What are the cheapest airlines to fly from Saint Lucia to London one-way?

To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at £471. JetBlue flights start at £511 while deals on Air Canada start at £531 one-way.

What is the cheapest day to fly from Saint Lucia to London?

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

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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.

What is the cheapest day to fly round-trip from Saint Lucia to London?

Monday is generally a great day to depart. Flying on this day could help you save up to 9%.

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.

£965+ Flights from Saint Lucia to London

Cheap flight deals from Saint Lucia to London

Round-trip from	£687
One-way from	£454
Good round-trip deal	£685 or less
Good one-way deal	£386 or less

British Airways
23/10-20/11
Nonstop
17h 25m total
Saint Lucia to London

Search Deals

20/7
3 total stops
37h 10m 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

Find flight deals from Saint Lucia to London

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 27 June 2025.

Thu 23/1022:05UVF - LGW

Nonstop8h 20mBritish Airways

Thu 20/1110:05LGW - UVF

Nonstop9h 05mBritish Airways

Deal found 25/6£687

Sun 13/717:31UVF - LHR

2 stops31h 59mIcelandair

Sun 27/708:25LHR - UVF

2 stops36h 46mIcelandair

Deal found 25/6£808

Fri 4/717:40UVF - LGW

2 stops34h 55mIcelandair

Tue 12/812:10LGW - UVF

2 stops33h 01mIcelandair

Deal found 25/6£814

Sun 10/814:35UVF - LGW

2 stops36h 45mMultiple Airlines

Sun 17/811:15LGW - UVF

Nonstop8h 45mMultiple Airlines

Deal found 26/6£900

Thu 23/1015:40UVF - LGW

2 stops33h 55mFinnair

Thu 20/1111:20LGW - UVF

2 stops31h 40mFinnair

Deal found 25/6£916

Mon 18/817:30SLU - LGW

3 stops31h 50mMultiple Airlines

Sun 21/908:15LGW - SLU

3 stops36h 35mMultiple Airlines

Deal found 25/6£938

Mon 1/1217:15UVF - LGW

2 stops34h 15mAmerican Airlines

Wed 24/1211:20LGW - UVF

2 stops29h 45mAmerican Airlines

Deal found 25/6£944

Fri 11/715:10UVF - LHR

1 stop15h 40mAir Canada

Mon 28/708:30LHR - UVF

1 stop34h 45mAir Canada

Deal found 25/6£967

Sat 9/818:20SLU - LHR

3 stops33h 45mMultiple Airlines

Sat 16/807:40LHR - SLU

3 stops33h 05mMultiple Airlines

Deal found 25/6£1,043

Sun 30/1116:35UVF - LHR

1 stop14h 55mAmerican Airlines

Wed 17/1219:05LHR - UVF

2 stops23h 40mAmerican Airlines

Deal found 25/6£1,107

Fri 4/715:10UVF - LHR

2 stops19h 45mMultiple Airlines

Wed 13/807:40LHR - UVF

3 stops35h 05mMultiple Airlines

Deal found 25/6£1,128

Sat 12/716:22UVF - LHR

1 stop14h 03mUnited Airlines

Fri 25/715:20LHR - UVF

2 stops29h 10mUnited Airlines

Deal found 25/6£1,181

Best flights from Saint Lucia to London
Discover carefully curated flight deals from Saint Lucia to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 June 2025.

