Find flights
When to book
Airlines
FAQs

Cheap flights from London to St. Louis from £267

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
LON — STL
24 Jul — 31 Jul1
1 adult
Wed 24/7
Wed 31/7

The best prices from London to Lambert-St Louis are usually found in November or February, booked 46 days in advance, depart on a Monday or Wednesday and return on a Saturday

Cheap flight deals from London to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 July 2024.

Round-trip from

£449

One-way from

£267

Popular in

August

Cheapest in

November
4/9-15/9
  • 4/9-15/9
  • 2 total stops
  • 43h 05m total
  • London to St. Louis
25/8
  • 25/8
  • 1 total stop
  • 23h 22m total
  • London to St. Louis
High demand for flights, 28% potential price rise
Best time to find cheap flights, 19% potential price drop

Cheap Iberia flights from London to St. Louis

Explore cheap flight options specifically provided by Iberia for the route between London and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 996,417 searches. Data last updated 19 July 2024.
Take a look at some of the lowest-priced Iberia flights heading from London to St. Louis. Make sure to double check the flight details before booking.
Tue 14/119:35LGW - STL
2 stops31h 56mIberia
Wed 22/110:30STL - LGW
2 stops26h 20mIberia
Deal found 17/7£824
Sat 21/920:40LGW - STL
2 stops26h 46mIberia
Sat 5/1011:20STL - LGW
2 stops16h 50mIberia
Deal found 18/7£963

Cheap Lufthansa flights from London to St. Louis

Explore cheap flight options specifically provided by Lufthansa for the route between London and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 996,417 searches. Data last updated 19 July 2024.
Some of the lowest-priced Lufthansa flights we've found at this time heading from London to St. Louis. Check back soon if you're not seeing flights that suit your needs.
Sat 21/918:00LHR - STL
2 stops22h 07mLufthansa
Sat 28/917:34STL - LHR
2 stops31h 11mLufthansa
Deal found 17/7£651
Sat 21/915:50LHR - STL
2 stops26h 32mLufthansa
Sat 28/910:00STL - LHR
2 stops18h 40mLufthansa
Deal found 18/7£753
Sat 21/918:00LHR - STL
2 stops21h 56mLufthansa
Sat 28/908:25STL - LHR
1 stop20h 15mLufthansa
Deal found 18/7£765
Mon 16/909:30LHR - STL
1 stop17h 35mLufthansa
Mon 23/909:30STL - LHR
2 stops14h 50mLufthansa
Deal found 18/7£796
Thu 19/914:05LHR - STL
1 stop13h 00mLufthansa
Thu 26/911:09STL - LHR
2 stops13h 36mLufthansa
Deal found 17/7£823
Thu 19/914:05LHR - STL
1 stop13h 00mLufthansa
Thu 26/911:09STL - LHR
2 stops14h 06mLufthansa
Deal found 18/7£826
Wed 4/906:30LHR - STL
1 stop13h 00mLufthansa
Mon 16/911:10STL - LHR
2 stops14h 05mLufthansa
Deal found 18/7£909
Wed 4/906:30LHR - STL
1 stop13h 00mLufthansa
Sun 15/917:20STL - LHR
2 stops31h 25mLufthansa
Deal found 18/7£913
Thu 3/1014:05LHR - STL
1 stop13h 00mLufthansa
Fri 8/1111:20STL - LHR
2 stops13h 00mLufthansa
Deal found 18/7£916

