What is the cheapest month to fly to St. Charles?

February is currently the cheapest month to fly to St. Charles . At this moment in time December is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

Can I find cheaper flights to St. Charles if I am willing to have stopovers?

Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to St. Charles on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to St. Charles?

Based on reviews from Cheapflights users, Air Canada is rated the highest out of the airlines that fly to St. Charles.

How much is a return flight to St. Charles?

A return flight to St. Charles will typically cost around £248, however they can be found for as little as £218.

Where does the fastest flight to St. Charles depart from?

For those looking to save time traveling to St. Charles, Edinburgh Turnhouse offers the quickest one-way flight (12 hours 16 minutes).

Does Lambert-St Louis have car hire?

Yes. Those touching down at Lambert-St Louis can take advantage of the car hire services offered upon their arrival.

Are there hotels close to Lambert-St Louis?

Yes. Lambert-St Louis has hotels nearby for those requiring accommodations. Hampton Inn St. Louis-Airport is the closest property to Lambert-St Louis (0.0 mi away from Lambert-St Louis).

£297+ Flights to St. Charles

Flights to St. Charles in 2025

Return from	£589
One-way from	£297
Popular in	December
Cheapest in	January
Average price	£603

6/2-24/2
2 total stops
44h 58m total
London to St. Louis

Search Deals

9/4
3 total stops
41h 46m total
London to St. Charles

Search Deals

High demand for flights, 6% potential price rise

Search Deals

Best time to find cheap flights, 4% potential price drop

Search Deals

Average for return flights in January 2025

Search Deals

Find flight deals to St. Charles

Cheapest flights to St. Charles
Explore the most affordable flight options available to St. Charles. Find the lowest fares based on data from user searches, with prices last updated on 17 January 2025.

Thu 6/214:00LGW - STL

1 stop15h 31mMultiple Airlines

Mon 24/223:08STL - LGW

1 stop29h 27mMultiple Airlines

Deal found 16/1£589

Thu 6/211:45LHR - STL

1 stop16h 43mFinnair

Mon 24/211:25STL - LHR

1 stop13h 55mFinnair

Deal found 15/1£599

Fri 17/106:00LHR - STL

3 stops35h 45mMultiple Airlines

Fri 24/113:00STL - LHR

3 stops22h 30mMultiple Airlines

Deal found 16/1£669

Sun 16/214:05LHR - STL

2 stops38h 12mVirgin Atlantic

Sun 23/216:40STL - LHR

1 stop33h 15mVirgin Atlantic

Deal found 16/1£736

Tue 4/309:30LHR - STL

1 stop34h 25mUnited Airlines

Tue 25/317:33STL - LHR

1 stop10h 37mUnited Airlines

Deal found 15/1£741

Thu 23/118:00LHR - STL

2 stops22h 24mLufthansa

Thu 30/108:27STL - LHR

1 stop19h 13mLufthansa

Deal found 16/1£755

Mon 27/106:30LHR - STL

2 stops16h 07mDelta

Mon 10/210:59STL - LHR

1 stop17h 36mDelta

Deal found 16/1£756

Mon 5/519:10LCY - STL

2 stops26h 37mLufthansa

Mon 12/517:31STL - LCY

2 stops19h 04mLufthansa

Deal found 16/1£787

Thu 6/209:25LCY - STL

2 stops35h 41mMultiple Airlines

Mon 24/215:50STL - LCY

2 stops15h 00mMultiple Airlines

Deal found 16/1£790

Thu 13/209:20LCY - STL

2 stops18h 29mVirgin Atlantic

Thu 20/206:43STL - LCY

2 stops18h 32mVirgin Atlantic

Deal found 16/1£805

Sun 2/312:30LGW - STL

2 stops26h 21mAmerican Airlines

Sun 9/308:49STL - LGW

2 stops19h 11mAmerican Airlines

Deal found 16/1£811

Mon 8/912:00LGW - STL

2 stops17h 39mDelta

Sun 14/911:51STL - LGW

2 stops16h 09mDelta

Deal found 16/1£818

Best flights to St. Charles
Discover carefully curated flight deals to St. Charles that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 January 2025.

