£498 Find Cheap Flights from Sierra Leone to London Heathrow Airport – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Heathrow departing on 18/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Sierra Leone to Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sierra Leone to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sierra Leone to Heathrow

Fri, 18 Dec - Fri, 1 Jan
Royal Air Maroc Logo
05:20 - 15:50FNA  Freetown Lungi Intl-LHR London Heathrow
10h 30m1 stop Casablanca Mohamed V
Royal Air Maroc Logo
17:10 - 04:20LHR  London Heathrow-FNA Freetown Lungi Intl
11h 10m1 stop Casablanca Mohamed V
£591Royal Air Maroc
Fri, 18 Dec - Sat, 2 Jan
Royal Air Maroc Logo
05:20 - 15:50FNA  Freetown Lungi Intl-LHR London Heathrow
10h 30m1 stop Casablanca Mohamed V
Royal Air Maroc Logo
17:10 - 04:20LHR  London Heathrow-FNA Freetown Lungi Intl
11h 10m1 stop Casablanca Mohamed V
£602Royal Air Maroc
Fri, 18 Sep - Thu, 24 Sep
Kenya Airways Logo
18:40 - 16:15FNA  Freetown Lungi Intl-LHR London Heathrow
20h 35m2 stops Accra Kotoka Nairobi Jomo Kenyatta Intl
Kenya Airways Logo
18:25 - 17:40LHR  London Heathrow-FNA Freetown Lungi Intl
24h 15m2 stops Nairobi Jomo Kenyatta Intl Accra Kotoka
£714Kenya Airways
Fri, 18 Sep - Mon, 28 Sep
Kenya Airways Logo
18:40 - 16:15FNA  Freetown Lungi Intl-LHR London Heathrow
20h 35m2 stops Accra Kotoka Nairobi Jomo Kenyatta Intl
Kenya Airways Logo
18:25 - 17:40LHR  London Heathrow-FNA Freetown Lungi Intl
24h 15m2 stops Nairobi Jomo Kenyatta Intl Accra Kotoka
£715Kenya Airways
Fri, 18 Sep - Thu, 24 Sep
Brussels Airlines Logo
18:45 - 10:15FNA  Freetown Lungi Intl-LHR London Heathrow
14h 30m2 stops Monrovia Roberts Intl Brussels Bruxelles-National
Brussels Airlines Logo
06:50 - 17:15LHR  London Heathrow-FNA Freetown Lungi Intl
11h 25m1 stop Brussels Bruxelles-National
£736Brussels Airlines
Fri, 18 Sep - Thu, 24 Sep
Royal Air Maroc Logo
05:25 - 16:50FNA  Freetown Lungi Intl-LHR London Heathrow
10h 25m1 stop Casablanca Mohamed V
Royal Air Maroc Logo
18:10 - 04:25LHR  London Heathrow-FNA Freetown Lungi Intl
11h 15m1 stop Casablanca Mohamed V
£749Royal Air Maroc
Tue, 15 Sep - Tue, 22 Sep
Brussels Airlines Logo
18:45 - 17:05FNA  Freetown Lungi Intl-LHR London Heathrow
21h 20m2 stops Monrovia Roberts Intl Brussels Bruxelles-National
Brussels Airlines Logo
06:50 - 17:25LHR  London Heathrow-FNA Freetown Lungi Intl
11h 35m1 stop Brussels Bruxelles-National
£753Brussels Airlines
Tue, 15 Sep - Tue, 22 Sep
Multiple Airlines Logo
18:45 - 13:00FNA  Freetown Lungi Intl-LHR London Heathrow
17h 15m3 stops Monrovia Roberts Intl Brussels Bruxelles-National Zurich
Multiple Airlines Logo
06:50 - 17:25LHR  London Heathrow-FNA Freetown Lungi Intl
11h 35m1 stop Brussels Bruxelles-National
£756Multiple Airlines
Fri, 18 Sep - Mon, 28 Sep
Brussels Airlines Logo
18:45 - 21:35FNA  Freetown Lungi Intl-LHR London Heathrow
25h 50m2 stops Monrovia Roberts Intl Brussels Bruxelles-National
Brussels Airlines Logo
06:50 - 17:15LHR  London Heathrow-FNA Freetown Lungi Intl
11h 25m1 stop Brussels Bruxelles-National
£758Brussels Airlines
Fri, 18 Dec - Fri, 1 Jan
Ethiopian Air Logo
07:55 - 06:35FNA  Freetown Lungi Intl-LHR London Heathrow
22h 40m2 stops Accra Kotoka Addis Ababa Bole
Ethiopian Air Logo
20:15 - 16:45LHR  London Heathrow-FNA Freetown Lungi Intl
20h 30m2 stops Addis Ababa Bole Monrovia Roberts Intl
£1,465Ethiopian Air
Booking Insights