Cheap London to St. Louis flights in July & August 2024

Find cheap flight options from London to St. Louis specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 996,417 searches. Prices were last updated on 19 July 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. Check back in a little while for more flight options.
Sun 25/814:00LGW - STL
1 stop23h 22mMultiple Airlines
Sun 8/908:57STL - LGW
1 stop19h 03mMultiple Airlines
Deal found 18/7£491
Mon 26/808:10LHR - STL
1 stop11h 33mFinnair
Mon 9/909:19STL - LHR
1 stop15h 36mFinnair
Deal found 18/7£663
Mon 26/813:05LHR - STL
1 stop15h 43mFinnair
Wed 28/506:40STL - LHR
1 stop19h 05mFinnair
Deal found 17/7£666
Fri 23/814:00LGW - STL
1 stop23h 22mMultiple Airlines
Thu 29/817:18STL - LGW
2 stops34h 32mMultiple Airlines
Deal found 18/7£710
Sat 24/811:00LHR - STL
1 stop15h 59mFinnair
Sat 14/917:52STL - LHR
1 stop12h 53mFinnair
Deal found 17/7£720
Mon 26/816:35LHR - STL
2 stops20h 47mMultiple Airlines
Mon 9/908:57STL - LHR
2 stops17h 58mMultiple Airlines
Deal found 18/7£721
Sat 24/810:05LHR - STL
1 stop11h 28mFinnair
Sat 14/912:55STL - LHR
1 stop12h 00mFinnair
Deal found 18/7£728
Mon 26/816:35LHR - STL
2 stops20h 47mMultiple Airlines
Mon 9/908:57STL - LHR
2 stops17h 58mMultiple Airlines
Deal found 18/7£729
Thu 15/814:00LGW - STL
1 stop23h 22mMultiple Airlines
Mon 19/808:12STL - LGW
1 stop19h 48mMultiple Airlines
Deal found 18/7£741

London to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between London and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 996,417 searches. Data last updated 19 July 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. Check back in a little while for more flight options.
Thu 12/909:55LHR - STL
3 stops31h 50mMultiple Airlines
Thu 19/912:15STL - LHR
3 stops25h 15mMultiple Airlines
Deal found 18/7£556
Thu 5/913:10LHR - STL
3 stops24h 52mMultiple Airlines
Thu 12/908:57STL - LHR
3 stops20h 58mMultiple Airlines
Deal found 18/7£570
Tue 29/1009:55LHR - STL
1 stop15h 12mFinnair
Tue 5/1116:55STL - LHR
1 stop13h 25mFinnair
Deal found 17/7£572
Tue 17/911:15LHR - STL
1 stop18h 04mFinnair
Tue 24/909:05STL - LHR
1 stop16h 40mFinnair
Deal found 18/7£575
Tue 29/1011:45LHR - STL
1 stop16h 26mFinnair
Tue 5/1110:04STL - LHR
1 stop16h 11mFinnair
Deal found 18/7£576
Mon 23/911:15LHR - STL
1 stop18h 04mFinnair
Sun 29/918:19STL - LHR
1 stop21h 51mFinnair
Deal found 17/7£579
Mon 28/1011:45LHR - STL
1 stop16h 26mFinnair
Mon 4/1114:43STL - LHR
1 stop12h 32mFinnair
Deal found 17/7£585
Sat 7/918:35LHR - STL
2 stops24h 51mKLM
Mon 23/911:26STL - LHR
1 stop13h 19mKLM
Deal found 17/7£593
Wed 30/1012:35LGW - STL
2 stops23h 32mMultiple Airlines
Fri 8/1112:15STL - LGW
3 stops16h 30mMultiple Airlines
Deal found 18/7£602

