HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London City

$420+ Cheap flights from St. Louis (STL) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LCY
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to London City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to London City

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$581
(Air Canada)

One-way from

$420
(Mytrip)

Popular in

June

Cheapest in

April

Average price

$799
From Lambert-St Louis to London City
Search Deals
One-way flight from Lambert-St Louis to London City
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($249 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from St. Louis to London City

Cheapest flights from St. Louis to London City
Explore the most affordable flight options available from St. Louis to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This oojo deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/185:52 pmSTL - LCY
2 stops35h 38mBritish Airways
Wed 8/277:05 pmLCY - STL
2 stops29h 24mBritish Airways
Deal found 8/11$588
This KAYAK deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/53:50 pmSTL - LCY
1 stop11h 15mLufthansa
Tue 11/119:50 amLCY - STL
1 stop34h 05mLufthansa
Deal found 8/14$618
This oojo deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/245:32 pmSTL - LCY
2 stops36h 23mBritish Airways
Fri 9/54:05 pmLCY - STL
2 stops34h 43mBritish Airways
Deal found 8/12$646
This Cheapflightsfares deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:30 pmSTL - LCY
1 stop21h 05mLufthansa
Wed 10/299:50 amLCY - STL
2 stops18h 54mLufthansa
Deal found 8/13$658
This KAYAK deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/15:30 pmSTL - LCY
2 stops19h 05mLufthansa
Thu 9/118:45 amLCY - STL
1 stop34h 45mLufthansa
Deal found 8/11$672
This oojo deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/263:59 pmSTL - LCY
2 stops45h 11mBritish Airways
Fri 10/34:05 pmLCY - STL
2 stops34h 43mBritish Airways
Deal found 8/12$681
This KAYAK deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/15:30 pmSTL - LCY
2 stops19h 05mLufthansa
Mon 9/85:00 pmLCY - STL
2 stops28h 44mLufthansa
Deal found 8/11$683
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:27 amSTL - LCY
2 stops19h 03mMultiple Airlines
Tue 9/168:45 amLCY - STL
2 stops15h 38mMultiple Airlines
Deal found 8/14$684
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:17 amSTL - LCY
2 stops16h 53mMultiple Airlines
Wed 9/178:45 amLCY - STL
2 stops16h 42mMultiple Airlines
Deal found 8/12$690
This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2312:20 pmSTL - LCY
2 stops24h 50mBritish Airways
Fri 9/54:05 pmLCY - STL
2 stops34h 43mBritish Airways
Deal found 8/13$695

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to London City 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, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from St. Louis to London City Airport that are best for you.

Fly from

St. Louis

Fly to

London City

Route

Depart

Return

Price

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 1/14

4:05 pm-12:50 pm

2 stops14h 45m

London City

Wed 1/21

9:50 am-3:29 pm

2 stops35h 39m

$581

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Mon 9/1

7:41 pm-10:10 am

2 stops32h 29m

London City

Tue 9/9

7:00 pm-8:15 pm

2 stops31h 15m

$588

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 11/5

3:50 pm-9:05 am

1 stop11h 15m

London City

Thu 11/13

6:15 pm-1:55 pm

1 stop25h 40m

$618

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 11/5

3:50 pm-9:05 am

1 stop11h 15m

London City

Tue 11/11

9:50 am-1:55 pm

1 stop34h 05m

$618

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 1/28

4:05 pm-12:50 pm

2 stops14h 45m

London City

Wed 2/4

9:50 am-3:29 pm

2 stops35h 39m

$641

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Sun 8/24

5:32 pm-11:55 am

2 stops36h 23m

London City

Fri 9/5

4:05 pm-8:48 pm

2 stops34h 43m

$646

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 10/15

3:30 pm-6:35 pm

1 stop21h 05m

London City

Wed 10/29

9:50 am-11:44 pm

2 stops18h 54m

$658

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Mon 9/1

5:30 pm-6:35 pm

2 stops19h 05m

London City

Thu 9/11

8:45 am-1:30 pm

1 stop34h 45m

$672

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Fri 9/26

3:59 pm-7:10 pm

2 stops45h 11m

London City

Fri 10/3

4:05 pm-8:48 pm

2 stops34h 43m

$681

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Mon 9/22

11:30 am-12:30 pm

2 stops19h 00m

London City

Tue 9/30

8:45 am-10:35 pm

2 stops19h 50m

$683

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 18 results
1
2

Best time to book a flight from St. Louis to London City

Have a flexible travel schedule? Discover the best time to fly to London City from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to London City?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to London City. 0 airlines have flights from Lambert-St Louis to London City on a regular basis. Booking flights from Lambert-St Louis to London City should not be difficult; the airport handles an average of 0 outbound flights to London City per day.

  • Can I find deals for flights from St. Louis to London City that include hotel bookings?

    Yes. In addition to deals on St. Louis to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to London City.

  • Can I find deals for business class flights from St. Louis to London City?

    Yes. Cheapflights offers flight deals from St. Louis to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to London City Airport?

    Currently, April is the cheapest month in which you can book a flight from St. Louis to London City Airport (average of $686). Flying from St. Louis to London City Airport in July is currently the most expensive (average of $1,046). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Orpington
Watford
Gatwick
Borehamwood
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Arundel
Eastbourne
Milton Keynes
Sutton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.