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Cheap flights from Sierra Leone to London Heathrow Airport from £457

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 19/1. Fares are subject to change and may not be available on all flights or dates of travel.
FNA — LHR
24 Dec — 31 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Sierra Leone to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Sierra Leone to Heathrow
Explore the most affordable flight options available from Sierra Leone to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 November 2025.

Wed 31/1220:10FNA - LHR
2 stops25h 10mBrussels Airlines
Sat 31/106:50LHR - FNA
1 stop11h 50mBrussels Airlines
Deal found 23/11£666
Wed 31/1220:10FNA - LHR
2 stops25h 10mMultiple Airlines
Sat 31/117:10LHR - FNA
2 stops25h 30mMultiple Airlines
Deal found 23/11£695
Wed 31/1220:10FNA - LHR
3 stops16h 50mSWISS
Sat 31/120:05LHR - FNA
2 stops22h 35mSWISS
Deal found 23/11£719
Sun 21/1220:10FNA - LHR
2 stops20h 55mBrussels Airlines
Sat 3/111:05LHR - FNA
1 stop31h 35mBrussels Airlines
Deal found 24/11£734
Sun 21/1220:10FNA - LHR
2 stops25h 10mMultiple Airlines
Sat 3/106:00LHR - FNA
2 stops36h 40mMultiple Airlines
Deal found 24/11£739
Thu 18/1219:45FNA - LHR
2 stops14h 20mBrussels Airlines
Sun 18/106:50LHR - FNA
1 stop11h 50mBrussels Airlines
Deal found 24/11£768
Sun 21/1205:20FNA - LHR
1 stop10h 20mRoyal Air Maroc
Sat 3/117:10LHR - FNA
1 stop11h 10mRoyal Air Maroc
Deal found 24/11£772
Sun 21/1220:10FNA - LHR
3 stops25h 30mSWISS
Sat 3/106:00LHR - FNA
2 stops36h 40mSWISS
Deal found 24/11£775
Thu 18/1219:45FNA - LHR
2 stops25h 35mMultiple Airlines
Sun 18/120:05LHR - FNA
2 stops22h 20mMultiple Airlines
Deal found 24/11£795
Thu 18/1219:45FNA - LHR
3 stops22h 05mSWISS
Sun 18/120:05LHR - FNA
2 stops22h 20mSWISS
Deal found 24/11£850
Wed 10/1205:20FNA - LHR
1 stop11h 40mRoyal Air Maroc
Mon 29/1217:10LHR - FNA
1 stop11h 10mRoyal Air Maroc
Deal found 24/11£865
Wed 10/1220:10FNA - LHR
2 stops25h 10mBrussels Airlines
Mon 29/1211:05LHR - FNA
1 stop31h 35mBrussels Airlines
Deal found 24/11£898

Cheap flight deals from Sierra Leone to Heathrow

Keep the following information in mind while searching for Sierra Leone to Heathrow flight deals. Data was last updated 24 November 2025.

Round-trip from

£666

One-way from

£457

Popular in

August

Cheapest in

September

Average price

£878
Brussels Airlines
  • Brussels Airlines
  • 31/12-31/1
  • 3 total stops
  • 37h 00m total
  • Sierra Leone to London
Search Deals
Kenya Airways
  • Kenya Airways
  • 19/1
  • 2 total stops
  • 31h 25m total
  • Sierra Leone to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£30 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sierra Leone to Heathrow 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 24 November 2025.
Use the filters below to find and compare flights from Sierra Leone to London Heathrow Airport that are best for you.

