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Cheap flights from Sierra Leone to London Heathrow Airport from £481

FNA — LHR
22 Sep — 29 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

Tue 15/1205:20 -
1 stop10h 30m
Tue 12/117:10 -
1 stop11h 10m
Deal found 22/8£601
Tue 29/918:45 -
2 stops14h 30m
Wed 30/920:05 -
2 stops22h 10m
Deal found 21/8£692
Tue 15/1220:10 -
2 stops25h 10m
Tue 12/106:50 -
1 stop11h 50m
Deal found 22/8£719
Fri 11/918:40 -
2 stops20h 35m
Sat 26/918:25 -
2 stops24h 15m
Deal found 19/8£728
Thu 1/1008:00 -
2 stops31h 15m
Mon 26/1017:25 -
2 stops24h 05m
Deal found 18/8£730
Tue 15/1220:10 -
2 stops13h 55m
Tue 12/118:40 -
2 stops24h 00m
Deal found 22/8£733
Wed 7/1018:45 -
2 stops14h 30m
Wed 14/1006:50 -
1 stop11h 35m
Deal found 20/8£734
Wed 30/918:45 -
2 stops14h 30m
Wed 21/1006:50 -
1 stop11h 35m
Deal found 21/8£735
Fri 2/1018:45 -
2 stops25h 50m
Fri 9/1006:50 -
1 stop11h 35m
Deal found 18/8£739
Fri 18/918:40 -
2 stops20h 35m
Mon 5/1018:45 -
2 stops23h 55m
Deal found 20/8£745
Tue 15/1220:10 -
3 stops20h 10m
Tue 12/118:40 -
2 stops24h 00m
Deal found 22/8£747

Find flight deals from Sierra Leone to Heathrow

Round-trip from

£601

One-way from

£481

Popular in

September

Cheapest in

March

Average price

£1,150
Royal Air Maroc
  • Royal Air Maroc
  • 15/12-12/1
  • 2 total stops
  • 21h 40m total
  • Sierra Leone to London
Search Deals
Royal Air Maroc
  • Royal Air Maroc
  • 30/9
  • 1 total stop
  • 11h 20m total
  • Sierra Leone to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£155 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
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

Tue 29/9

18:45-10:15

2 stops14h 30m

London Heathrow

Wed 30/9

20:05-17:15

2 stops22h 10m

£692

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Tue 15/12

20:10-10:05

2 stops13h 55m

London Heathrow

Tue 12/1

18:40-18:40

2 stops24h 00m

£733

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Fri 9/10

18:45-21:35

2 stops25h 50m

London Heathrow

Fri 23/10

06:50-17:25

1 stop11h 35m

£766

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Fri 9/10

18:45-16:25

3 stops20h 40m

London Heathrow

Fri 23/10

06:50-17:25

1 stop11h 35m

£775
Fastest return journey

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Fri 18/9

18:45-10:15

2 stops14h 30m

London Heathrow

Fri 25/9

06:50-17:25

1 stop11h 35m

£778

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Fri 18/9

18:45-07:55

3 stops36h 10m

London Heathrow

Fri 25/9

06:50-17:25

1 stop11h 35m

£778

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Fri 18/9

18:45-07:55

3 stops36h 10m

London Heathrow

Fri 25/9

19:15-17:25

2 stops47h 10m

£816

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Thu 11/2

08:00-15:30

2 stops31h 30m

London Heathrow

Wed 31/3

18:25-16:20

2 stops46h 55m

£854

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Sat 3/10

08:00-16:15

2 stops31h 15m

London Heathrow

Sat 10/10

17:10-17:40

3 stops25h 30m

£880
Cheapest one-way

FreetownLondon

FNA Freetown Lungi Intl - LHR London Heathrow

FNALHR

Freetown Lungi Intl

Wed 30/9

05:25-17:45

1 stop11h 20m

£481

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 21 resultsSorted by cheapest first
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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

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 £648). Flying from Sierra Leone to London Heathrow Airport in August is currently the most expensive (average of £1,766). 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

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
7.3
Good
432 reviews
Check prices

Entertainment

6.2

Boarding

7.4

Comfort

7.0

Food

6.3

Crew

7.9

Overall

7.3

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
432 reviews
Brussels Airlines
7.3
Good
432 reviews
Check prices

Entertainment

6.2

Boarding

7.4

Comfort

7.0

Food

6.3

Crew

7.9

Overall

7.3

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!
Ethiopian Air
7.2
Good
1,033 reviews
Brussels Airlines
7.3
Good
432 reviews
Check prices

Entertainment

6.2

Boarding

7.4

Comfort

7.0

Food

6.3

Crew

7.9

Overall

7.3

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
624 reviews
Brussels Airlines
7.3
Good
432 reviews
Check prices

Entertainment

6.2

Boarding

7.4

Comfort

7.0

Food

6.3

Crew

7.9

Overall

7.3

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

  • How long is the flight from Sierra Leone to London Heathrow Airport?

    Airlines like Brussels Airlines fly from Sierra Leone to London Heathrow Airport in about 25h 50m. The time it takes to get you to your destination can typically vary by up to . The distance between Sierra Leone and London Heathrow Airport is about 3046 mi.

  • 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 £457 on Royal Air Maroc. Other airlines that offer cheap prices include Brussels Airlines from £480 and SWISS from £524 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 £648). Flying from Sierra Leone to London Heathrow Airport in August is currently the most expensive (average of £1,766). 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
Luton
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Northampton
Southend-on-Sea
Barnet
Enfield
Swindon
Kingston upon Thames
Southall
Salisbury

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Sierra Leone to Heathrow

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Top 3 airlines flying from Sierra Leone to Heathrow

AirlineCheapestAverageFlexibilityOn-time
Royal Air MarocCheapest£635Average£711FlexibilityNo cancel feeOn-time75%
Search Royal Air Maroc flights
Brussels AirlinesCheapest£667Average£768FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Ethiopian AirCheapest£1,649Average£1,766FlexibilityNo cancel feeOn-time72%
Search Ethiopian Air flights

Fly with Cheapflights

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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