$437 Cheap Flights from St. Louis to London

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly from Lambert-St. Louis Intl. to Heathrow

Amazing STL to LHR Flight Deals

The cheapest flights to Heathrow found within the past 7 days were $490 round trip and $437 one way. Prices and availability subject to change. Additional terms may apply.

FAQs about flights from Lambert-St. Louis Intl. Airport (STL) to Heathrow Airport (LHR)

Can I catch a flight from St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) to London Airport (LHR-Heathrow) right now?

For info on any present London Airport (LHR-Heathrow) quarantine requirements and travel advice, visit our Covid-19 Travel Advisor. Check before you arrange your flight, so you don't get caught out en route.

Are there direct flights from St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) to London Airport (LHR-Heathrow)?

Take note of your connecting gate, because there are no direct flights on the St. Louis Lambert International Airport to Heathrow Airport route. American Airlines, British Airways and Delta are among the airlines that will fly you to London with only one stopover.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Heathrow Airport (LHR), please visit our Customer Service Portal.

How long is the flight from St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) to Heathrow Airport (LHR)?

Taking around 10 hours and 52 minutes in total, flying from St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) to LHR is no piece of cake. On such a long journey, it's a smart idea to walk around and stretch your legs as often as you can.

What is the flight distance from St. Louis Lambert International Airport to LHR?

From St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) to London Heathrow, the flight distance is 4,971 mi. It's a long ride, so make sure you bring all the basics. A pair of compression socks and a neck pillow are some important items to begin with.

What airlines fly from STL to Heathrow Airport (LHR)?

As it stands, no single airline flies straight to Heathrow Airport from Lambert-St. Louis Intl. Airport (STL). Touching down there will involve one stopover at least. Lock in your airfare early to get the best price and connections.

What airlines have practices regarding COVID-19 in place and use social distancing?

From the moment you enter the departure terminal to when you leave the arrivals terminal, if you're flying with British Airways, Virgin Atlantic or Aer Lingus you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2020, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

 

Traveling From Lambert-St. Louis Intl.
Traveling To Heathrow
Shortest Flight Time hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price $490

Route Info

Flight path for flights from Lambert-St. Louis International Airport to London Heathrow Airport.

Distance:
4,349.00 miles

Discover our best flights from St. Louis STL to London LHR. 

With 13 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from St. Louis STL to London LHR at the right price  

Airfares to London LHR from St. Louis STL currently cost between $490 and $608. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from St. Louis STL to London LHR 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from St. Louis STL to London LHR on Travelocity starting at $437. Prices and availability subject to change. Additional terms may apply. 

 

Get to London LHR from St. Louis STL quicker with direct flights. 

Get to London faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to LHR from STL to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from St. Louis STL to London LHR

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to LHR from STL. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from St. Louis STL to London LHR today 

If you’re flexible about when you travel, April is usually the cheapest month to fly from St. Louis STL to London LHR. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to London LHR from St. Louis STL 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to LHR from STL have this option.  

 

Travel with confidence when you book flights to London LHR from St. Louis STL with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.