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

Virgin Atlantic, at £640, was found to be the cheapest airline from St. Louis to London.Alternate airlines flying return to your destination include British Airways and Iberia. Users have found that Virgin Atlantic is 12% cheaper than the other options available to this destination.

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

The cheapet airlines for a one-way flight from St. Louis to London are Scandinavian Airlines (£296), Air Canada (£364), and British Airways (£364).

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

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

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

While some choose either Lambert-St Louis - London Gatwick or Lambert-St Louis - London City, Lambert-St Louis - London Heathrow is the most popular route from St. Louis to London.

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

American Airlines, British Airways and KLM are the most popular airlines when flying from St. Louis to London.

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

Wednesday flights are generally found to be more expensive for flights from St. Louis to London. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.

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

To save up to 17% on this flight, we recommend booking at least 32 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from St. Louis to London from £667 1-2 weeks out and tickets from £667 for flights departing within the next 72 hours.

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

February is one of the best times of the year to fly to London from St. Louis. Prices for February average £731 per person but you can even find prices for as low as £487. The most expensive prices can be found in the month of June. Opting for a February flight can save you 51% on your journey compared to booking in June

What airport do you fly from for flights from St. Louis to London?

Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to London. On average, Lambert-St Louis has 0 outbound flights to London per day from 5 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

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

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

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

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

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

£234+ Flights from St. Louis to London

The best prices from Lambert-St Louis to London are usually found in February or April, booked 69 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from St. Louis to London

Round-trip from	£640
One-way from	£234
Popular in	June
Cheapest in	February
Average price	£928

Virgin Atlantic
31/1-7/2
3 total stops
29h 04m total
St. Louis to London

Search Deals

18/1
3 total stops
59h 41m total
St. Louis to London

Search Deals

High demand for flights, 20% potential price rise

Search Deals

Best time to find cheap flights, 5% potential price drop

Search Deals

Average for round-trip flights in December 2024

Search Deals

Find flight deals from St. Louis to London

Cheapest flights from St. Louis to London
Explore the most affordable flight options available from St. Louis to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Tue 31/1211:10STL - LHR

1 stop14h 20mUnited Airlines

Mon 8/909:30LHR - STL

3 stops35h 51mUnited Airlines

Deal found 17/12£768

Tue 31/1206:00STL - LHR

1 stop23h 05mMultiple Airlines

Tue 7/118:00LHR - STL

1 stop27h 06mMultiple Airlines

Deal found 17/12£863

Tue 31/1215:50STL - LHR

2 stops33h 20mAir Canada

Tue 7/115:00LHR - STL

2 stops30h 06mAir Canada

Deal found 17/12£919

Tue 31/1213:05STL - LHR

1 stop11h 35mLufthansa

Tue 7/119:30LHR - STL

1 stop24h 25mLufthansa

Deal found 18/12£997

Tue 31/1211:36STL - LCY

2 stops24h 54mBritish Airways

Mon 23/619:00LCY - STL

2 stops31h 12mBritish Airways

Deal found 17/12£1,066

Tue 17/1206:00STL - LGW

1 stop19h 30mMultiple Airlines

Tue 24/1212:00LGW - STL

2 stops26h 13mMultiple Airlines

Deal found 16/12£1,108

Tue 31/1212:15STL - LGW

2 stops16h 00mIberia

Mon 23/610:50LGW - STL

2 stops28h 17mIberia

Deal found 17/12£1,158

Thu 26/1206:29STL - LHR

1 stop18h 21mDelta

Fri 3/112:20LHR - STL

1 stop15h 15mDelta

Deal found 17/12£1,428

Tue 17/1217:40STL - LGW

2 stops21h 50mTurkish Airlines

Tue 24/1210:15LGW - STL

2 stops35h 32mTurkish Airlines

Deal found 16/12£1,550

Sun 22/1215:50STL - LCY

2 stops15h 00mMultiple Airlines

Tue 31/1209:15LCY - STL

2 stops35h 51mMultiple Airlines

Deal found 17/12£1,701

Thu 26/1219:07STL - LCY

2 stops15h 28mDelta

Thu 2/109:20LCY - STL

2 stops18h 46mDelta

Deal found 16/12£1,756

Mon 23/1212:55STL - LHR

2 stops23h 35mScandinavian Airlines

Fri 3/106:40LHR - STL

3 stops21h 02mScandinavian Airlines

Deal found 18/12£1,818

Best flights from St. Louis to London
Discover carefully curated flight deals from St. Louis to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 December 2024.

