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Cheap flights from Illinois to London from £290

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to London departing on 26/8. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:45 - 12:50ORD  Chicago O'Hare Intl-SOU Southampton Eastleigh
15h 05m2 stops Dublin Glasgow Intl
Multiple Airlines Logo
09:20 - 19:15SOU  Southampton Eastleigh-ORD Chicago O'Hare Intl
15h 55m1 stop Dublin
£665Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
19:25 - 19:30ORD  Chicago O'Hare Intl-SOU Southampton Eastleigh
18h 05m3 stops Reykjavik Keflavik Intl Manchester Dublin
Multiple Airlines Logo
19:20 - 14:15SOU  Southampton Eastleigh-ORD Chicago O'Hare Intl
24h 55m2 stops Barcelona-El Prat Amsterdam Schiphol
£680Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
17:35 - 19:30ORD  Chicago O'Hare Intl-SOU Southampton Eastleigh
19h 55m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
19:20 - 14:15SOU  Southampton Eastleigh-ORD Chicago O'Hare Intl
24h 55m2 stops Barcelona-El Prat Amsterdam Schiphol
£684Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
19:25 - 10:15ORD  Chicago O'Hare Intl-SOU Southampton Eastleigh
32h 50m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
09:20 - 19:15SOU  Southampton Eastleigh-ORD Chicago O'Hare Intl
15h 55m1 stop Dublin
£691Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
19:25 - 10:15ORD  Chicago O'Hare Intl-SOU Southampton Eastleigh
32h 50m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
09:20 - 19:15SOU  Southampton Eastleigh-ORD Chicago O'Hare Intl
15h 55m1 stop Dublin
£692Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
19:25 - 10:15ORD  Chicago O'Hare Intl-SOU Southampton Eastleigh
32h 50m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
09:20 - 19:15SOU  Southampton Eastleigh-ORD Chicago O'Hare Intl
15h 55m1 stop Dublin
£694Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
09:55 - 12:50ORD  Chicago O'Hare Intl-SOU Southampton Eastleigh
20h 55m2 stops Toronto Pearson Intl Glasgow Intl
Multiple Airlines Logo
19:20 - 14:15SOU  Southampton Eastleigh-ORD Chicago O'Hare Intl
24h 55m2 stops Barcelona-El Prat Amsterdam Schiphol
£705Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
09:55 - 12:50ORD  Chicago O'Hare Intl-SOU Southampton Eastleigh
20h 55m2 stops Toronto Pearson Intl Glasgow Intl
Multiple Airlines Logo
19:20 - 14:15SOU  Southampton Eastleigh-ORD Chicago O'Hare Intl
24h 55m2 stops Barcelona-El Prat Amsterdam Schiphol
£707Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Multiple Airlines Logo
15:40 - 19:30ORD  Chicago O'Hare Intl-SOU Southampton Eastleigh
21h 50m2 stops Montreal Pierre Elliott Trudeau Intl Dublin
Multiple Airlines Logo
20:00 - 19:55SOU  Southampton Eastleigh-ORD Chicago O'Hare Intl
29h 55m2 stops Dublin Frankfurt am Main
£722Multiple Airlines
Mon, 28 Sep - Mon, 5 Oct
Aer Lingus Logo
15:45 - 19:30ORD  Chicago O'Hare Intl-SOU Southampton Eastleigh
21h 45m1 stop Dublin
Aer Lingus Logo
09:20 - 19:15SOU  Southampton Eastleigh-ORD Chicago O'Hare Intl
15h 55m1 stop Dublin
£733Aer Lingus
Mon, 28 Sep - Mon, 5 Oct

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Aer Lingus flights from Illinois to Southampton

Our best Aer Lingus deals on Illinois to Southampton flight tickets
Aer Lingus
28 Sept
ORD15:45Chicago O'Hare Intl
21h 45m
1 stop
SOU19:30Southampton Eastleigh
5 Oct
SOU09:20Southampton Eastleigh
15h 55m
1 stop
ORD19:15Chicago O'Hare Intl
£733
Aer Lingus
28 Sept
ORD21:00Chicago O'Hare Intl
16h 30m
1 stop
SOU19:30Southampton Eastleigh
5 Oct
SOU09:20Southampton Eastleigh
15h 55m
1 stop
ORD19:15Chicago O'Hare Intl
£768
Aer Lingus
18 Aug
ORD15:45Chicago O'Hare Intl
10h 20m
1 stop
SOU08:05Southampton Eastleigh
2 Sept
SOU09:20Southampton Eastleigh
15h 55m
1 stop
ORD19:15Chicago O'Hare Intl
£1,016

