Cheap Flights from London to St. Louis
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Flights from London to St. Louis
Airlines Flying from London to St. Louis
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Flight deals from London to St. Louis
We've found these cheap flights for you. You can book one-way or return flight tickets.
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Round-trip
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One way
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LHR 09:3517h 20m1 stopsSTL 20:55London - St. Louis | Tue, Jul 1 | Virgin Atlantic
STL 06:1518h 10m1 stopsLHR 06:25St. Louis - London | Tue, Jul 8 | American AirlinesHK$5,674 HK$7,18721% OFF21% OFFHK$7,187 HK$5,674 -
LHR 16:5021h1 stopsSTL 07:50London - St. Louis | Mon, Jun 23 | Air France
STL 11:3015h 45m1 stopsLHR 09:15St. Louis - London | Mon, Jun 30 | Southwest AirlinesHK$5,736 HK$7,18720% OFF20% OFFHK$7,187 HK$5,736 -
LHR 18:5019h1 stopsSTL 07:50London - St. Louis | Mon, Jun 23 | KLM
STL 07:1017h 15m1 stopsLHR 06:25St. Louis - London | Mon, Jun 30 | Southwest AirlinesHK$5,736 HK$7,18720% OFF20% OFFHK$7,187 HK$5,736 -
LHR 09:3516h 40m1 stopsSTL 20:15London - St. Louis | Wed, Jul 2 | Virgin Atlantic
STL 06:1521h 45m1 stopsLHR 10:00St. Louis - London | Wed, Jul 9 | Southwest AirlinesHK$5,75320% OFFHK$7,187 HK$5,753
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LGW 12:0025h 50m1 stopsSTL 07:50London - St. Louis | Tue, Jun 10 | Virgin Atlantic
STL 06:2018h 5m1 stopsLHR 06:25St. Louis - London | Sun, Jun 15 | Southwest AirlinesHK$5,83219% OFFHK$7,187 HK$5,832
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LHR 09:4517h 10m1 stopsSTL 20:55London - St. Louis | Tue, Jul 1 | British Airways
STL 10:2016h 50m1 stopsLHR 09:10St. Louis - London | Tue, Jul 8 | American AirlinesHK$5,85119% OFFHK$7,187 HK$5,851 -
LHR 09:3517h 20m1 stopsSTL 20:55London - St. Louis | Wed, Jun 25 | Virgin Atlantic
STL 06:0418h 21m1 stopsLHR 06:25St. Louis - London | Wed, Jul 2 | American AirlinesHK$5,86518% OFFHK$7,187 HK$5,865
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LGW 13:0516h 29m1 stopsSTL 23:34London - St. Louis | Thu, Jul 3 | Norse Atlantic Airways
STL 07:3016h 50m1 stopsLGW 06:20St. Louis - London | Thu, Jul 10 | United AirlinesHK$5,87318% OFFHK$7,187 HK$5,873 -
LHR 09:3017h 25m1 stopsSTL 20:55London - St. Louis | Tue, Jul 1 | United Airlines
STL 10:2017h1 stopsLHR 09:20St. Louis - London | Tue, Jul 8 | American AirlinesHK$5,87518% OFFHK$7,187 HK$5,875 -
LHR 18:5022h 58m1 stopsSTL 11:48London - St. Louis | Thu, May 29 | Virgin Atlantic
STL 06:0018h 25m1 stopsLHR 06:25St. Louis - London | Tue, Jun 3 | Delta Air LinesHK$5,89318% OFFHK$7,187 HK$5,893
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LON 13:0017h 25m1 stopsSTL Invalid DateLondon - St. Louis | Sat, May 24 | Normal Airline
STL 15:006hDirectLON 16:00St. Louis - London | Mon, May 26 | Normal AirlineFind More FlightsFind More Flights
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LGW 14:0015h 37m1 stopsSTL 23:37London - St. Louis | Wed, Jun 4 | Norse Atlantic AirwaysHK$2,475 HK$4,68847% OFF47% OFFHK$4,688 HK$2,475
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LGW 14:0015h 52m1 stopsSTL 23:52London - St. Louis | Thu, May 29 | Norse Atlantic AirwaysHK$2,533 HK$4,68846% OFF46% OFFHK$4,688 HK$2,533
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LGW 14:0015h 37m1 stopsSTL 23:37London - St. Louis | Thu, Jun 5 | Norse Atlantic AirwaysHK$2,647 HK$4,68844% OFF44% OFFHK$4,688 HK$2,647
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LGW 14:0015h 37m1 stopsSTL 23:37London - St. Louis | Tue, Jun 3 | Norse Atlantic AirwaysHK$2,69243% OFFHK$4,688 HK$2,692
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LGW 14:0015h 44m1 stopsSTL 23:44London - St. Louis | Sat, May 31 | Norse Atlantic AirwaysHK$2,74042% OFFHK$4,688 HK$2,740
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LGW 14:0015h 53m1 stopsSTL 23:53London - St. Louis | Thu, Jun 12 | Norse Atlantic AirwaysHK$2,74142% OFFHK$4,688 HK$2,741
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LGW 14:0015h 37m1 stopsSTL 23:37London - St. Louis | Sat, Jun 7 | Norse Atlantic AirwaysHK$2,75341% OFFHK$4,688 HK$2,753
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LGW 14:0015h 53m1 stopsSTL 23:53London - St. Louis | Sun, Jun 15 | Norse Atlantic AirwaysHK$2,98136% OFFHK$4,688 HK$2,981
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LGW 10:0019h 59m1 stopsSTL 23:59London - St. Louis | Tue, Jun 24 | Norse Atlantic AirwaysHK$3,23631% OFFHK$4,688 HK$3,236
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LGW 14:0015h 52m1 stopsSTL 23:52London - St. Louis | Sun, May 25 | Norse Atlantic AirwaysHK$3,84518% OFFHK$4,688 HK$3,845
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LON 13:0017h 25m1 stopsSTL Invalid DateLondon - St. Louis | Sat, May 24 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Flight Information from London to St. Louis
| Cheapest one-way flight price | HK$2,474 |
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| Off-season travel month | April |
| Peak season for travel | February |
| Flight distance | 6,757.51km |
| Popular airline | Iberia |
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
FAQ
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When are flight tickets from London (LON) to St. Louis (STL) the cheapest?
Airlines adjust prices for flights from London to St. Louis based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much are flights from London (LON) to St. Louis (STL) cost?
According to Trip.com's data, the lowest price is around HK$12,839. -
How many airports in St. Louis (STL)?
There are 2 airport(s) in St. Louis (STL): St. Louis Downtown Airport and St. Louis Lambert International Airport.
How to find a cheap flight from London to St. Louis
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from London to St. Louis. Book your flights at the right time and save more.
Be flexible with your travel dates to get the cheapest flight from London to St. Louis.
Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from London to St. Louis over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Wed, Jun 4, with one-way flights priced at just HK$2475.
Compare cheap flight deals from London to St. Louis across hundreds of airlines.
With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from London to St. Louis. The cheapest airline for this route is Norse Atlantic Airways.
Set up a Price Alert
By setting up a Price Alert for your journey from London to St. Louis, you can easily keep an eye on ticket prices without having to check every day.
Don't miss out on cheap flight deals and promo codes from London to St. Louis.
You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.
Book early or wait until the last minute.
It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.
Search for flights on the go.
For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from London to St. Louis and snag some exclusive deals just for you.
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