Thu 6/214:00LGW - STL

1 stop15h 31mMultiple Airlines

Mon 24/223:08STL - LGW

1 stop29h 27mMultiple Airlines

Deal found 16/1£589

Thu 6/211:45LHR - STL

1 stop16h 43mFinnair

Mon 24/211:25STL - LHR

1 stop13h 55mFinnair

Deal found 15/1£599

Sun 16/214:05LHR - STL

2 stops38h 12mVirgin Atlantic

Sun 23/216:40STL - LHR

1 stop33h 15mVirgin Atlantic

Deal found 16/1£736

Tue 4/309:30LHR - STL

1 stop34h 25mUnited Airlines

Tue 25/317:33STL - LHR

1 stop10h 37mUnited Airlines

Deal found 15/1£741

Mon 27/108:40LHR - STL

2 stops19h 09mDelta

Mon 10/211:50STL - LHR

2 stops17h 20mDelta

Deal found 16/1£756

Tue 18/310:25LHR - STL

1 stop14h 25mLufthansa

Sat 22/317:33STL - LHR

2 stops13h 17mLufthansa

Deal found 16/1£758

Sun 2/312:30LGW - STL

2 stops26h 21mAmerican Airlines

Sun 9/308:49STL - LGW

2 stops19h 11mAmerican Airlines

Deal found 16/1£811

Thu 22/509:15LHR - STL

1 stop11h 20mBritish Airways

Tue 3/618:23STL - LHR

1 stop10h 32mBritish Airways

Deal found 16/1£866

Thu 17/408:00LHR - STL

1 stop21h 00mAustrian Airlines

Tue 22/407:25STL - LHR

1 stop31h 15mAustrian Airlines

Deal found 16/1£883

Sat 5/414:20LHR - STL

2 stops39h 11mScandinavian Airlines

Thu 17/416:00STL - LHR

2 stops18h 00mScandinavian Airlines

Deal found 16/1£1,027

Fri 31/105:55LGW - STL

2 stops39h 43mTurkish Airlines

Sun 2/217:30STL - LGW

2 stops33h 50mTurkish Airlines

Deal found 16/1£1,054

Sun 6/422:00LHR - STL

2 stops31h 24mAer Lingus

Fri 18/410:15STL - LHR

2 stops18h 05mAer Lingus

Deal found 16/1£1,103

Last-minute flights to St. Charles
Discover last-minute flight deals to St. Charles. Data last updated 17 January 2025 and is based on user searches.

Fri 17/106:00LHR - STL

3 stops35h 45mMultiple Airlines

Fri 24/113:00STL - LHR

3 stops22h 30mMultiple Airlines

Deal found 16/1£669

Fri 17/119:30LHR - STL

2 stops34h 07mScandinavian Airlines

Fri 24/112:52STL - LHR

2 stops21h 08mScandinavian Airlines

Deal found 16/1£842

Wed 22/112:10LHR - STL

2 stops15h 59mAer Lingus

Thu 20/211:57STL - LHR

2 stops19h 28mAer Lingus

Deal found 16/1£1,150

Wed 22/110:15LGW - STL

2 stops59h 23mTurkish Airlines

Thu 20/217:36STL - LGW

2 stops21h 54mTurkish Airlines

Deal found 16/1£2,333

Thu 23/106:40LHR - STL

3 stops35h 05mMultiple Airlines

Thu 30/113:00STL - LHR

3 stops21h 00mMultiple Airlines

Deal found 16/1£681

Thu 23/118:00LHR - STL

2 stops22h 24mLufthansa

Thu 30/108:27STL - LHR

1 stop19h 13mLufthansa

Deal found 16/1£755

Mon 27/114:00LGW - STL

2 stops30h 43mMultiple Airlines

Mon 10/220:31STL - LGW

1 stop32h 04mMultiple Airlines

Deal found 16/1£677

Mon 27/108:40LHR - STL

2 stops19h 09mDelta

Mon 10/211:50STL - LHR

2 stops17h 20mDelta

Deal found 16/1£756

Mon 27/111:35LHR - STL

1 stop15h 08mUnited Airlines

Mon 10/217:30STL - LHR

1 stop11h 45mUnited Airlines

Deal found 16/1£757

Mon 27/109:15LCY - STL

3 stops32h 15mMultiple Airlines

Mon 10/212:15STL - LCY

3 stops18h 35mMultiple Airlines

Deal found 16/1£835

Fri 31/110:00LCY - STL

2 stops19h 30mLufthansa

Sun 2/217:30STL - LCY

2 stops33h 55mLufthansa

Deal found 16/1£803

Thu 6/214:00LGW - STL

1 stop15h 31mMultiple Airlines

Mon 24/223:08STL - LGW

1 stop29h 27mMultiple Airlines

Deal found 16/1£589

One-way flights to St. Charles
Search for one-way flight options to St. Charles. Find affordable one-way fares based on user searches. Data last updated 17 January 2025.