Virgin Atlantic flights from Illinois to Southampton

Our best Virgin Atlantic deals on Illinois to Southampton flight tickets
Virgin Atlantic
28 Sept
ORD16:50Chicago O'Hare Intl
18h 00m
1 stop
SOU16:50Southampton Eastleigh
5 Oct
SOU17:20Southampton Eastleigh
26h 55m
1 stop
ORD14:15Chicago O'Hare Intl
£745
Virgin Atlantic
28 Sept
ORD16:50Chicago O'Hare Intl
18h 00m
1 stop
SOU16:50Southampton Eastleigh
5 Oct
SOU17:20Southampton Eastleigh
26h 55m
1 stop
ORD14:15Chicago O'Hare Intl
£769
Virgin Atlantic
28 Sept
ORD16:50Chicago O'Hare Intl
18h 00m
1 stop
SOU16:50Southampton Eastleigh
5 Oct
SOU17:20Southampton Eastleigh
26h 55m
1 stop
ORD14:15Chicago O'Hare Intl
£779

momondo Fare Finder

 
Customise your flight search to find flights from Illinois 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 279,928 searches. Data last updated 16 August 2026.
Use the filters below to find and compare flights from Illinois to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ChicagoSouthampton

ORD Chicago O'Hare Intl - SOU Southampton Eastleigh

ORDSOU

Chicago O'Hare Intl

Mon 28/9

15:45-12:50

2 stops15h 05m

Southampton Eastleigh

Mon 5/10

09:20-19:15

1 stop15h 55m

£665

ChicagoSouthampton

ORD Chicago O'Hare Intl - SOU Southampton Eastleigh

ORDSOU

Chicago O'Hare Intl

Mon 28/9

19:25-19:30

3 stops18h 05m

Southampton Eastleigh

Mon 5/10

19:20-14:15

2 stops24h 55m

£680

ChicagoSouthampton

ORD Chicago O'Hare Intl - SOU Southampton Eastleigh

ORDSOU

Chicago O'Hare Intl

Mon 28/9

17:35-19:30

2 stops19h 55m

Southampton Eastleigh

Mon 5/10

19:20-14:15

2 stops24h 55m

£684

ChicagoSouthampton

ORD Chicago O'Hare Intl - SOU Southampton Eastleigh

ORDSOU

Chicago O'Hare Intl

Mon 28/9

19:25-10:15

2 stops32h 50m

Southampton Eastleigh

Mon 5/10

09:20-19:15

1 stop15h 55m

£691

ChicagoSouthampton

ORD Chicago O'Hare Intl - SOU Southampton Eastleigh

ORDSOU

Chicago O'Hare Intl

Mon 28/9

19:25-10:15

2 stops32h 50m

Southampton Eastleigh

Mon 5/10

09:20-19:15

1 stop15h 55m

£692

ChicagoSouthampton

ORD Chicago O'Hare Intl - SOU Southampton Eastleigh

ORDSOU

Chicago O'Hare Intl

Mon 28/9

19:25-10:15

2 stops32h 50m

Southampton Eastleigh

Mon 5/10

09:20-19:15

1 stop15h 55m

£694

ChicagoSouthampton

ORD Chicago O'Hare Intl - SOU Southampton Eastleigh

ORDSOU

Chicago O'Hare Intl

Mon 28/9

09:55-12:50

2 stops20h 55m

Southampton Eastleigh

Mon 5/10

19:20-14:15

2 stops24h 55m

£705

ChicagoSouthampton

ORD Chicago O'Hare Intl - SOU Southampton Eastleigh

ORDSOU

Chicago O'Hare Intl

Mon 28/9

09:55-12:50

2 stops20h 55m

Southampton Eastleigh

Mon 5/10

19:20-14:15

2 stops24h 55m

£707

ChicagoSouthampton

ORD Chicago O'Hare Intl - SOU Southampton Eastleigh

ORDSOU

Chicago O'Hare Intl

Mon 28/9

15:40-19:30

2 stops21h 50m

Southampton Eastleigh

Mon 5/10

20:00-19:55

2 stops29h 55m

£722

ChicagoSouthampton

ORD Chicago O'Hare Intl - SOU Southampton Eastleigh

ORDSOU

Chicago O'Hare Intl

Mon 28/9

15:45-19:30

1 stop21h 45m

Southampton Eastleigh

Mon 5/10

09:20-19:15

1 stop15h 55m

£733

Flights are sorted by cheapest return 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 Illinois 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 month to fly to Southampton?

The month of December is, on average, the cheapest month to fly to Southampton from Illinois, with most prices found around £0. If you’re not able to fly to Southampton in December, then November is your next best option. Flight prices from Illinois to Southampton during November average around £0.

Cheap Illinois to Southampton flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Southampton

Fastest flight time

10h 20m

Direct flights

None
The fastest flight from Illinois to Southampton takes 10h 20m
There are no direct flights from Illinois to Southampton. There are no popular flight routes from Illinois to Southampton.
Search flight deals

Frequently asked questions about flying from Illinois to Southampton

  • When did momondo last update prices for flights from Illinois to Southampton Eastleigh Airport?

    Prices for flights from Illinois to Southampton Eastleigh Airport are updated daily.

  • How old do you have to be to fly from Illinois 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 Illinois 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.

Travelling 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 Illinois to Southampton?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Southampton. momondo saves you time and could save you money on your trip.

Can I find flights from Illinois to Southampton with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Southampton flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Southampton?

Once you have performed a search for Illinois to Southampton flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Illinois to Southampton right now. Can momondo alert me if prices change?

Price alerts on flights to Southampton from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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