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Cheap LHR to STL Flights

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 Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, SAS, United, Virgin Atlantic
Flight Price $846
Distance 4,189 mi





Cheap LHR to STL Flights

  • Question : How long do most people visit Saint Louis?
    Answer : Of course, you're not most people, but if you were, you'd stay roughly 10 days.
  • Question : Can I change the date of my flight?
    Answer : Yes, you can adjust your departure date. If you would like to save a little cash in doing so, the cheapest day to fly in July is Saturday. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.
  • Question : What is the cheapest day to fly?
    Answer : The cheapest day to fly from London to Saint Louis is on Saturday. So, if you are trying to save a bit of cash on your next holiday look for flights on Saturday.
  • Question : How much is a plane ticket to Saint Louis (STL) from London (LHR)?
    Answer : They vary anywhere from $955 to $7,434. Booking in advance can usually help you get the cheapest rate. The further out you reserve your ticket, the more likely you are to save on your trip.
  • Question : What is the cheapest airline flying from London to Saint Louis?
    Answer : Aer Lingus strives to keep prices low for passengers over the next three months. Bookings are being made at just $955 and, when compared to the more expensive bookings of $7,434, it's a terrific bargain.
  • Question : What airports do you fly into for Saint Louis?
    Answer : London Heathrow Airport is a superb airport, but there are cheaper ways to get to Saint Louis— London City Airport. It's only 22 miles away and flights are booked 39% cheaper over the next two months.
  • Question : What is the cheapest day to fly to Saint Louis?
    Answer : As of Jun 17th, the cheapest day to fly from London to Saint Louis is Jun 19th. Tickets are currently $1,182, 46% below the average price.