Fri 31/111:50STL - LHR

1 stop13h 00mVirgin Atlantic

Fri 7/211:45LHR - STL

2 stops16h 04mVirgin Atlantic

Deal found 18/12£640

Mon 5/509:40STL - LHR

1 stop14h 55mMultiple Airlines

Thu 15/510:30LHR - STL

2 stops15h 31mMultiple Airlines

Deal found 18/12£640

Wed 19/314:13STL - LCY

2 stops18h 32mBritish Airways

Wed 26/308:40LCY - STL

2 stops17h 08mBritish Airways

Deal found 18/12£641

Mon 5/518:23STL - LHR

1 stop9h 57mIberia

Thu 15/512:00LHR - STL

1 stop16h 24mIberia

Deal found 18/12£642

Fri 28/212:52STL - LHR

2 stops21h 08mScandinavian Airlines

Sun 2/319:30LHR - STL

2 stops34h 07mScandinavian Airlines

Deal found 18/12£648

Tue 6/508:00STL - LHR

2 stops16h 30mUnited Airlines

Wed 14/506:30LHR - STL

1 stop13h 00mUnited Airlines

Deal found 18/12£650

Tue 6/509:40STL - LHR

2 stops14h 50mAir Canada

Wed 14/506:50LHR - STL

2 stops14h 26mAir Canada

Deal found 18/12£657

Fri 14/307:20STL - LHR

1 stop18h 00mDelta

Fri 21/306:30LHR - STL

2 stops15h 26mDelta

Deal found 17/12£659

Wed 19/215:45STL - LHR

1 stop15h 00mLufthansa

Mon 24/219:15LHR - STL

2 stops48h 40mLufthansa

Deal found 18/12£685

Wed 19/209:29STL - LGW

2 stops16h 01mAmerican Airlines

Mon 24/211:20LGW - STL

2 stops18h 36mAmerican Airlines

Deal found 18/12£811

Thu 20/315:50STL - LHR

1 stop11h 05mKLM

Mon 24/312:30LHR - STL

1 stop16h 08mKLM

Deal found 17/12£872

Thu 30/118:00STL - LHR

2 stops14h 25mAer Lingus

Mon 3/208:50LHR - STL

2 stops19h 19mAer Lingus

Deal found 18/12£875

Last-minute flights from St. Louis to London
Discover last-minute flight deals from St. Louis to London. Data last updated 19 December 2024 and is based on user searches.

