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Cheap flights from London Heathrow Airport to Castries from £403

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — UVF
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Castries

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Castries
Explore the most affordable flight options available from Heathrow to Castries. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 March 2026.

Mon 13/411:55
LHR
-
UVF
1 stop31h 42m
JetBlue
Wed 22/415:56
UVF
-
LHR
1 stop36h 34m
JetBlue
Deal found 5/3£634
Mon 6/411:55
LHR
-
UVF
1 stop34h 52m
JetBlue
Tue 21/415:57
UVF
-
LHR
1 stop23h 48m
JetBlue
Deal found 9/3£636
Wed 8/411:55
LHR
-
UVF
1 stop34h 52m
JetBlue
Wed 22/415:56
UVF
-
LHR
1 stop23h 49m
JetBlue
Deal found 8/3£637
Mon 11/508:15
LHR
-
UVF
1 stop35h 12m
JetBlue
Thu 21/513:50
UVF
-
LHR
1 stop25h 55m
JetBlue
Deal found 10/3£639
Wed 8/411:55
LHR
-
UVF
1 stop34h 52m
JetBlue
Wed 15/415:57
UVF
-
LHR
1 stop36h 33m
JetBlue
Deal found 9/3£666
Tue 12/508:15
LHR
-
UVF
1 stop35h 12m
JetBlue
Thu 21/516:41
UVF
-
LHR
1 stop23h 04m
JetBlue
Deal found 6/3£678
Mon 13/411:55
LHR
-
UVF
1 stop31h 42m
JetBlue
Mon 20/415:57
UVF
-
LHR
1 stop23h 48m
JetBlue
Deal found 8/3£713
Thu 23/414:05
LHR
-
UVF
2 stops30h 15m
Air Canada
Thu 30/416:15
UVF
-
LHR
2 stops47h 45m
Air Canada
Deal found 9/3£715

Find flight deals from Heathrow to Castries

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Castries (UVF). 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 10 March 2026.

Round-trip from

£634

One-way from

£403

Popular in

December

Cheapest in

June

Average price

£593
JetBlue
  • JetBlue
  • 13/4-22/4
  • 2 total stops
  • 68h 16m total
  • London to Castries
Search Deals
8/5
  • 8/5
  • 2 total stops
  • 45h 15m total
  • London to Castries
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£73 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Castries 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 858,174 searches. Data last updated 10 March 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Castries that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 13/4

08:15-14:37

1 stop35h 22m

Castries Hewanorra

Wed 22/4

15:56-20:45

1 stop23h 49m

£679

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 31/3

09:55-13:58

2 stops57h 03m

Castries Hewanorra

Mon 6/4

15:18-06:45

2 stops34h 27m

£754

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 16/8

14:05-14:20

2 stops53h 15m

Castries Hewanorra

Tue 25/8

15:15-11:50

1 stop15h 35m

£770

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 2/4

15:15-13:58

1 stop27h 43m

Castries Hewanorra

Tue 7/4

15:18-13:45

2 stops41h 27m

£787

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 12/5

19:25-13:45

2 stops23h 20m

Castries Hewanorra

Thu 21/5

15:16-12:10

1 stop15h 54m

£832
Fastest return journey

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 11/5

20:10-14:13

2 stops23h 03m

Castries Hewanorra

Thu 21/5

15:16-12:10

1 stop15h 54m

£832

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Fri 14/8

12:30-13:09

1 stop29h 39m

Castries Hewanorra

Fri 4/9

15:09-18:55

2 stops22h 46m

£933

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Fri 5/6

11:55-15:19

1 stop32h 24m

Castries Hewanorra

Sun 7/6

16:41-09:30

1 stop35h 49m

£934

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 23/4

19:25-13:45

2 stops23h 20m

Castries Hewanorra

Sun 17/5

14:45-19:45

2 stops24h 00m

£963

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 26/7

18:05-14:14

2 stops25h 09m

Castries Hewanorra

Sun 16/8

15:15-12:50

1 stop16h 35m

£1,003

Flights are sorted by cheapest return flights first.

Deals found on 7/3

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to Castries

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

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Castries

What is the cheapest month to book a flight from London Heathrow Airport to Castries?

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Castries (average of £495). Flying from London Heathrow Airport to Castries in December is currently the most expensive (average of £795). 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.

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 10 March 2026.
Read reviews from past customers who have flown with KLM,Finnair, andAir Canada from London Heathrow Airport to Castries. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,468 reviews
Check prices

Comfort

7.6

Crew

8.4

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,468 reviews
KLM
7.8
Good
1,468 reviews
Check prices

Comfort

7.6

Crew

8.4

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Finnair
7.6
Good
1,371 reviews
KLM
7.8
Good
1,468 reviews
Check prices

Comfort

7.6

Crew

8.4

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Air Canada
7.1
Good
10,800 reviews
KLM
7.8
Good
1,468 reviews
Check prices

Comfort

7.6

Crew

8.4

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,781 reviews
KLM
7.8
Good
1,468 reviews
Check prices

Comfort

7.6

Crew

8.4

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Castries. 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 Castries from London Heathrow?

    Most people fly into Castries Hewanorra (UVF) if they book a flight to Castries from London Heathrow. On average, Hewanorra has 0 inbound flights from London Heathrow per day from 4 airlines. Castries Hewanorra is conveniently located just 19.3 mi from Castries’s city center.

  • How long is the flight from London Heathrow Airport to Castries?

    Departing from London Heathrow Airport to Castries will take you 35h 22m. The distance from London Heathrow Airport to Castries is about 4217 mi. This flight may include one or multiple stops.

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

    Currently priced at £503, British Airways will fly you from London Heathrow Airport to Castries and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and Finnair - these airlines can fly you to your destination from £535 and £705, respectively. British Airways is 32% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Heathrow to Castries that include hotel bookings?

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

  • How can I find direct flights from Heathrow to Castries?

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

  • Can I find deals for business class flights from Heathrow to Castries?

    Yes. Cheapflights offers flight deals from Heathrow to Castries 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 London Heathrow Airport to Castries?

    Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Castries (average of £495). Flying from London Heathrow Airport to Castries in December is currently the most expensive (average of £795). 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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Alternative routes for Heathrow to Castries

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Castries flights
Heathrow to Castries flights
Gatwick to Castries flights
London City to Castries flights

Top 4 airlines flying from Heathrow to Castries

Discover the top 4 airlines that operate flights from Heathrow to Castries. 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 858,174 searches. Data last updated 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£503Average£759FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapest£535Average£720FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£705Average£905FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£1,078Average£1,492FlexibilityNo cancel feeOn-time75%
Search KLM flights

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 from Heathrow to Castries?

Cheapflights helps you search for flights from Heathrow to Castries via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Can Cheapflights find flights from Heathrow to Castries with no change fees?

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

Can Cheapflights notify me if prices for flights from Heathrow to Castries become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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