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Cheap flights from Chicago O'Hare Intl Airport to London from $348

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 10/10. 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 O'Hare Intl Airport to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:25 pm - 7:30 pm
ORD
-
SOU
18h 05m
2 stops
Multiple Airlines Logo
9:20 am - 9:25 pm
SOU
-
ORD
18h 05m
2 stops
$708Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
2:15 pm - 7:30 pm
ORD
-
SOU
23h 15m
2 stops
Multiple Airlines Logo
8:00 pm - 8:29 pm
SOU
-
ORD
30h 29m
2 stops
$757Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
7:25 pm - 4:50 pm
ORD
-
SOU
15h 25m
2 stops
Multiple Airlines Logo
6:05 pm - 6:15 pm
SOU
-
ORD
30h 10m
3 stops
$785Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
3:45 pm - 7:30 pm
ORD
-
SOU
21h 45m
2 stops
Multiple Airlines Logo
8:00 pm - 4:57 pm
SOU
-
ORD
26h 57m
2 stops
$791Multiple Airlines
Fri, Aug 14 - Fri, Aug 21
Multiple Airlines Logo
7:25 pm - 8:45 am
ORD
-
SOU
31h 20m
3 stops
Multiple Airlines Logo
6:05 pm - 6:15 pm
SOU
-
ORD
30h 10m
3 stops
$839Multiple Airlines
Mon, Aug 17 - Mon, Aug 24
Aer Lingus Logo
9:00 pm - 4:50 pm
ORD
-
SOU
13h 50m
1 stop
Aer Lingus Logo
9:20 am - 7:15 pm
SOU
-
ORD
15h 55m
1 stop
$871Aer Lingus
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
7:25 pm - 4:50 pm
ORD
-
SOU
15h 25m
2 stops
Multiple Airlines Logo
9:15 am - 6:15 pm
SOU
-
ORD
15h 00m
2 stops
$880Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
3:45 pm - 4:50 pm
ORD
-
SOU
19h 05m
2 stops
Multiple Airlines Logo
6:05 pm - 4:57 pm
SOU
-
ORD
28h 52m
3 stops
$883Multiple Airlines
Fri, Aug 14 - Fri, Aug 21
Multiple Airlines Logo
3:45 pm - 7:30 pm
ORD
-
SOU
21h 45m
2 stops
Multiple Airlines Logo
8:00 pm - 4:57 pm
SOU
-
ORD
26h 57m
2 stops
$888Multiple Airlines
Sun, Aug 16 - Sun, Aug 23
Aer Lingus Logo
9:00 pm - 7:30 pm
ORD
-
SOU
16h 30m
1 stop
Aer Lingus Logo
9:20 am - 7:15 pm
SOU
-
ORD
15h 55m
1 stop
$889Aer Lingus
Sun, Aug 16 - Sun, Aug 23

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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
Aug 17
ORD4:50 pmChicago O'Hare Intl
18h 45m
1 stop
SOU5:35 pmSouthampton Eastleigh
Aug 31
SOU5:20 pmSouthampton Eastleigh
26h 55m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,061
KLM
Aug 17
ORD11:22 amChicago O'Hare Intl
15h 23m
2 stops
SOU8:45 amSouthampton Eastleigh
Aug 24
SOU6:05 pmSouthampton Eastleigh
26h 10m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,065
KLM
Aug 14
ORD12:29 pmChicago O'Hare Intl
14h 16m
2 stops
SOU8:45 amSouthampton Eastleigh
Aug 21
SOU9:15 amSouthampton Eastleigh
11h 00m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,111

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
Jul 13
ORD9:15 pmChicago O'Hare Intl
14h 30m
2 stops
SOU5:45 pmSouthampton Eastleigh
Jul 28
SOU9:15 amSouthampton Eastleigh
16h 00m
1 stop
ORD7:15 pmChicago O'Hare Intl
$5,245
British Airways
Jul 16
ORD9:00 pmChicago O'Hare Intl
16h 30m
1 stop
SOU7:30 pmSouthampton Eastleigh
Aug 6
SOU6:45 amSouthampton Eastleigh
17h 30m
2 stops
ORD6:15 pmChicago O'Hare Intl
$5,263
British Airways
Jul 13
ORD10:30 pmChicago O'Hare Intl
13h 15m
2 stops
SOU5:45 pmSouthampton Eastleigh
Jul 28
SOU7:55 pmSouthampton Eastleigh
23h 55m
2 stops
ORD1:50 pmChicago O'Hare Intl
$5,710

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 July 3, 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

Cheapest round-trip

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 8/17

7:25 pm-7:30 pm

2 stops18h 05m

Southampton Eastleigh

Mon 8/24

9:20 am-9:25 pm

2 stops18h 05m

$708

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 8/11

2:15 pm-7:30 pm

2 stops23h 15m

Southampton Eastleigh

Tue 8/18

8:00 pm-8:29 pm

2 stops30h 29m

$757

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 8/17

7:25 pm-4:50 pm

2 stops15h 25m

Southampton Eastleigh

Mon 8/24

6:05 pm-6:15 pm

3 stops30h 10m

$785

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 8/14

3:45 pm-7:30 pm

2 stops21h 45m

Southampton Eastleigh

Fri 8/21

8:00 pm-4:57 pm

2 stops26h 57m

$791

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 8/17

7:25 pm-8:45 am

3 stops31h 20m

Southampton Eastleigh

Mon 8/24

6:05 pm-6:15 pm

3 stops30h 10m

$839
Quickest round-trip

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 8/17

9:00 pm-4:50 pm

1 stop13h 50m

Southampton Eastleigh

Mon 8/24

9:20 am-7:15 pm

1 stop15h 55m

$871

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 8/11

7:25 pm-4:50 pm

2 stops15h 25m

Southampton Eastleigh

Tue 8/18

9:15 am-6:15 pm

2 stops15h 00m

$880

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 8/14

3:45 pm-4:50 pm

2 stops19h 05m

Southampton Eastleigh

Fri 8/21

6:05 pm-4:57 pm

3 stops28h 52m

$883

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 8/16

3:45 pm-7:30 pm

2 stops21h 45m

Southampton Eastleigh

Sun 8/23

8:00 pm-4:57 pm

2 stops26h 57m

$888

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 8/16

9:00 pm-7:30 pm

1 stop16h 30m

Southampton Eastleigh

Sun 8/23

9:20 am-7:15 pm

1 stop15h 55m

$889

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 is the cheapest airline that flies from Chicago O'Hare Intl to Southampton Eastleigh?

Aer Lingus, Virgin Atlantic, and KLM are the most popular carriers operating from Chicago O'Hare Intl to Southampton Eastleigh

What airlines fly to Southampton?

British Airways, American Airlines 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 45% of people opting to fly with this airline when traveling to Southampton. Keep in mind that there are 15 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 20m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Southampton takes 10h 20m
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

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Southampton

  • 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 20m, 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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