London to St. Louis flights leaving soon

Find last-minute flight options from London to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 996,417 searches. Data last updated 19 July 2024.
Check out these flights departing soon from London to St. Louis. Users should examine the flight details to ensure there are no surprises.
Sun 28/721:10LHR - STL
3 stops29h 55mMultiple Airlines
Sun 25/812:15STL - LHR
3 stops18h 30mMultiple Airlines
Deal found 16/7£1,050
Sun 28/720:10LHR - STL
3 stops30h 55mMultiple Airlines
Sun 25/811:30STL - LHR
1 stop13h 00mMultiple Airlines
Deal found 16/7£1,077
Wed 24/713:45LHR - STL
3 stops33h 44mMultiple Airlines
Sat 17/812:15STL - LHR
3 stops21h 20mMultiple Airlines
Deal found 18/7£1,138
Wed 24/713:45LHR - STL
3 stops33h 44mMultiple Airlines
Sat 17/816:05STL - LHR
1 stop10h 30mMultiple Airlines
Deal found 18/7£1,175
Wed 24/714:10LHR - STL
1 stop15h 11mFinnair
Wed 31/715:18STL - LHR
1 stop14h 52mFinnair
Deal found 18/7£1,258
Sun 28/716:40LGW - STL
3 stops29h 29mMultiple Airlines
Sun 25/808:12STL - LGW
1 stop19h 48mMultiple Airlines
Deal found 16/7£1,262
Sun 28/716:40LGW - STL
3 stops29h 29mMultiple Airlines
Sun 25/807:30STL - LGW
2 stops20h 30mMultiple Airlines
Deal found 16/7£1,344
Wed 24/709:25LCY - STL
3 stops32h 05mMultiple Airlines
Wed 31/712:15STL - LCY
3 stops23h 10mMultiple Airlines
Deal found 18/7£1,377
Thu 25/712:30LHR - STL
1 stop14h 19mFinnair
Wed 14/812:48STL - LHR
1 stop13h 07mFinnair
Deal found 18/7£1,408

One-way flights to St. Louis from London

Search for one-way flight options from London to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 996,417 searches. Data last updated 19 July 2024.
Users in need of a one-way flight from London to St. Louis can choose from these deals. Those seeking round-trip flights from London to St. Louis should utilise the search form at the top of the page.
Sun 25/814:00LGW - STL
1 stop23h 22mMultiple Airlines
Deal found 16/7£267
Sun 15/914:00LGW - STL
1 stop24h 02mMultiple Airlines
Deal found 17/7£271
Thu 19/914:00LGW - STL
1 stop24h 02mMultiple Airlines
Deal found 18/7£287
Thu 22/814:00LGW - STL
1 stop23h 22mMultiple Airlines
Deal found 17/7£288
Thu 19/913:05LGW - STL
2 stops24h 57mMultiple Airlines
Deal found 18/7£300
Wed 25/914:00LGW - STL
1 stop24h 02mMultiple Airlines
Deal found 18/7£305
Tue 29/1012:00LGW - STL
1 stop30h 04mMultiple Airlines
Deal found 18/7£318
Sun 22/914:00LGW - STL
1 stop24h 02mMultiple Airlines
Deal found 18/7£323
Wed 25/913:05LGW - STL
2 stops33h 20mMultiple Airlines
Deal found 18/7£334

Find flights from London to St. Louis within your budget

Customise your flight search to find flights from London to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 996,417 searches. Data last updated 19 July 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£449 - £827

Route

Depart

Return

Price

London GatwickLambert-St Louis

LGW - STL

LGWSTL

London Gatwick

Wed 4/9

1 stop24h 02m

Lambert-St Louis

Sun 15/9

1 stop19h 03m

£449

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 19/9

1 stop18h 04m

Lambert-St Louis

Thu 26/9

1 stop10h 10m

£602

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sat 21/9

2 stops22h 07m

Lambert-St Louis

Sat 28/9

2 stops31h 11m

£651

London GatwickLambert-St Louis

LGW - STL

LGWSTL

London Gatwick

Mon 23/9

1 stop14h 39m

Lambert-St Louis

Mon 7/10

1 stop15h 01m

£796

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 18/9

2 stops33h 26m

Lambert-St Louis

Wed 25/9

1 stop13h 00m

£799

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Mon 16/9

2 stops16h 16m

Lambert-St Louis

Mon 23/9

2 stops13h 35m

£800

London GatwickLambert-St Louis

LGW - STL

LGWSTL

London Gatwick

Tue 14/1

2 stops29h 47m

Lambert-St Louis

Wed 22/1

2 stops17h 18m

£804

London GatwickLambert-St Louis

LGW - STL

LGWSTL

London Gatwick

Tue 14/1

2 stops31h 56m

Lambert-St Louis

Wed 22/1

2 stops26h 20m

£824

London CityLambert-St Louis

LCY - STL

LCYSTL

London City

Mon 16/9

2 stops29h 54m

Lambert-St Louis

Mon 23/9

2 stops13h 49m

£827

Flights are sorted by cheapest first

Deals found on 18/7

Best time to book a flight from London to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from London to St. Louis

Get recent, data-driven insights about flights from London to St. Louis including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London to St. Louis?