Wed 9/421:20LGW - STL

3 stops41h 46mMultiple Airlines

Deal found 16/1£297

Mon 7/413:25LHR - STL

3 stops40h 21mMultiple Airlines

Deal found 16/1£357

Tue 21/121:40LTN - STL

3 stops47h 03mMultiple Airlines

Deal found 16/1£473

Sat 15/217:30STN - STL

3 stops45h 46mMultiple Airlines

Deal found 16/1£484

Thu 3/710:00LHR - STL

2 stops18h 45mLufthansa

Deal found 16/1£601

Sun 23/314:50LHR - STL

2 stops37h 13mWestJet

Deal found 17/1£606

Sun 23/313:40LHR - STL

2 stops29h 43mTAP AIR PORTUGAL

Deal found 16/1£677

Tue 25/206:45LHR - STL

2 stops18h 44mBritish Airways

Deal found 16/1£696

Mon 7/412:00LHR - STL

2 stops16h 10mAer Lingus

Deal found 16/1£774

Sat 5/714:25LHR - STL

1 stop14h 50mFinnair

Deal found 15/1£816

Sun 6/413:10LCY - STL

2 stops15h 00mAer Lingus

Deal found 16/1£818

Thu 10/712:30LHR - STL

1 stop13h 42mIberia

Deal found 16/1£826

Find flights to St. Charles within your budget

Fly from

Route

Depart

Return

Price

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 6/2

14:00-23:31

1 stop15h 31m

Lambert-St Louis

Mon 24/2

23:08-10:35

1 stop29h 27m

£589

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Thu 6/2

11:45-22:28

1 stop16h 43m

Lambert-St Louis

Mon 24/2

11:25-07:20

1 stop13h 55m

£599

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Fri 31/1

06:00-11:30

3 stops35h 30m

Lambert-St Louis

Sun 2/2

17:15-07:10

3 stops31h 55m

£686

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Sun 16/2

14:05-22:17

2 stops38h 12m

Lambert-St Louis

Sun 23/2

16:40-07:55

1 stop33h 15m

£736

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Tue 4/3

09:30-13:55

1 stop34h 25m

Lambert-St Louis

Tue 25/3

17:33-09:10

1 stop10h 37m

£741

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Mon 27/1

08:40-21:49

2 stops19h 09m

Lambert-St Louis

Mon 10/2

11:50-11:10

2 stops17h 20m

£756

LondonSt. Louis

LHR - STL

LHRSTL

London Heathrow

Tue 18/3

10:25-19:50

1 stop14h 25m

Lambert-St Louis

Sat 22/3

17:33-11:50

2 stops13h 17m

£758

LondonSt. Louis

LCY - STL

LCYSTL

London City

Mon 5/5

19:10-15:47

2 stops26h 37m

Lambert-St Louis

Mon 12/5

17:31-18:35

2 stops19h 04m

£787

LondonSt. Louis

LCY - STL

LCYSTL

London City

Thu 6/2

09:25-15:06

2 stops35h 41m

Lambert-St Louis

Mon 24/2

15:50-12:50

2 stops15h 00m

£790

LondonSt. Louis

LCY - STL

LCYSTL

London City

Thu 13/2

09:20-21:49

2 stops18h 29m

Lambert-St Louis

Thu 20/2

06:43-07:15

2 stops18h 32m

£805

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 46 results

...

Best time to book a flight to St. Charles

Have a flexible travel schedule? Discover the best time to fly to St. Charles 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 to St. Charles

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

When is the best time to book a flight to St. Charles?

To ensure you get the cheapest price possible for a flight to St. Charles, you should look to book at least 80 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.

How long is the flight to St. Charles?

On average, a flight from London to St. Charles takes 19 hours 17 minutes. Flights to St. Charles from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to St. Charles?