KAYAK's insights & trends for flights to Heathrow

Get data-powered insights and trends into flights to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to London Heathrow Airport is June, where tickets cost £652 on average for return flights. On the other hand, the most expensive months are August and May, where the average cost of tickets from Sierra Leone is £1,778 and £944 respectively. For one-way flights, the best month to travel is November with an average price of £483.

Good to know - Cheap tickets from Sierra Leone to London Heathrow Airport

Low season

September

Cheapest flight

£498
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Freetown to London Heathrow Airport

FAQs - booking London Heathrow Airport flights

  • How far is London Heathrow Airport from central London?

    You’ll need to travel 14 miles to reach the London city centre from London Heathrow Airport.

  • How does KAYAK find such low prices on flights to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to London Heathrow Airport are there each week?

    Each week there are around 1,577 direct flights from within Sierra Leone to London Heathrow Airport. The most common day for departures is Sunday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to London Heathrow Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

Reviews of the top 3 airlines flying from Sierra Leone to Heathrow

 
See real verified KAYAK customer reviews for airlines flying to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Sierra Leone to London. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Brussels AirlinesOverall score based on 429 reviews
7.0Comfort
7.9Crew
6.2Entertainment
7.4Boarding
6.4Food
Airline reviews

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

2.0 MediocreAnonymous, Sept 2025
Read more Brussels Airlines reviews

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

Too cramped up for the better seats I paid for.

I didn’t like my seat in my return flight from Montreal to Orlando at all; considering I paid extra for better seats. That middle seat was cramped up way too much.

Suitcase didn’t arrive to Stockholm. Chairs y comfy and not even water is offered

Original flight was canceled, booked another one and find out when checking I was on the waiting list. Horrible experience

Actually this is my first time using airline I was in every single thing that happened throughout our journey, the appearance of the plane inside furnished about the seating the flight attendants and many many more I was so excited throughout thank you Brussels Airlines for the great service.

Crew was enthusiastic. Meal was surprisingly good. They came to give water very frequently. Negative that the seat reclining didn't work

This was absolutely one of the worst experiences of my life. I came to Europe for a 2 week trip and the airline was probably the most disorganized airline I’ve ever seen in my life. They lost my luggage. I had tracking on it for just such an occasion and told them EXACTLY where it was in the terminal and they somehow failed to get it out on the flight that night, since we were leaving for Switzerland the next day there was no way they would get it to our hotel in time. Seriously, take another airline at any cost. It’s not worth whatever you pay…you’ll end up paying a lot more in the end. My medication is in the bag and I can’t get to it and don’t know how I will get it.

Been flying on various airlines, all over the world, for 50+ years. The food on Brussels Air was easily the worst I ever endured.

I have traveled to probably over a hundred locations worldwide, but had only one mixup of airport in Shanghai. Until Iceland and Stockholm. Reykjavik has 2 airports, Stockholm 4 (!). Please indicate clearly when a departure flight is scheduled from an aiport other than the international aiport. That would greatly reduce stress. Thanks

It was a great experience for my first time flying with this airline. I will be flying with them a lot more now. Plane crew was amazing.

The TV wasn't working No music for the whole flight from JFK to LOS It was too burring.

