STL to LHR (St. Louis to London) Flights

Last Minute Flights from STL to LHR

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
STLLondonOctober 4 to October 13$1,089
*Prices include taxes and fees

Cheapest STL to LHR Flights

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
STLLondonOctober 10 to October 20$754
STLLondonApril 20 to April 27$776
STLLondonApril 20 to April 27$779
STLLondonApril 21 to April 28$791
STLLondonApril 20 to April 27$820
*Prices include taxes and fees
STL to LHR Flight Details
Origin airport
Lambert-St. Louis Intl.
Origin airport IATA code
STL
Destination airport
Heathrow
Destination airport IATA code
LHR
Distance
4189 mi

Frequently asked questions

What airlines fly direct from Lambert Field to Heathrow Airport (LHR)?
Unfortunately, there aren't any air carriers that fly straight from STL to Heathrow Airport. If you want to reach Hounslow, book a flight with one or more stops.
How many flights are there from STL to LHR?
There are approximately 56 daily flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LHR-Heathrow), so you have ample opportunities to get to Hounslow. Just select a time and date that matches your plans and secure your seat.
How long does it take to fly from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LHR-Heathrow)?
The St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LHR-Heathrow) route has a flight time of around 10 hours and 42 minutes. A well-located seat is essential on long flights, so research the plane's layout before selecting where you sit.
What is the flight distance from St. Louis, MO (STL-Lambert-St. Louis Intl.) to London (LHR-Heathrow)?
Approximately 4,200 miles (6,800 1). This means it's a long-haul journey, so make sure your hand luggage is stuffed with essentials like a neck pillow, earbuds and a sweater.
How many morning flights are there from STL to LHR?
Early birds, you'll be delighted to hear that there are 235 morning flights from STL to LHR a week.

  • You can depart at 5:00AM if you book with American Airlines (AA). It has 101 weekly flights from STL to LHR.
  • Another option is United Airlines. This carrier has 60 early flights every week. 6:00AM is the earliest.
  • Reserve a seat with Delta Air Lines (DL) and you'll have 55 morning flights to choose between. The earliest departure time from STL is 5:36AM.

How many afternoon flights are there from STL to LHR?
With 158 afternoon and evening flights from STL to LHR per week, you can forget about dragging yourself out of bed at the crack of dawn.

  • Book a ticket with American Airlines (AA), which has 65 flights each week that leave after midday. 12:03PM is the earliest of those flights.
  • United Airlines (UA) offers 52 afternoon and evening flights each week. The first one leaves at 12:20PM.
  • Another top choice is Delta Air Lines (DL). Choose from 29 afternoon and evening flights every week from 12:00PM onward.

What is the earliest departure time out of St. Louis to Hounslow?
The earliest flight sets off from STL at 5:00AM and arrives at 4:45AM at LHR. Don't forget to give yourself enough time in the morning to easily make it to your gate.
What is the latest departure time out of St. Louis to Hounslow?
The last flight leaves the tarmac at STL at 7:20PM and lands at LHR at 8:25AM. You'll have more than enough time to prepare for this journey.
What is the average price from St. Louis to Hounslow?
Round-trip tickets from STL to LHR start from around $754. Book yours today and lock in a great deal. This price was available on Flights.com within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Plan Your Trip