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Cheap flights from London Heathrow Airport to St. Louis from £305

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — STL
31 Jul — 7 Aug1
1 adult
Wed 31/7
Wed 7/8

The best prices from London Heathrow to Lambert-St Louis are usually found in November or February, booked 15 days in advance, depart on a Wednesday or Monday and return on a Saturday

Cheap flight deals from Heathrow to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 26 July 2024.

Round-trip from

£608

One-way from

£305

Popular in

August

Cheapest in

November
Finnair
  • Finnair
  • 12/9-26/9
  • 2 total stops
  • 26h 20m total
  • London to St. Louis
12/9
  • 12/9
  • 3 total stops
  • 23h 32m total
  • London to St. Louis
High demand for flights, 27% potential price rise
Best time to find cheap flights, 18% potential price drop

What is the cheapest day to fly round-trip from London Heathrow Airport to St. Louis?

Flying to your destination on a Wednesday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to St. Louis. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from London Heathrow Airport to St. Louis?

Travelers have found it’s best to book a flight 47 days in advance to save up to 13% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 47 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to St. Louis 1-2 weeks in advance for as low as £553, or £689 for flights within the next 24 hours.

What is the cheapest month to fly from London Heathrow Airport to St. Louis?

The best pricing can be found in the month of November. Prices to St. Louis from London Heathrow Airport average £634. You can even find prices in November for less than £634, as users have found deals to St. Louis from as low as £429. The month of August appears to be one of the more expensive times to travel to St. Louis from London Heathrow Airport. Flying in the targeted month can save you up to 42%.

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

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to St. Louis in the evening. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the morning.

Cheap Finnair flights from Heathrow to St. Louis

Explore cheap flight options specifically provided by Finnair for the route between Heathrow 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 1,000,913 searches. Data last updated 26 July 2024.
Find some of the cheapest Finnair flights travelling from London to St. Louis. Make sure to double check the flight details before booking.
Thu 12/913:00LHR - STL
1 stop16h 19mFinnair
Thu 26/918:19STL - LHR
1 stop10h 01mFinnair
Deal found 25/7£608
Thu 12/913:00LHR - STL
1 stop16h 19mFinnair
Thu 26/913:29STL - LHR
1 stop12h 01mFinnair
Deal found 24/7£610
Fri 6/912:30LHR - STL
1 stop16h 38mFinnair
Fri 27/916:44STL - LHR
1 stop11h 56mFinnair
Deal found 25/7£627
Fri 6/916:55LHR - STL
1 stop36h 13mFinnair
Fri 27/911:36STL - LHR
1 stop14h 24mFinnair
Deal found 24/7£628
Fri 6/910:30LHR - STL
1 stop18h 49mFinnair
Mon 9/915:28STL - LHR
1 stop11h 32mFinnair
Deal found 24/7£652
Thu 12/913:00LHR - STL
1 stop16h 19mFinnair
Thu 19/915:28STL - LHR
1 stop11h 32mFinnair
Deal found 24/7£654
Sun 8/913:00LHR - STL
1 stop16h 19mFinnair
Wed 18/906:00STL - LHR
1 stop10h 10mFinnair
Deal found 24/7£655
Fri 6/913:00LHR - STL
1 stop16h 19mFinnair
Wed 11/913:19STL - LHR
1 stop13h 41mFinnair
Deal found 24/7£663
Wed 16/1010:05LHR - STL
1 stop11h 53mFinnair
Tue 22/1013:40STL - LHR
1 stop15h 10mFinnair
Deal found 24/7£672

