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Cheap flights from Saint Lucia to London from £320

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
UVF — LON
27 2月 — 6 3月1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Saint Lucia to London

Enter your travel dates to find the best prices.

Cheapest flights from Saint Lucia to London
Explore the most affordable flight options available from Saint Lucia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 1月 2026.

週二 28/720:30
UVF
-
LGW
Nonstop8h 20m
British Airways
週六 12/911:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 26/1£731
週一 2/217:21
UVF
-
LGW
2 stops42h 49m
Multiple Airlines
週一 9/210:20
LGW
-
UVF
2 stops33h 33m
Multiple Airlines
Deal found 26/1£762
週五 6/217:15
UVF
-
LHR
1 stop14h 05m
Air Canada
週一 2/314:50
LHR
-
UVF
2 stops53h 30m
Air Canada
Deal found 25/1£764
週日 26/416:05
UVF
-
LHR
2 stops33h 25m
Air Canada
週日 3/514:05
LHR
-
UVF
2 stops53h 00m
Air Canada
Deal found 26/1£775
週一 9/316:23
UVF
-
LHR
2 stops36h 42m
Multiple Airlines
週一 16/308:50
LHR
-
UVF
2 stops33h 28m
Multiple Airlines
Deal found 25/1£777
週六 31/114:29
UVF
-
LHR
2 stops16h 56m
Multiple Airlines
週六 7/216:20
LHR
-
UVF
2 stops51h 33m
Multiple Airlines
Deal found 25/1£778
週二 10/220:50
UVF
-
LGW
Nonstop8h 15m
British Airways
週日 26/411:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 26/1£780
週四 5/317:15
UVF
-
LHR
1 stop33h 15m
Air Canada
週四 30/408:30
LHR
-
UVF
1 stop34h 35m
Air Canada
Deal found 24/1£788
週四 5/317:15
UVF
-
LHR
1 stop14h 05m
Air Canada
週一 27/417:50
LHR
-
UVF
2 stops50h 30m
Air Canada
Deal found 25/1£788
週五 28/820:50
UVF
-
LGW
Nonstop8h 20m
British Airways
週一 7/911:15
LGW
-
UVF
Nonstop8h 50m
British Airways
Deal found 25/1£791
週三 11/316:15
UVF
-
LHR
1 stop15h 05m
Air Canada
週三 18/318:00
LHR
-
UVF
1 stop25h 25m
Air Canada
Deal found 25/1£792
週四 26/217:23
UVF
-
LHR
2 stops34h 42m
Multiple Airlines
週四 5/307:50
LHR
-
UVF
2 stops36h 08m
Multiple Airlines
Deal found 27/1£793

Find flight deals from Saint Lucia to London

Keep the following information in mind while searching for Saint Lucia to London flight deals. Data was last updated 28 1月 2026.

Round-trip from

£764

One-way from

£320

Good round-trip deal

£838 or less

Good one-way deal

£505 or less
Air Canada
  • Air Canada
  • 6/2-2/3
  • 3 total stops
  • 67h 35m total
  • Saint Lucia to London
Search Deals
5/2
  • 5/2
  • 2 total stops
  • 31h 40m total
  • Saint Lucia to London
Search Deals
Price to beat on a round-trip flight from Saint Lucia to London (LON).
Search Deals
Price to beat on a one-way flight from Saint Lucia to London (LON).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Saint Lucia to London 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 28 1月 2026.
Use the filters below to find and compare flights from Saint Lucia to London that are best for you.

Fly from

Saint Lucia

Fly to

London

Route

Depart

Return

Price

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

週二 10/2

20:50-09:05

Nonstop8h 15m

London Gatwick

週日 26/4

11:15-15:05

Nonstop8h 50m

£780

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

週四 5/3

17:15-06:30

1 stop33h 15m

London Heathrow

週四 30/4

08:30-14:05

1 stop34h 35m

£788

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

週四 5/3

17:15-20:35

2 stops23h 20m

London Heathrow

週一 27/4

17:50-15:20

2 stops50h 30m

£788

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

週四 26/2

17:23-08:05

2 stops34h 42m

London Heathrow

週四 5/3

07:50-15:58

2 stops36h 08m

£793

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

週三 11/3

16:15-11:20

1 stop15h 05m

London Heathrow

週三 18/3

13:25-15:25

2 stops30h 00m

£798

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

週一 9/3

16:23-21:40

1 stop25h 17m

London Heathrow

週一 16/3

12:20-14:18

1 stop29h 58m

£799

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

週日 12/4

16:05-06:30

2 stops33h 25m

London Heathrow

週四 30/4

12:40-14:05

2 stops30h 25m

£806

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

週五 17/7

20:50-10:10

Nonstop8h 20m

London Gatwick

週五 31/7

11:15-15:05

Nonstop8h 50m

£817

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

週二 12/5

20:30-09:50

Nonstop8h 20m

London Gatwick

週二 30/6

11:15-15:05

Nonstop8h 50m

£826

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

週二 10/2

16:05-08:50

2 stops36h 45m

London Gatwick

週日 26/4

11:15-15:05

Nonstop8h 50m

£836

Flights are sorted by cheapest return flights first.

Deals found on 26/1

Showing 1-10 of 57 results
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Best time to book a flight from Saint Lucia to London

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

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

Currently, September is the cheapest month in which you can book a flight from Saint Lucia to London (average of £412). Flying from Saint Lucia to London in November is currently the most expensive (average of £689). 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 LC to LON?

Find hourly flight availability from Saint Lucia to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 1月 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Saint Lucia to London as you normally would.

Weekly flight availability from Saint Lucia to London

Explore weekly flight availability from Saint Lucia to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 28 1月 2026.

The most flights from LC0 to LON are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 28 1月 2026.
Read through reviews of airlines operating flights from Saint Lucia to London, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,704 reviews
Check prices

Boarding

6.9

Crew

7.6

Food

6.4

Comfort

6.8

Overall

6.7

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,704 reviews
British Airways
6.7
Okay
7,704 reviews
Check prices

Boarding

6.9

Crew

7.6

Food

6.4

Comfort

6.8

Overall

6.7

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

Related info for your journey

Find useful and relevant information for your journey from Saint Lucia to London. 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 Saint Lucia to London?

    There are many flights that can get you from Saint Lucia to London in 8h 15m. Fly via British Airways or Air Canada to get the fastest option. The distance from Saint Lucia to London is about 4223 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Saint Lucia to London?

    Most travelers choose Castries Hewanorra - London Gatwick, Castries Hewanorra - London Heathrow or Castries George F. L. Charle - London Heathrow when deciding on the best route from Saint Lucia to London.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Saint Lucia to London 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 Saint Lucia to London?

    Currently, September is the cheapest month in which you can book a flight from Saint Lucia to London (average of £412). Flying from Saint Lucia to London in November is currently the most expensive (average of £689). 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Milton Keynes
Luton
Croydon
Wembley
Gatwick
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Hounslow
Ilford
Brentford
Hayes
Watford
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Kingston upon Thames
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Romford
Ipswich

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Alternative routes for Saint Lucia to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Saint Lucia to London

Discover the top airline that operate flights from Saint Lucia to London. 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 28 1月 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£645Average£788FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Saint Lucia to London?

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

Millions of users choose and trust Cheapflights to book the best flight deals from Saint Lucia to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes! Cheapflights helps users easily find flights from Saint Lucia to London with no change fees.

Can Cheapflights notify me if prices for flights from Saint Lucia to London become cheaper?

Yes, Cheapflights offers price alerts on Saint Lucia to London flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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