Cheap flights from London Heathrow Airport to St. Louis from $486
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to St. Louis departing on 11/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London Heathrow Airport to St. Louis
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from London Heathrow Airport to St. Louis
All round-trip flight deals to St. Louis
Lufthansa flights from London Heathrow Airport to St. Louis
Our best Lufthansa deals on London Heathrow Airport to St. Louis flight tickets
Austrian Airlines flights from London Heathrow Airport to St. Louis
Our best Austrian Airlines deals on London Heathrow Airport to St. Louis flight tickets
How to get the cheapest flight ticket from London Heathrow Airport to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly from London Heathrow Airport to St. Louis?
February. The cheapest time of year to fly to St. Louis from London Heathrow Airport is February. Most expensive is August
What is the cheapest day to depart London Heathrow Airport for St. Louis?
Wednesday. The cheapest day of the week is typically Wednesday. The most expensive is typically Saturday
When is the cheapest time to fly from London Heathrow Airport to St. Louis?
In the afternoon. London Heathrow Airport to St. Louis flights are approximately 12% more expensive in the morning than in the afternoon
What is the cheapest airline that flies to St. Louis from London Heathrow Airport?
United Airlines. United Airlines, British Airways, and American Airlines are the most popular carriers operating from London Heathrow Airport to St. Louis
How far in advance should you book London Heathrow Airport to St. Louis flights?
15 days before. The cheapest time to buy a flight from London Heathrow Airport to St. Louis is approximately 15 days to departure
Can stopping save me money on London Heathrow Airport to St. Louis flights?
You could potentially save up to 37% on your flight if you consider stops on a London Heathrow Airport to St. Louis flight.
How have London Heathrow Airport to St. Louis flight prices changed over time?
As of November 2024, prices for London Heathrow Airport to St. Louis flights are approximately 3% more expensive when compared to flights at the same time last year.
When to book flights from London Heathrow Airport to St. Louis
Cheap London Heathrow Airport to St. Louis (LHR to STL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to St. Louis
How far is London Heathrow to Lambert-St Louis by plane?
The straight-line distance from London Heathrow to Lambert-St Louis is 4185.8 mi. By plane, this route typically takes 13h 11m.
When did momondo last update prices for flights from London Heathrow Airport to Lambert-St Louis Airport?
Prices for flights from London Heathrow Airport to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from London Heathrow Airport to Lambert-St Louis Airport?
The number of operators available for flights from London Heathrow Airport to Lambert-St Louis Airport is 3 as of November 2024.
How old do you have to be to fly from London Heathrow Airport to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London Heathrow Airport to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to St. Louis is British Airways (51.39% of total bookings). The next most popular airlines are American Airlines (26.39%) and United Airlines (22.22%).
Best airlines flying from London Heathrow Airport to St. Louis
Compare and see reviews for airlines that fly from London Heathrow Airport to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $278 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $583 | Free Cancellation | Rating 7.4 9,226 reviews | |||
| PriceFrom $961 | Free Cancellation | Rating 6.7 6,842 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to St. Louis?
It is quick and easy to find London to St. Louis flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.
Can I find flights from London to St. Louis with flexible booking policies on momondo?
momondo does allow users to show only those flights to St. Louis from London which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from London to St. Louis?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from London.
I’m not ready to book a flight from London to St. Louis right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to St. Louis from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.