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Cheap Flights from St. Louis to London $773.55

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Cheapest Flights from St. Louis to London (STL to LHR)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from St. Louis to London (STL to LHR)

Question : Can you cut down on flight costs by changing the day of the week you travel to London?
Answer : Monday is your cheapest day to fly in May. Being flexible with your travel days garners even more savings during booking.

Question : Which airline is giving the best deals for round-trip flights from Lambert-St. Louis International Airport (STL) to London Heathrow Airport (LHR)?
Answer : American Airlines is the leader in keeping costs down for their passengers over the next three months. Fares are being booked at just $694 and, when compared to the high-end bookings of $6,116, it's quite a deal.

Question : How many days should you spend in London?
Answer : Over the next two months, travelers from STL to LHR are planning on staying for nine days on average.

Question : In the next four weeks, what day should you book your trip?
Answer : Since low prices are preferred, look at May 1st. As of Apr 24th, it's showing the cheapest ticket sales at $694. That is 42% below the average price for this route, so you can spend that extra cash on an adventure in London.

Question : How much should a trip from Saint Louis (STL) to London (LHR) cost?
Answer : Prices for this trip tend to fluctuate more than other flights from the United States. They can range from $694 to $6,116. Prices tend to be lower the further out you book.