How do I get Price Alerts for flights from St. Louis to London Stansted Airport?

You can take advantage of momondo’s Price Alerts by first searching for your flights to St. Louis from London Stansted Airport . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How can I save money on flights from St. Louis to London Stansted Airport with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from Lambert-St Louis Airport to London Stansted Airport?

Prices for flights from Lambert-St Louis Airport to London Stansted Airport are updated daily.

How old do you have to be to fly from Lambert-St Louis Airport to London Stansted Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to London Stansted Airport.

What documentation or ID do you need to fly to London Stansted Airport?

The travel and health documents you'll need for your trip to London Stansted Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Stansted Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$481 Cheap Flights from St. Louis to London Stansted Airport (STL-STN) in 2025

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0 bags

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Find the cheapest flights from St. Louis to London (STL-STN)

Round-trip

One-way

Last minute

Cheap round-trip flights

3:50 pm - 7:40 pmSTL-STN

21h 50m2 stops

2:30 pm - 1:55 pmSTN-STL

29h 25m2 stops

$734

Find Deal

Wed, Nov 12 - Tue, Nov 18

7:04 pm - 9:55 pmSTL-STN

20h 51m3 stops

4:25 pm - 1:30 pmSTN-STL

27h 05m2 stops

$1,343

Find Deal

Tue, Sep 9 - Tue, Sep 16

3:30 pm - 3:10 pmSTL-STN

17h 40m2 stops

5:55 pm - 1:30 pmSTN-STL

25h 35m2 stops

$1,569

Find Deal

Wed, Aug 27 - Sat, Aug 30

3:30 pm - 1:35 pmSTL-STN

16h 05m2 stops

8:20 am - 11:56 pmSTN-STL

21h 36m3 stops

$1,914

Find Deal

Fri, Oct 10 - Fri, Nov 7

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Wed 11/12

3:50 pm-7:40 pm

2 stops21h 50m

London Stansted

Tue 11/18

2:30 pm-1:55 pm

2 stops29h 25m

$734

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Tue 9/9

7:04 pm-9:55 pm

3 stops20h 51m

London Stansted

Tue 9/16

4:25 pm-1:30 pm

2 stops27h 05m

$1,343

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Wed 8/27

3:30 pm-3:10 pm

2 stops17h 40m

London Stansted

Sat 8/30

5:55 pm-1:30 pm

2 stops25h 35m

$1,569

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Fri 10/10

3:30 pm-1:35 pm

2 stops16h 05m

London Stansted

Fri 11/7

8:20 am-11:56 pm

3 stops21h 36m

$1,914

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Mon 9/1

3:16 pm-7:50 am

3 stops34h 34m

$481

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sun 10/19

3:30 pm-3:30 pm

2 stops18h 00m

$496

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Fri 10/17

3:30 pm-8:45 pm

2 stops23h 15m

$509

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Sun 10/19

3:30 pm-2:00 pm

1 stop16h 30m

$595

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Tue 9/2

6:06 am-7:50 am

2 stops19h 44m

$633

St. LouisLondon

STL - STN

STLSTN

Lambert-St Louis

Fri 9/5

1:00 pm-4:35 pm

3 stops21h 35m

$726

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

When to book flights from St. Louis to London Stansted Airport

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

Estimated round-trip price

Cheap St. Louis to London Stansted Airport (STL to STN) flight deals and tips

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

Direct flights	None

There are no direct flights from St. Louis to London Stansted Airport. There are no popular flight routes from St. Louis to London Stansted Airport.

Search flight deals

How far is Lambert-St Louis to London Stansted by plane?
There are 4199.6 mi between Lambert-St Louis and London Stansted. By plane, this route typically takes 16h 05m.
When did momondo last update prices for flights from Lambert-St Louis Airport to London Stansted Airport?
Prices for flights from Lambert-St Louis Airport to London Stansted Airport are updated daily.
How old do you have to be to fly from Lambert-St Louis Airport to London Stansted Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to London Stansted Airport.
What documentation or ID do you need to fly to London Stansted Airport?
The travel and health documents you'll need for your trip to London Stansted Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Stansted Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

How do I get Price Alerts for flights from St. Louis to London Stansted Airport?
You can take advantage of momondo’s Price Alerts by first searching for your flights to St. Louis from London Stansted Airport. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from St. Louis to London Stansted Airport with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Hounslow

Gatwick

Luton

Dover

Slough

Milton Keynes

Guildford

Dartford

Crawley

Hayes

Chelmsford

Stansted

Brentwood

Ilford

Folkestone

Colchester

Watford

Richmond

Canterbury

Croydon

Why use momondo?

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

Finding the right flight to London from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to London from St. Louis with this policy.

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

momondo helps you find the best flight between St. Louis and London 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 St. Louis to London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Stansted Airport 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

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Tue 8/26

Tue 9/2

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Cheap flights from St. Louis to London from $481

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to London departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from St. Louis to London (STL-STN)

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

momondo Fare Finder

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

When to book flights from St. Louis to London Stansted Airport

Cheap St. Louis to London Stansted Airport (STL to STN) flight deals and tips

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

Direct flights

How far is Lambert-St Louis to London Stansted by plane?

When did momondo last update prices for flights from Lambert-St Louis Airport to London Stansted Airport?

How old do you have to be to fly from Lambert-St Louis Airport to London Stansted Airport?

What documentation or ID do you need to fly to London Stansted Airport?

How do I get Price Alerts for flights from St. Louis to London Stansted Airport?

How can I save money on flights from St. Louis to London Stansted Airport with momondo?

How does momondo find its flight prices?

Traveling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London Stansted Airport 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo