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£517+ Cheap flights to Castries

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
— SLU
3 Sep — 10 Sep1
1 adult

Flights to Castries in 2025

Find the latest flights to Castries 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 29 August 2025.

Return from

£636

One-way from

£517

Popular in

December

Cheapest in

September

Average price

£692

Good round-trip deal

£549 or less

Good one-way deal

£351 or less
22/9-5/10
  • 22/9-5/10
  • 2 total stops
  • 29h 05m total
  • London to Castries
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7/9
  • 7/9
  • 2 total stops
  • 35h 10m total
  • London to Castries
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Highest demand for flights based on searches. 11% potential increase in price (£58 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£26 potential savings vs. average return price).
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Average for return flights in August 2025
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Price to beat on a round-trip flight from London to Castries George F. L. Charle.
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Price to beat on a one-way flight from London to Castries George F. L. Charle.
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Find flight deals to Castries

Cheapest flights to Castries
Explore the most affordable flight options available to Castries. Find the lowest fares based on data from user searches, with prices last updated on 29 August 2025.

Mon 22/908:05LHR - SLU
1 stop14h 25mMultiple Airlines
Sun 5/1012:10SLU - LHR
1 stop14h 40mMultiple Airlines
Deal found 28/8£636
Thu 18/908:05LHR - SLU
1 stop11h 30mMultiple Airlines
Thu 2/1015:20SLU - LHR
1 stop11h 30mMultiple Airlines
Deal found 27/8£683
Mon 8/908:05LHR - SLU
1 stop14h 25mMultiple Airlines
Thu 18/915:20SLU - LHR
1 stop11h 30mMultiple Airlines
Deal found 27/8£699
Fri 26/911:25LHR - SLU
1 stop12h 35mMultiple Airlines
Fri 3/1012:35SLU - LHR
1 stop12h 45mMultiple Airlines
Deal found 27/8£748
Fri 7/1121:10LHR - SLU
2 stops42h 15mMultiple Airlines
Sun 23/1112:10SLU - LHR
1 stop17h 45mMultiple Airlines
Deal found 27/8£749
Fri 12/909:35LHR - SLU
2 stops32h 35mMultiple Airlines
Mon 22/916:35SLU - LHR
2 stops22h 25mMultiple Airlines
Deal found 28/8£785
Wed 10/911:25LHR - SLU
1 stop12h 35mMultiple Airlines
Wed 24/909:10SLU - LHR
1 stop16h 10mMultiple Airlines
Deal found 28/8£830
Fri 7/1112:55LGW - SLU
2 stops27h 10mMultiple Airlines
Sun 23/1109:10SLU - LGW
2 stops16h 10mMultiple Airlines
Deal found 27/8£887
Thu 18/916:30LGW - SLU
3 stops24h 00mMultiple Airlines
Thu 2/1018:20SLU - LGW
2 stops31h 00mMultiple Airlines
Deal found 27/8£897
Tue 2/912:40LGW - SLU
2 stops25h 50mMultiple Airlines
Tue 9/912:35SLU - LGW
3 stops21h 35mMultiple Airlines
Deal found 28/8£1,028
Sun 12/1012:40LGW - SLU
2 stops32h 10mMultiple Airlines
Mon 20/1015:45SLU - LGW
3 stops33h 35mMultiple Airlines
Deal found 28/8£1,088
Tue 2/912:40LGW - SLU
2 stops25h 50mMultiple Airlines
Wed 17/909:10SLU - LGW
2 stops20h 35mMultiple Airlines
Deal found 27/8£1,173

Cheapflights Fare Finder

 
Locate flights to Castries 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 29 August 2025.
Use the filters below to find and compare flights to Castries that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 22/9

