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Cheap flights from Chicago O'Hare Intl Airport to London from $347

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 9/29. 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

Delta Logo
4:25 pm - 5:25 pmORD-SOU
19h 00m1 stop
Delta Logo
8:40 am - 2:20 pmSOU-ORD
11h 40m1 stop
$736Delta
Find Deal
Sun, Nov 16 - Wed, Nov 26
Delta Logo
6:15 pm - 5:00 pmORD-SOU
16h 45m2 stops
Delta Logo
8:40 am - 2:20 pmSOU-ORD
11h 40m1 stop
$740Delta
Find Deal
Tue, Dec 2 - Wed, Dec 10
Delta Logo
11:15 am - 5:00 pmORD-SOU
23h 45m2 stops
Delta Logo
5:30 pm - 5:46 pmSOU-ORD
30h 16m2 stops
$750Delta
Find Deal
Tue, Dec 2 - Wed, Dec 10
KLM Logo
1:25 pm - 8:50 amORD-SOU
14h 25m2 stops
KLM Logo
8:40 am - 2:20 pmSOU-ORD
11h 40m1 stop
$791KLM
Find Deal
Fri, Oct 31 - Fri, Nov 7
Virgin Atlantic Logo
2:10 pm - 5:25 pmORD-SOU
21h 15m2 stops
Virgin Atlantic Logo
9:30 am - 11:54 pmSOU-ORD
44h 24m2 stops
$809Virgin Atlantic
Find Deal
Wed, Feb 25 - Sun, Mar 1
KLM Logo
12:15 pm - 8:20 amORD-SOU
14h 05m2 stops
KLM Logo
9:30 am - 8:38 pmSOU-ORD
17h 08m2 stops
$900KLM
Find Deal
Wed, Feb 25 - Sun, Mar 1
Virgin Atlantic Logo
1:30 pm - 5:25 pmORD-SOU
21h 55m2 stops
Virgin Atlantic Logo
9:30 am - 8:38 pmSOU-ORD
17h 08m2 stops
$904Virgin Atlantic
Find Deal
Wed, Feb 25 - Sun, Mar 1
Multiple Airlines Logo
8:40 am - 7:30 pmORD-SOU
28h 50m3 stops
Multiple Airlines Logo
9:40 am - 12:39 pmSOU-ORD
32h 59m3 stops
$929Multiple Airlines
Find Deal
Tue, Sep 30 - Fri, Oct 3
Multiple Airlines Logo
3:45 pm - 8:15 amORD-SOU
10h 30m1 stop
Multiple Airlines Logo
8:00 pm - 4:30 pmSOU-ORD
26h 30m2 stops
$978Multiple Airlines
Find Deal
Mon, Sep 29 - Thu, Oct 2
Aer Lingus Logo
3:50 pm - 8:45 amORD-SOU
10h 55m1 stop
Aer Lingus Logo
9:30 am - 5:55 pmSOU-ORD
14h 25m1 stop
$1,010Aer Lingus
Find Deal
Thu, Dec 11 - Fri, Dec 19

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
Dec 11
ORD3:50 pmChicago O'Hare Intl
10h 55m
1 stop
SOU8:45 amSouthampton Eastleigh
Dec 19
SOU9:30 amSouthampton Eastleigh
14h 25m
1 stop
ORD5:55 pmChicago O'Hare Intl
$1,010
Find similar
Aer Lingus
Sep 30
ORD3:45 pmChicago O'Hare Intl
10h 20m
1 stop
SOU8:05 amSouthampton Eastleigh
Oct 3
SOU9:40 amSouthampton Eastleigh
12h 05m
1 stop
ORD3:45 pmChicago O'Hare Intl
$1,267
Find similar
Aer Lingus
Sep 29
ORD3:45 pmChicago O'Hare Intl
10h 30m
1 stop
SOU8:15 amSouthampton Eastleigh
Oct 2
SOU9:40 amSouthampton Eastleigh
12h 05m
1 stop
ORD3:45 pmChicago O'Hare Intl
$1,269
Find similar

Virgin Atlantic flights from Chicago O'Hare Intl Airport to Southampton

Our best Virgin Atlantic deals on Chicago O'Hare Intl Airport to Southampton flight tickets
Virgin Atlantic
Feb 25
ORD2:10 pmChicago O'Hare Intl
21h 15m
2 stops
SOU5:25 pmSouthampton Eastleigh
Mar 1
SOU9:30 amSouthampton Eastleigh
44h 24m
2 stops
ORD11:54 pmChicago O'Hare Intl
$809
Find similar
Virgin Atlantic
Feb 25
ORD1:30 pmChicago O'Hare Intl
21h 55m
2 stops
SOU5:25 pmSouthampton Eastleigh
Mar 1
SOU9:30 amSouthampton Eastleigh
17h 08m
2 stops
ORD8:38 pmChicago O'Hare Intl
$904
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 September 17, 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 11/16

4:25 pm-5:25 pm

1 stop19h 00m

Southampton Eastleigh

Wed 11/26

8:40 am-2:20 pm

1 stop11h 40m

$736

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 12/2

6:15 pm-5:00 pm

2 stops16h 45m

Southampton Eastleigh

Wed 12/10

8:40 am-2:20 pm

1 stop11h 40m

$740

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 12/2

11:15 am-5:00 pm

2 stops23h 45m

Southampton Eastleigh

Wed 12/10

5:30 pm-5:46 pm

2 stops30h 16m

$750

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Fri 10/31

1:25 pm-8:50 am

2 stops14h 25m

Southampton Eastleigh

Fri 11/7

8:40 am-2:20 pm

1 stop11h 40m

$791

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 2/25

2:10 pm-5:25 pm

2 stops21h 15m

Southampton Eastleigh

Sun 3/1

9:30 am-11:54 pm

2 stops44h 24m

$809

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 2/25

12:15 pm-8:20 am

2 stops14h 05m

Southampton Eastleigh

Sun 3/1

9:30 am-8:38 pm

2 stops17h 08m

$900

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Wed 2/25

1:30 pm-5:25 pm

2 stops21h 55m

Southampton Eastleigh

Sun 3/1

9:30 am-8:38 pm

2 stops17h 08m

$904

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 9/30

8:40 am-7:30 pm

3 stops28h 50m

Southampton Eastleigh

Fri 10/3

9:40 am-12:39 pm

3 stops32h 59m

$929

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 9/29

3:45 pm-8:15 am

1 stop10h 30m

Southampton Eastleigh

Thu 10/2

8:00 pm-4:30 pm

2 stops26h 30m

$978

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 12/11

3:50 pm-8:45 am

1 stop10h 55m

Southampton Eastleigh

Fri 12/19

9:30 am-5:55 pm

1 stop14h 25m

$1,010

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 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.
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  • 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 $653Free CancellationRating
7.2
1,277 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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