Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from St. Louis to London from $396

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 10/15. 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 St. Louis to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
12:20 pm - 5:55 pm
STL
-
LCY
23h 35m
2 stops
Lufthansa Logo
9:50 am - 12:34 am
LCY
-
STL
19h 44m
2 stops
$1,073Lufthansa
Wed, Oct 21 - Wed, Oct 28
Delta Logo
11:00 am - 7:15 am
STL
-
LCY
14h 15m
2 stops
Delta Logo
9:20 am - 10:03 pm
LCY
-
STL
18h 43m
2 stops
$1,079Delta
Mon, Aug 3 - Sat, Aug 15
Lufthansa Logo
3:30 pm - 5:55 pm
STL
-
LCY
20h 25m
1 stop
Lufthansa Logo
6:30 pm - 1:25 pm
LCY
-
STL
24h 55m
1 stop
$1,080Lufthansa
Sun, Sep 20 - Sun, Sep 27
Lufthansa Logo
3:30 pm - 5:55 pm
STL
-
LCY
20h 25m
1 stop
Lufthansa Logo
6:30 pm - 1:25 pm
LCY
-
STL
24h 55m
1 stop
$1,085Lufthansa
Tue, Sep 8 - Sun, Sep 13
Lufthansa Logo
3:30 pm - 5:55 pm
STL
-
LCY
20h 25m
1 stop
Lufthansa Logo
9:15 am - 10:59 pm
LCY
-
STL
19h 44m
2 stops
$1,091Lufthansa
Tue, Aug 11 - Fri, Aug 21
Lufthansa Logo
12:27 pm - 5:55 pm
STL
-
LCY
23h 28m
2 stops
Lufthansa Logo
9:15 am - 10:59 pm
LCY
-
STL
19h 44m
2 stops
$1,096Lufthansa
Tue, Aug 11 - Fri, Aug 21
Lufthansa Logo
3:30 pm - 5:55 pm
STL
-
LCY
20h 25m
1 stop
Lufthansa Logo
9:15 am - 10:59 pm
LCY
-
STL
19h 44m
2 stops
$1,102Lufthansa
Wed, Sep 2 - Fri, Sep 11
Delta Logo
5:30 pm - 7:55 am
STL
-
LCY
32h 25m
2 stops
Delta Logo
1:45 pm - 5:10 pm
LCY
-
STL
33h 25m
2 stops
$1,117Delta
Sat, Sep 5 - Sun, Sep 13
Multiple Airlines Logo
12:10 pm - 8:40 am
STL
-
LCY
14h 30m
2 stops
Multiple Airlines Logo
9:50 am - 3:30 pm
LCY
-
STL
34h 40m
2 stops
$1,118Multiple Airlines
Wed, Oct 21 - Wed, Oct 28
Delta Logo
10:45 am - 9:30 am
STL
-
LCY
16h 45m
2 stops
Delta Logo
1:45 pm - 5:10 pm
LCY
-
STL
33h 25m
2 stops
$1,126Delta
Thu, Sep 10 - Sun, Sep 13

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

Aer Lingus flights from St. Louis to London City Airport

Our best Aer Lingus deals on St. Louis to London City Airport flight tickets
Aer Lingus
Aug 17
STL6:00 amLambert-St Louis
20h 35m
2 stops
LCY8:35 amLondon City
Aug 24
LCY8:30 pmLondon City
32h 53m
2 stops
STL11:23 pmLambert-St Louis
$1,324
Aer Lingus
Sep 9
STL7:44 amLambert-St Louis
18h 51m
2 stops
LCY8:35 amLondon City
Sep 14
LCY1:45 pmLondon City
15h 35m
2 stops
STL11:20 pmLambert-St Louis
$1,366
Aer Lingus
Sep 8
STL9:31 amLambert-St Louis
17h 04m
2 stops
LCY8:35 amLondon City
Sep 16
LCY1:45 pmLondon City
15h 35m
2 stops
STL11:20 pmLambert-St Louis
$1,374

