Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago O'Hare Intl Airport to London from $320

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 5/10. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 pmORD-SOU
12h 35m1 stop
Aer Lingus Logo
9:30 am - 7:15 pmSOU-ORD
15h 45m1 stop
$697Aer Lingus
Find Deal
Sat, Jan 10 - Sat, Jan 17
Delta Logo
4:20 pm - 8:35 amORD-SOU
10h 15m1 stop
Delta Logo
9:05 am - 2:15 pmSOU-ORD
11h 10m1 stop
$755Delta
Find Deal
Sun, Mar 29 - Tue, Apr 7
Delta Logo
7:00 am - 8:10 amORD-SOU
20h 10m2 stops
Delta Logo
5:20 pm - 2:15 pmSOU-ORD
26h 55m1 stop
$759Delta
Find Deal
Tue, Mar 24 - Wed, Apr 8
Aer Lingus Logo
9:00 pm - 3:35 pmORD-SOU
12h 35m1 stop
Aer Lingus Logo
9:30 am - 7:15 pmSOU-ORD
15h 45m1 stop
$761Aer Lingus
Find Deal
Thu, Jan 8 - Thu, Jan 15
Delta Logo
4:20 pm - 8:35 amORD-SOU
10h 15m1 stop
Delta Logo
9:15 am - 2:15 pmSOU-ORD
11h 00m1 stop
$805Delta
Find Deal
Sun, Mar 29 - Sun, Apr 12
Multiple Airlines Logo
6:30 pm - 5:30 pmORD-SOU
17h 00m2 stops
Multiple Airlines Logo
8:10 pm - 3:25 pmSOU-ORD
25h 15m2 stops
$816Multiple Airlines
Find Deal
Thu, Jan 8 - Thu, Jan 15
KLM Logo
11:05 am - 8:25 amORD-SOU
15h 20m2 stops
KLM Logo
5:35 pm - 2:20 pmSOU-ORD
26h 45m1 stop
$820KLM
Find Deal
Thu, Jan 8 - Thu, Jan 15
Delta Logo
6:02 pm - 8:10 amORD-SOU
32h 08m2 stops
Delta Logo
5:35 pm - 5:45 pmSOU-ORD
30h 10m2 stops
$829Delta
Find Deal
Mon, Dec 22 - Thu, Jan 8
Delta Logo
4:20 pm - 4:50 pmORD-SOU
18h 30m1 stop
Delta Logo
9:15 am - 2:15 pmSOU-ORD
11h 00m1 stop
$830Delta
Find Deal
Sun, Apr 19 - Sun, Apr 26
Delta Logo
9:55 am - 8:50 amORD-SOU
16h 55m2 stops
Delta Logo
5:45 pm - 4:38 pmSOU-ORD
28h 53m2 stops
$831Delta
Find Deal
Sun, Jan 25 - Sun, Feb 1

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 23
ORD4:25 pmChicago O'Hare Intl
18h 35m
1 stop
SOU5:00 pmSouthampton Eastleigh
Feb 27
SOU8:40 amSouthampton Eastleigh
11h 40m
1 stop
ORD2:20 pmChicago O'Hare Intl
$965
Find similar
Virgin Atlantic
Feb 23
ORD10:36 amChicago O'Hare Intl
24h 24m
2 stops
SOU5:00 pmSouthampton Eastleigh
Feb 27
SOU8:40 amSouthampton Eastleigh
11h 40m
1 stop
ORD2:20 pmChicago O'Hare Intl
$969
Find similar
Virgin Atlantic
Feb 23
ORD10:36 amChicago O'Hare Intl
15h 34m
2 stops
SOU8:10 amSouthampton Eastleigh
Feb 27
SOU8:40 amSouthampton Eastleigh
18h 17m
2 stops
ORD8:57 pmChicago O'Hare Intl
$979
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 29
ORD4:20 pmChicago O'Hare Intl
10h 15m
1 stop
SOU8:35 amSouthampton Eastleigh
Apr 8
SOU9:05 amSouthampton Eastleigh
11h 10m
1 stop
ORD2:15 pmChicago O'Hare Intl
$755
Find similar
Delta
Mar 24
ORD7:00 amChicago O'Hare Intl
20h 10m
2 stops
SOU8:10 amSouthampton Eastleigh
Apr 9
SOU9:05 amSouthampton Eastleigh
11h 10m
1 stop
ORD2:15 pmChicago O'Hare Intl
$759
Find similar
Delta
Mar 29
ORD4:20 pmChicago O'Hare Intl
10h 15m
1 stop
SOU8:35 amSouthampton Eastleigh
Apr 11
SOU9:15 amSouthampton Eastleigh
11h 00m
1 stop
ORD2:15 pmChicago O'Hare Intl
$805
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 26, 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

Sat 1/10

9:00 pm-3:35 pm

1 stop12h 35m

Southampton Eastleigh

Sat 1/17

9:30 am-7:15 pm

1 stop15h 45m

$697

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 3/29

4:20 pm-8:35 am

1 stop10h 15m

Southampton Eastleigh

Tue 4/7

9:05 am-2:15 pm

1 stop11h 10m

$755

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Tue 3/24

7:00 am-8:10 am

2 stops20h 10m

Southampton Eastleigh

Wed 4/8

5:20 pm-2:15 pm

1 stop26h 55m

$759

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 1/8

9:00 pm-3:35 pm

1 stop12h 35m

Southampton Eastleigh

Thu 1/15

9:30 am-7:15 pm

1 stop15h 45m

$761

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 3/29

4:20 pm-8:35 am

1 stop10h 15m

Southampton Eastleigh

Sun 4/12

9:15 am-2:15 pm

1 stop11h 00m

$805

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 1/8

6:30 pm-5:30 pm

2 stops17h 00m

Southampton Eastleigh

Thu 1/15

8:10 pm-3:25 pm

2 stops25h 15m

$816

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Thu 1/8

11:05 am-8:25 am

2 stops15h 20m

Southampton Eastleigh

Thu 1/15

5:35 pm-2:20 pm

1 stop26h 45m

$820

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Mon 12/22

6:02 pm-8:10 am

2 stops32h 08m

Southampton Eastleigh

Thu 1/8

5:35 pm-5:45 pm

2 stops30h 10m

$829

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 4/19

4:20 pm-4:50 pm

1 stop18h 30m

Southampton Eastleigh

Sun 4/26

9:15 am-2:15 pm

1 stop11h 00m

$830

ChicagoSouthampton

ORD - SOU

ORDSOU

Chicago O'Hare Intl

Sun 1/25

9:55 am-8:50 am

2 stops16h 55m

Southampton Eastleigh

Sun 2/1

5:45 pm-4:38 pm

2 stops28h 53m

$831

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 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 15m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Southampton takes 10h 15m
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 15m, 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
1,381 reviews
Search Aer Lingus flights

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.

An easier way to manage your Southampton trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 12/26
Fri 1/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom