$447 Find Cheap Flights from London to St. Louis - Compare and Save

You can speed up your journey through London Airports using the fast track system. At Heathrow Airport (LHR), fast-track passes cost about £12.50, while at Gatwick Airport (LGW), they cost about £5. Both fast-track services help you skip through security, allowing you more time to enjoy the departure lounge.

Getting to the city centre from St Louis Airport (STL) is easy, with a few transport options available. The MLR Red Line to Lambert East TRML Metrolink Station is a low-cost choice. The Red Line takes about 29min and has 12 stops. However, if you want to get to the city quicker, you can get a taxi from the front of the terminal, which takes around 19min.

If your flight is early in the morning, you can ensure you’re not in a rush by getting a hotel the night before. For example, at Heathrow Airport, you can go to the Ibis London Heathrow Airport, whereas at Gatwick Airport, you can go to Hilton London Gatwick Airport. The hotels are only a short walk to the terminal on the morning of your flight.

When you land at St. Louis Airport, you can use the Banking and Foreign Currency Exchange to convert your Pound Sterling to US Dollar. The currency exchange is in Terminal 1 on the lower level close to the Gate C Security checkpoint.

Among airlines operating London to St. Louis flights:

• American Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Only British Airways operates flights between London and St. Louis.

Flights from London to St. Louis may depart from several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN). Flights usually arrive at Lambert-St Louis (STL).

Here are some options for this route, based on selected ticket types and cabin classes:

• British Airways: a cabin bag and a checked bag in Economy Class
• Finnair: a cabin bag and a checked bag in Economy Class
• Iberia: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Three cabin classes are available on flights from London to St. Louis:

• Economy Class
• Premium Economy Class
• Business Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $763 round-trip via Minneapolis St Paul (MSP), compared to $1,050 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $74–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

One-stop flights from London to St. Louis most commonly connect through:

• Chicago O'Hare Intl (ORD) - 41% of one-stop connections
• Atlanta Hartsfield-Jackson (ATL) - 32% of one-stop connections
• Toronto Pearson Intl (YYZ) - 8% of one-stop connections
• Charlotte Douglas (CLT) - 5% of one-stop connections

Chicago O'Hare Intl (ORD) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 11% on the London to St. Louis route. Tuesday is the cheapest departure day at $907 round-trip on average, while Saturday is the most expensive at $1,019, a difference of $112. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London to St. Louis route, 16% of flights were delayed in the past 3 months, with delays averaging 1 hour 50 minutes.

Some of the most popular sights in St. Louis are Downtown St. Louis, Busch Stadium and Enterprise Center. These are among the most viewed places in St. Louis on KAYAK.

These are the earliest and latest flight times available from London to St. Louis:

• Earliest: departs at 4:25 pm and lands at 1:30 am
• Latest: departs at 4:25 pm and lands at 1:30 am.

The flight takes about 9h 05m.

Last-minute fares on this route - booked within 2 weeks of departure - run 20% above the route average of $958. Book 24 weeks before departure for the lowest fares.

A nonstop flight from London to St. Louis takes 9h 05m, covering 4,198 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

One-way fares from London to St. Louis are currently lower than usual. Average one-way flight prices are about $752, which is 13% below the typical average for this route.

British Airways is the only airline operating London to St. Louis flights. 84% of its flights are on time.

Afternoon flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Chicago O'Hare Intl (ORD) gives the shortest average 1-stop total travel time at 11h 40m, compared with 11h 45m via Detroit Metropolitan Wayne County (DTW) and 11h 54m via Montreal Pierre Elliott Trudeau Intl (YUL).

St. Louis is 6 hours behind London (Central Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates starting from around $31 for economy cars. Top options include:
· Hertz
· Budget
· Alamo
· Enterprise Rent-A-Car
· Payless

Round-trip flights from London to St. Louis range from $845 to $1,178, with an average of $958 over the past 12 months. Anything below $845 counts as a good deal.