Cheap flights from St. Louis (STL) to Heathrow (LHR) from $370

Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to London Heathrow from St. Louis. Booking flights from Lambert-St Louis (STL) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 11 different airlines.

Yes, there are multiple flights from St. Louis to London Heathrow Airport for under $700. The cheapest flight booked recently is on American Airlines for just $617, but on average you can expect to pay $643.

There are currently 20+ open flights from St. Louis to London Heathrow Airport within the next 7 days for less than $1,100.

According to our current data, American Airlines ($617), United Airlines ($631), and Air Canada ($634) offers the cheapest pricing from St. Louis to London Heathrow Airport. American Airlines is 30% cheaper than the average price of flights available within the next 90 days to this destination.

For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $446. Users have also found prices from $466 and $478 on Virgin Atlantic and KLM, respectively.

This is defined as Lambert-St Louis Airport (STL) and London Heathrow Airport (LHR). Codes like London Heathrow Airport are often used to just call airports uniquely.

The amount of baggage you can bring on your St. Louis to Heathrow flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Yes, Cheapflights allows you to browse and filter St. Louis to Heathrow flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Yes. In addition to deals on St. Louis to Heathrow flights, Cheapflights offers vacation 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 St. Louis to Heathrow.

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

Many airlines flying from St. Louis to Heathrow offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Yes, you can often find last-minute deals on St. Louis to Heathrow flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

The St. Louis to London Heathrow Airport flight deals you see on this page were last updated on 6/11.

The most popular airlines flying from St. Louis to London Heathrow Airport are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

Currently, November is the cheapest month in which you can book a flight from St. Louis to London Heathrow Airport (average of $652). Flying from St. Louis to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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.