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Cheap flights from London Heathrow Airport to Sierra Leone 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — FNA
22 May — 29 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Sierra Leone

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Sierra Leone
Explore the most affordable flight options available from Heathrow to Sierra Leone. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 April 2026.

Thu 1/1018:40
LHR
-
FNA
2 stops23h 45m
SWISS
Mon 16/1119:45
FNA
-
LHR
3 stops17h 15m
SWISS
Deal found 22/4£698
Tue 24/1120:05
LHR
-
FNA
2 stops22h 35m
SWISS
Tue 30/318:45
FNA
-
LHR
3 stops15h 35m
SWISS
Deal found 19/4£705
Thu 1/1006:50
LHR
-
FNA
1 stop11h 25m
Multiple Airlines
Mon 16/1119:45
FNA
-
LHR
3 stops15h 30m
Multiple Airlines
Deal found 22/4£709
Mon 20/720:05
LHR
-
FNA
2 stops22h 20m
SWISS
Wed 21/1018:45
FNA
-
LHR
3 stops15h 35m
SWISS
Deal found 21/4£713
Wed 3/620:05
LHR
-
FNA
2 stops22h 10m
SWISS
Wed 10/618:45
FNA
-
LHR
3 stops15h 35m
SWISS
Deal found 19/4£715
Mon 23/1106:50
LHR
-
FNA
1 stop11h 35m
Brussels Airlines
Mon 14/1219:45
FNA
-
LHR
2 stops14h 20m
Brussels Airlines
Deal found 18/4£717
Thu 25/620:05
LHR
-
FNA
2 stops22h 20m
SWISS
Thu 17/918:35
FNA
-
LHR
3 stops26h 10m
SWISS
Deal found 22/4£719
Tue 24/1120:05
LHR
-
FNA
2 stops22h 35m
Multiple Airlines
Tue 30/318:45
FNA
-
LHR
2 stops14h 30m
Multiple Airlines
Deal found 19/4£720
Sun 1/1109:00
LHR
-
FNA
2 stops33h 25m
SWISS
Sun 15/1120:10
FNA
-
LHR
3 stops25h 30m
SWISS
Deal found 21/4£721
Mon 23/1120:05
LHR
-
FNA
2 stops22h 35m
SWISS
Mon 14/1219:45
FNA
-
LHR
3 stops15h 30m
SWISS
Deal found 18/4£722
Wed 3/606:50
LHR
-
FNA
1 stop11h 35m
Multiple Airlines
Wed 10/618:45
FNA
-
LHR
3 stops15h 35m
Multiple Airlines
Deal found 19/4£722
Sat 21/1118:00
LHR
-
FNA
1 stop10h 20m
Royal Air Maroc
Wed 30/1205:20
FNA
-
LHR
1 stop11h 40m
Royal Air Maroc
Deal found 20/4£726

Find flight deals from Heathrow to Sierra Leone

Keep the following information in mind while searching for Heathrow to Sierra Leone flight deals. Data was last updated 22 April 2026.

Round-trip from

£698

One-way from

£320

Popular in

December

Cheapest in

February

Average price

£740
SWISS
  • SWISS
  • 1/10-16/11
  • 5 total stops
  • 41h 00m total
  • London to Sierra Leone
Search Deals
8/6
  • 8/6
  • 2 total stops
  • 35h 45m total
  • London to Sierra Leone
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Sierra Leone 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 22 April 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Sierra Leone that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonFreetown

