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Cheap flights from Chicago O'Hare Intl Airport to London from $512

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 6/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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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.
Delta Logo
4:25 pm - 8:50 am
ORD
-
SOU
10h 25m1 stop
Delta Logo
5:40 pm - 4:41 pm
SOU
-
ORD
29h 01m2 stops
$780Delta
Mon, Feb 16 - Mon, Feb 23
Delta Logo
12:29 pm - 8:50 am
ORD
-
SOU
14h 21m2 stops
Delta Logo
5:40 pm - 4:41 pm
SOU
-
ORD
29h 01m2 stops
$784Delta
Sun, Feb 15 - Mon, Feb 23
Multiple Airlines Logo
4:20 pm - 7:40 pm
ORD
-
SOU
21h 20m2 stops
Multiple Airlines Logo
8:10 pm - 1:25 pm
SOU
-
ORD
23h 15m2 stops
$787Multiple Airlines
Thu, Feb 12 - Thu, Feb 19
KLM Logo
4:25 pm - 8:45 am
ORD
-
SOU
10h 20m1 stop
KLM Logo
9:00 am - 2:20 pm
SOU
-
ORD
11h 20m1 stop
$820KLM
Fri, Feb 13 - Fri, Feb 20
Virgin Atlantic Logo
10:35 am - 8:25 am
ORD
-
SOU
15h 50m2 stops
Virgin Atlantic Logo
5:35 pm - 2:20 pm
SOU
-
ORD
26h 45m1 stop
$824Virgin Atlantic
Thu, Feb 12 - Thu, Feb 19
KLM Logo
4:25 pm - 8:45 am
ORD
-
SOU
10h 20m1 stop
KLM Logo
9:00 am - 11:56 pm
SOU
-
ORD
20h 56m2 stops
$830KLM
Fri, Feb 13 - Fri, Feb 20
Delta Logo
11:17 am - 8:50 am
ORD
-
SOU
15h 33m2 stops
Delta Logo
5:45 pm - 2:20 pm
SOU
-
ORD
26h 35m1 stop
$833Delta
Sun, Jan 18 - Sun, Jan 25
Delta Logo
7:01 am - 8:50 am
ORD
-
SOU
19h 49m2 stops
Delta Logo
5:45 pm - 6:49 pm
SOU
-
ORD
31h 04m2 stops
$843Delta
Sun, Jan 18 - Sun, Jan 25
Delta Logo
4:20 pm - 8:35 am
ORD
-
SOU
10h 15m1 stop
Delta Logo
9:15 am - 2:15 pm
SOU
-
ORD
11h 00m1 stop
$884Delta
Thu, Apr 30 - Sun, May 10
Delta Logo
8:55 am - 8:35 am
ORD
-
SOU
17h 40m2 stops
Delta Logo
9:15 am - 2:15 pm
SOU
-
ORD
11h 00m1 stop
$889Delta
Thu, Apr 30 - Sun, May 10

British Airways flights from Chicago O'Hare Intl Airport to Southampton

Our best British Airways deals on Chicago O'Hare Intl Airport to Southampton flight tickets
British Airways
Feb 12
ORD9:45 pmChicago O'Hare Intl
36h 55m
3 stops
SOU4:40 pmSouthampton Eastleigh
Feb 19
SOU8:40 amSouthampton Eastleigh
16h 35m
2 stops
ORD7:15 pmChicago O'Hare Intl
$4,700
Find similar
British Airways
Jan 11
ORD9:45 pmChicago O'Hare Intl
13h 45m
2 stops
SOU5:30 pmSouthampton Eastleigh
Jan 17
SOU9:30 amSouthampton Eastleigh
15h 45m
1 stop
ORD7:15 pmChicago O'Hare Intl
$4,998
Find similar
British Airways
Apr 12
ORD10:35 pmChicago O'Hare Intl
16h 10m
2 stops
SOU8:45 pmSouthampton Eastleigh
Apr 20
SOU9:10 amSouthampton Eastleigh
16h 05m
1 stop
ORD7:15 pmChicago O'Hare Intl
$5,015
Find similar