Cheap Lufthansa flights from Heathrow to St. Louis

Explore cheap flight options specifically provided by Lufthansa for the route between Heathrow 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 1,000,913 searches. Data last updated 26 July 2024.
Have a look at some of the cheapest available Lufthansa flights departing from London and landing in St. Louis. Make sure to examine the flight information before completing your reservation.
Sat 5/1018:00LHR - STL
2 stops22h 07mLufthansa
Sun 20/1017:34STL - LHR
1 stop32h 56mLufthansa
Deal found 24/7£728
Wed 18/918:00LHR - STL
2 stops21h 56mLufthansa
Sun 22/917:20STL - LHR
1 stop30h 35mLufthansa
Deal found 24/7£801
Thu 26/918:00LHR - STL
2 stops21h 58mLufthansa
Sun 29/917:34STL - LHR
1 stop30h 21mLufthansa
Deal found 24/7£831
Sat 24/818:00LHR - STL
2 stops22h 10mLufthansa
Sat 7/917:20STL - LHR
1 stop12h 25mLufthansa
Deal found 25/7£858
Sat 24/818:00LHR - STL
2 stops22h 10mLufthansa
Sat 7/917:20STL - LHR
1 stop12h 25mLufthansa
Deal found 24/7£902
Wed 16/1006:30LHR - STL
1 stop13h 00mLufthansa
Wed 23/1012:58STL - LHR
2 stops13h 22mLufthansa
Deal found 24/7£910
Sat 24/814:05LHR - STL
1 stop13h 00mLufthansa
Sat 14/906:34STL - LHR
2 stops17h 46mLufthansa
Deal found 25/7£973
Fri 23/814:05LHR - STL
1 stop13h 00mLufthansa
Fri 30/809:30STL - LHR
2 stops15h 15mLufthansa
Deal found 24/7£1,207
Fri 23/808:30LHR - STL
1 stop12h 21mLufthansa
Fri 30/817:18STL - LHR
2 stops31h 52mLufthansa
Deal found 25/7£1,207

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

Find cheap flight options from Heathrow 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 1,000,913 searches. Prices were last updated on 26 July 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Sat 24/811:00LHR - STL
1 stop15h 59mFinnair
Sat 14/916:15STL - LHR
1 stop14h 30mFinnair
Deal found 25/7£717
Wed 14/806:45LHR - STL
3 stops34h 45mMultiple Airlines
Mon 2/920:35STL - LHR
3 stops35h 20mMultiple Airlines
Deal found 25/7£808
Thu 22/806:40LHR - STL
3 stops34h 50mMultiple Airlines
Thu 29/812:15STL - LHR
3 stops21h 45mMultiple Airlines
Deal found 25/7£856
Sat 24/818:00LHR - STL
2 stops22h 10mLufthansa
Sat 7/911:10STL - LHR
2 stops13h 35mLufthansa
Deal found 25/7£858
Thu 22/810:05LHR - STL
1 stop11h 27mFinnair
Thu 29/809:00STL - LHR
1 stop19h 20mFinnair
Deal found 25/7£865
Fri 23/812:15LHR - STL
1 stop11h 32mFinnair
Tue 27/812:55STL - LHR
1 stop12h 50mFinnair
Deal found 25/7£874
Tue 13/813:00LHR - STL
1 stop26h 50mFinnair
Mon 2/919:02STL - LHR
1 stop30h 38mFinnair
Deal found 25/7£885
Fri 23/810:05LHR - STL
1 stop11h 27mFinnair
Fri 30/812:55STL - LHR
1 stop12h 50mFinnair
Deal found 25/7£888
Sat 24/814:05LHR - STL
1 stop13h 00mLufthansa
Sat 14/906:34STL - LHR
2 stops17h 46mLufthansa
Deal found 25/7£973

Heathrow to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 1,000,913 searches. Data last updated 26 July 2024.
These are some of the most attractive deals on flights from London to St. Louis in 2024. For more flight deals, be sure to check back very soon.
Thu 19/906:00LHR - STL
3 stops32h 02mMultiple Airlines
Mon 23/908:57STL - LHR
3 stops31h 03mMultiple Airlines
Deal found 25/7£508
Thu 5/915:15LHR - STL
1 stop21h 46mMultiple Airlines
Thu 19/909:43STL - LHR
1 stop17h 32mMultiple Airlines
Deal found 25/7£509
Wed 11/913:00LHR - STL
1 stop16h 19mFinnair
Wed 25/915:28STL - LHR
1 stop11h 32mFinnair
Deal found 25/7£568
Thu 19/906:00LHR - STL
3 stops32h 02mMultiple Airlines
Thu 26/908:57STL - LHR
3 stops31h 08mMultiple Airlines
Deal found 25/7£573
Wed 18/910:30LHR - STL
1 stop18h 49mFinnair
Sun 22/918:19STL - LHR
1 stop21h 51mFinnair
Deal found 25/7£574
Wed 11/913:00LHR - STL
1 stop16h 19mFinnair
Wed 25/915:28STL - LHR
1 stop11h 32mFinnair
Deal found 26/7£578
Mon 28/1009:50LHR - STL
1 stop18h 21mFinnair
Mon 4/1118:24STL - LHR
1 stop11h 16mFinnair
Deal found 26/7£582
Thu 5/911:15LHR - STL
1 stop18h 04mFinnair
Thu 26/915:28STL - LHR
1 stop11h 32mFinnair
Deal found 25/7£597
Thu 19/913:00LHR - STL
1 stop16h 19mFinnair
Thu 26/915:28STL - LHR
1 stop11h 32mFinnair
Deal found 25/7£598

