Cheap flights from London to St. Louis from £339

Lambert-St Louis (STL) is the airport you will fly into if you book a flight from London to St. Louis. You should not have trouble finding flights to Lambert-St Louis from London; the airport handles an average of 2 inbound flights from London per day. You should also have plenty of airline options to choose from since 10 airlines have flights to the St. Louis airport from London. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

For as low as £772, British Airways can have you in St. Louis from London in 12h 13m. Airlines will cover a distance of 4186 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

Our cheapest airline available from London to St. Louis is American Airlines. Our recent data shows that you can find tickets from as low as £174 on this airline. Additional options worth looking into are Aer Lingus and British Airways, starting at £369 and £480 round-trip. These flights start at 77% lower than the current average price 3 months from now.

To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £344. United Airlines flights start at £359 while deals on Virgin Atlantic start at £514 one-way.

When deciding which route to take from London to St. Louis consider London Heathrow - Lambert-St Louis, London Stansted - Lambert-St Louis or London Gatwick - Lambert-St Louis as they are the most popular.

Consider American Airlines (84%), Aer Lingus (84%) or Finnair (84%) when booking your flight. These represent the most reliable airlines when flying from London to St. Louis.

The cheapest flight price from London to St. Louis is £454. On average you can expect to pay £841. The most popular route, (London Heathrow - Lambert-St Louis), can usually be booked for £540.

The most popular stopover on flights from London to St. Louis is Chicago.

Grant Park, Magnificent Mile, and River North are currently the most popular points of interest in Chicago at the moment. Grant Park, Magnificent Mile, and River North are located about 16.2 mi, 15.5 mi, and 15.0 mi, respectively from Chicago O'Hare Intl. Travellers in need of a car in Chicago can hire one for about £44 per day.

London to St. Louis flights have a stopover in Philadelphia the least frequently.

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

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

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

Currently, August is the cheapest month in which you can book a flight from London to St. Louis (average of £68). Flying from London to St. Louis in June is currently the most expensive (average of £577). 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.