Beginning of main content
Return Icon
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5

Search over 1,000,000 properties worldwide and 550 airlines worldwide

Search over a million flights, hotels, packages, and more

No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheap Flights from London to St. Louis

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

London to St. Louis route information

Origin Airport Heathrow
Destination Airport Lambert-St. Louis Intl.
Airlines Serving Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, SAS, United, Virgin Atlantic
Flight Price £275
Distance 6,703 km





Cheap LHR to STL Flights

  • What airports do you fly into for Saint Louis?

    There is more than one way to fly to Saint Louis. London City Airport is only 22 miles away from LHR, and flights are 33% cheaper on average for the upcoming two months. Save and put that extra money toward your next adventure.
  • What is the cheapest date to fly to Saint Louis?

    As of Oct 14th, the best day for booking to Saint Louis (STL) is Oct 19th. A ticket will cost you £671, which is 61% less than this route's average price.
  • How much is a plane ticket to Saint Louis (STL) from London (LHR)?

    Costs can range anywhere from £671 to £4,424, as prices for LHR to STL do change a lot more than the majority of routes from the United Kingdom. Prices are usually cheaper the further out you book.
  • What is the cheapest day to fly from London to Saint Louis?

    The cheapest day to fly to Saint Louis from London is on Thursday. If you would like to save a little cash on your next trip look for flights on that day.
  • How much time do people spend in Saint Louis?

    The average time spent sightseeing in Saint Louis by passengers from London is about two weeks. However long you decide to stay, give yourself plenty of time to see what makes Saint Louis fantastic.
  • What is the cheapest airline flying from London to Saint Louis?

    Air Canada is offering the best deal at £671. Better look quickly because prices range all the way up to £4,424 over the next three months.
  • Can I change the date of my flight?

    You sure can switch your departure or arrival date and you may save by changing it. The cheapest day to fly in October is Thursday. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.

Missouri Flights

When looking for plane tickets to Missouri, the ease and convenience of using Expedia simply can’t be beat. With tons of departure points and flights options from the top airline carriers, London gives you the widest array of cheap flights to Missouri. Look for Missouri airfare with the assurance that you have one of the world's leading full-service online travel brands working for you.

Expedia lets you search across the largest number of airlines and Missouri flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Missouri flight!

Browse through dozens of options at great prices! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Missouri trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Missouri flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights to Missouri from London. Use us as your stop travel destination and have the confidence that you’re getting a bargain!