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Cheap flights from Chicago O'Hare Intl Airport to London from $278

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 2/15. 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.
Aer Lingus Logo
9:00 pm - 3:35 pm
ORD
-
SOU
12h 35m
1 stop
Aer Lingus Logo
9:30 am - 7:15 pm
SOU
-
ORD
15h 45m
1 stop
$741Aer Lingus
seg, fev 16 - dom, fev 22
KLM Logo
11:15 am - 8:50 am
ORD
-
SOU
15h 35m
2 stops
KLM Logo
5:35 pm - 2:20 pm
SOU
-
ORD
26h 45m
1 stop
$750KLM
ter, fev 10 - ter, fev 17
KLM Logo
11:15 am - 8:50 am
ORD
-
SOU
15h 35m
2 stops
KLM Logo
9:25 am - 11:56 pm
SOU
-
ORD
20h 31m
2 stops
$760KLM
ter, fev 10 - ter, fev 17
KLM Logo
10:45 am - 8:35 am
ORD
-
SOU
15h 50m
2 stops
KLM Logo
5:20 pm - 2:15 pm
SOU
-
ORD
26h 55m
1 stop
$765KLM
dom, abr 26 - seg, mai 11
Multiple Airlines Logo
9:00 pm - 7:40 pm
ORD
-
SOU
16h 40m
1 stop
Multiple Airlines Logo
9:30 am - 7:15 pm
SOU
-
ORD
15h 45m
1 stop
$774Multiple Airlines
sáb, fev 28 - sáb, mar 7
Delta Logo
4:50 pm - 4:50 pm
ORD
-
SOU
18h 00m
1 stop
Delta Logo
5:20 pm - 2:30 pm
SOU
-
ORD
27h 10m
1 stop
$809Delta
seg, mai 11 - ter, mai 26
Air Europa Logo
4:50 pm - 4:50 pm
ORD
-
SOU
18h 00m
1 stop
Air Europa Logo
5:20 pm - 2:30 pm
SOU
-
ORD
27h 10m
1 stop
$810Air Europa
seg, abr 27 - dom, mai 10
Delta Logo
7:30 am - 4:50 pm
ORD
-
SOU
27h 20m
2 stops
Delta Logo
9:05 am - 2:15 pm
SOU
-
ORD
11h 10m
1 stop
$814Delta
dom, mai 10 - ter, mai 26
Delta Logo
4:50 pm - 4:50 pm
ORD
-
SOU
18h 00m
1 stop
Delta Logo
9:05 am - 7:43 pm
SOU
-
ORD
16h 38m
2 stops
$819Delta
seg, mai 11 - sex, mai 29
Delta Logo
7:30 am - 4:50 pm
ORD
-
SOU
27h 20m
2 stops
Delta Logo
9:05 am - 7:43 pm
SOU
-
ORD
16h 38m
2 stops
$823Delta
dom, mai 10 - qui, mai 28

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 16
ORD9:00 pmChicago O'Hare Intl
12h 35m
1 stop
SOU3:35 pmSouthampton Eastleigh
Feb 22
SOU9:30 amSouthampton Eastleigh
15h 45m
1 stop
ORD7:15 pmChicago O'Hare Intl
$741
Aer Lingus
Feb 10
ORD9:00 pmChicago O'Hare Intl
12h 35m
1 stop
SOU3:35 pmSouthampton Eastleigh
Feb 17
SOU4:05 pmSouthampton Eastleigh
33h 10m
1 stop
ORD7:15 pmChicago O'Hare Intl
$863
Aer Lingus
Feb 10
ORD9:11 pmChicago O'Hare Intl
40h 29m
2 stops
SOU7:40 pmSouthampton Eastleigh
Feb 17
SOU12:25 pmSouthampton Eastleigh
12h 50m
1 stop
ORD7:15 pmChicago O'Hare Intl
$886

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 10
ORD11:15 amChicago O'Hare Intl
15h 35m
2 stops
SOU8:50 amSouthampton Eastleigh
Feb 17
SOU5:35 pmSouthampton Eastleigh
26h 45m
1 stop
ORD2:20 pmChicago O'Hare Intl
$750
KLM
Feb 10
ORD11:15 amChicago O'Hare Intl
15h 35m
2 stops
SOU8:50 amSouthampton Eastleigh
Feb 17
SOU9:25 amSouthampton Eastleigh
20h 31m
2 stops
ORD11:56 pmChicago O'Hare Intl
$760
KLM
Apr 26
ORD10:45 amChicago O'Hare Intl
15h 50m
2 stops
SOU8:35 amSouthampton Eastleigh
May 11
SOU5:20 pmSouthampton Eastleigh
26h 55m
1 stop
ORD2:15 pmChicago O'Hare Intl
$765

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 janeiro 15, 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

seg 2/16

9:00 pm-3:35 pm

1 stop12h 35m

Southampton Eastleigh

dom 2/22

9:30 am-7:15 pm

1 stop15h 45m

$741

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

ter 2/10

11:15 am-8:50 am

2 stops15h 35m

Southampton Eastleigh

ter 2/17

5:35 pm-2:20 pm

1 stop26h 45m

$750

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

ter 2/10

11:15 am-8:50 am

2 stops15h 35m

Southampton Eastleigh

ter 2/17

9:25 am-11:56 pm

2 stops20h 31m

$760

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

dom 4/26

10:45 am-8:35 am

2 stops15h 50m

Southampton Eastleigh

seg 5/11

5:20 pm-2:15 pm

1 stop26h 55m

$765

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

sáb 2/28

9:00 pm-7:40 pm

1 stop16h 40m

Southampton Eastleigh

sáb 3/7

9:30 am-7:15 pm

1 stop15h 45m

$774

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

seg 5/11

4:50 pm-4:50 pm

1 stop18h 00m

Southampton Eastleigh

ter 5/26

5:20 pm-2:30 pm

1 stop27h 10m

$809

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

seg 4/27

4:50 pm-4:50 pm

1 stop18h 00m

Southampton Eastleigh

dom 5/10

5:20 pm-2:30 pm

1 stop27h 10m

$810

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

dom 5/10

7:30 am-4:50 pm

2 stops27h 20m

Southampton Eastleigh

ter 5/26

9:05 am-2:15 pm

1 stop11h 10m

$814

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

seg 5/11

4:50 pm-4:50 pm

1 stop18h 00m

Southampton Eastleigh

sex 5/29

9:05 am-7:43 pm

2 stops16h 38m

$819

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

dom 5/10

7:30 am-4:50 pm

2 stops27h 20m

Southampton Eastleigh

qui 5/28

9:05 am-7:43 pm

2 stops16h 38m

$823

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 is the most popular carrier 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 $653Free CancellationRating
7.2
1,435 reviews
Search Aer Lingus 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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