Cheap flights from Saint Lucia to London from £407

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Saint Lucia to London departing on 21/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Saint Lucia to London

Recent return flight deals from Saint Lucia to London

Enter your travel dates to find the best prices.
Air Canada Logo
16:20 - 06:30
UVF
-
LHR
33h 10m
2 stops
Air Canada Logo
08:40 - 15:25
LHR
-
UVF
35h 45m
2 stops
£723Air Canada
Wed, 22 Apr - Wed, 29 Apr
Air Canada Logo
16:20 - 06:35
UVF
-
LHR
33h 15m
1 stop
Air Canada Logo
08:40 - 15:25
LHR
-
UVF
35h 45m
2 stops
£730Air Canada
Wed, 22 Apr - Wed, 29 Apr
Air Canada Logo
16:20 - 09:35
UVF
-
LHR
36h 15m
1 stop
Air Canada Logo
12:05 - 15:25
LHR
-
UVF
32h 20m
1 stop
£743Air Canada
Wed, 22 Apr - Wed, 29 Apr
British Airways Logo
20:30 - 09:50
UVF
-
LGW
8h 20mdirect
British Airways Logo
11:15 - 15:05
LGW
-
UVF
8h 50mdirect
£762British Airways
Sat, 9 May - Sun, 13 Sep
British Airways Logo
20:50 - 10:10
UVF
-
LGW
8h 20mdirect
British Airways Logo
11:15 - 15:05
LGW
-
UVF
8h 50mdirect
£767British Airways
Fri, 17 Jul - Fri, 31 Jul
Air Canada Logo
16:05 - 06:30
UVF
-
LHR
33h 25m
2 stops
Air Canada Logo
14:10 - 14:05
LHR
-
UVF
52h 55m
2 stops
£776Air Canada
Sun, 12 Apr - Wed, 13 May
Multiple Airlines Logo
16:15 - 06:20
UVF
-
LGW
33h 05m
2 stops
Multiple Airlines Logo
19:25 - 13:40
LGW
-
UVF
47h 15m
3 stops
£795Multiple Airlines
Thu, 30 Apr - Tue, 5 May
Multiple Airlines Logo
12:41 - 12:40
UVF
-
LHR
18h 59m
2 stops
Multiple Airlines Logo
22:00 - 14:15
LHR
-
UVF
45h 15m
2 stops
£823Multiple Airlines
Sat, 9 May - Sun, 13 Sep
Delta Logo
15:18 - 16:40
UVF
-
LCY
20h 22m
2 stops
Delta Logo
09:20 - 14:05
LCY
-
UVF
33h 45m
2 stops
£1,602Delta
Mon, 6 Apr - Tue, 12 May
Delta Logo
15:22 - 16:40
UVF
-
LCY
20h 18m
2 stops
Delta Logo
10:00 - 14:02
LCY
-
UVF
33h 02m
2 stops
£1,602Delta
Mon, 20 Apr - Mon, 27 Apr

Air Canada flights from Saint Lucia to London

Our best Air Canada deals on Saint Lucia to London flight tickets
Air Canada
22 Apr
UVF16:20Castries Hewanorra
33h 10m
2 stops
LHR06:30London Heathrow
29 Apr
LHR08:40London Heathrow
35h 45m
2 stops
UVF15:25Castries Hewanorra
£723
Air Canada
22 Apr
UVF16:20Castries Hewanorra
33h 15m
1 stop
LHR06:35London Heathrow
29 Apr
LHR08:40London Heathrow
35h 45m
2 stops
UVF15:25Castries Hewanorra
£730
Air Canada
22 Apr
UVF16:20Castries Hewanorra
36h 15m
1 stop
LHR09:35London Heathrow
29 Apr
LHR12:05London Heathrow
32h 20m
1 stop
UVF15:25Castries Hewanorra
£743

