St. Louis (STL) → London (LHR)
About St. Louis to London Flights
Discover the best flights from St. Louis to London, covering 6,742 km in approximately 8h 56m. St. Louis (STL) to London (LHR) is one of the major long-haul routes connecting United States and United Kingdom. With 7 major airlines operating this route, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from St. Louis to London.
12-Month Price History
Flight prices from St. Louis to London vary significantly throughout the year. February typically offers the best deals with average prices around $1295, while July sees the highest prices, averaging $2173. Savvy travelers can save up to 40% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
117 days
For best prices
Booking Tips
For the best prices on St. Louis to London flights, we recommend booking 70 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
United Airlines UA | $1210 | $4180 | $6690 |
Delta Air Lines DL | $1350 | $4750 | $7700 |
American Airlines AA | $1430 | $5010 | $7860 |
Air France AF | $1440 | $4780 | $8360 |
British Airways BA | $1460 | $4760 | $8300 |
Emirates EK | $1520 | $6290 | $9280 |
Lufthansa LH | $1560 | $5290 | $7770 |
United Airlines
UA
Economy
$1210
Business
$4180
First
$6690
Delta Air Lines
DL
Economy
$1350
Business
$4750
First
$7700
American Airlines
AA
Economy
$1430
Business
$5010
First
$7860
Air France
AF
Economy
$1440
Business
$4780
First
$8360
British Airways
BA
Economy
$1460
Business
$4760
First
$8300
Emirates
EK
Economy
$1520
Business
$6290
First
$9280
Lufthansa
LH
Economy
$1560
Business
$5290
First
$7770
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
St. Louis → London
St. Louis Lambert International (STL) to Gatwick (LGW)
Distance: 6,775 km
Average price: $1451
St. Louis → Birmingham
St. Louis Lambert International (STL) to Birmingham (BHX)
Distance: 6,615 km
Average price: $1420
St. Louis → Birmingham
St. Louis Lambert International (STL) to Birmingham (BHX)
Distance: 6,615 km
Average price: $1420
St. Louis → Bristol
St. Louis Lambert International (STL) to Bristol (BRS)
Distance: 6,605 km
Average price: $1418
Don't Forget Travel Insurance!
Found your flight? Protect your trip with SafetyWing's comprehensive travel insurance. Perfect for trips to London, United Kingdom.
- Medical coverage up to $250,000
- Trip interruption & delays covered
- Lost luggage protection included
From just $45/month • Works in 180+ countries • COVID-19 coverage included
Trusted by 100,000+ travelers
Frequently Asked Questions
How long is the flight from St. Louis to London?
The flight time from St. Louis (STL) to London (LHR) is approximately 8 hours and 56 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between St. Louis and London?
The aerial distance between St. Louis and London is 6,742 kilometers (4,189 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from St. Louis to London?
Several airlines operate flights between St. Louis and London, including British Airways, American Airlines, Delta Air Lines and 4 more airlines. Most flights on this route include one or more stops.
What is the cheapest month to fly from St. Louis to London?
Based on historical data, February typically offers the lowest airfares for flights from St. Louis to London. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to London?
For the best prices on St. Louis to London flights, we recommend booking 130 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from St. Louis to London?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to United Kingdom should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between St. Louis and London?
St. Louis operates on America/Chicago time zone, while London is in the Europe/London time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.