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Cheap flights from London Heathrow Airport to Castries from £399

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — UVF
22 Apr — 29 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 23 March 2026.

Tue 12/508:15
LHR
-
UVF
1 stop35h 12m
JetBlue
Fri 22/516:41
UVF
-
LHR
1 stop35h 49m
JetBlue
Deal found 19/3£630
Mon 11/508:15
LHR
-
UVF
1 stop35h 12m
JetBlue
Thu 21/516:41
UVF
-
LHR
1 stop23h 04m
JetBlue
Deal found 19/3£694
Wed 6/508:15
LHR
-
UVF
1 stop35h 12m
JetBlue
Wed 20/515:57
UVF
-
LHR
1 stop36h 33m
JetBlue
Deal found 20/3£705
Wed 15/415:15
LHR
-
UVF
1 stop27h 47m
Multiple Airlines
Wed 22/415:22
UVF
-
LHR
2 stops18h 13m
Multiple Airlines
Deal found 19/3£732
Tue 14/416:20
LHR
-
UVF
2 stops26h 42m
Delta
Thu 23/415:22
UVF
-
LHR
2 stops37h 58m
Delta
Deal found 20/3£737
Sun 19/417:45
LHR
-
UVF
2 stops25h 17m
Delta
Tue 28/415:22
UVF
-
LHR
1 stop16h 53m
Delta
Deal found 22/3£738
Sat 4/415:15
LHR
-
UVF
1 stop27h 43m
Delta
Tue 7/415:18
UVF
-
LHR
1 stop34h 07m
Delta
Deal found 21/3£739
Thu 2/416:20
LHR
-
UVF
2 stops26h 38m
Delta
Tue 7/415:18
UVF
-
LHR
2 stops34h 27m
Delta
Deal found 21/3£741
Sun 10/508:15
LHR
-
UVF
1 stop35h 12m
JetBlue
Fri 22/513:50
UVF
-
LHR
1 stop25h 55m
JetBlue
Deal found 18/3£742

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 23 March 2026.

Round-trip from

£630

One-way from

£399

Popular in

December

Cheapest in

June

Average price

£594
JetBlue
  • JetBlue
  • 12/5-22/5
  • 2 total stops
  • 71h 01m total
  • London to Castries
Search Deals
3/6
  • 3/6
  • 2 total stops
  • 36h 40m total
  • London to Castries
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£71 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 23 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
Fastest return journey

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sat 4/4

16:50-13:58

2 stops26h 08m

Castries Hewanorra

Thu 16/4

15:22-11:20

1 stop14h 58m

£737

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 15/4

11:15-14:02

1 stop31h 47m

Castries Hewanorra

Thu 23/4

15:22-06:25

1 stop34h 03m

£737

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 4/5

16:20-14:02

2 stops26h 42m

Castries Hewanorra

Thu 14/5

15:25-10:20

2 stops37h 55m

£737

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 14/4

09:20-14:02

1 stop33h 42m

Castries Hewanorra

Wed 22/4

15:22-06:25

1 stop34h 03m

£737

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 14/4

16:20-14:02

2 stops26h 42m

Castries Hewanorra

Thu 23/4

15:22-10:20

2 stops37h 58m

£737

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 15/4

11:15-14:02

1 stop31h 47m

Castries Hewanorra

Wed 22/4

15:22-06:20

2 stops33h 58m

£737

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Thu 7/5

15:15-14:05

1 stop27h 50m

Castries Hewanorra

Thu 14/5

15:25-10:20

2 stops37h 55m

£737

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 19/4

17:45-14:02

2 stops25h 17m

Castries Hewanorra

Tue 28/4

15:22-13:15

1 stop16h 53m

£738

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Tue 21/4

09:15-14:26

1 stop34h 11m

Castries Hewanorra

Tue 28/4

15:13-06:55

1 stop34h 42m

£840
Cheapest one-way

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Wed 3/6

06:00-13:40

2 stops36h 40m

£399

Flights are sorted by cheapest return flights first.

Deals found on 22/3

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 £496). Flying from London Heathrow Airport to Castries in December is currently the most expensive (average of £796). 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 23 March 2026.
Read reviews from past customers who have flown with KLM,Finnair, andAmerican Airlines 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
1,477 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

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
1,477 reviews
KLM
7.8
Good
1,477 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

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
7.7
Good
1,374 reviews
KLM
7.8
Good
1,477 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

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
American Airlines
7.1
Good
11,486 reviews
KLM
7.8
Good
1,477 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

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
10,834 reviews
KLM
7.8
Good
1,477 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

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
7,811 reviews
KLM
7.8
Good
1,477 reviews
Check prices

Comfort

7.6

Crew

8.4

Entertainment

7.1

Boarding

7.8

Food

7.3

Overall

7.8

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 5 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 26h 08m. The distance from London Heathrow Airport to Castries is about 4217 mi.

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

    Currently priced at £507, 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 £536 and £697, 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 £496). Flying from London Heathrow Airport to Castries in December is currently the most expensive (average of £796). 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
London City to Castries flights
Heathrow to Castries flights
Gatwick 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 23 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£507Average£771FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapest£536Average£721FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£706Average£907FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£1,080Average£1,494FlexibilityNo 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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