Heathrow to St. Louis flights leaving soon

Find last-minute flight options from Heathrow 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 1,000,913 searches. Data last updated 26 July 2024.
Check out these flights departing soon from London to St. Louis. To prevent any unwanted surprises, users should verify their flight info before booking.
Wed 31/708:10LHR - STL
1 stop12h 16mFinnair
Wed 7/812:55STL - LHR
1 stop12h 50mFinnair
Deal found 25/7£1,513
Wed 31/709:55LHR - STL
2 stops16h 08mMultiple Airlines
Wed 7/814:16STL - LHR
1 stop10h 29mMultiple Airlines
Deal found 25/7£1,663
Wed 31/715:10LHR - STL
2 stops34h 51mMultiple Airlines
Wed 7/809:44STL - LHR
2 stops20h 16mMultiple Airlines
Deal found 25/7£1,682
Wed 31/715:20LHR - STL
1 stop12h 17mLufthansa
Tue 13/815:10STL - LHR
1 stop11h 50mLufthansa
Deal found 25/7£2,267

One-way flights to St. Louis from Heathrow

Search for one-way flight options from Heathrow 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 1,000,913 searches. Data last updated 26 July 2024.
Take a look at some of the best available options we've come across on one-way flights from London to St. Louis. Users can also find round-trip London to St. Louis flights by using the search form above.
Thu 12/914:30LHR - STL
3 stops23h 32mMultiple Airlines
Deal found 24/7£305
Mon 9/921:10LHR - STL
3 stops41h 46mMultiple Airlines
Deal found 25/7£477
Sat 31/808:00LHR - STL
3 stops33h 45mMultiple Airlines
Deal found 24/7£505
Tue 20/807:55LHR - STL
3 stops54h 48mMultiple Airlines
Deal found 24/7£512
Fri 13/921:25LHR - STL
2 stops40h 37mMultiple Airlines
Deal found 25/7£547
Tue 20/821:35LHR - STL
2 stops41h 08mMultiple Airlines
Deal found 24/7£558
Mon 19/821:50LHR - STL
3 stops45h 08mMultiple Airlines
Deal found 25/7£564
Wed 11/921:35LHR - STL
2 stops39h 26mMultiple Airlines
Deal found 25/7£575
Fri 13/913:05LHR - STL
3 stops28h 40mMultiple Airlines
Deal found 25/7£585

Find flights from Heathrow to St. Louis within your budget

Customise your flight search to find flights from Heathrow 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 1,000,913 searches. Data last updated 26 July 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£608 - £920

Route

Depart

Return

Price

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 12/9

1 stop16h 19m

Lambert-St Louis

Thu 26/9

1 stop10h 01m

£608

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Thu 5/9

3 stops24h 52m

Lambert-St Louis

Thu 19/9

3 stops20h 58m

£618

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sat 5/10

2 stops22h 07m

Lambert-St Louis

Sun 20/10

1 stop32h 56m

£728

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 11/9

2 stops16h 24m

Lambert-St Louis

Wed 25/9

1 stop18h 26m

£791

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 11/9

1 stop17h 35m

Lambert-St Louis

Tue 24/9

1 stop14h 40m

£804

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sun 1/9

2 stops27h 32m

Lambert-St Louis

Mon 23/9

1 stop10h 46m

£816

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Sun 1/9

2 stops18h 50m

Lambert-St Louis

Mon 23/9

2 stops16h 04m

£842

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Fri 6/9

2 stops16h 40m

Lambert-St Louis

Fri 27/9

2 stops21h 15m

£907

London HeathrowLambert-St Louis

LHR - STL

LHRSTL

London Heathrow

Wed 16/10

2 stops13h 58m

Lambert-St Louis

Tue 22/10

2 stops13h 11m

£920

Flights are sorted by cheapest first

Deals found on 25/7

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

Use this chart to determine the optimal time to book a return flight from Heathrow to St. Louis. Price data was last updated on 23 July 2024.
To ensure you get the cheapest price possible for a flight from London Heathrow Airport to St. Louis, you should look to book at least 15 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.
Search Deals

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

Use this chart to determine the cheapest time to fly return from Heathrow to St. Louis. Price data was last updated on 21 July 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London Heathrow Airport to St. Louis flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Heathrow 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.