Mon 23/1212:55STL - LHR

2 stops23h 35mScandinavian Airlines

Fri 3/106:40LHR - STL

3 stops21h 02mScandinavian Airlines

Deal found 18/12£1,818

Wed 25/1215:50STL - LHR

1 stop10h 40mMultiple Airlines

Wed 1/110:30LHR - STL

2 stops34h 36mMultiple Airlines

Deal found 18/12£1,134

Wed 25/1206:00STL - LHR

1 stop22h 50mUnited Airlines

Wed 1/118:00LHR - STL

1 stop27h 06mUnited Airlines

Deal found 18/12£1,140

Wed 25/1217:30STL - LGW

2 stops40h 30mTurkish Airlines

Sun 29/1205:50LGW - STL

2 stops39h 57mTurkish Airlines

Deal found 18/12£1,544

Wed 25/1215:50STL - LTN

2 stops17h 05mMultiple Airlines

Wed 1/108:45LTN - STL

3 stops32h 02mMultiple Airlines

Deal found 18/12£1,898

Thu 26/1215:50STL - LHR

1 stop14h 00mAir Canada

Thu 2/111:10LHR - STL

1 stop33h 56mAir Canada

Deal found 17/12£1,342

Thu 26/1206:29STL - LHR

1 stop18h 21mDelta

Fri 3/112:20LHR - STL

1 stop15h 15mDelta

Deal found 17/12£1,428

Thu 26/1219:07STL - LCY

2 stops15h 28mDelta

Thu 2/109:20LCY - STL

2 stops18h 46mDelta

Deal found 16/12£1,756

Thu 26/1215:50STL - STN

3 stops25h 30mMultiple Airlines

Thu 2/119:35STN - STL

2 stops24h 20mMultiple Airlines

Deal found 16/12£2,102

Thu 26/1215:50STL - LCY

2 stops20h 50mMultiple Airlines

Thu 2/118:15LCY - STL

1 stop25h 40mMultiple Airlines

Deal found 16/12£2,447

Thu 26/1217:30STL - LHR

2 stops38h 45mTurkish Airlines

Sat 4/106:35LHR - STL

2 stops39h 12mTurkish Airlines

Deal found 17/12£3,231

Sat 28/1216:29STL - LCY

2 stops38h 11mAer Lingus

Tue 31/1209:10LCY - STL

2 stops17h 49mAer Lingus

Deal found 17/12£2,371

One-way flights from St. Louis to London
Search for one-way flight options from St. Louis to London. Find affordable one-way fares based on user searches. Data last updated 19 December 2024.

Sat 18/119:09STL - LHR

3 stops59h 41mMultiple Airlines

Deal found 18/12£234

Sun 2/208:22STL - LTN

3 stops42h 13mMultiple Airlines

Deal found 17/12£238

Sun 2/208:22STL - STN

3 stops41h 28mMultiple Airlines

Deal found 17/12£238

Sat 18/119:09STL - LGW

2 stops33h 26mMultiple Airlines

Deal found 18/12£270

Wed 15/114:00STL - LHR

2 stops20h 00mScandinavian Airlines

Deal found 18/12£296

Sun 2/208:22STL - LCY

3 stops31h 18mMultiple Airlines

Deal found 17/12£314

Tue 25/310:03STL - LHR

2 stops16h 07mAir Canada

Deal found 18/12£364

Tue 25/316:26STL - LHR

1 stop10h 49mBritish Airways

Deal found 18/12£364

Tue 25/314:54STL - LGW

2 stops14h 21mIberia

Deal found 18/12£375

Sat 29/317:33STL - LHR

1 stop30h 47mUnited Airlines

Deal found 18/12£376

Wed 26/314:13STL - LGW

2 stops23h 37mBritish Airways

Deal found 18/12£391

Wed 15/114:10STL - LCY

2 stops20h 15mBritish Airways

Deal found 18/12£396

Find flights from St. Louis to London within your budget

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Fri 31/1

11:50-06:50

1 stop13h 00m

London Heathrow

Fri 7/2

11:45-21:49

2 stops16h 04m

£640

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 5/5

09:40-06:35

1 stop14h 55m

London Heathrow

Thu 15/5

10:30-20:01

2 stops15h 31m

£640

St. LouisLondon

STL - LCY

STLLCY

Lambert-St Louis

Wed 19/3

14:13-13:45

2 stops18h 32m

London City

Wed 26/3

08:40-20:48

2 stops17h 08m

£641

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Mon 5/5

18:23-10:20

1 stop9h 57m

London Heathrow

Thu 15/5

12:00-22:24

1 stop16h 24m

£642

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Fri 28/2

12:52-16:00

2 stops21h 08m

London Heathrow

Sun 2/3

19:30-23:37

2 stops34h 07m

£648

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 6/5

08:00-06:30

2 stops16h 30m

London Heathrow

Wed 14/5

06:30-13:30

1 stop13h 00m

£650

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Tue 18/2

14:10-18:50

2 stops22h 40m

London Gatwick

Mon 24/2

10:55-22:02

2 stops41h 07m

£651

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Tue 6/5

09:40-06:30

2 stops14h 50m

London Heathrow

Wed 14/5

06:50-15:16

2 stops14h 26m

£657

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Fri 14/3

07:20-06:20

1 stop18h 00m

London Heathrow

Fri 21/3

06:30-16:56

2 stops15h 26m

£659

St. LouisLondon

STL - LHR

STLLHR

Lambert-St Louis

Wed 16/4

13:08-06:50

1 stop11h 42m

London Heathrow

Sat 26/4

14:25-21:56

1 stop13h 31m

£664

Flights are sorted by cheapest return flights first.

