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Cheap flights from London Heathrow Airport to Castries from £421

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — UVF
9 Sep — 16 Sep1
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 August 2026.

Tue 15/908:15 -
1 stop36h 18m
Sun 27/916:39 -
1 stop23h 06m
Deal found 9/8£645
Thu 17/911:55 -
1 stop32h 39m
Mon 28/916:39 -
1 stop35h 51m
Deal found 8/8£647
Wed 30/908:15 -
1 stop36h 19m
Wed 7/1016:39 -
1 stop23h 06m
Deal found 10/8£656
Tue 3/1112:20 -
1 stop31h 49m
Fri 13/1117:15 -
1 stop23h 30m
Deal found 9/8£658
Thu 24/918:05 -
2 stops24h 57m
Tue 29/915:02 -
2 stops34h 23m
Deal found 7/8£665
Fri 25/914:10 -
2 stops28h 52m
Fri 2/1015:02 -
2 stops34h 23m
Deal found 10/8£666
Tue 22/908:15 -
1 stop36h 18m
Tue 29/916:39 -
1 stop23h 06m
Deal found 5/8£671
Wed 9/911:55 -
1 stop32h 39m
Tue 15/916:39 -
1 stop23h 06m
Deal found 9/8£674
Fri 25/908:15 -
1 stop35h 49m
Fri 2/1016:39 -
1 stop23h 06m
Deal found 10/8£678

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 August 2026.

Round-trip from

£645

One-way from

£421

Popular in

December

Cheapest in

May

Average price

£798
JetBlue
  • JetBlue
  • 15/9-27/9
  • 2 total stops
  • 59h 24m total
  • London to Castries
Search Deals
American Airlines
  • American Airlines
  • 15/9
  • 1 total stop
  • 33h 07m 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 August 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 August 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 London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Fri 21/8

15:00-14:19

1 stop28h 19m

Castries Hewanorra

Mon 24/8

15:19-12:10

1 stop15h 51m

£684

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Thu 20/8

15:35-13:49

1 stop27h 14m

Castries Hewanorra

Fri 28/8

15:19-12:10

1 stop15h 51m

£684

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Sat 9/1

18:05-16:02

2 stops25h 57m

Castries Hewanorra

Thu 21/1

17:02-12:05

1 stop15h 03m

£687

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Sat 29/8

16:20-14:14

2 stops26h 54m

Castries Hewanorra

Mon 28/9

15:32-13:15

1 stop16h 43m

£741

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Tue 25/8

11:15-14:14

1 stop31h 59m

Castries Hewanorra

Mon 14/9

15:32-13:15

1 stop16h 43m

£769

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Sat 29/8

09:40-14:14

2 stops33h 34m

Castries Hewanorra

Sat 19/9

15:32-13:15

1 stop16h 43m

£889
Fastest return journey

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Fri 11/12

19:20-12:29

1 stop21h 09m

Castries Hewanorra

Sat 19/12

13:40-09:40

1 stop16h 00m

£892

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Sun 30/8

11:15-14:14

1 stop31h 59m

Castries Hewanorra

Tue 29/9

15:32-13:15

1 stop16h 43m

£927

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Fri 4/9

15:15-14:14

1 stop27h 59m

Castries Hewanorra

Wed 30/9

15:32-13:15

1 stop16h 43m

£977

LondonCastries

LHR London Heathrow - UVF Castries Hewanorra

LHRUVF

London Heathrow

Fri 23/10

11:05-13:31

2 stops31h 26m

Castries Hewanorra

Sat 31/10

16:17-11:05

1 stop14h 48m

£981

Flights are sorted by cheapest return flights first.

Deals found on 7/8

Showing 1-10 of 16 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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Castries (average of £498). Flying from London Heathrow Airport to Castries in December is currently the most expensive (average of £1,206). 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 August 2026.
Read reviews from past customers who have flown with American Airlines,Air Canada, andBritish Airways 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.
American Airlines
7.1
Good
11,899 reviews
Check prices

Comfort

7.2

Entertainment

6.8

Food

6.4

Crew

7.9

Boarding

7.5

Overall

7.1

Reviews

1 / 20
10.0
Excellent

Ron,Aug 2026

LHR - LAX

Unfortunately it took an hour and 15 minutes for luggage to get to customs so I had to pay for hotel and other ticket to get home Missed flight
American Airlines
7.1
Good
11,899 reviews
American Airlines
7.1
Good
11,899 reviews
Check prices

Comfort

7.2

Entertainment

6.8

Food

6.4

Crew

7.9

Boarding

7.5

Overall

7.1

Reviews

1 / 20
10.0
Excellent

Ron,Aug 2026

LHR - LAX

Unfortunately it took an hour and 15 minutes for luggage to get to customs so I had to pay for hotel and other ticket to get home Missed flight
Air Canada
7.1
Good
11,460 reviews
American Airlines
7.1
Good
11,899 reviews
Check prices

Comfort

7.2

Entertainment

6.8

Food

6.4

Crew

7.9

Boarding

7.5

Overall

7.1

Reviews

1 / 20
10.0
Excellent

Ron,Aug 2026

LHR - LAX

Unfortunately it took an hour and 15 minutes for luggage to get to customs so I had to pay for hotel and other ticket to get home Missed flight
British Airways
6.7
Okay
8,155 reviews
American Airlines
7.1
Good
11,899 reviews
Check prices

Comfort

7.2

Entertainment

6.8

Food

6.4

Crew

7.9

Boarding

7.5

Overall

7.1

Reviews

1 / 20
10.0
Excellent

Ron,Aug 2026

LHR - LAX

Unfortunately it took an hour and 15 minutes for luggage to get to customs so I had to pay for hotel and other ticket to get home Missed flight

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 3 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 54m. 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 £498, 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 American Airlines and Air Canada - these airlines can fly you to your destination from £568 and £656, respectively. British Airways is 37% 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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Castries (average of £498). Flying from London Heathrow Airport to Castries in December is currently the most expensive (average of £1,206). 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

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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 3 airlines flying from Heathrow to Castries

Discover the top 3 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 August 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£498Average£762FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£568Average£876FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest£656Average£740FlexibilityNo cancel feeOn-time67%
Search Air Canada 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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