LHR - FNA

LHRFNA

London Heathrow

Wed 3/6

06:50-17:25

1 stop11h 35m

Freetown Lungi Intl

Wed 10/6

18:45-17:05

2 stops21h 20m

£772

LondonFreetown

LHR - FNA

LHRFNA

London Heathrow

Fri 5/6

06:50-17:25

1 stop11h 35m

Freetown Lungi Intl

Fri 12/6

18:45-21:35

2 stops25h 50m

£802

LondonFreetown

LHR - FNA

LHRFNA

London Heathrow

Sun 17/5

06:50-17:25

1 stop11h 35m

Freetown Lungi Intl

Mon 22/6

18:35-17:05

2 stops21h 30m

£827

LondonFreetown

LHR - FNA

LHRFNA

London Heathrow

Thu 4/6

20:05-17:25

2 stops22h 20m

Freetown Lungi Intl

Fri 12/6

18:45-16:25

3 stops44h 40m

£894

LondonFreetown

LHR - FNA

LHRFNA

London Heathrow

Mon 8/6

20:05-17:25

2 stops22h 20m

Freetown Lungi Intl

Mon 22/6

18:35-17:05

2 stops21h 30m

£894

LondonFreetown

LHR - FNA

LHRFNA

London Heathrow

Wed 13/5

06:50-17:25

1 stop11h 35m

Freetown Lungi Intl

Wed 3/6

18:45-13:00

3 stops17h 15m

£956
Fastest return journey

LondonFreetown

LHR - FNA

LHRFNA

London Heathrow

Fri 15/5

06:50-17:25

1 stop11h 35m

Freetown Lungi Intl

Tue 2/6

18:45-11:20

3 stops15h 35m

£957

LondonFreetown

LHR - FNA

LHRFNA

London Heathrow

Tue 21/7

06:50-17:25

1 stop11h 35m

Freetown Lungi Intl

Wed 21/10

18:45-17:05

2 stops21h 20m

£993

LondonFreetown

LHR - FNA

LHRFNA

London Heathrow

Mon 20/7

11:05-17:25

1 stop31h 20m

Freetown Lungi Intl

Fri 31/7

18:45-21:35

2 stops25h 50m

£1,027

LondonFreetown

LHR - FNA

LHRFNA

London Heathrow

Sun 3/5

06:50-17:25

1 stop11h 35m

Freetown Lungi Intl

Wed 13/5

18:45-13:40

3 stops17h 55m

£1,153

Flights are sorted by cheapest return flights first.

Deals found on 20/4

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to Sierra Leone

Have a flexible travel schedule? Discover the best time to fly to Sierra Leone 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 Sierra Leone

What is the cheapest month to book a flight from London Heathrow Airport to Sierra Leone?

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Sierra Leone (average of £473). Flying from London Heathrow Airport to Sierra Leone in April is currently the most expensive (average of £664). 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 Sierra Leone

Get insights into the airlines that provide service to Sierra Leone. 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 Sierra Leone. Reviews last updated 22 April 2026.
See what other customers who have flown with SWISS,Turkish Airlines, andBrussels Airlines from London Heathrow Airport to Sierra Leone have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.6
Good
1,926 reviews
Check prices

Boarding

7.7

Overall

7.6

Crew

8.3

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
SWISS
7.6
Good
1,926 reviews
SWISS
7.6
Good
1,926 reviews
Check prices

Boarding

7.7

Overall

7.6

Crew

8.3

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Turkish Airlines
7.4
Good
4,326 reviews
SWISS
7.6
Good
1,926 reviews
Check prices

Boarding

7.7

Overall

7.6

Crew

8.3

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Brussels Airlines
7.2
Good
404 reviews
SWISS
7.6
Good
1,926 reviews
Check prices

Boarding

7.7

Overall

7.6

Crew

8.3

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.
Royal Air Maroc
6.2
Okay
591 reviews
SWISS
7.6
Good
1,926 reviews
Check prices

Boarding

7.7

Overall

7.6

Crew

8.3

Entertainment

6.8

Food

7.1

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Sierra Leone. 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 London Heathrow Airport to Sierra Leone?

    Airlines like Brussels Airlines and SWISS fly from London Heathrow Airport to Sierra Leone in about 11h 35m. The time it takes to get you to your destination can typically vary by up to 10h 45m. The distance between London Heathrow Airport and Sierra Leone is about 3046 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Heathrow to Sierra Leone that include hotel bookings?

    Yes. In addition to deals on Heathrow to Sierra Leone flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Sierra Leone?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Sierra Leone.

  • Can I find deals for business class flights from Heathrow to Sierra Leone?

    Yes. Cheapflights offers flight deals from Heathrow to Sierra Leone 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 Sierra Leone?

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Sierra Leone (average of £473). Flying from London Heathrow Airport to Sierra Leone in April is currently the most expensive (average of £664). 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 Sierra Leone

See prices for flight routes from nearby airports that may be better suited for you.
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London City to OR Tambo flights
London City to Jomo Kenyatta Intl flights
Stansted to Cape Town flights
Luton to Marrakech flights
London City to Cape Town flights
Heathrow to Algiers flights
Stansted to Cairo flights
Gatwick to Cairo flights
Heathrow to Harare flights
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Luton to Accra flights
London City to Cairo flights
Gatwick to Casablanca flights
Heathrow to Casablanca flights
Heathrow to Abuja flights
Heathrow to Entebbe flights
Gatwick to Harare flights
Luton to Jomo Kenyatta Intl flights
London City to Algiers flights
Stansted to Port Louis flights
Heathrow to Zanzibar flights
Stansted to Harare flights
Gatwick to Cape Town flights
Stansted to Entebbe flights
London City to Entebbe flights
Heathrow to Agadir flights

Top 4 airlines flying from Heathrow to Sierra Leone

Discover the top 4 airlines that operate flights from Heathrow to Sierra Leone. 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 22 April 2026.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest£645Average£780FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Brussels AirlinesCheapest£650Average£826FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Royal Air MarocCheapest£676Average£884FlexibilityNo cancel feeOn-time75%
Search Royal Air Maroc flights
Turkish AirlinesCheapest£762Average£975FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines 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 Sierra Leone?

When you search for this flight from Heathrow to Sierra Leone, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Sierra Leone?

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

Can Cheapflights find flights from Heathrow to Sierra Leone with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Sierra Leone with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Sierra Leone become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to Sierra Leone on Cheapflights with our Price Alert feature and get notified when better prices are available.

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