Fly from

Sierra Leone

Fly to

Heathrow

Route

Depart

Return

Price

FreetownLondon

FNA - LHR

FNALHR

Freetown Lungi Intl

Thu 18/12

19:45-10:05

2 stops14h 20m

London Heathrow

Sun 18/1

06:50-18:40

1 stop11h 50m

£768

FreetownLondon

FNA - LHR

FNALHR

Freetown Lungi Intl

Fri 26/12

05:20-15:40

1 stop10h 20m

London Heathrow

Thu 1/1

17:10-04:20

1 stop11h 10m

£772

FreetownLondon

FNA - LHR

FNALHR

Freetown Lungi Intl

Sun 21/12

20:10-21:40

3 stops25h 30m

London Heathrow

Sat 3/1

06:00-18:40

2 stops36h 40m

£775

FreetownLondon

FNA - LHR

FNALHR

Freetown Lungi Intl

Wed 25/2

08:05-15:30

2 stops31h 25m

London Heathrow

Mon 2/3

17:25-17:30

2 stops24h 05m

£782

FreetownLondon

FNA - LHR

FNALHR

Freetown Lungi Intl

Tue 24/2

08:05-15:30

2 stops31h 25m

London Heathrow

Mon 2/3

17:25-17:30

2 stops24h 05m

£782

FreetownLondon

FNA - LHR

FNALHR

Freetown Lungi Intl

Thu 22/1

08:05-15:30

2 stops31h 25m

London Heathrow

Sun 25/1

19:20-17:30

3 stops46h 10m

£783

FreetownLondon

FNA - LHR

FNALHR

Freetown Lungi Intl

Thu 18/12

19:45-21:20

2 stops25h 35m

London Heathrow

Sun 18/1

20:05-18:25

2 stops22h 20m

£795

FreetownLondon

FNA - LHR

FNALHR

Freetown Lungi Intl

Mon 23/2

19:45-10:05

2 stops14h 20m

London Heathrow

Mon 2/3

06:50-18:25

1 stop11h 35m

£798

FreetownLondon

FNA - LHR

FNALHR

Freetown Lungi Intl

Mon 23/2

19:45-11:15

3 stops15h 30m

London Heathrow

Mon 2/3

06:50-18:25

1 stop11h 35m

£811

FreetownLondon

FNA - LHR

FNALHR

Freetown Lungi Intl

Thu 18/12

19:45-17:50

3 stops22h 05m

London Heathrow

Sun 18/1

20:05-18:25

2 stops22h 20m

£850

Flights are sorted by cheapest return flights first.

Deals found on 23/11

Showing 1-10 of 22 results
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Best time to book a flight from Sierra Leone to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Sierra Leone 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 Sierra Leone to London Heathrow Airport

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

Currently, February is the cheapest month in which you can book a flight from Sierra Leone to London Heathrow Airport (average of £630). Flying from Sierra Leone to London Heathrow Airport in April is currently the most expensive (average of £837). 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 Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 24 November 2025.
Check out reviews from past customers who have flown with Brussels Airlines, Ethiopian Air, andRoyal Air Maroc from Sierra Leone to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Brussels Airlines
7.2
Good
370 reviews
Check prices

Overall

7.2

Boarding

7.3

Crew

7.9

Food

6.2

Entertainment

6.1

Comfort

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Oct 2025

GVA - BRU

The flight delays in Brussels were so bad they rebooked me to Austrian Air, which was fine
Brussels Airlines
7.2
Good
370 reviews
Brussels Airlines
7.2
Good
370 reviews
Check prices

Overall

7.2

Boarding

7.3

Crew

7.9

Food

6.2

Entertainment

6.1

Comfort

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Oct 2025

GVA - BRU

The flight delays in Brussels were so bad they rebooked me to Austrian Air, which was fine
Ethiopian Air
7.2
Good
897 reviews
Brussels Airlines
7.2
Good
370 reviews
Check prices

Overall

7.2

Boarding

7.3

Crew

7.9

Food

6.2

Entertainment

6.1

Comfort

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Oct 2025

GVA - BRU

The flight delays in Brussels were so bad they rebooked me to Austrian Air, which was fine
Royal Air Maroc
6.2
Okay
530 reviews
Brussels Airlines
7.2
Good
370 reviews
Check prices

Overall

7.2

Boarding

7.3

Crew

7.9

Food

6.2

Entertainment

6.1

Comfort

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Oct 2025

GVA - BRU

The flight delays in Brussels were so bad they rebooked me to Austrian Air, which was fine

Related info for your journey

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

    Airlines like Brussels Airlines, Royal Air Maroc, and SWISS fly from Sierra Leone to London Heathrow Airport in about 10h 20m. The time it takes to get you to your destination can typically vary by up to 15h 10m. The distance between Sierra Leone and London Heathrow Airport is about 3046 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Sierra Leone to London Heathrow Airport (average of £630). Flying from Sierra Leone to London Heathrow Airport in April is currently the most expensive (average of £837). 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 Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sierra Leone to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Sierra Leone to Heathrow

Discover the top 3 airlines that operate flights from Sierra Leone to Heathrow. 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 24 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Royal Air MarocCheapest£630Average£642FlexibilityNo cancel feeOn-time75%
Search Royal Air Maroc flights
Brussels AirlinesCheapest£650Average£784FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Ethiopian AirCheapest£784Average£808FlexibilityNo cancel feeOn-time72%
Search Ethiopian Air 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 Sierra Leone to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sierra Leone to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to Heathrow from Sierra Leone by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sierra Leone to Heathrow, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Sierra Leone to Heathrow 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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