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Cheap flights from Chicago O'Hare Intl Airport to London from $469

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 4/28. 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.
KLM Logo
10:36 am - 8:20 am
ORD
-
SOU
15h 44m
2 stops
KLM Logo
6:05 pm - 2:20 pm
SOU
-
ORD
26h 15m
1 stop
$830KLM
Thu, Feb 26 - Thu, Mar 5
KLM Logo
10:36 am - 8:20 am
ORD
-
SOU
15h 44m
2 stops
KLM Logo
8:50 am - 9:01 pm
SOU
-
ORD
18h 11m
2 stops
$840KLM
Thu, Feb 26 - Thu, Mar 5
Aer Lingus Logo
9:00 pm - 8:45 am
ORD
-
SOU
29h 45m
1 stop
Aer Lingus Logo
8:10 pm - 7:15 pm
SOU
-
ORD
29h 05m
1 stop
$992Aer Lingus
Thu, Feb 26 - Thu, Mar 5
Delta Logo
5:25 pm - 5:25 pm
ORD
-
SOU
19h 00m
1 stop
Delta Logo
8:50 am - 3:20 pm
SOU
-
ORD
11h 30m
1 stop
$1,086Delta
Wed, Mar 18 - Fri, Mar 27
Delta Logo
10:40 am - 5:25 pm
ORD
-
SOU
25h 45m
2 stops
Delta Logo
8:50 am - 3:20 pm
SOU
-
ORD
11h 30m
1 stop
$1,091Delta
Wed, Mar 18 - Fri, Mar 27
Delta Logo
5:25 pm - 8:20 am
ORD
-
SOU
9h 55m
1 stop
Delta Logo
8:50 am - 9:49 pm
SOU
-
ORD
41h 59m
2 stops
$1,096Delta
Wed, Mar 18 - Thu, Mar 26
Delta Logo
10:40 am - 5:25 pm
ORD
-
SOU
25h 45m
2 stops
Delta Logo
8:50 am - 9:26 pm
SOU
-
ORD
17h 36m
2 stops
$1,101Delta
Wed, Mar 18 - Fri, Mar 27
Multiple Airlines Logo
6:51 pm - 7:40 pm
ORD
-
SOU
18h 49m
3 stops
Multiple Airlines Logo
2:15 pm - 8:00 pm
SOU
-
ORD
35h 45m
2 stops
$1,137Multiple Airlines
Thu, Feb 26 - Thu, Mar 5
Aer Lingus Logo
3:34 pm - 7:30 pm
ORD
-
SOU
21h 56m
2 stops
Aer Lingus Logo
9:10 am - 8:02 pm
SOU
-
ORD
16h 52m
2 stops
$1,168Aer Lingus
Sat, Jul 18 - Sat, Aug 1
Multiple Airlines Logo
12:50 pm - 4:45 pm
ORD
-
SOU
22h 55m
2 stops
Multiple Airlines Logo
12:00 pm - 11:05 am
SOU
-
ORD
28h 05m
2 stops
$1,188Multiple Airlines
Fri, Mar 13 - Fri, Mar 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
Feb 26
ORD9:00 pmChicago O'Hare Intl
29h 45m
1 stop
SOU8:45 amSouthampton Eastleigh
Mar 5
SOU8:10 pmSouthampton Eastleigh
29h 05m
1 stop
ORD7:15 pmChicago O'Hare Intl
$992
Aer Lingus
Jul 18
ORD3:34 pmChicago O'Hare Intl
21h 56m
2 stops
SOU7:30 pmSouthampton Eastleigh
Aug 1
SOU9:10 amSouthampton Eastleigh
16h 52m
2 stops
ORD8:02 pmChicago O'Hare Intl
$1,168
Aer Lingus
Jul 18
ORD10:35 pmChicago O'Hare Intl
14h 55m
1 stop
SOU7:30 pmSouthampton Eastleigh
Aug 1
SOU9:10 amSouthampton Eastleigh
16h 52m
2 stops
ORD8:02 pmChicago O'Hare Intl
$1,189

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 17
ORD9:45 pmChicago O'Hare Intl
13h 45m
2 stops
SOU5:30 pmSouthampton Eastleigh
Feb 24
SOU12:25 pmSouthampton Eastleigh
12h 50m
1 stop
ORD7:15 pmChicago O'Hare Intl
$5,001
British Airways
Mar 19
ORD10:45 pmChicago O'Hare Intl
13h 45m
2 stops
SOU5:30 pmSouthampton Eastleigh
Mar 26
SOU9:30 amSouthampton Eastleigh
14h 25m
1 stop
ORD6:55 pmChicago O'Hare Intl
$5,002
British Airways
Jul 1
ORD8:35 pmChicago O'Hare Intl
15h 05m
2 stops
SOU5:40 pmSouthampton Eastleigh
Jul 22
SOU9:10 amSouthampton Eastleigh
16h 05m
1 stop
ORD7:15 pmChicago O'Hare Intl
$5,026

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 January 29, 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

Thu 2/26

10:36 am-8:20 am

2 stops15h 44m

Southampton Eastleigh

Thu 3/5

6:05 pm-2:20 pm

1 stop26h 15m

$830

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 2/26

10:36 am-8:20 am

2 stops15h 44m

Southampton Eastleigh

Thu 3/5

8:50 am-9:01 pm

2 stops18h 11m

$840

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 2/26

9:00 pm-8:45 am

1 stop29h 45m

Southampton Eastleigh

Thu 3/5

8:10 pm-7:15 pm

1 stop29h 05m

$992

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 3/18

5:25 pm-5:25 pm

1 stop19h 00m

Southampton Eastleigh

Fri 3/27

8:50 am-3:20 pm

1 stop11h 30m

$1,086

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 3/18

10:40 am-5:25 pm

2 stops25h 45m

Southampton Eastleigh

Fri 3/27

8:50 am-3:20 pm

1 stop11h 30m

$1,091

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 3/18

5:25 pm-8:20 am

1 stop9h 55m

Southampton Eastleigh

Thu 3/26

8:50 am-9:49 pm

2 stops41h 59m

$1,096

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 3/18

10:40 am-5:25 pm

2 stops25h 45m

Southampton Eastleigh

Fri 3/27

8:50 am-9:26 pm

2 stops17h 36m

$1,101

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 2/26

6:51 pm-7:40 pm

3 stops18h 49m

Southampton Eastleigh

Thu 3/5

2:15 pm-8:00 pm

2 stops35h 45m

$1,137

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sat 7/18

3:34 pm-7:30 pm

2 stops21h 56m

Southampton Eastleigh

Sat 8/1

9:10 am-8:02 pm

2 stops16h 52m

$1,168

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 3/13

12:50 pm-4:45 pm

2 stops22h 55m

Southampton Eastleigh

Fri 3/20

12:00 pm-11:05 am

2 stops28h 05m

$1,188

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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?

Delta and Aer Lingus are the most popular carriers operating from Chicago O'Hare Intl 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 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 55m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Southampton takes 10h 55m
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 55m, 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 $682Free CancellationRating
7.2
1,443 reviews
Search Aer Lingus flights
KLMPriceFrom $884Free CancellationRating
7.7
1,443 reviews
Search KLM flights

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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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