American Airlines flights from Saint Lucia to London

Our best American Airlines deals on Saint Lucia to London flight tickets
American Airlines
26 Jul
UVF14:58Castries Hewanorra
20h 22m
2 stops
LHR16:20London Heathrow
9 Aug
LHR18:05London Heathrow
25h 10m
2 stops
UVF14:15Castries Hewanorra
£1,107
American Airlines
26 Jul
UVF15:10Castries Hewanorra
16h 40m
1 stop
LHR12:50London Heathrow
9 Aug
LHR18:05London Heathrow
25h 10m
2 stops
UVF14:15Castries Hewanorra
£1,146
American Airlines
21 Mar
UVF13:07Castries Hewanorra
16h 33m
1 stop
LHR09:40London Heathrow
14 Apr
LHR18:05London Heathrow
24h 40m
2 stops
UVF13:45Castries Hewanorra
£1,444

momondo 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, momondo users made 279,928 searches. Data last updated 8 March 2026.
Use the filters below to find and compare flights from Saint Lucia to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Wed 22/4

16:20-06:30

2 stops33h 10m

London Heathrow

Wed 29/4

08:40-15:25

2 stops35h 45m

£723

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Wed 22/4

16:20-06:35

1 stop33h 15m

London Heathrow

Wed 29/4

08:40-15:25

2 stops35h 45m

£730

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Wed 22/4

16:20-09:35

1 stop36h 15m

London Heathrow

Wed 29/4

12:05-15:25

1 stop32h 20m

£743
Fastest return journey

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Sat 9/5

20:30-09:50

Nonstop8h 20m

London Gatwick

Sun 13/9

11:15-15:05

Nonstop8h 50m

£762

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Fri 17/7

20:50-10:10

Nonstop8h 20m

London Gatwick

Fri 31/7

11:15-15:05

Nonstop8h 50m

£767

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 12/4

16:05-06:30

2 stops33h 25m

London Heathrow

Wed 13/5

14:10-14:05

2 stops52h 55m

£776

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Thu 30/4

16:15-06:20

2 stops33h 05m

London Gatwick

Tue 5/5

19:25-13:40

3 stops47h 15m

£795

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sat 9/5

12:41-12:40

2 stops18h 59m

London Heathrow

Sun 13/9

22:00-14:15

2 stops45h 15m

£823

CastriesLondon

UVF - LCY

UVFLCY

Castries Hewanorra

Mon 6/4

15:18-16:40

2 stops20h 22m

London City

Tue 12/5

09:20-14:05

2 stops33h 45m

£1,602

CastriesLondon

UVF - LCY

UVFLCY

Castries Hewanorra

Mon 20/4

15:22-16:40

2 stops20h 18m

London City

Mon 27/4

10:00-14:02

2 stops33h 02m

£1,602

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Saint Lucia to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest Saint Lucia to London flight route?

Fly from Castries Hewanorra to London Gatwick for the best Saint Lucia - London flight prices

What cabin class options are available on Saint Lucia to London flights?

There are 2 cabin classes available to choose from on Saint Lucia to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Saint Lucia to London flights?

You could potentially save up to 4% on your flight if you consider stops on a Saint Lucia to London flight.

Cheap Saint Lucia to London flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Saint Lucia to London

Best price found

£522

Fastest flight time

8h 15m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in London

6 airports
The best one-way flight to London from Saint Lucia in the past 72 hours is £522. The best return flight deal from Saint Lucia to London found on momondo in the last 72 hours is £855.
The fastest flight from Saint Lucia to London takes 8h 15m
Direct flights go from Saint Lucia to London on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. Airline offering direct flights is British Airways..
There are 6 airports in London. From Saint Lucia there are direct flights to London Gatwick (LGW).
  • When did momondo last update prices for flights from Saint Lucia to London?

    Prices for flights from Saint Lucia to London are updated daily.

  • How many operators does momondo search for flights from Saint Lucia to London?

  • How old do you have to be to fly from Saint Lucia to London?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Saint Lucia to London.

  • What documentation or ID do you need to fly to London?

    The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Saint Lucia to London?

Best airlines flying from Saint Lucia to London

Compare and see reviews for airlines that fly from Saint Lucia to London with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £678Free CancellationRating
6.7
7,779 reviews
Search British Airways flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Wembley
Guildford
Chelmsford
Hayes
Dover
Folkestone
Worthing
Colchester
Bedford
Ramsgate

Why use momondo?

Why should I use momondo to find a flight deal from Saint Lucia to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Saint Lucia to London . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Saint Lucia to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from Saint Lucia with this policy.

How can momondo help me find flights from Saint Lucia to London?

Once all potential Saint Lucia to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Saint Lucia to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Saint Lucia to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Tue 7/4
Tue 14/4

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London