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Cheap flights from the United Kingdom to Saint Lucia from £432

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 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — UVF
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Saint Lucia

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Saint Lucia
Explore the most affordable flight options available from United Kingdom to Saint Lucia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.

Thu 11/1213:20LHR - SLU
1 stop27h 50mMultiple Airlines
Thu 18/1215:20SLU - LHR
1 stop14h 35mMultiple Airlines
Deal found 11/12£819
Thu 18/1209:20LGW - SLU
1 stop30h 45mMultiple Airlines
Sun 21/1216:00SLU - LGW
2 stops22h 35mMultiple Airlines
Deal found 10/12£907
Mon 29/1209:00LHR - UVF
2 stops59h 20mAir Canada
Fri 16/117:15UVF - LHR
1 stop14h 05mAir Canada
Deal found 11/12£1,043
Wed 17/1209:40LHR - SLU
1 stop32h 55mMultiple Airlines
Sun 21/1212:10SLU - LHR
1 stop13h 15mMultiple Airlines
Deal found 10/12£1,055
Fri 12/1208:00LHR - SLU
1 stop32h 05mMultiple Airlines
Thu 18/1215:20SLU - LHR
1 stop14h 35mMultiple Airlines
Deal found 11/12£1,069
Mon 29/1212:15LHR - UVF
2 stops30h 35mIcelandair
Tue 13/115:40UVF - LHR
2 stops39h 10mIcelandair
Deal found 11/12£1,072
Tue 30/1209:00LHR - UVF
2 stops35h 20mAir Canada
Wed 7/117:15UVF - LHR
2 stops47h 20mAir Canada
Deal found 10/12£1,092
Wed 17/1210:05LGW - UVF
Nonstop9h 05mBritish Airways
Thu 22/122:05UVF - LGW
Nonstop8h 15mBritish Airways
Deal found 11/12£1,096
Mon 29/1218:00LHR - SLU
2 stops29h 00mMultiple Airlines
Tue 13/107:30SLU - LHR
2 stops23h 50mMultiple Airlines
Deal found 11/12£1,097
Sat 13/1219:10LHR - UVF
2 stops24h 43mAmerican Airlines
Tue 30/1216:54UVF - LHR
1 stop15h 11mAmerican Airlines
Deal found 11/12£1,114
Wed 17/1208:15LGW - SLU
3 stops38h 45mMultiple Airlines
Sun 21/1216:00SLU - LGW
2 stops22h 35mMultiple Airlines
Deal found 10/12£1,114
Tue 30/1213:20LHR - SLU
1 stop29h 55mMultiple Airlines
Wed 7/115:45SLU - LHR
1 stop14h 10mMultiple Airlines
Deal found 10/12£1,114

Find flight deals from United Kingdom to Saint Lucia

Keep the following information in mind while searching for United Kingdom to Saint Lucia flight deals. Data was last updated 12 December 2025.

Round-trip from

£673

One-way from

£432

Popular in

April

Cheapest in

November

Average price

£989

Good round-trip deal

£650 or less

Good one-way deal

£433 or less
2/3-10/3
  • 2/3-10/3
  • 3 total stops
  • 30h 45m total
  • United Kingdom to Saint Lucia
Search Deals
British Airways
  • British Airways
  • 20/1
  • Nonstop
  • 9h 05m total
  • United Kingdom to Saint Lucia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£85 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease (£52 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from United Kingdom to Saint Lucia.
Search Deals
Price to beat on a one-way flight from United Kingdom to Saint Lucia.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Saint Lucia 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 12 December 2025.
Use the filters below to find and compare flights from the United Kingdom to Saint Lucia that are best for you.

Fly from

United Kingdom

Fly to

Saint Lucia

Route

Depart

Return

Price

ManchesterCastries

MAN - SLU

MANSLU

Manchester

Mon 2/3

09:00-17:30

1 stop12h 30m

Castries George F. L. Charle

Tue 10/3

15:45-14:00

2 stops18h 15m

£673

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Mon 16/2

12:30-14:50

2 stops30h 20m

Castries Hewanorra

Mon 23/2

15:50-07:30

2 stops59h 40m

£685

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Sun 25/1

12:30-13:46

2 stops29h 16m

Castries Hewanorra

Sun 1/2

17:02-07:30

2 stops34h 28m

£686

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Thu 22/1

11:20-13:46

2 stops30h 26m

Castries Hewanorra

Sun 1/2

17:02-07:30

2 stops34h 28m

£691

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Mon 26/1

11:20-16:02

2 stops32h 42m

Castries Hewanorra

Thu 12/2

15:50-07:30

2 stops35h 40m

£691

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Thu 15/1

10:00-15:05

Nonstop9h 05m

Castries Hewanorra

Fri 23/1

20:50-09:05

Nonstop8h 15m

£703

LondonCastries

LGW - UVF

LGWUVF

London Gatwick

Mon 11/5

11:15-15:05

Nonstop8h 50m

Castries Hewanorra

Thu 21/5

22:05-11:25

Nonstop8h 20m

£704

LondonCastries

LHR - SLU

LHRSLU

London Heathrow

Sun 15/3

06:50-19:00

2 stops16h 10m

Castries George F. L. Charle

Sun 22/3

15:45-09:55

1 stop14h 10m

£706

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Mon 12/1

15:50-15:05

1 stop27h 15m

Castries Hewanorra

Thu 22/1

16:25-07:50

1 stop35h 25m

£710

LondonCastries

LHR - UVF

LHRUVF

London Heathrow

Sun 11/1

20:00-15:05

2 stops23h 05m

Castries Hewanorra

Tue 20/1

16:25-06:55

2 stops34h 30m

£710

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Saint Lucia

Have a flexible travel schedule? Discover the best time to fly to Saint Lucia from United Kingdom 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 the United Kingdom to Saint Lucia

What is the cheapest month to book a flight from United Kingdom to Saint Lucia?

