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Cheap flights from Chicago O'Hare Intl Airport to London from $391

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 O'Hare Intl Airport to London departing on 5/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
3:45 pm - 8:05 am
ORD
-
SOU
10h 20m
1 stop
Aer Lingus Logo
9:10 am - 7:15 pm
SOU
-
ORD
16h 05m
1 stop
$724Aer Lingus
Tue, Apr 14 - Tue, Apr 21
Delta Logo
4:20 pm - 8:35 am
ORD
-
SOU
10h 15m
1 stop
Delta Logo
5:20 pm - 2:15 pm
SOU
-
ORD
26h 55m
1 stop
$809Delta
Sun, Apr 12 - Thu, Apr 23
KLM Logo
4:20 pm - 8:35 am
ORD
-
SOU
10h 15m
1 stop
KLM Logo
5:20 pm - 2:30 pm
SOU
-
ORD
27h 10m
1 stop
$811KLM
Tue, Mar 31 - Tue, Apr 7
Delta Logo
8:55 am - 4:50 pm
ORD
-
SOU
25h 55m
2 stops
Delta Logo
5:20 pm - 2:15 pm
SOU
-
ORD
26h 55m
1 stop
$814Delta
Sun, Apr 12 - Thu, Apr 23
KLM Logo
7:14 pm - 4:50 pm
ORD
-
SOU
15h 36m
2 stops
KLM Logo
5:20 pm - 2:30 pm
SOU
-
ORD
27h 10m
1 stop
$816KLM
Tue, Mar 31 - Tue, Apr 7
Delta Logo
4:20 pm - 8:45 am
ORD
-
SOU
10h 25m
1 stop
Delta Logo
6:05 pm - 4:36 pm
SOU
-
ORD
28h 31m
2 stops
$819Delta
Sun, Aug 9 - Mon, Aug 24
Delta Logo
7:00 am - 8:45 am
ORD
-
SOU
19h 45m
2 stops
Delta Logo
6:05 pm - 4:36 pm
SOU
-
ORD
28h 31m
2 stops
$824Delta
Mon, Aug 10 - Mon, Aug 24
Delta Logo
4:20 pm - 8:35 am
ORD
-
SOU
10h 15m
1 stop
Delta Logo
5:20 pm - 2:15 pm
SOU
-
ORD
26h 55m
1 stop
$859Delta
Sun, Apr 12 - Sat, Apr 18
KLM Logo
4:20 pm - 4:50 pm
ORD
-
SOU
18h 30m
1 stop
KLM Logo
5:20 pm - 2:15 pm
SOU
-
ORD
26h 55m
1 stop
$861KLM
Thu, Apr 16 - Thu, Apr 23
KLM Logo
4:50 pm - 4:50 pm
ORD
-
SOU
18h 00m
1 stop
KLM Logo
5:20 pm - 2:15 pm
SOU
-
ORD
26h 55m
1 stop
$862KLM
Mon, Apr 13 - Mon, Apr 20

Aer Lingus flights from Chicago O'Hare Intl Airport to Southampton

Our best Aer Lingus deals on Chicago O'Hare Intl Airport to Southampton flight tickets
Aer Lingus
Apr 14
ORD3:45 pmChicago O'Hare Intl
10h 20m
1 stop
SOU8:05 amSouthampton Eastleigh
Apr 21
SOU9:10 amSouthampton Eastleigh
16h 05m
1 stop
ORD7:15 pmChicago O'Hare Intl
$724
Aer Lingus
Aug 1
ORD3:34 pmChicago O'Hare Intl
19h 16m
2 stops
SOU4:50 pmSouthampton Eastleigh
Aug 22
SOU8:00 pmSouthampton Eastleigh
21h 30m
1 stop
ORD11:30 amChicago O'Hare Intl
$970
Aer Lingus
Mar 31
ORD10:40 pmChicago O'Hare Intl
36h 10m
2 stops
SOU4:50 pmSouthampton Eastleigh
Apr 7
SOU8:00 pmSouthampton Eastleigh
30h 00m
2 stops
ORD8:00 pmChicago O'Hare Intl
$1,022

