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£436+ 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 22/2. Fares are subject to change and may not be available on all flights or dates of travel.
— SLU
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Castries in 2026

Find the latest flights to Castries in 2026, 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 16 January 2026.

Return from

£629

One-way from

£436

Popular in

April

Cheapest in

November

Average price

£646

Good round-trip deal

£632 or less

Good one-way deal

£483 or less
17/5-15/6
  • 17/5-15/6
  • 2 total stops
  • 26h 40m total
  • London to Castries
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22/2
  • 22/2
  • 3 total stops
  • 57h 45m total
  • London to Castries
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Highest demand for flights based on searches. 24% potential increase in price (£256 potential increase over avg. return price).
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Cheapest flight prices on average. 17% potential price decrease (£116 potential savings vs. average return price).
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Average for return flights in January 2026
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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

Enter your travel dates to find the best prices.

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 16 January 2026.

Mon 2/213:20
LHR
-
SLU
1 stop33h 05m
Multiple Airlines
Mon 16/216:20
SLU
-
LHR
1 stop13h 15m
Multiple Airlines
Deal found 15/1£640
Wed 21/109:40
LHR
-
SLU
1 stop32h 55m
Multiple Airlines
Wed 4/209:10
SLU
-
LHR
1 stop16h 15m
Multiple Airlines
Deal found 14/1£705
Wed 25/208:00
LHR
-
SLU
1 stop15h 00m
Multiple Airlines
Wed 11/312:35
SLU
-
LHR
1 stop12h 50m
Multiple Airlines
Deal found 15/1£705
Tue 17/309:40
LHR
-
SLU
1 stop12h 45m
Multiple Airlines
Wed 25/312:35
SLU
-
LHR
1 stop12h 50m
Multiple Airlines
Deal found 13/1£710
Mon 9/309:40
LHR
-
SLU
1 stop12h 45m
Multiple Airlines
Wed 18/312:35
SLU
-
LHR
1 stop12h 50m
Multiple Airlines
Deal found 14/1£711
Fri 13/309:40
LHR
-
SLU
1 stop30h 25m
Multiple Airlines
Thu 19/315:45
SLU
-
LHR
1 stop14h 10m
Multiple Airlines
Deal found 15/1£718
Sat 31/114:30
LHR
-
SLU
1 stop28h 45m
Multiple Airlines
Sat 7/215:45
SLU
-
LHR
1 stop13h 50m
Multiple Airlines
Deal found 14/1£719
Sun 6/909:20
LHR
-
SLU
1 stop14h 40m
Multiple Airlines
Mon 21/916:20
SLU
-
LHR
1 stop12h 00m
Multiple Airlines
Deal found 14/1£720
Sat 25/409:20
LHR
-
SLU
1 stop14h 40m
Multiple Airlines
Sat 2/515:45
SLU
-
LHR
1 stop12h 35m
Multiple Airlines
Deal found 13/1£722
Fri 23/110:40
LGW
-
SLU
3 stops30h 30m
Multiple Airlines
Thu 5/218:20
SLU
-
LGW
2 stops31h 40m
Multiple Airlines
Deal found 15/1£933
Thu 29/119:35
LGW
-
SLU
2 stops26h 50m
Multiple Airlines
Thu 5/212:35
SLU
-
LGW
1 stop12h 55m
Multiple Airlines
Deal found 15/1£954
Mon 2/210:40
LGW
-
SLU
3 stops32h 55m
Multiple Airlines
Mon 9/219:10
SLU
-
LGW
3 stops35h 45m
Multiple Airlines
Deal found 14/1£999

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 16 January 2026.
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

Wed 25/2

08:00-19:00

1 stop15h 00m

Castries George F. L. Charle

Wed 11/3

12:35-05:25

1 stop12h 50m

£705

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Sat 25/4

09:20-19:00

1 stop14h 40m

Castries George F. L. Charle

Sat 2/5

15:45-09:20

1 stop12h 35m

£722

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Fri 6/2

09:40-15:15

1 stop33h 35m

Castries George F. L. Charle

Fri 6/3

12:35-05:25

1 stop12h 50m

£741

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 20/4

09:20-18:25

1 stop14h 05m

Castries George F. L. Charle

Mon 27/4

16:20-09:20

1 stop12h 00m

£777

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Sat 25/4

09:20-19:00

1 stop14h 40m

Castries George F. L. Charle

Sat 9/5

15:45-09:20

1 stop12h 35m

£823

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Fri 20/2

09:40-19:00

1 stop13h 20m

Castries George F. L. Charle

Mon 2/3

16:20-05:25

1 stop33h 05m

£839

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Fri 13/3

08:55-13:10

2 stops32h 15m

Castries George F. L. Charle

Thu 19/3

17:50-20:10

2 stops22h 20m

£840

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Mon 9/3

20:00-15:35

3 stops23h 35m

Castries George F. L. Charle

Wed 18/3

10:15-20:10

3 stops29h 55m

£869

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Sun 1/3

20:00-15:35

2 stops23h 35m

Castries George F. L. Charle

Sat 7/3

09:10-20:10

3 stops31h 00m

£873

LondonCastries

LGW - SLU

LGWSLU

London Gatwick

Thu 29/1

19:35-18:25

2 stops26h 50m

Castries George F. L. Charle

Thu 5/2

12:35-05:30

1 stop12h 55m

£954

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 25 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 17 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 £450

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 16 January 2026.
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
7,680 reviews
Check prices

Crew

7.6

Entertainment

6.4

Overall

6.7

Food

6.4

Comfort

6.8

Boarding

6.9

Reviews

1 / 20
10.0
Excellent

María Victoria,Nov 2025

LHR - GRU

Seats were comfortable for economy. Blanket and pillow provided, same as headphones. For some reason the uk plug wouldn’t charge and had to use the US charger. Also couldn’t use WiFi as keep saying BA club pw was wrong although it wasn’t: but minor things. Overall good flight and attentive crew.
British Airways
6.7
Okay
7,680 reviews
British Airways
6.7
Okay
7,680 reviews
Check prices

Crew

7.6

Entertainment

6.4

Overall

6.7

Food

6.4

Comfort

6.8

Boarding

6.9

Reviews

1 / 20
10.0
Excellent

María Victoria,Nov 2025

LHR - GRU

Seats were comfortable for economy. Blanket and pillow provided, same as headphones. For some reason the uk plug wouldn’t charge and had to use the US charger. Also couldn’t use WiFi as keep saying BA club pw was wrong although it wasn’t: but minor things. Overall good flight and attentive crew.

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 £116, while return flights cost around £122.

  • How much is a return flight to Castries?

    A return flight to Castries will typically cost around £132, however they can be found for as little as £122.

  • 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 45 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. Seaview Apartel 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.

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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.

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