Deals found on 18/12

Showing 1-10 of 50 results

...

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

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

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

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

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to London (average of £112). Flying from St. Louis to London in July is currently the most expensive (average of £160). 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 STL to LON?

It’s optimal to fly from St. Louis to London in the morning. By choosing this option you can save up to 45% on the cost of your flight, compared to a flight in the evening.

Rainfall in London by month

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

If weather is an important factor for your trip to London, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Read through reviews of airlines operating flights from St. Louis to London, such as Aer Lingus, Scandinavian Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

8,604 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,349 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Austrian Airlines

7.6

Good

788 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.5

Good

668 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France

7.4

Good

1,505 reviews

Delta

8.0

Very Good

8,604 reviews

Check prices

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from St. Louis to London?
Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to London. On average, Lambert-St Louis has 0 outbound flights to London per day from 5 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.
What are the cheapest airlines flying from St. Louis to London round-trip?
Virgin Atlantic, at £640, was found to be the cheapest airline from St. Louis to London.Alternate airlines flying return to your destination include British Airways and Iberia. Users have found that Virgin Atlantic is 12% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from St. Louis to London one-way?
The cheapet airlines for a one-way flight from St. Louis to London are Scandinavian Airlines (£296), Air Canada (£364), and British Airways (£364).
What are the most popular routes from St. Louis to London?
While some choose either Lambert-St Louis - London Gatwick or Lambert-St Louis - London City, Lambert-St Louis - London Heathrow is the most popular route from St. Louis to London.
Can I find deals for flights from St. Louis to London that include hotel bookings?
Yes. In addition to deals on St. Louis to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from St. Louis to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to London.
Can I find deals for business class flights from St. Louis to London?
Yes. Cheapflights offers flight deals from St. Louis to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to London?
Currently, January is the cheapest month in which you can book a flight from St. Louis to London (average of £112). Flying from St. Louis to London in July is currently the most expensive (average of £160). 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

Top 5 airlines flying from St. Louis to London

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£509	Average£845	FlexibilityNo cancel fee	On-time75%	Search KLM flights
British Airways	Cheapest£525	Average£881	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£537	Average£557	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
American Airlines	Cheapest£544	Average£1,225	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Virgin Atlantic	Cheapest£547	Average£878	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from St. Louis to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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

Yes! Start tracking prices for St. Louis to London flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from St. Louis to London from £234

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 18/1. Fares are subject to change and may not be available on all flights or dates of travel.

The best prices from Lambert-St Louis to London are usually found in February or April, booked 69 days in advance, depart on a Wednesday or Saturday and return on a Wednesday

Cheap flight deals from St. Louis to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to London

Cheapest flights from St. Louis to LondonExplore the most affordable flight options available from St. Louis to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Explore the most affordable flight options available from St. Louis to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.

Find flights from St. Louis to London within your budget

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

Have a flexible travel schedule? Discover the best time to fly to London from St. Louis with our price prediction graph.

Travel insights for flights from St. Louis to London

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

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

Use this chart to determine the optimal time to book a return flight from St. Louis to London. Price data was last updated on 13 December 2024.

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

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

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

Rainfall in London by month

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

Temperature in London by month

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

Reviews of airlines servicing London

Read through reviews of airlines operating flights from St. Louis to London, such as Aer Lingus, Scandinavian Airlines and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to London. 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 from for flights from St. Louis to London?

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

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

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

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

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

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

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

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.

Alternative routes for St. Louis to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from St. Louis to London

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

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

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

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

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Cheapest flights from St. Louis to London
Explore the most affordable flight options available from St. Louis to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 December 2024.