Delta flights from Chicago O'Hare Intl Airport to Southampton

Our best Delta deals on Chicago O'Hare Intl Airport to Southampton flight tickets
Delta
Apr 12
ORD4:20 pmChicago O'Hare Intl
10h 15m
1 stop
SOU8:35 amSouthampton Eastleigh
Apr 23
SOU5:20 pmSouthampton Eastleigh
26h 55m
1 stop
ORD2:15 pmChicago O'Hare Intl
$809
Delta
Apr 12
ORD8:55 amChicago O'Hare Intl
25h 55m
2 stops
SOU4:50 pmSouthampton Eastleigh
Apr 23
SOU5:20 pmSouthampton Eastleigh
26h 55m
1 stop
ORD2:15 pmChicago O'Hare Intl
$814
Delta
Aug 9
ORD4:20 pmChicago O'Hare Intl
10h 25m
1 stop
SOU8:45 amSouthampton Eastleigh
Aug 24
SOU6:05 pmSouthampton Eastleigh
28h 31m
2 stops
ORD4:36 pmChicago O'Hare Intl
$819

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 March 4, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 4/14

3:45 pm-8:05 am

1 stop10h 20m

Southampton Eastleigh

Tue 4/21

9:10 am-7:15 pm

1 stop16h 05m

$724

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 4/12

4:20 pm-8:35 am

1 stop10h 15m

Southampton Eastleigh

Thu 4/23

5:20 pm-2:15 pm

1 stop26h 55m

$809

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 3/31

4:20 pm-8:35 am

1 stop10h 15m

Southampton Eastleigh

Tue 4/7

5:20 pm-2:30 pm

1 stop27h 10m

$811

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 4/12

8:55 am-4:50 pm

2 stops25h 55m

Southampton Eastleigh

Thu 4/23

5:20 pm-2:15 pm

1 stop26h 55m

$814

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 3/31

7:14 pm-4:50 pm

2 stops15h 36m

Southampton Eastleigh

Tue 4/7

5:20 pm-2:30 pm

1 stop27h 10m

$816

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 8/9

4:20 pm-8:45 am

1 stop10h 25m

Southampton Eastleigh

Mon 8/24

6:05 pm-4:36 pm

2 stops28h 31m

$819

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 8/10

7:00 am-8:45 am

2 stops19h 45m

Southampton Eastleigh

Mon 8/24

6:05 pm-4:36 pm

2 stops28h 31m

$824

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 4/12

4:20 pm-8:35 am

1 stop10h 15m

Southampton Eastleigh

Sat 4/18

5:20 pm-2:15 pm

1 stop26h 55m

$859

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 4/16

4:20 pm-4:50 pm

1 stop18h 30m

Southampton Eastleigh

Thu 4/23

5:20 pm-2:15 pm

1 stop26h 55m

$861

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 4/13

4:50 pm-4:50 pm

1 stop18h 00m

Southampton Eastleigh

Mon 4/20

5:20 pm-2:15 pm

1 stop26h 55m

$862

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 O'Hare Intl Airport 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 airlines fly to Southampton?

British Airways, Iberia and American Airlines are the top three most popular airlines that fly to Southampton from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Southampton according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Southampton (ORD to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Southampton

Fastest flight time

10h 15m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Southampton takes 10h 15m
There are no direct flights from Chicago O'Hare Intl Airport to Southampton. There are no popular flight routes from Chicago O'Hare Intl Airport to Southampton.
Search flight deals

  • How far is Chicago O'Hare Intl to Southampton Eastleigh by plane?

    Southampton Eastleigh is 3920.9 mi away from Chicago O'Hare Intl. Flights usually cover this in 10h 15m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Chicago O'Hare Intl Airport to Southampton Eastleigh Airport refresh daily.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Southampton Eastleigh Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport 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.

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. momondo allows you to filter the results for Chicago to Southampton flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Southampton from Chicago.

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

If you are not ready to book a flight from Chicago to Southampton now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Southampton and let you know when they change.

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