Temperature and rainfall in St. Louis by month

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

STL

Temperature

0 - 27 °C

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 26 July 2024.
To help decide which airline to fly from London to St. Louis, see what other customers have to say about Finnair, Lufthansa and Virgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
9,630 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

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
9,630 reviews
8.0
Very Good
9,630 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

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
1,417 reviews
8.0
Very Good
9,630 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

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
1,332 reviews
8.0
Very Good
9,630 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

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
933 reviews
8.0
Very Good
9,630 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

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
705 reviews
8.0
Very Good
9,630 reviews

Comfort

7.9

Overall

8.0

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

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 Heathrow 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 Heathrow?

    For a flight from London Heathrow to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 0 inbound flights from London Heathrow per day. 9 airlines have flights to Lambert-St Louis from London Heathrow on a regular basis.

  • Can I find flights from London Heathrow Airport to St. Louis for under £700 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to St. Louis for under £700. The cheapest flight booked recently is on Finnair for just £608, but on average you can expect to pay £658.

  • Are there last-minute flights available from London Heathrow Airport to St. Louis for under £1,600?

    There are currently 4+ open flights from London Heathrow Airport to St. Louis within the next 7 days for less than £1,600.

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

    Cheapflights users have booked flights from London Heathrow Airport to St. Louis round-trip from £608. Other airlines that can offer you cheap pricing are Lufthansa, from £728, and Virgin Atlantic, from £791. Finnair is priced at 2% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to St. Louis one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as £659. Users have also found prices from £803 and £819 on Finnair and Aer Lingus, respectively.

  • What does LHR to STL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a London Heathrow Airport to Lambert-St Louis Airport flight would often be abbreviated as a LHR to STL flight.

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

    The amount of baggage you can bring on your Heathrow 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 Heathrow to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow 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 Heathrow to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow to St. Louis that allow pets onboard?

    Many airlines flying from Heathrow 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 Heathrow to St. Louis?

    Yes, you can often find last-minute deals on Heathrow 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 Heathrow Airport to St. Louis flight deals updated?

    The London Heathrow Airport to St. Louis flight deals you see on this page were last updated on 26/7.

  • What are the most popular airlines that fly from London Heathrow Airport to St. Louis?

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

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to St. Louis (average of £658). Flying from London Heathrow Airport to St. Louis in August is currently the most expensive (average of £886). 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

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Top 9 airlines flying from Heathrow to St. Louis

Discover the top 9 airlines that operate flights from Heathrow to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 1,000,913 searches. Data last updated 26 July 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£457Average£763FlexibilityNo cancel feeOn-time69%
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Air CanadaCheapest£460Average£800FlexibilityNo cancel feeOn-time67%
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Virgin AtlanticCheapest£463Average£804FlexibilityNo cancel feeOn-time72%
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FinnairCheapest£466Average£582FlexibilityNo cancel feeOn-time76%
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LufthansaCheapest£520Average£821FlexibilityNo cancel feeOn-time76%
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IberiaCheapest£550Average£735FlexibilityNo cancel feeOn-time77%
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American AirlinesCheapest£613Average£936FlexibilityNo cancel feeOn-time71%
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British AirwaysCheapest£623Average£817FlexibilityNo cancel feeOn-time70%
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KLMCheapest£753Average£908FlexibilityNo cancel feeOn-time75%
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Search flights from Heathrow to St. Louis by cabin class

Find flights from Heathrow to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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How does Cheapflights help users find flights from Heathrow to St. Louis?

Cheapflights makes it easy to find Heathrow to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to St. Louis?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Heathrow.

Can Cheapflights find flights from Heathrow to St. Louis with no change fees?

Certainly. Search results for flights to St. Louis from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Heathrow to St. Louis become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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