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Cheap flights from Chicago O'Hare Intl Airport to London from $613

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 1/11. 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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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
6:15 pm - 8:50 amORD-SOU
32h 35m2 stops
Delta Logo
9:25 am - 11:56 pmSOU-ORD
20h 31m2 stops
$772Delta
Find Deal
Sun, Jan 11 - Tue, Jan 27
Delta Logo
4:20 pm - 8:50 amORD-SOU
10h 30m1 stop
Delta Logo
5:35 pm - 2:20 pmSOU-ORD
26h 45m1 stop
$782Delta
Find Deal
Tue, Apr 7 - Wed, Apr 15
Delta Logo
10:10 am - 5:00 pmORD-SOU
24h 50m2 stops
Delta Logo
5:35 pm - 2:20 pmSOU-ORD
26h 45m1 stop
$786Delta
Find Deal
Tue, Apr 7 - Wed, Apr 15
KLM Logo
10:24 am - 8:25 amORD-SOU
16h 01m2 stops
KLM Logo
5:35 pm - 2:20 pmSOU-ORD
26h 45m1 stop
$822KLM
Find Deal
Thu, Jan 8 - Thu, Jan 15
KLM Logo
10:24 am - 8:25 amORD-SOU
16h 01m2 stops
KLM Logo
9:00 am - 9:04 pmSOU-ORD
18h 04m2 stops
$832KLM
Find Deal
Thu, Jan 8 - Thu, Jan 15
Delta Logo
4:20 pm - 8:45 amORD-SOU
10h 25m1 stop
Delta Logo
9:20 am - 2:20 pmSOU-ORD
11h 00m1 stop
$841Delta
Find Deal
Thu, Apr 9 - Wed, Apr 15
Delta Logo
4:20 pm - 8:45 amORD-SOU
10h 25m1 stop
Delta Logo
9:20 am - 7:43 pmSOU-ORD
16h 23m2 stops
$850Delta
Find Deal
Thu, Apr 9 - Wed, Apr 15
Delta Logo
4:20 pm - 8:50 amORD-SOU
10h 30m1 stop
Delta Logo
9:20 am - 2:20 pmSOU-ORD
11h 00m1 stop
$861Delta
Find Deal
Sun, May 10 - Thu, May 21
Delta Logo
9:30 am - 8:50 amORD-SOU
17h 20m2 stops
Delta Logo
9:20 am - 2:20 pmSOU-ORD
11h 00m1 stop
$865Delta
Find Deal
Sun, May 10 - Thu, May 21
Delta Logo
12:15 pm - 8:50 amORD-SOU
14h 35m2 stops
Delta Logo
9:20 am - 9:52 pmSOU-ORD
18h 32m2 stops
$875Delta
Find Deal
Sun, May 10 - Thu, May 21

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 8
ORD10:24 amChicago O'Hare Intl
16h 01m
2 stops
SOU8:25 amSouthampton Eastleigh
Jan 15
SOU5:35 pmSouthampton Eastleigh
26h 45m
1 stop
ORD2:20 pmChicago O'Hare Intl
$822
Find similar
KLM
Jan 8
ORD10:24 amChicago O'Hare Intl
16h 01m
2 stops
SOU8:25 amSouthampton Eastleigh
Jan 15
SOU9:00 amSouthampton Eastleigh
18h 04m
2 stops
ORD9:04 pmChicago O'Hare Intl
$832
Find similar
KLM
Jan 1
ORD9:41 amChicago O'Hare Intl
16h 24m
2 stops
SOU8:05 amSouthampton Eastleigh
Jan 8
SOU5:35 pmSouthampton Eastleigh
26h 45m
1 stop
ORD2:20 pmChicago O'Hare Intl
$987
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
Mar 22
ORD5:25 pmChicago O'Hare Intl
9h 55m
1 stop
SOU8:20 amSouthampton Eastleigh
Mar 30
SOU5:35 pmSouthampton Eastleigh
26h 45m
1 stop
ORD2:20 pmChicago O'Hare Intl
$767
Find similar
Delta
Jan 11
ORD6:15 pmChicago O'Hare Intl
32h 35m
2 stops
SOU8:50 amSouthampton Eastleigh
Jan 27
SOU9:25 amSouthampton Eastleigh
20h 31m
2 stops
ORD11:56 pmChicago O'Hare Intl
$772
Find similar
Delta
Mar 22
ORD7:30 amChicago O'Hare Intl
19h 50m
2 stops
SOU8:20 amSouthampton Eastleigh
Mar 30
SOU5:35 pmSouthampton Eastleigh
27h 21m
2 stops
ORD2:56 pmChicago O'Hare Intl
$782
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 November 19, 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 1/11

6:15 pm-8:50 am

2 stops32h 35m

Southampton Eastleigh

Tue 1/27

9:25 am-11:56 pm

2 stops20h 31m

$772

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 4/7

4:20 pm-8:50 am

1 stop10h 30m

Southampton Eastleigh

Wed 4/15

5:35 pm-2:20 pm

1 stop26h 45m

$782

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 4/7

10:10 am-5:00 pm

2 stops24h 50m

Southampton Eastleigh

Wed 4/15

5:35 pm-2:20 pm

1 stop26h 45m

$786

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 1/8

10:24 am-8:25 am

2 stops16h 01m

Southampton Eastleigh

Thu 1/15

5:35 pm-2:20 pm

1 stop26h 45m

$822

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 1/8

10:24 am-8:25 am

2 stops16h 01m

Southampton Eastleigh

Thu 1/15

9:00 am-9:04 pm

2 stops18h 04m

$832

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 4/9

4:20 pm-8:45 am

1 stop10h 25m

Southampton Eastleigh

Wed 4/15

9:20 am-2:20 pm

1 stop11h 00m

$841

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 4/9

4:20 pm-8:45 am

1 stop10h 25m

Southampton Eastleigh

Wed 4/15

9:20 am-7:43 pm

2 stops16h 23m

$850

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 5/10

4:20 pm-8:50 am

1 stop10h 30m

Southampton Eastleigh

Thu 5/21

9:20 am-2:20 pm

1 stop11h 00m

$861

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 5/10

9:30 am-8:50 am

2 stops17h 20m

Southampton Eastleigh

Thu 5/21

9:20 am-2:20 pm

1 stop11h 00m

$865

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 5/10

12:15 pm-8:50 am

2 stops14h 35m

Southampton Eastleigh

Thu 5/21

9:20 am-9:52 pm

2 stops18h 32m

$875

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 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

Direct flights

None
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 9h 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
1,376 reviews
Search Aer Lingus flights
KLMPriceFrom $903Free CancellationRating
7.7
1,412 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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