Thu 23/1022:05UVF - LGW

Nonstop8h 20mBritish Airways

Thu 20/1110:05LGW - UVF

Nonstop9h 05mBritish Airways

Deal found 25/6£687

Sun 13/717:31UVF - LHR

2 stops31h 59mIcelandair

Sun 27/708:25LHR - UVF

2 stops36h 46mIcelandair

Deal found 25/6£808

Sun 10/814:35UVF - LGW

2 stops36h 45mMultiple Airlines

Sun 17/811:15LGW - UVF

Nonstop8h 45mMultiple Airlines

Deal found 26/6£900

Thu 23/1015:40UVF - LGW

2 stops33h 55mFinnair

Thu 20/1111:20LGW - UVF

2 stops31h 40mFinnair

Deal found 25/6£916

Mon 1/1217:15UVF - LGW

2 stops34h 15mAmerican Airlines

Wed 24/1211:20LGW - UVF

2 stops29h 45mAmerican Airlines

Deal found 25/6£944

Fri 11/715:10UVF - LHR

1 stop15h 40mAir Canada

Mon 28/708:30LHR - UVF

1 stop34h 45mAir Canada

Deal found 25/6£967

Sat 12/716:22UVF - LHR

1 stop14h 03mUnited Airlines

Fri 25/715:20LHR - UVF

2 stops29h 10mUnited Airlines

Deal found 25/6£1,181

Thu 17/714:35UVF - LHR

2 stops64h 30mWestJet

Wed 30/714:10LHR - UVF

2 stops28h 35mWestJet

Deal found 25/6£1,339

Sat 9/815:40UVF - LGW

2 stops37h 20mDelta

Sat 16/812:00LGW - UVF

2 stops31h 15mDelta

Deal found 25/6£1,372

Sun 13/717:31UVF - LGW

2 stops35h 04mIcelandair

Sun 27/712:10LGW - UVF

2 stops33h 01mIcelandair

Deal found 25/6£832

Mon 18/817:30SLU - LGW

3 stops31h 50mMultiple Airlines

Sun 21/908:15LGW - SLU

3 stops36h 35mMultiple Airlines

Deal found 25/6£938

Sun 30/1116:35UVF - LHR

1 stop14h 55mAmerican Airlines

Wed 17/1219:05LHR - UVF

2 stops23h 40mAmerican Airlines

Deal found 25/6£1,107

Last-minute flights from Saint Lucia to London
Discover last-minute flight deals from Saint Lucia to London. Data last updated 27 June 2025 and is based on user searches.

Thu 3/715:20SLU - LGW

3 stops34h 00mMultiple Airlines

Wed 13/810:45LGW - SLU

3 stops31h 25mMultiple Airlines

Deal found 25/6£1,135

Thu 3/715:36UVF - LHR

1 stop16h 54mDelta

Mon 11/810:55LHR - UVF

2 stops32h 20mDelta

Deal found 25/6£1,403

Fri 4/717:40UVF - LGW

2 stops34h 55mIcelandair

Tue 12/812:10LGW - UVF

2 stops33h 01mIcelandair

Deal found 25/6£814

Fri 4/717:40UVF - LHR

2 stops37h 15mIcelandair

Tue 12/821:25LHR - UVF

2 stops47h 46mIcelandair

Deal found 25/6£1,093

Fri 4/715:10UVF - LHR

2 stops34h 20mAir Canada

Mon 11/809:30LHR - UVF

2 stops33h 45mAir Canada

Deal found 25/6£1,118

Fri 4/715:10UVF - LHR

2 stops19h 45mMultiple Airlines

Wed 13/807:40LHR - UVF

3 stops35h 05mMultiple Airlines

Deal found 25/6£1,128

Fri 4/712:35SLU - LHR

3 stops27h 25mMultiple Airlines

Tue 12/806:30LHR - SLU

3 stops32h 00mMultiple Airlines

Deal found 25/6£1,397

Sat 5/716:22UVF - LHR

1 stop14h 03mUnited Airlines

Fri 15/811:05LHR - UVF

1 stop33h 25mUnited Airlines

Deal found 25/6£1,288

Sun 6/714:35UVF - LGW

2 stops38h 15mMultiple Airlines

Wed 13/809:40LGW - UVF

1 stop33h 05mMultiple Airlines

Deal found 25/6£912

Mon 7/722:05UVF - LGW

Nonstop8h 20mBritish Airways

Tue 18/1110:00LGW - UVF

Nonstop9h 05mBritish Airways

Deal found 25/6£882

Mon 7/715:20UVF - LHR

1 stop16h 10mAmerican Airlines

Tue 18/1118:00LHR - UVF

2 stops25h 00mAmerican Airlines

Deal found 25/6£1,392

Mon 7/715:00UVF - LGW

2 stops34h 35mAmerican Airlines

Tue 18/1111:20LGW - UVF

2 stops29h 40mAmerican Airlines

Deal found 25/6£1,402

One-way flights from Saint Lucia to London
Search for one-way flight options from Saint Lucia to London. Find affordable one-way fares based on user searches. Data last updated 27 June 2025.