Use this chart to determine the optimal time to book a return flight from London to St. Louis. Price data was last updated on 12 July 2024.

To ensure you get the cheapest price possible for a flight from London to St. Louis, you should look to book at least 46 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London to St. Louis?

Currently, November is the cheapest month in which you can book a flight from London to St. Louis (average of £423). Flying from London to St. Louis in August is currently the most expensive (average of £559). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to STL?

Find hourly flight availability from London to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 July 2024.

It’s typically best to fly out from London to St. Louis in the evening. Doing so could potentially save you 28% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from London to St. Louis?

Use this chart to determine the cheapest time to fly return from London to St. Louis. Price data was last updated on 11 February 2024.

Travellers seeking maximum savings on their London to St. Louis flight should consider departing on Wednesday at midday when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 inches per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 19 July 2024.
Get a feel of what it's like to fly with Iberia, Lufthansa and United Airlines from London to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
9,735 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

8.0
Very Good
9,735 reviews
8.0
Very Good
9,735 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.9
Good
1,427 reviews
8.0
Very Good
9,735 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.7
Good
1,334 reviews
8.0
Very Good
9,735 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.7
Good
940 reviews
8.0
Very Good
9,735 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.6
Good
708 reviews
8.0
Very Good
9,735 reviews

Comfort

7.9

Boarding

8.2

Crew

8.6

Entertainment

8.0

Food

7.4

Overall

8.0

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Related info for your journey

Find useful and relevant information for your journey from London to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to St. Louis from London?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from London to St. Louis. You should not have trouble finding flights to Lambert-St Louis from London; the airport handles an average of 0 inbound flights from London per day. You should also have plenty of airline options to choose from since 9 airlines have flights to the St. Louis airport from London. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

  • Can I find flights from London to St. Louis for under £500 on Cheapflights?

    Yes, there are multiple flights from London to St. Louis for under £500. The cheapest flight booked recently is on Multiple Airlines for just £449, but on average you can expect to pay £555.

  • Are there last-minute flights available from London to St. Louis for under £1,100?

    There are currently 20+ open flights from London to St. Louis within the next 7 days for less than £1,100.

  • What are the cheapest airlines flying from London to St. Louis round-trip?

    Our cheapest airline available from London to St. Louis is Finnair. Our recent data shows that you can find tickets from as low as £602 on this airline. An additional option worth looking into is Lufthansa, starting at £651. These flights start at 3% lower than the current average price 3 months from now.

  • What are the most popular routes from London to St. Louis?

  • What does LHR to STL mean?

    London Heathrow Airport is LHR and Lambert-St Louis Airport is STL. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from London to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your London to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from London to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter London to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from London to St. Louis that include hotel bookings?

    Yes. In addition to deals on London to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to St. Louis.

  • Can I find deals for business class flights from London to St. Louis?

    Yes. Cheapflights offers flight deals from London to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from London to St. Louis that allow pets onboard?

    Many airlines flying from London to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from London to St. Louis?

    Yes, you can often find last-minute deals on London to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London to St. Louis flight deals updated?

    The London to St. Louis flight deals you see on this page were last updated on 18/7.

  • What is the cheapest month to book a flight from London to St. Louis?

    Currently, November is the cheapest month in which you can book a flight from London to St. Louis (average of £423). Flying from London to St. Louis in August is currently the most expensive (average of £559). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from London to St. Louis on these airlines
Choose from the following airlines for your flight from London to St. Louis. Flights are based on user searches made on Cheapflights and were last updated on 19 July 2024.