To the Ethiopian Airlines Customer Relations Team, I am writing to formally express my disappointment regarding my recent travel experience with Ethiopian Airlines on flight [I629/352] . Unfortunately, the level of service provided fell significantly short of the standards I expected from your airline. I would like to highlight the following serious issues encountered during the journey: • Cabin Condition and Hygiene: The aircraft cabin was notably poorly maintained. The seating area was dirty, and there was a persistent, unpleasant odor throughout the flight, which made the environment very uncomfortable for passengers. • Inadequate Service: The overall level of service provided by the staff was unsatisfactory and did not reflect a professional passenger experience. • Baggage Loss: Upon arrival, I was informed that my luggage was lost. This is particularly distressing as it has caused significant personal inconvenience and disruption to my schedule. As a frequent traveler, I value reliability and a clean cabin environment. I request that you investigate these matters immediately, provide an update on the status of my missing baggage, and outline how you intend to compensate for these failures in service. I look forward to your prompt response and a resolution to my lost luggage claim. Sincerely, Puguh

The flight is packed and it feels like the space per individual has gotten smaller. Excruciating for a 14hr flight.

The use of a domestic carrier without entertainment was disappointing and a let down

There where no ear phones provided and the food needs to improve.

I have been flew with ET since 2013 and I wish the service can be reach standard airlines as Star Alliance member please ET you need to improve many thing on the services learn from SQ and other member

Seat in front of my wife was broken so it reclined further than normal and without having to push the recline button so my wife had absolutely no room the entire 17 hour flight. My seat was broken and wouldn't recline at all. Also.. my tray table was sticky and dirty right away before I even used it. Also...the floor in the back of the plane from our row of seats on back was totally soaked and both times we landed water came rushing out of the food/servant area like a flood onto the same already wet carpet. It got everything wet that was placed around our feet...including our shoes and socks.

Flight was smooth but unnecessary long because we had to refuel at FCO Rome. Air hostesses service and response to call light could be better. Both planes were old with broken seat arms and toilets. Why Africans had to be given the farthest Gates is what baffles me and why we have to pay for Aisle seats I found really strange. Is there ever an end to ripping people off even after paying over $2300 for one seat.

The food really sucks And they really need to work on entertainment The movie selection is herendous .

We missed our connection and they put us in a hotel our luggage didn't get rerouted with us so we arrived with no luggage

The crew was friendly, 5/5 stars. The food was better than ok, 3.5/5 stars. The seats were tight, 3/5 stars. The entertainment was 2/5 stars because of lack of WiFi.

There is nothing Royal about Royal Air Maroc. Old planes, poor service, no entertainment and everyone of my 4 flights was late.

When the flight landed, it was still going towards the gate, when everybody got up. Nobody cared that the flight was still in "active taxi" mode. But seems like this is common on Air Maroc flights.

Seats were very uncomfortable (tight and hard). Flight was delayed due to technical problems. Baggage took an hour to arrive to the carousel.

While I had a business class ticket I wasn’t given priority to boar. Again my luggage had priority tags and these bags didn’t come out till the end!! The food at the lounge was only two type of sandwiches and warm juices and soft drinks I thought I’m paying for good services but the least u can say it’s mediocre at best. I’m considering not to use TAM AGAIN.

The service was terrible. We weren’t allowed to take water on the flight and the drinks were offered only at the end of the meal. When we used the button to call the flight attendants, they never showed up and when my daughter’s drink was spilled due to turbulences, she asked for something to clean her pants at least 4 times and eventually they gave her a tissue. The flight attendants were rude and overall the flight was terrible!

Good but your male staff should be more appreciative of customers. After all you are making a lot of monies from Nigerians.

I spent 4 hours untill get my bags no food no entertainment on the flight

Everything could have been better. Check-in was the worst. Staff was extremely slow for checking in. They were easily spending 10-15 minutes for every passenger. I almost missed my flight because there was huge line at Immigration also.

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Everything you need to know for your flight to Heathrow

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