Delta flights from St. Louis to London City Airport

Our best Delta deals on St. Louis to London City Airport flight tickets
Delta
Aug 3
STL11:00 amLambert-St Louis
14h 15m
2 stops
LCY7:15 amLondon City
Aug 15
LCY9:20 amLondon City
18h 43m
2 stops
STL10:03 pmLambert-St Louis
$1,079
Delta
Sep 5
STL5:30 pmLambert-St Louis
32h 25m
2 stops
LCY7:55 amLondon City
Sep 13
LCY1:45 pmLondon City
33h 25m
2 stops
STL5:10 pmLambert-St Louis
$1,117
Delta
Sep 10
STL10:45 amLambert-St Louis
16h 45m
2 stops
LCY9:30 amLondon City
Sep 13
LCY1:45 pmLondon City
33h 25m
2 stops
STL5:10 pmLambert-St Louis
$1,126

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to London City Airport 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 June 16, 2026.
Use the filters below to find and compare flights from St. Louis to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 10/21

12:20 pm-5:55 pm

2 stops23h 35m

London City

Wed 10/28

9:50 am-12:34 am

2 stops19h 44m

$1,073
Quickest round-trip

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Mon 8/3

11:00 am-7:15 am

2 stops14h 15m

London City

Sat 8/15

9:20 am-10:03 pm

2 stops18h 43m

$1,079

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Sun 9/20

3:30 pm-5:55 pm

1 stop20h 25m

London City

Sun 9/27

6:30 pm-1:25 pm

1 stop24h 55m

$1,080

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Tue 9/8

3:30 pm-5:55 pm

1 stop20h 25m

London City

Sun 9/13

6:30 pm-1:25 pm

1 stop24h 55m

$1,085

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Tue 8/11

3:30 pm-5:55 pm

1 stop20h 25m

London City

Fri 8/21

9:15 am-10:59 pm

2 stops19h 44m

$1,091

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Tue 8/11

12:27 pm-5:55 pm

2 stops23h 28m

London City

Fri 8/21

9:15 am-10:59 pm

2 stops19h 44m

$1,096

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 9/2

3:30 pm-5:55 pm

1 stop20h 25m

London City

Fri 9/11

9:15 am-10:59 pm

2 stops19h 44m

$1,102

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Sat 9/5

5:30 pm-7:55 am

2 stops32h 25m

London City

Sun 9/13

1:45 pm-5:10 pm

2 stops33h 25m

$1,117

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 10/21

12:10 pm-8:40 am

2 stops14h 30m

London City

Wed 10/28

9:50 am-3:30 pm

2 stops34h 40m

$1,118

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Thu 9/10

10:45 am-9:30 am

2 stops16h 45m

London City

Sun 9/13

1:45 pm-5:10 pm

2 stops33h 25m

$1,126

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

How to get the cheapest flight ticket from St. Louis to London City Airport

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

Can stopping save me money on St. Louis to London City Airport flights?

You could potentially save up to 53% on your flight if you consider stops on a St. Louis to London City Airport flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to London City 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 City Airport (STL to LCY) flight deals and tips

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

Fastest flight time

13h 11m

Direct flights

None
The fastest flight from St. Louis to London City Airport takes 13h 11m
There are no direct flights from St. Louis to London City Airport. There are no popular flight routes from St. Louis to London City Airport.
Search flight deals

Frequently asked questions about flying from St. Louis to London City Airport

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

    A flight from Lambert-St Louis to London City will travel around 4204.2 mi. By plane, this route typically takes 13h 11m.

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

    Prices for flights from Lambert-St Louis Airport to London City Airport were last updated today.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to London City Airport.

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

    The necessary travel and health documents for your London City Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Luton
Dover
Hayes
Crawley
Croydon
Wembley
Stansted
Harrow
Slough
Brentwood
Watford
Cobham
Guildford
Folkestone
Uxbridge
Romford
Chelmsford

Why use momondo?

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

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 St. Louis to London for you.

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

Flights from St. Louis to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for St. Louis to London 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 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 City 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
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 7/16
Thu 7/23
By creating a price alert you accept our terms of use and privacy policy.

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
Flights to London Heathrow Airportfrom $429
Flights to London Gatwick Airportfrom $379
Flights to London Stansted Airportfrom $409
Flights to London Luton Airportfrom $483
Flights to Glasgow Intl Airportfrom $539
Flights to London Southend Airportfrom $587
Flights to Belfast Intl Airportfrom $711
Flights to Belfast City Airportfrom $711