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Cheap flights from Chicago O'Hare Intl Airport to London from $597

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 12/30. 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
11:17 am - 8:50 am
ORD
-
SOU
15h 33m2 stops
KLM Logo
5:45 pm - 2:20 pm
SOU
-
ORD
26h 35m1 stop
$821KLM
Sun, Jan 25 - Sun, Feb 1
KLM Logo
11:17 am - 8:50 am
ORD
-
SOU
15h 33m2 stops
KLM Logo
5:45 pm - 4:55 pm
SOU
-
ORD
29h 10m2 stops
$831KLM
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
6:30 pm - 5:30 pm
ORD
-
SOU
17h 00m2 stops
Multiple Airlines Logo
3:25 pm - 7:55 pm
SOU
-
ORD
34h 30m3 stops
$860Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
7:15 am - 5:30 pm
ORD
-
SOU
28h 15m3 stops
Multiple Airlines Logo
3:25 pm - 7:55 pm
SOU
-
ORD
34h 30m3 stops
$932Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
9:00 pm - 3:35 pm
ORD
-
SOU
12h 35m1 stop
Multiple Airlines Logo
9:30 am - 7:15 pm
SOU
-
ORD
15h 45m1 stop
$995Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Aer Lingus Logo
9:00 pm - 3:35 pm
ORD
-
SOU
12h 35m1 stop
Aer Lingus Logo
8:10 pm - 7:15 pm
SOU
-
ORD
29h 05m1 stop
$1,509Aer Lingus
Thu, Jan 29 - Fri, Jan 30
Delta Logo
4:25 pm - 5:00 pm
ORD
-
SOU
18h 35m1 stop
Delta Logo
8:40 am - 2:20 pm
SOU
-
ORD
11h 40m1 stop
$1,788Delta
Mon, Dec 29 - Fri, Jan 2
Delta Logo
10:05 am - 8:10 am
ORD
-
SOU
16h 05m2 stops
Delta Logo
8:40 am - 2:20 pm
SOU
-
ORD
11h 40m1 stop
$1,792Delta
Mon, Dec 29 - Fri, Jan 2
Delta Logo
6:02 pm - 8:10 am
ORD
-
SOU
32h 08m2 stops
Delta Logo
8:40 am - 2:20 pm
SOU
-
ORD
11h 40m1 stop
$1,933Delta
Sun, Dec 28 - Fri, Jan 2
Delta Logo
10:05 am - 8:10 am
ORD
-
SOU
16h 05m2 stops
Delta Logo
8:40 am - 5:47 pm
SOU
-
ORD
15h 07m2 stops
$2,062Delta
Mon, Dec 29 - Fri, Jan 2

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
Jan 25
ORD11:17 amChicago O'Hare Intl
15h 33m
2 stops
SOU8:50 amSouthampton Eastleigh
Feb 1
SOU5:45 pmSouthampton Eastleigh
26h 35m
1 stop
ORD2:20 pmChicago O'Hare Intl
$821
Find similar
KLM
Jan 25
ORD11:17 amChicago O'Hare Intl
15h 33m
2 stops
SOU8:50 amSouthampton Eastleigh
Feb 1
SOU5:45 pmSouthampton Eastleigh
29h 10m
2 stops
ORD4:55 pmChicago O'Hare Intl
$831
Find similar
KLM
Feb 16
ORD4:25 pmChicago O'Hare Intl
10h 25m
1 stop
SOU8:50 amSouthampton Eastleigh
Feb 28
SOU5:30 pmSouthampton Eastleigh
26h 50m
1 stop
ORD2:20 pmChicago O'Hare Intl
$2,072
Find similar

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
Dec 12
ORD4:25 pmChicago O'Hare Intl
10h 25m
1 stop
SOU8:50 amSouthampton Eastleigh
Jan 20
SOU5:35 pmSouthampton Eastleigh
26h 45m
1 stop
ORD2:20 pmChicago O'Hare Intl
$871
Find similar
Delta
Dec 12
ORD4:25 pmChicago O'Hare Intl
10h 25m
1 stop
SOU8:50 amSouthampton Eastleigh
Jan 20
SOU9:25 amSouthampton Eastleigh
17h 40m
2 stops
ORD9:05 pmChicago O'Hare Intl
$881
Find similar
Delta
Dec 12
ORD4:25 pmChicago O'Hare Intl
10h 25m
1 stop
SOU8:50 amSouthampton Eastleigh
Jan 17
SOU9:25 amSouthampton Eastleigh
10h 55m
1 stop
ORD2:20 pmChicago O'Hare Intl
$921
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 11, 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

Sun 1/25

11:17 am-8:50 am

2 stops15h 33m

Southampton Eastleigh

Sun 2/1

5:45 pm-2:20 pm

1 stop26h 35m

$821

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 1/25

11:17 am-8:50 am

2 stops15h 33m

Southampton Eastleigh

Sun 2/1

5:45 pm-4:55 pm

2 stops29h 10m

$831

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 1/25

6:30 pm-5:30 pm

2 stops17h 00m

Southampton Eastleigh

Sun 2/1

3:25 pm-7:55 pm

3 stops34h 30m

$860

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 1/25

7:15 am-5:30 pm

3 stops28h 15m

Southampton Eastleigh

Sun 2/1

3:25 pm-7:55 pm

3 stops34h 30m

$932

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 1/25

9:00 pm-3:35 pm

1 stop12h 35m

Southampton Eastleigh

Sun 2/1

9:30 am-7:15 pm

1 stop15h 45m

$995

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 1/29

9:00 pm-3:35 pm

1 stop12h 35m

Southampton Eastleigh

Fri 1/30

8:10 pm-7:15 pm

1 stop29h 05m

$1,509

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 12/29

4:25 pm-5:00 pm

1 stop18h 35m

Southampton Eastleigh

Fri 1/2

8:40 am-2:20 pm

1 stop11h 40m

$1,788

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 12/29

10:05 am-8:10 am

2 stops16h 05m

Southampton Eastleigh

Fri 1/2

8:40 am-2:20 pm

1 stop11h 40m

$1,792

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 12/28

6:02 pm-8:10 am

2 stops32h 08m

Southampton Eastleigh

Fri 1/2

8:40 am-2:20 pm

1 stop11h 40m

$1,933

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 12/29

10:05 am-8:10 am

2 stops16h 05m

Southampton Eastleigh

Fri 1/2

8:40 am-5:47 pm

2 stops15h 07m

$2,062

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 day to depart on your flight to Southampton?

On average, the least expensive day to fly to Southampton from Chicago O'Hare Intl Airport is on a Sunday. momondo users have found tickets for Sunday departures for as low as $803. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to Southampton for around $1,258.

What is the cheapest time of day to depart on your flight to Southampton?

Flying to Southampton from Chicago O'Hare Intl Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $768 when looking at flights departing in the evening. Flights to Southampton are more costly in the morning, with an average ticket price of $1,075. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $623Free CancellationRating
7.2
1,392 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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