Sun 20/712:10SLU - LGW

3 stops37h 10mMultiple Airlines

Deal found 26/6£454

Sat 1/1118:20SLU - LHR

3 stops32h 50mMultiple Airlines

Deal found 25/6£465

Sat 1/1112:52UVF - LHR

2 stops41h 23mUnited Airlines

Deal found 25/6£471

Sun 20/717:31UVF - LHR

1 stop34h 59mJetBlue

Deal found 26/6£511

Tue 19/815:10UVF - LHR

1 stop15h 40mAir Canada

Deal found 27/6£531

Sun 20/720:25UVF - LGW

Nonstop8h 20mBritish Airways

Deal found 26/6£552

Thu 21/814:35UVF - LGW

2 stops25h 50mMultiple Airlines

Deal found 25/6£581

Thu 21/814:35UVF - LHR

2 stops22h 10mMultiple Airlines

Deal found 25/6£602

Thu 21/814:35UVF - LCY

3 stops35h 40mMultiple Airlines

Deal found 25/6£663

Sat 1/1112:52UVF - LCY

2 stops19h 48mUnited Airlines

Deal found 25/6£1,052

Wed 20/815:35UVF - LHR

1 stop16h 55mDelta

Deal found 25/6£1,055

Wed 20/815:33UVF - LGW

2 stops18h 07mIcelandair

Deal found 25/6£1,805

Cheapflights Fare Finder

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

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Thu 23/10

22:05-11:25

Nonstop8h 20m

London Gatwick

Thu 20/11

10:05-15:10

Nonstop9h 05m

£687

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 13/7

17:31-06:30

2 stops31h 59m

London Heathrow

Sun 27/7

08:25-16:11

2 stops36h 46m

£808

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Sun 13/7

17:31-09:35

2 stops35h 04m

London Gatwick

Sun 27/7

12:10-16:11

2 stops33h 01m

£832

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Sun 10/8

14:35-08:20

2 stops36h 45m

London Gatwick

Sun 17/8

11:15-15:00

Nonstop8h 45m

£900

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Thu 23/10

15:40-06:35

2 stops33h 55m

London Gatwick

Thu 20/11

11:20-15:00

2 stops31h 40m

£916

CastriesLondon

SLU - LGW

SLULGW

Castries George F. L. Charle

Mon 18/8

17:30-06:20

3 stops31h 50m

London Gatwick

Sun 21/9

08:15-15:50

3 stops36h 35m

£938

CastriesLondon

UVF - LGW

UVFLGW

Castries Hewanorra

Mon 1/12

17:15-07:30

2 stops34h 15m

London Gatwick

Wed 24/12

11:20-13:05

2 stops29h 45m

£944

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Fri 11/7

15:10-11:50

1 stop15h 40m

London Heathrow

Mon 28/7

08:30-14:15

1 stop34h 45m

£967

CastriesLondon

SLU - LHR

SLULHR

Castries George F. L. Charle

Sat 9/8

18:20-09:05

3 stops33h 45m

London Heathrow

Sat 16/8

07:40-11:45

3 stops33h 05m

£1,043

CastriesLondon

UVF - LHR

UVFLHR

Castries Hewanorra

Sun 30/11

16:35-11:30

1 stop14h 55m

London Heathrow

Wed 17/12

19:05-14:45

2 stops23h 40m

£1,107

Flights are sorted by cheapest return flights first.

Deals found on 26/6

Showing 1-10 of 28 results

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, January is the cheapest month in which you can book a flight from Saint Lucia to London (average of £112). Flying from Saint Lucia to London in August is currently the most expensive (average of £164). 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?

Unlike in the morning, when flights are generally more expensive, you can save up to 11% on flights from Saint Lucia to London by exploring options for tickets at midday.

Reviews of airlines servicing London

Read through reviews of airlines operating flights from Saint Lucia to London, such as Delta, Finnair, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

7,963 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,298 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,838 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

JetBlue

7.3

Good

2,922 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines to fly from Saint Lucia to London one-way?
To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at £471. JetBlue flights start at £511 while deals on Air Canada start at £531 one-way.
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, January is the cheapest month in which you can book a flight from Saint Lucia to London (average of £112). Flying from Saint Lucia to London in August is currently the most expensive (average of £164). 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

Croydon

Milton Keynes

Hounslow

Deal

Gatwick

Slough

Luton

Wembley

Crawley

Eastbourne

Ilford

Watford

Southend-on-Sea

Folkestone

Ipswich

Winchester

Hayes

Maidstone

Guildford

Chichester

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Saint Lucia to London

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£560	Average£683	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£577	Average£720	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Saint Lucia to London 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 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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Cheap flights from Saint Lucia to London from £454

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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 27 June 2025.

Round-trip from

One-way from

Good round-trip deal

Good one-way deal

Find flight deals from Saint Lucia to London

Cheapest flights from Saint Lucia to LondonExplore 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 27 June 2025.

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 27 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Saint Lucia to London that are best for you.

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.

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?

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 27 June 2025.

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 27 June 2025.

Read through reviews of airlines operating flights from Saint Lucia to London, such as Delta, Finnair, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines to fly from Saint Lucia to London one-way?

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

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

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

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

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

Travelling to a place near Saint Lucia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Saint Lucia to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Saint Lucia to London

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 Saint Lucia to London?

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

Can Cheapflights 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?

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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 27 June 2025.