Currently, March is the cheapest month in which you can book a flight from United Kingdom to Saint Lucia (average of £285). Flying from United Kingdom to Saint Lucia in July is currently the most expensive (average of £583). 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.

What is the cheapest time of day to fly from GB to LC?

Find hourly flight availability from United Kingdom to Saint Lucia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.

It’s typically best to fly out from United Kingdom to Saint Lucia in the morning. Doing so could potentially save you 35% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from United Kingdom to Saint Lucia?

Use this chart to determine the cheapest time to fly return from United Kingdom to Saint Lucia. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their United Kingdom to Saint Lucia flight should consider departing on Tuesday mornings when fares are most often at their lowest. Thursday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

How often are flights from the United Kingdom to Saint Lucia delayed?

About 23% of weekly flights between United Kingdom and Saint Lucia have experienced delays in the past year, with the average delay time being 129 minutes.

What is the most punctual flight time for the United Kingdom to Saint Lucia flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Saint Lucia flights?

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 16% of flights being delayed.

Reviews of airlines servicing Saint Lucia

Get insights into the airlines that provide service to Saint Lucia. 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 Saint Lucia. Reviews last updated 12 December 2025.
Read through reviews of airlines operating flights from the United Kingdom to Saint Lucia, such as KLM, Finnair, andVirgin Atlantic. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,432 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Finnair
7.6
Good
1,334 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Virgin Atlantic
7.5
Good
675 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
British Airways
6.7
Okay
7,571 reviews
KLM
7.7
Good
1,432 reviews
Check prices

Entertainment

7.1

Food

7.2

Boarding

7.8

Comfort

7.6

Crew

8.3

Overall

7.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Saint Lucia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from United Kingdom to Saint Lucia?

    American Airlines, British Airways, and Delta can get you from United Kingdom to Saint Lucia in just under 9h 05m. Your travel time can differ by up to 21h 15m. There are 4223 mi between United Kingdom and Saint Lucia. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from United Kingdom to Saint Lucia that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Saint Lucia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Saint Lucia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Saint Lucia.

  • Can I find deals for business class flights from United Kingdom to Saint Lucia?

    Yes. Cheapflights offers flight deals from United Kingdom to Saint Lucia 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 United Kingdom to Saint Lucia?

    Currently, March is the cheapest month in which you can book a flight from United Kingdom to Saint Lucia (average of £285). Flying from United Kingdom to Saint Lucia in July is currently the most expensive (average of £583). 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 United Kingdom to Saint Lucia

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Bridgetown flights
Heathrow to Montego Bay flights
Heathrow to Kingston flights
Heathrow to Punta Cana flights
London City to Bridgetown flights
Gatwick to Castries flights
Heathrow to Nassau flights
Manchester to Montego Bay flights
Gatwick to Bridgetown flights
Gatwick to Kingston flights
London City to Kingston flights
Gatwick to Punta Cana flights
Heathrow to St. George's flights
Heathrow to Castries flights
Heathrow to Port of Spain flights
London City to Montego Bay flights
Manchester to Bridgetown flights
Gatwick to St. John's flights
Gatwick to Montego Bay flights
Gatwick to Luis Munoz Marin Intl flights
Heathrow to Luis Munoz Marin Intl flights
Heathrow to St. John's flights
Gatwick to Port of Spain flights
Gatwick to St. George's flights
Stansted to Luis Munoz Marin Intl flights
Heathrow to Santo Domingo flights
Stansted to Punta Cana flights
London City to Punta Cana flights
Gatwick to Santo Domingo flights
London City to Castries flights
Gatwick to Nassau flights
Heathrow to Road Town flights
Heathrow to Kingstown flights
Heathrow to Roseau flights
Heathrow to Simpson Bay flights
Stansted to Bridgetown flights
Luton to Montego Bay flights
Luton to Punta Cana flights
Stansted to Montego Bay flights
Gatwick to Havana flights
Heathrow to George Town flights
Heathrow to Providenciales flights
Heathrow to Basseterre flights
London City to Luis Munoz Marin Intl flights
Heathrow to Castries flights
Stansted to Kingston flights
Gatwick to Road Town flights
Stansted to Santo Domingo flights
Edinburgh to Bridgetown flights

Top 6 airlines flying from United Kingdom to Saint Lucia

Discover the top 6 airlines that operate flights from United Kingdom to Saint Lucia. 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
TUI AirwaysCheapest£283Average£405FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
Virgin AtlanticCheapest£373Average£519FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£451Average£684FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapest£520Average£667FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
FinnairCheapest£589Average£808FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£684Average£1,428FlexibilityNo 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 United Kingdom to Saint Lucia?

Deals for United Kingdom to Saint Lucia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Saint Lucia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from United Kingdom to Saint Lucia for you. Better yet — we are completely free to use.

Can Cheapflights find flights from United Kingdom to Saint Lucia with no change fees?

Certainly. Search results for flights to Saint Lucia from United Kingdom 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 from United Kingdom to Saint Lucia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Saint Lucia from United Kingdom today and book when prices fit your budget.

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