Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Southampton to St. Louis from £729

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Southampton to St. Louis

Cheap return flights

Enter your travel dates to find the best prices.
KLM Logo
17:35 - 16:31SOU  Southampton Eastleigh-STL Lambert-St Louis
28h 56m2 stops Amsterdam Schiphol Minneapolis St Paul
KLM Logo
07:03 - 08:10STL  Lambert-St Louis-SOU Southampton Eastleigh
19h 07m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol
£729KLM
Tue, 24 Nov - Tue, 1 Dec
Multiple Airlines Logo
20:00 - 19:27SOU  Southampton Eastleigh-STL Lambert-St Louis
29h 27m3 stops Dublin London Heathrow Chicago O'Hare Intl
Multiple Airlines Logo
07:26 - 08:50STL  Lambert-St Louis-SOU Southampton Eastleigh
19h 24m2 stops Chicago O'Hare Intl Dublin
£868Multiple Airlines
Tue, 24 Nov - Tue, 1 Dec
Multiple Airlines Logo
08:50 - 13:45SOU  Southampton Eastleigh-STL Lambert-St Louis
34h 55m3 stops Belfast City London City Frankfurt am Main
Multiple Airlines Logo
16:05 - 19:30STL  Lambert-St Louis-SOU Southampton Eastleigh
21h 25m3 stops Toronto Pearson Intl London Heathrow Dublin
£1,118Multiple Airlines
Tue, 24 Nov - Tue, 1 Dec

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise 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

momondo Fare Finder

 
Use the filters below to find and compare flights from Southampton to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

SouthamptonSt. Louis

SOU Southampton Eastleigh - STL Lambert-St Louis

SOUSTL

Southampton Eastleigh

Tue 24/11

17:35-16:31

2 stops28h 56m

Lambert-St Louis

Tue 1/12

07:03-08:10

2 stops19h 07m

£729

SouthamptonSt. Louis

SOU Southampton Eastleigh - STL Lambert-St Louis

SOUSTL

Southampton Eastleigh

Tue 24/11

20:00-19:27

3 stops29h 27m

Lambert-St Louis

Tue 1/12

07:26-08:50

2 stops19h 24m

£868

SouthamptonSt. Louis

SOU Southampton Eastleigh - STL Lambert-St Louis

SOUSTL

Southampton Eastleigh

Tue 24/11

08:50-13:45

3 stops34h 55m

Lambert-St Louis

Tue 1/12

16:05-19:30

3 stops21h 25m

£1,118
Cheapest one-way
Fastest single journey

SouthamptonSt. Louis

SOU Southampton Eastleigh - STL Lambert-St Louis

SOUSTL

Southampton Eastleigh

Sun 3/1

17:30-20:51

2 stops33h 21m

£1,389

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to St. Louis from

How to get the cheapest flight ticket from Southampton to St. Louis

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 St. Louis?

Our data shows that Saturday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as £603. Flights from Southampton to St. Louis on a Sunday will generally be more expensive and average around £1,074. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

When to book flights from Southampton to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Southampton to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Southampton to St. Louis (SOU to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Southampton to St. Louis

Best price found

£1,389

Direct flights

None
The best one-way flight to St. Louis from Southampton in the past 72 hours is £1,389. The best return flight deal from Southampton to St. Louis found on momondo in the last 72 hours is £729.
There are no direct flights from Southampton to St. Louis. There are no popular flight routes from Southampton to St. Louis.
Search flight deals

Frequently asked questions about flying from Southampton to St. Louis

  • How far is Southampton Eastleigh to Lambert-St Louis by plane?

    The distance between Southampton Eastleigh and Lambert-St Louis is about 4166.1 mi.

  • When did momondo last update prices for flights from Southampton Eastleigh Airport to Lambert-St Louis Airport?

    Prices for flights from Southampton Eastleigh Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Southampton Eastleigh Airport to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Southampton Eastleigh Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis 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 Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Litchfield
Collinsville
Alton
Farmington

Why use momondo?

Why should I use momondo to find a flight deal from Southampton to St. Louis?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Southampton to St. Louis for you.

Can I find flights from Southampton to St. Louis with flexible booking policies on momondo?

All flight searches from Southampton to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Southampton to St. Louis?

momondo helps you find the best flight between Southampton and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Southampton to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

An easier way to manage your St. Louis trip

We make it super easy to schedule, organise 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 13/11
Fri 20/11
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States