08:05-17:30

1 stop14h 25m

Castries George F. L. Charle

Sun 5/10

12:10-07:50

1 stop14h 40m

£636

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Thu 18/9

08:05-14:35

1 stop11h 30m

Castries George F. L. Charle

Thu 2/10

15:20-07:50

1 stop11h 30m

£683

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 8/9

08:05-17:30

1 stop14h 25m

Castries George F. L. Charle

Thu 18/9

15:20-07:50

1 stop11h 30m

£699

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 2/2

13:20-19:00

1 stop33h 40m

Castries George F. L. Charle

Mon 16/2

15:45-08:30

1 stop12h 45m

£712

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Fri 26/9

11:25-19:00

1 stop12h 35m

Castries George F. L. Charle

Fri 3/10

12:35-06:20

1 stop12h 45m

£748

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Fri 7/11

21:10-11:25

2 stops42h 15m

Castries George F. L. Charle

Sun 23/11

12:10-09:55

1 stop17h 45m

£749

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 2/2

08:00-17:30

1 stop13h 30m

Castries George F. L. Charle

Thu 12/2

15:20-09:55

1 stop14h 35m

£751

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Wed 21/1

09:40-14:35

1 stop32h 55m

Castries George F. L. Charle

Thu 5/2

15:20-09:55

1 stop14h 35m

£777

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Fri 12/9

09:35-13:10

2 stops32h 35m

Castries George F. L. Charle

Mon 22/9

16:35-20:00

2 stops22h 25m

£785

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Fri 2/1

19:25-11:25

2 stops44h 00m

Castries George F. L. Charle

Tue 20/1

07:30-05:25

1 stop17h 55m

£793

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 23 results
1
2
3

Best time to book a flight to Castries

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

Cheapflights Insights

Everything you need to know about your flight to Castries

How long is the flight to Castries?

On average, a flight from London to Castries takes 19 hours 0 minutes. Flights to Castries from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Castries?

The most popular airline flying from London to Castries is British Airways.

British Airways
British Airways
From £534

What are the cheapest airlines that fly to Castries?

The cheapest airline flying from London to Castries is British Airways.

Reviews of airlines servicing Castries

Get insights into the airlines that provide service to Castries. 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 Castries. Reviews last updated 29 August 2025.
Read reviews from past customers who have flown British Airways to Saint Lucia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,320 reviews
Check prices

Boarding

6.9

Comfort

6.7

Overall

6.7

Crew

7.6

Food

6.3

Entertainment

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

LHR - FCO

The crew was wonderful. Service was great. The discomfort came from the passenger behind me kicking the seat.
British Airways
6.7
Okay
7,320 reviews
British Airways
6.7
Okay
7,320 reviews
Check prices

Boarding

6.9

Comfort

6.7

Overall

6.7

Crew

7.6

Food

6.3

Entertainment

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

LHR - FCO

The crew was wonderful. Service was great. The discomfort came from the passenger behind me kicking the seat.

FAQs about flying to Castries

  • What airport do you fly into for flights to Castries?

    For a flight to Castries, you will be flying into George F. L. Charle. Castries George F. L. Charle (SLU) is just 0.7 mi from the center of the city.

  • Can I find cheaper flights to Castries 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 Castries on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Castries?

    Based on reviews from Cheapflights users, British Airways is rated the highest out of the airlines that fly to Castries.

  • What is the cheapest airport to fly to in Castries?

    Castries George F. L. Charle is currently the cheapest airport to fly to in Castries. One-way flights to Castries George F. L. Charle typically cost £115, while return flights cost around £155.

  • How much is a return flight to Castries?

    A return flight to Castries will typically cost around £559, however they can be found for as little as £210.

  • Where does the fastest flight to Castries depart from?

    For those looking to save time traveling to Castries, London offers the quickest one-way flight (12 hours 10 minutes).

  • Does Castries George F. L. Charle have car hire?

    Yes. Those touching down at Castries George F. L. Charle can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Castries George F. L. Charle?

    Yes. Castries George F. L. Charle has hotels nearby for those requiring accommodations. Poinsettia Villa Apartments is the closest property to Castries George F. L. Charle (0.0 mi away from Castries George F. L. Charle).

See more FAQs

Travelling to a place near Castries?

Book flights to Castries if you plan to visit one of these locations
Gros Islet
Rodney Bay

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How does Cheapflights help users find flights to Castries?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Castries. 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 to Castries?

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 Castries.

Can Cheapflights find flights to Castries with no change fees?

Certainly. Search results for flights to Castries 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 to Castries become cheaper?

Yes! Start tracking prices for Castries flights today and get alerted when prices change. To subscribe and begin receiving alerts, click the bell icon next to the flight deals above and provide your email address.

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