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Cheap flights from Sierra Leone to London Heathrow Airport from £479

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
FNA — LHR
6 Sep — 13 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 7 August 2026.

Fri 11/918:45 -
2 stops25h 50m
Fri 25/906:50 -
1 stop11h 35m
Deal found 3/8£714
Wed 4/1105:20 -
1 stop11h 40m
Wed 6/118:00 -
1 stop10h 20m
Deal found 4/8£718
Fri 18/918:40 -
2 stops20h 35m
Mon 28/918:25 -
2 stops24h 15m
Deal found 4/8£719
Mon 12/1018:35 -
2 stops14h 40m
Sun 25/1006:50 -
1 stop11h 50m
Deal found 6/8£732
Wed 14/1018:45 -
2 stops14h 30m
Thu 29/1011:05 -
1 stop31h 35m
Deal found 3/8£732
Sun 27/918:40 -
3 stops44h 35m
Mon 9/1111:45 -
3 stops29h 45m
Deal found 3/8£735
Wed 14/1018:45 -
2 stops21h 20m
Thu 29/1013:45 -
2 stops28h 55m
Deal found 3/8£738
Mon 12/1018:35 -
2 stops14h 40m
Sun 25/1006:00 -
2 stops36h 25m
Deal found 6/8£738
Sun 27/918:45 -
2 stops14h 30m
Mon 9/1106:50 -
1 stop11h 35m
Deal found 3/8£743
Tue 8/918:45 -
2 stops21h 20m
Tue 29/906:50 -
1 stop11h 35m
Deal found 3/8£746
Wed 14/1018:45 -
3 stops22h 05m
Thu 29/1017:10 -
2 stops25h 30m
Deal found 3/8£752

Find 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 7 August 2026.

Round-trip from

£714

One-way from

£479

Popular in

September

Cheapest in

March

Average price

£1,146
Brussels Airlines
  • Brussels Airlines
  • 11/9-25/9
  • 3 total stops
  • 37h 25m total
  • Sierra Leone to London
Search Deals
Royal Air Maroc
  • Royal Air Maroc
  • 13/9
  • 1 total stop
  • 10h 25m total
  • Sierra Leone to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£156 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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 7 August 2026.
Use the filters below to find and compare flights from Sierra Leone to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Mon 5/10

18:35-10:15

2 stops14h 40m

London Heathrow

Thu 15/10

20:05-17:25

2 stops22h 20m

£773

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Wed 4/11

20:10-13:00

3 stops16h 50m

London Heathrow

Wed 6/1

06:50-18:40

1 stop11h 50m

£773

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Fri 18/9

18:45-07:55

3 stops36h 10m

London Heathrow

Mon 28/9

20:05-17:25

2 stops22h 20m

£816

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Thu 15/10

08:00-16:15

2 stops31h 15m

London Heathrow

Sun 25/10

17:25-16:20

2 stops46h 55m

£880

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Fri 18/9

18:40-07:55

3 stops36h 15m

London Heathrow

Mon 28/9

17:10-17:40

3 stops25h 30m

£977

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Thu 27/8

18:35-21:45

3 stops26h 10m

London Heathrow

Wed 9/9

17:55-17:15

1 stop24h 20m

£1,099

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Sun 18/10

18:40-07:55

3 stops36h 15m

London Heathrow

Mon 26/10

10:00-17:30

3 stops31h 30m

£1,114

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Thu 27/8

18:35-19:20

3 stops23h 45m

London Heathrow

Thu 10/9

08:45-17:25

2 stops33h 40m

£1,115
Fastest return journey

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Wed 26/8

05:25-17:45

1 stop11h 20m

London Heathrow

Fri 11/9

06:50-17:25

1 stop11h 35m

£1,299

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Thu 20/8

18:35-13:00

3 stops17h 25m

London Heathrow

Mon 7/9

06:50-17:15

1 stop11h 25m

£1,304

Flights are sorted by cheapest return flights first.

Deals found on 5/8

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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, June is the cheapest month in which you can book a flight from Sierra Leone to London Heathrow Airport (average of £657). Flying from Sierra Leone to London Heathrow Airport in August is currently the most expensive (average of £1,790). 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 7 August 2026.
Check out reviews from past customers who have flown with Brussels Airlines and Royal 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
7.3
Good
430 reviews
Check prices

Food

6.4

Boarding

7.4

Overall

7.3

Crew

7.9

Comfort

7.0

Entertainment

6.2

Reviews

1 / 20
8.0
Excellent

Courtney,Jul 2026

MXP - YUL

For a flight this long, the airline needs to use a plane with lay flat seats. It greatly and negatively impacted the experience. The BIG complaint I have about the flight was the temperature. I was wearing a jogging suit with a t-shirt under, I also had my jacket on my legs and the one blanket I could get onboard over the top of my body with a hood on my head and I was freezing! The reason I could only get one blanket is everyone else was also freezing and also requested blankets. I hope this stops!
Brussels Airlines
7.3
Good
430 reviews
Brussels Airlines
7.3
Good
430 reviews
Check prices

Food

6.4

Boarding

7.4

Overall

7.3

Crew

7.9

Comfort

7.0

Entertainment

6.2

Reviews

1 / 20
8.0
Excellent

Courtney,Jul 2026

MXP - YUL

For a flight this long, the airline needs to use a plane with lay flat seats. It greatly and negatively impacted the experience. The BIG complaint I have about the flight was the temperature. I was wearing a jogging suit with a t-shirt under, I also had my jacket on my legs and the one blanket I could get onboard over the top of my body with a hood on my head and I was freezing! The reason I could only get one blanket is everyone else was also freezing and also requested blankets. I hope this stops!
Royal Air Maroc
6.2
Okay
626 reviews
Brussels Airlines
7.3
Good
430 reviews
Check prices

Food

6.4

Boarding

7.4

Overall

7.3

Crew

7.9

Comfort

7.0

Entertainment

6.2

Reviews

1 / 20
8.0
Excellent

Courtney,Jul 2026

MXP - YUL

For a flight this long, the airline needs to use a plane with lay flat seats. It greatly and negatively impacted the experience. The BIG complaint I have about the flight was the temperature. I was wearing a jogging suit with a t-shirt under, I also had my jacket on my legs and the one blanket I could get onboard over the top of my body with a hood on my head and I was freezing! The reason I could only get one blanket is everyone else was also freezing and also requested blankets. I hope this stops!

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 SWISS and Kenya Airways fly from Sierra Leone to London Heathrow Airport in about 31h 15m. The time it takes to get you to your destination can typically vary by up to 4h 55m. 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.

  • What are the cheapest airlines to fly from Sierra Leone to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as £461 on Brussels Airlines. Other airlines that offer cheap prices include Royal Air Maroc from £463 and SWISS from £531 one-way.

  • 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, June is the cheapest month in which you can book a flight from Sierra Leone to London Heathrow Airport (average of £657). Flying from Sierra Leone to London Heathrow Airport in August is currently the most expensive (average of £1,790). 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
Hounslow
Milton Keynes
Gatwick
Luton
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Northampton
Watford
Swindon
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Poole

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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 2 airlines flying from Sierra Leone to Heathrow

Discover the top 2 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 7 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Royal Air MarocCheapest£644Average£721FlexibilityNo cancel feeOn-time75%
Search Royal Air Maroc flights
Brussels AirlinesCheapest£676Average£779FlexibilityNo cancel feeOn-timeN/A
Search Brussels 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 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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