Users looking for the lowest fares to St. Charles should consider flying on Wednesday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday afternoons, when prices are usually at their highest.

What are the most popular airlines that fly to St. Charles?

The most popular airlines flying from London to St. Charles are Finnair, British Airways and Virgin Atlantic.

Finnair

From £647

British Airways

From £836

Virgin Atlantic

From £870

Lufthansa

From £909

What are the cheapest airlines that fly to St. Charles?

The cheapest airlines flying from London to St. Charles are Air Canada, United Airlines and Finnair.

Rainfall in St. Charles by month

In terms of precipitation, rainfall in St. Charles 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. Charles when rainfall is around 56.0 mm.

Temperature in St. Charles by month

If weather is an important factor for your trip to St. Charles, 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. Charles

Read reviews from past customers who have flown Delta, Lufthansa and United Airlines to St. Charles. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

8,513 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,339 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,285 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines

7.6

Good

786 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic

7.5

Good

664 reviews

Delta

8.0

Very Good

8,513 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Can I find cheaper flights to St. Charles if I am willing to have stopovers?
Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to St. Charles on Cheapflights that require 1 or 2 stops for potential cost savings.
What is the best airline to fly to St. Charles?
Based on reviews from Cheapflights users, Air Canada is rated the highest out of the airlines that fly to St. Charles.
How much is a return flight to St. Charles?
A return flight to St. Charles will typically cost around £248, however they can be found for as little as £218.
Where does the fastest flight to St. Charles depart from?
For those looking to save time traveling to St. Charles, Edinburgh Turnhouse offers the quickest one-way flight (12 hours 16 minutes).
Does Lambert-St Louis have car hire?
Yes. Those touching down at Lambert-St Louis can take advantage of the car hire services offered upon their arrival.
Are there hotels close to Lambert-St Louis?
Yes. Lambert-St Louis has hotels nearby for those requiring accommodations. Hampton Inn St. Louis-Airport is the closest property to Lambert-St Louis (0.0 mi away from Lambert-St Louis).

See more FAQs

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How does Cheapflights help users find flights to St. Charles?

Deals for St. Charles flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to St. Charles?

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. Charles.

Can Cheapflights find flights to St. Charles with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights to St. Charles, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights to St. Charles become cheaper?

Not ready to book yet? You can track prices for flights to St. Charles on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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£297+ Cheap flights to St. Charles

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.

Flights to St. Charles in 2025

Find the latest flights to St. Charles in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 17 January 2025.

Return from

One-way from

Popular in

Cheapest in

Average price

Find flight deals to St. Charles

Cheapest flights to St. CharlesExplore the most affordable flight options available to St. Charles. Find the lowest fares based on data from user searches, with prices last updated on 17 January 2025.

Explore the most affordable flight options available to St. Charles. Find the lowest fares based on data from user searches, with prices last updated on 17 January 2025.

Find flights to St. Charles within your budget

Locate flights to St. Charles that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 17 January 2025.

Best time to book a flight to St. Charles

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

Travel insights for flights to St. Charles

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

When is the best time to book a flight to St. Charles?

Use this chart to determine the optimal time to book a return flight from London to St. Charles. Price data was last updated on 10 January 2025.

How long is the flight to St. Charles?

When is the cheapest time to fly to St. Charles?

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

What are the most popular airlines that fly to St. Charles?

What are the cheapest airlines that fly to St. Charles?

Rainfall in St. Charles by month

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

Temperature in St. Charles by month

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

Reviews of airlines servicing St. Charles

Read reviews from past customers who have flown Delta, Lufthansa and United Airlines to St. Charles. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Can I find cheaper flights to St. Charles if I am willing to have stopovers?

What is the best airline to fly to St. Charles?

How much is a return flight to St. Charles?

Where does the fastest flight to St. Charles depart from?

Does Lambert-St Louis have car hire?

Are there hotels close to Lambert-St Louis?

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.

Search flights to St. Charles by cabin class

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

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to St. Charles?

Why should you use Cheapflights to find cheap flight tickets to St. Charles?

Can Cheapflights find flights to St. Charles with no change fees?

Can Cheapflights notify me if prices for flights to St. Charles become cheaper?

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Cheapest flights to St. Charles
Explore the most affordable flight options available to St. Charles. Find the lowest fares based on data from user searches, with prices last updated on 17 January 2025.