KLM flights from Chicago O'Hare Intl Airport to Southampton

Our best KLM deals on Chicago O'Hare Intl Airport to Southampton flight tickets
KLM
Feb 13
ORD4:25 pmChicago O'Hare Intl
10h 20m
1 stop
SOU8:45 amSouthampton Eastleigh
Feb 20
SOU9:00 amSouthampton Eastleigh
11h 20m
1 stop
ORD2:20 pmChicago O'Hare Intl
$820
Find similar
KLM
Feb 13
ORD4:25 pmChicago O'Hare Intl
10h 20m
1 stop
SOU8:45 amSouthampton Eastleigh
Feb 20
SOU9:00 amSouthampton Eastleigh
20h 56m
2 stops
ORD11:56 pmChicago O'Hare Intl
$830
Find similar
KLM
Feb 13
ORD10:36 amChicago O'Hare Intl
16h 09m
2 stops
SOU8:45 amSouthampton Eastleigh
Feb 20
SOU9:00 amSouthampton Eastleigh
17h 44m
2 stops
ORD8:44 pmChicago O'Hare Intl
$892
Find similar

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 December 31, 2025.
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

Mon 2/16

4:25 pm-8:50 am

1 stop10h 25m

Southampton Eastleigh

Mon 2/23

5:40 pm-4:41 pm

2 stops29h 01m

$780

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 2/15

12:29 pm-8:50 am

2 stops14h 21m

Southampton Eastleigh

Mon 2/23

5:40 pm-4:41 pm

2 stops29h 01m

$784

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 2/12

4:20 pm-7:40 pm

2 stops21h 20m

Southampton Eastleigh

Thu 2/19

8:10 pm-1:25 pm

2 stops23h 15m

$787

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 2/13

4:25 pm-8:45 am

1 stop10h 20m

Southampton Eastleigh

Fri 2/20

9:00 am-2:20 pm

1 stop11h 20m

$820

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 2/12

10:35 am-8:25 am

2 stops15h 50m

Southampton Eastleigh

Thu 2/19

5:35 pm-2:20 pm

1 stop26h 45m

$824

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 2/13

4:25 pm-8:45 am

1 stop10h 20m

Southampton Eastleigh

Fri 2/20

9:00 am-11:56 pm

2 stops20h 56m

$830

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 1/18

11:17 am-8:50 am

2 stops15h 33m

Southampton Eastleigh

Sun 1/25

5:45 pm-2:20 pm

1 stop26h 35m

$833

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 1/18

7:01 am-8:50 am

2 stops19h 49m

Southampton Eastleigh

Sun 1/25

5:45 pm-6:49 pm

2 stops31h 04m

$843

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 4/30

4:20 pm-8:35 am

1 stop10h 15m

Southampton Eastleigh

Sun 5/10

9:15 am-2:15 pm

1 stop11h 00m

$884

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 4/30

8:55 am-8:35 am

2 stops17h 40m

Southampton Eastleigh

Sun 5/10

9:15 am-2:15 pm

1 stop11h 00m

$889

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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 is the cheapest airline that flies from Chicago O'Hare Intl to Southampton Eastleigh?

Aer Lingus is the most popular carrier operating from Chicago O'Hare Intl to Southampton Eastleigh

What airlines fly to Southampton?

British Airways, Iberia and United 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 many operators does momondo search for flights from Chicago O'Hare Intl Airport to Southampton Eastleigh Airport?

  • 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.

  • What is the most popular airline from Chicago O'Hare Intl Airport to Southampton?

Best airlines flying from Chicago O'Hare Intl Airport to Southampton

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Southampton with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom $653Free CancellationRating
7.2
1,416 reviews
Search Aer Lingus flights

Traveling to a place near London?

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