aug 19 - Wed, Aug 26
Aer Lingus Logo
3:45 pm - 8:40 am
ORD
-
SOU
10h 55m
1 stop
Aer Lingus Logo
9:20 am - 6:25 pm
SOU
-
ORD
15h 05m
1 stop
$901Aer Lingus
Wed, Oct 21 - Mon, Nov 23
Multiple Airlines Logo
3:45 pm - 8:40 am
ORD
-
SOU
10h 55m
1 stop
Multiple Airlines Logo
7:25 pm - 3:30 pm
SOU
-
ORD
50h 05m
2 stops
$906Multiple Airlines
Wed, Oct 21 - Mon, Nov 23
Multiple Airlines Logo
3:55 pm - 8:40 am
ORD
-
SOU
10h 45m
1 stop
Multiple Airlines Logo
7:30 pm - 2:55 pm
SOU
-
ORD
25h 25m
2 stops
$914Multiple Airlines
Sat, Nov 7 - Sun, Nov 15
Aer Lingus Logo
3:45 pm - 8:40 am
ORD
-
SOU
10h 55m
1 stop
Aer Lingus Logo
9:20 am - 7:15 pm
SOU
-
ORD
15h 55m
1 stop
$918Aer Lingus
Wed, Aug 19 - Wed, Aug 26
KLM Logo
1:28 pm - 8:35 am
MDW
-
SOU
13h 07m
2 stops
KLM Logo
8:40 am - 10:10 pm
SOU
-
MDW
19h 30m
2 stops
$1,072KLM
Wed, Oct 21 - Mon, Nov 23
KLM Logo
12:46 pm - 8:45 am
MDW
-
SOU
13h 59m
2 stops
KLM Logo
9:15 am - 10:36 pm
SOU
-
MDW
19h 21m
2 stops
$1,076KLM
Wed, Aug 19 - Wed, Aug 26
Delta Logo
9:24 am - 4:50 pm
MDW
-
SOU
25h 26m
2 stops
Delta Logo
9:15 am - 6:19 pm
SOU
-
MDW
15h 04m
2 stops
$1,118Delta
Sun, Sep 6 - Sun, Sep 20
Delta Logo
1:25 pm - 8:45 am
MDW
-
SOU
13h 20m
2 stops
Delta Logo
9:15 am - 6:01 pm
SOU
-
MDW
14h 46m
2 stops
$1,126Delta
Thu, Aug 27 - Wed, Sep 2

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Delta flights from Chicago to Southampton

Our best Delta deals on Chicago to Southampton flight tickets
Delta
Aug 12
ORD4:50 pmChicago O'Hare Intl
18h 45m
1 stop
SOU5:35 pmSouthampton Eastleigh
Aug 20
SOU9:15 amSouthampton Eastleigh
11h 00m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,062
Delta
Aug 12
ORD10:33 amChicago O'Hare Intl
16h 12m
2 stops
SOU8:45 amSouthampton Eastleigh
Aug 20
SOU6:05 pmSouthampton Eastleigh
26h 10m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,066
Delta
Sep 1
ORD11:22 amChicago O'Hare Intl
15h 23m
2 stops
SOU8:45 amSouthampton Eastleigh
Sep 8
SOU5:20 pmSouthampton Eastleigh
27h 10m
1 stop
ORD2:30 pmChicago O'Hare Intl
$1,067

Aer Lingus flights from Chicago to Southampton

Our best Aer Lingus deals on Chicago to Southampton flight tickets
Aer Lingus
Aug 19
ORD3:45 pmChicago O'Hare Intl
10h 55m
1 stop
SOU8:40 amSouthampton Eastleigh
Aug 26
SOU9:20 amSouthampton Eastleigh
15h 55m
1 stop
ORD7:15 pmChicago O'Hare Intl
$855
Aer Lingus
Aug 19
ORD3:45 pmChicago O'Hare Intl
10h 55m
1 stop
SOU8:40 amSouthampton Eastleigh
Aug 26
SOU9:20 amSouthampton Eastleigh
15h 55m
1 stop
ORD7:15 pmChicago O'Hare Intl
$856
Aer Lingus
Oct 21
ORD3:45 pmChicago O'Hare Intl
10h 55m
1 stop
SOU8:40 amSouthampton Eastleigh
Nov 23
SOU9:20 amSouthampton Eastleigh
15h 05m
1 stop
ORD6:25 pmChicago O'Hare Intl
$901

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 July 18, 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

Wed 8/19

3:45 pm-8:40 am

1 stop10h 55m

Southampton Eastleigh

Wed 8/26

9:20 am-7:15 pm

1 stop15h 55m

$855

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 8/19

3:45 pm-8:40 am

1 stop10h 55m

Southampton Eastleigh

Wed 8/26

9:20 am-7:15 pm

1 stop15h 55m

$856
Quickest round-trip

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 10/21

3:45 pm-8:40 am

1 stop10h 55m

Southampton Eastleigh

Mon 11/23

9:20 am-6:25 pm

1 stop15h 05m

$901

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 10/21

3:45 pm-8:40 am

1 stop10h 55m

Southampton Eastleigh

Mon 11/23

7:25 pm-3:30 pm

2 stops50h 05m

$906

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sat 11/7

3:55 pm-8:40 am

1 stop10h 45m

Southampton Eastleigh

Sun 11/15

7:30 pm-2:55 pm

2 stops25h 25m

$914

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 8/19

3:45 pm-8:40 am

1 stop10h 55m

Southampton Eastleigh

Wed 8/26

9:20 am-7:15 pm

1 stop15h 55m

$918

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Wed 10/21

1:28 pm-8:35 am

2 stops13h 07m

Southampton Eastleigh

Mon 11/23

8:40 am-10:10 pm

2 stops19h 30m

$1,072

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Wed 8/19

12:46 pm-8:45 am

2 stops13h 59m

Southampton Eastleigh

Wed 8/26

9:15 am-10:36 pm

2 stops19h 21m

$1,076

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Sun 9/6

9:24 am-4:50 pm

2 stops25h 26m

Southampton Eastleigh

Sun 9/20

9:15 am-6:19 pm

2 stops15h 04m

$1,118

ChicagoSouthampton

MDW - SOU

MDWSOU

Chicago Midway

Thu 8/27

1:25 pm-8:45 am

2 stops13h 20m

Southampton Eastleigh

Wed 9/2

9:15 am-6:01 pm

2 stops14h 46m

$1,126

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 month to fly to Southampton?

If you don’t want to visit Southampton in December, then you should wait until November to fly from Chicago, when ticket prices are also cheap, with an average price of $0.

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 20m

Direct flights

None
The fastest flight from Chicago to Southampton takes 10h 20m
There are no direct flights from Chicago to Southampton. There are no popular flight routes from Chicago to Southampton.
Search flight deals

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 20m 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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